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author | 2023-08-30 10:56:38 -0400 | |
---|---|---|
committer | 2023-08-30 10:56:38 -0400 | |
commit | 7f358e4ee5f57264ec5ddc6741ea2aea1e5c6a3f (patch) | |
tree | 0d08163312e7f4bdacd0ae9fb27b587f6d6a5f9f | |
parent | Linux patch 5.4.254 (diff) | |
download | linux-patches-7f358e4ee5f57264ec5ddc6741ea2aea1e5c6a3f.tar.gz linux-patches-7f358e4ee5f57264ec5ddc6741ea2aea1e5c6a3f.tar.bz2 linux-patches-7f358e4ee5f57264ec5ddc6741ea2aea1e5c6a3f.zip |
Linux patch 5.4.2555.4-262
Signed-off-by: Mike Pagano <mpagano@gentoo.org>
-rw-r--r-- | 0000_README | 4 | ||||
-rw-r--r-- | 1254_linux-5.4.255.patch | 8213 |
2 files changed, 8217 insertions, 0 deletions
diff --git a/0000_README b/0000_README index 3c468d97..250d3166 100644 --- a/0000_README +++ b/0000_README @@ -1059,6 +1059,10 @@ Patch: 1253_linux-5.4.254.patch From: https://www.kernel.org Desc: Linux 5.4.254 +Patch: 1254_linux-5.4.255.patch +From: https://www.kernel.org +Desc: Linux 5.4.255 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1254_linux-5.4.255.patch b/1254_linux-5.4.255.patch new file mode 100644 index 00000000..baf01c99 --- /dev/null +++ b/1254_linux-5.4.255.patch @@ -0,0 +1,8213 @@ +diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst +index 64aeee1009cab..fdc9c99437d1a 100644 +--- a/Documentation/admin-guide/sysctl/vm.rst ++++ b/Documentation/admin-guide/sysctl/vm.rst +@@ -61,6 +61,7 @@ Currently, these files are in /proc/sys/vm: + - overcommit_memory + - overcommit_ratio + - page-cluster ++- page_lock_unfairness + - panic_on_oom + - percpu_pagelist_fraction + - stat_interval +@@ -741,6 +742,14 @@ extra faults and I/O delays for following faults if they would have been part of + that consecutive pages readahead would have brought in. + + ++page_lock_unfairness ++==================== ++ ++This value determines the number of times that the page lock can be ++stolen from under a waiter. After the lock is stolen the number of times ++specified in this file (default is 5), the "fair lock handoff" semantics ++will apply, and the waiter will only be awakened if the lock can be taken. ++ + panic_on_oom + ============ + +diff --git a/Documentation/power/runtime_pm.rst b/Documentation/power/runtime_pm.rst +index 2c2ec99b50886..78bef529464fa 100644 +--- a/Documentation/power/runtime_pm.rst ++++ b/Documentation/power/runtime_pm.rst +@@ -382,6 +382,12 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: + nonzero, increment the counter and return 1; otherwise return 0 without + changing the counter + ++ `int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count);` ++ - return -EINVAL if 'power.disable_depth' is nonzero; otherwise, if the ++ runtime PM status is RPM_ACTIVE, and either ign_usage_count is true ++ or the device's usage_count is non-zero, increment the counter and ++ return 1; otherwise return 0 without changing the counter ++ + `void pm_runtime_put_noidle(struct device *dev);` + - decrement the device's usage counter + +diff --git a/MAINTAINERS b/MAINTAINERS +index 34d3497f11772..2040c2f76dcf7 100644 +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -1101,7 +1101,7 @@ APEX EMBEDDED SYSTEMS STX104 IIO DRIVER + M: William Breathitt Gray <vilhelm.gray@gmail.com> + L: linux-iio@vger.kernel.org + S: Maintained +-F: drivers/iio/adc/stx104.c ++F: drivers/iio/addac/stx104.c + + APM DRIVER + M: Jiri Kosina <jikos@kernel.org> +diff --git a/Makefile b/Makefile +index bf7299823095f..041adebe7da2d 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,7 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + VERSION = 5 + PATCHLEVEL = 4 +-SUBLEVEL = 254 ++SUBLEVEL = 255 + EXTRAVERSION = + NAME = Kleptomaniac Octopus + +diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi +index 8257630f7a491..42700d7f8bf74 100644 +--- a/arch/arm/boot/dts/imx23.dtsi ++++ b/arch/arm/boot/dts/imx23.dtsi +@@ -59,7 +59,7 @@ + reg = <0x80000000 0x2000>; + }; + +- dma_apbh: dma-apbh@80004000 { ++ dma_apbh: dma-controller@80004000 { + compatible = "fsl,imx23-dma-apbh"; + reg = <0x80004000 0x2000>; + interrupts = <0 14 20 0 +diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi +index e14d8ef0158b8..235c69bd181fe 100644 +--- a/arch/arm/boot/dts/imx28.dtsi ++++ b/arch/arm/boot/dts/imx28.dtsi +@@ -78,7 +78,7 @@ + status = "disabled"; + }; + +- dma_apbh: dma-apbh@80004000 { ++ dma_apbh: dma-controller@80004000 { + compatible = "fsl,imx28-dma-apbh"; + reg = <0x80004000 0x2000>; + interrupts = <82 83 84 85 +diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi +index bb02923bc2e5b..861392ff70861 100644 +--- a/arch/arm/boot/dts/imx6qdl.dtsi ++++ b/arch/arm/boot/dts/imx6qdl.dtsi +@@ -160,7 +160,7 @@ + interrupt-parent = <&gpc>; + ranges; + +- dma_apbh: dma-apbh@110000 { ++ dma_apbh: dma-controller@110000 { + compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh"; + reg = <0x00110000 0x2000>; + interrupts = <0 13 IRQ_TYPE_LEVEL_HIGH>, +diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi +index 790cc88c8b1ae..3dc1e97e145cd 100644 +--- a/arch/arm/boot/dts/imx6sx.dtsi ++++ b/arch/arm/boot/dts/imx6sx.dtsi +@@ -211,7 +211,7 @@ + power-domains = <&pd_pu>; + }; + +- dma_apbh: dma-apbh@1804000 { ++ dma_apbh: dma-controller@1804000 { + compatible = "fsl,imx6sx-dma-apbh", "fsl,imx28-dma-apbh"; + reg = <0x01804000 0x2000>; + interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>, +@@ -958,6 +958,8 @@ + <&clks IMX6SX_CLK_USDHC1>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-start-tap = <20>; ++ fsl,tuning-step= <2>; + status = "disabled"; + }; + +@@ -970,6 +972,8 @@ + <&clks IMX6SX_CLK_USDHC2>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-start-tap = <20>; ++ fsl,tuning-step= <2>; + status = "disabled"; + }; + +@@ -982,6 +986,8 @@ + <&clks IMX6SX_CLK_USDHC3>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-start-tap = <20>; ++ fsl,tuning-step= <2>; + status = "disabled"; + }; + +diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi +index 05390cc2a3b3b..5b677b66162ac 100644 +--- a/arch/arm/boot/dts/imx6ul.dtsi ++++ b/arch/arm/boot/dts/imx6ul.dtsi +@@ -174,7 +174,7 @@ + <0x00a06000 0x2000>; + }; + +- dma_apbh: dma-apbh@1804000 { ++ dma_apbh: dma-controller@1804000 { + compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh"; + reg = <0x01804000 0x2000>; + interrupts = <0 13 IRQ_TYPE_LEVEL_HIGH>, +diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi +index e5151a7849d6b..791530124fb0a 100644 +--- a/arch/arm/boot/dts/imx7s.dtsi ++++ b/arch/arm/boot/dts/imx7s.dtsi +@@ -1133,6 +1133,8 @@ + <&clks IMX7D_USDHC1_ROOT_CLK>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-step = <2>; ++ fsl,tuning-start-tap = <20>; + status = "disabled"; + }; + +@@ -1145,6 +1147,8 @@ + <&clks IMX7D_USDHC2_ROOT_CLK>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-step = <2>; ++ fsl,tuning-start-tap = <20>; + status = "disabled"; + }; + +@@ -1157,6 +1161,8 @@ + <&clks IMX7D_USDHC3_ROOT_CLK>; + clock-names = "ipg", "ahb", "per"; + bus-width = <4>; ++ fsl,tuning-step = <2>; ++ fsl,tuning-start-tap = <20>; + status = "disabled"; + }; + +@@ -1192,14 +1198,13 @@ + }; + }; + +- dma_apbh: dma-apbh@33000000 { ++ dma_apbh: dma-controller@33000000 { + compatible = "fsl,imx7d-dma-apbh", "fsl,imx28-dma-apbh"; + reg = <0x33000000 0x2000>; + interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; +- interrupt-names = "gpmi0", "gpmi1", "gpmi2", "gpmi3"; + #dma-cells = <1>; + dma-channels = <4>; + clocks = <&clks IMX7D_NAND_USDHC_BUS_RAWNAND_CLK>; +diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h +index 3e26b0c7391b8..ae4a2f52e3c4d 100644 +--- a/arch/mips/include/asm/cpu-features.h ++++ b/arch/mips/include/asm/cpu-features.h +@@ -124,7 +124,24 @@ + #define cpu_has_tx39_cache __opt(MIPS_CPU_TX39_CACHE) + #endif + #ifndef cpu_has_octeon_cache +-#define cpu_has_octeon_cache 0 ++#define cpu_has_octeon_cache \ ++({ \ ++ int __res; \ ++ \ ++ switch (boot_cpu_type()) { \ ++ case CPU_CAVIUM_OCTEON: \ ++ case CPU_CAVIUM_OCTEON_PLUS: \ ++ case CPU_CAVIUM_OCTEON2: \ ++ case CPU_CAVIUM_OCTEON3: \ ++ __res = 1; \ ++ break; \ ++ \ ++ default: \ ++ __res = 0; \ ++ } \ ++ \ ++ __res; \ ++}) + #endif + /* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */ + #ifndef cpu_has_fpu +@@ -341,7 +358,7 @@ + ({ \ + int __res; \ + \ +- switch (current_cpu_type()) { \ ++ switch (boot_cpu_type()) { \ + case CPU_M14KC: \ + case CPU_74K: \ + case CPU_1074K: \ +diff --git a/arch/mips/include/asm/dec/prom.h b/arch/mips/include/asm/dec/prom.h +index 1e1247add1cf8..908e96e3a3117 100644 +--- a/arch/mips/include/asm/dec/prom.h ++++ b/arch/mips/include/asm/dec/prom.h +@@ -70,7 +70,7 @@ static inline bool prom_is_rex(u32 magic) + */ + typedef struct { + int pagesize; +- unsigned char bitmap[0]; ++ unsigned char bitmap[]; + } memmap; + + +diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c +index 84f794782c62f..7defca2f8e8bf 100644 +--- a/arch/powerpc/kernel/rtas_flash.c ++++ b/arch/powerpc/kernel/rtas_flash.c +@@ -710,9 +710,9 @@ static int __init rtas_flash_init(void) + if (!rtas_validate_flash_data.buf) + return -ENOMEM; + +- flash_block_cache = kmem_cache_create("rtas_flash_cache", +- RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0, +- NULL); ++ flash_block_cache = kmem_cache_create_usercopy("rtas_flash_cache", ++ RTAS_BLK_SIZE, RTAS_BLK_SIZE, ++ 0, 0, RTAS_BLK_SIZE, NULL); + if (!flash_block_cache) { + printk(KERN_ERR "%s: failed to create block cache\n", + __func__); +diff --git a/arch/powerpc/mm/kasan/Makefile b/arch/powerpc/mm/kasan/Makefile +index 6577897673dda..22f1a7c3f4362 100644 +--- a/arch/powerpc/mm/kasan/Makefile ++++ b/arch/powerpc/mm/kasan/Makefile +@@ -1,5 +1,6 @@ + # SPDX-License-Identifier: GPL-2.0 + + KASAN_SANITIZE := n ++KCOV_INSTRUMENT := n + + obj-$(CONFIG_PPC32) += kasan_init_32.o +diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c +index 046782df37a6d..d8162f6baa5d5 100644 +--- a/arch/x86/kernel/fpu/xstate.c ++++ b/arch/x86/kernel/fpu/xstate.c +@@ -805,6 +805,14 @@ void __init fpu__init_system_xstate(void) + fpu__init_prepare_fx_sw_frame(); + setup_init_fpu_buf(); + setup_xstate_comp(); ++ ++ /* ++ * CPU capabilities initialization runs before FPU init. So ++ * X86_FEATURE_OSXSAVE is not set. Now that XSAVE is completely ++ * functional, set the feature bit so depending code works. ++ */ ++ setup_force_cpu_cap(X86_FEATURE_OSXSAVE); ++ + print_xstate_offset_size(); + + pr_info("x86/fpu: Enabled xstate features 0x%llx, context size is %d bytes, using '%s' format.\n", +diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c +index d5c2d86fbecd4..7f93ac63b5b64 100644 +--- a/drivers/base/power/runtime.c ++++ b/drivers/base/power/runtime.c +@@ -1048,8 +1048,10 @@ int __pm_runtime_idle(struct device *dev, int rpmflags) + int retval; + + if (rpmflags & RPM_GET_PUT) { +- if (!atomic_dec_and_test(&dev->power.usage_count)) ++ if (!atomic_dec_and_test(&dev->power.usage_count)) { ++ trace_rpm_usage_rcuidle(dev, rpmflags); + return 0; ++ } + } + + might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe); +@@ -1080,8 +1082,10 @@ int __pm_runtime_suspend(struct device *dev, int rpmflags) + int retval; + + if (rpmflags & RPM_GET_PUT) { +- if (!atomic_dec_and_test(&dev->power.usage_count)) ++ if (!atomic_dec_and_test(&dev->power.usage_count)) { ++ trace_rpm_usage_rcuidle(dev, rpmflags); + return 0; ++ } + } + + might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe); +@@ -1125,28 +1129,47 @@ int __pm_runtime_resume(struct device *dev, int rpmflags) + EXPORT_SYMBOL_GPL(__pm_runtime_resume); + + /** +- * pm_runtime_get_if_in_use - Conditionally bump up the device's usage counter. ++ * pm_runtime_get_if_active - Conditionally bump up the device's usage counter. + * @dev: Device to handle. + * + * Return -EINVAL if runtime PM is disabled for the device. + * +- * If that's not the case and if the device's runtime PM status is RPM_ACTIVE +- * and the runtime PM usage counter is nonzero, increment the counter and +- * return 1. Otherwise return 0 without changing the counter. ++ * Otherwise, if the device's runtime PM status is RPM_ACTIVE and either ++ * ign_usage_count is true or the device's usage_count is non-zero, increment ++ * the counter and return 1. Otherwise return 0 without changing the counter. ++ * ++ * If ign_usage_count is true, the function can be used to prevent suspending ++ * the device when its runtime PM status is RPM_ACTIVE. ++ * ++ * If ign_usage_count is false, the function can be used to prevent suspending ++ * the device when both its runtime PM status is RPM_ACTIVE and its usage_count ++ * is non-zero. ++ * ++ * The caller is resposible for putting the device's usage count when ther ++ * return value is greater than zero. + */ +-int pm_runtime_get_if_in_use(struct device *dev) ++int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count) + { + unsigned long flags; + int retval; + + spin_lock_irqsave(&dev->power.lock, flags); +- retval = dev->power.disable_depth > 0 ? -EINVAL : +- dev->power.runtime_status == RPM_ACTIVE +- && atomic_inc_not_zero(&dev->power.usage_count); ++ if (dev->power.disable_depth > 0) { ++ retval = -EINVAL; ++ } else if (dev->power.runtime_status != RPM_ACTIVE) { ++ retval = 0; ++ } else if (ign_usage_count) { ++ retval = 1; ++ atomic_inc(&dev->power.usage_count); ++ } else { ++ retval = atomic_inc_not_zero(&dev->power.usage_count); ++ } ++ trace_rpm_usage_rcuidle(dev, 0); + spin_unlock_irqrestore(&dev->power.lock, flags); ++ + return retval; + } +-EXPORT_SYMBOL_GPL(pm_runtime_get_if_in_use); ++EXPORT_SYMBOL_GPL(pm_runtime_get_if_active); + + /** + * __pm_runtime_set_status - Set runtime PM status of a device. +@@ -1476,6 +1499,8 @@ void pm_runtime_allow(struct device *dev) + dev->power.runtime_auto = true; + if (atomic_dec_and_test(&dev->power.usage_count)) + rpm_idle(dev, RPM_AUTO | RPM_ASYNC); ++ else ++ trace_rpm_usage_rcuidle(dev, RPM_AUTO | RPM_ASYNC); + + out: + spin_unlock_irq(&dev->power.lock); +@@ -1543,6 +1568,8 @@ static void update_autosuspend(struct device *dev, int old_delay, int old_use) + if (!old_use || old_delay >= 0) { + atomic_inc(&dev->power.usage_count); + rpm_resume(dev, 0); ++ } else { ++ trace_rpm_usage_rcuidle(dev, 0); + } + } + +diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c +index ac9b31c57967d..6d934c35a7700 100644 +--- a/drivers/base/regmap/regmap-i2c.c ++++ b/drivers/base/regmap/regmap-i2c.c +@@ -242,8 +242,8 @@ static int regmap_i2c_smbus_i2c_read(void *context, const void *reg, + static struct regmap_bus regmap_i2c_smbus_i2c_block = { + .write = regmap_i2c_smbus_i2c_write, + .read = regmap_i2c_smbus_i2c_read, +- .max_raw_read = I2C_SMBUS_BLOCK_MAX, +- .max_raw_write = I2C_SMBUS_BLOCK_MAX, ++ .max_raw_read = I2C_SMBUS_BLOCK_MAX - 1, ++ .max_raw_write = I2C_SMBUS_BLOCK_MAX - 1, + }; + + static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c, +diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c +index 44aeceaccfa48..e1a9838c96655 100644 +--- a/drivers/bus/ti-sysc.c ++++ b/drivers/bus/ti-sysc.c +@@ -1809,7 +1809,7 @@ static int sysc_reset(struct sysc *ddata) + + sysc_offset = ddata->offsets[SYSC_SYSCONFIG]; + +- if (ddata->legacy_mode || sysc_offset < 0 || ++ if (ddata->legacy_mode || + ddata->cap->regbits->srst_shift < 0 || + ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT) + return 0; +@@ -1819,9 +1819,13 @@ static int sysc_reset(struct sysc *ddata) + if (ddata->pre_reset_quirk) + ddata->pre_reset_quirk(ddata); + +- sysc_val = sysc_read_sysconfig(ddata); +- sysc_val |= sysc_mask; +- sysc_write(ddata, sysc_offset, sysc_val); ++ if (sysc_offset >= 0) { ++ sysc_val = sysc_read_sysconfig(ddata); ++ sysc_val |= sysc_mask; ++ sysc_write(ddata, sysc_offset, sysc_val); ++ /* Flush posted write */ ++ sysc_val = sysc_read_sysconfig(ddata); ++ } + + if (ddata->cfg.srst_udelay) + usleep_range(ddata->cfg.srst_udelay, +diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c +index 4fb4fd4b06bda..737aa70e2cb3d 100644 +--- a/drivers/clk/clk-devres.c ++++ b/drivers/clk/clk-devres.c +@@ -205,18 +205,19 @@ EXPORT_SYMBOL(devm_clk_put); + struct clk *devm_get_clk_from_child(struct device *dev, + struct device_node *np, const char *con_id) + { +- struct clk **ptr, *clk; ++ struct devm_clk_state *state; ++ struct clk *clk; + +- ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL); +- if (!ptr) ++ state = devres_alloc(devm_clk_release, sizeof(*state), GFP_KERNEL); ++ if (!state) + return ERR_PTR(-ENOMEM); + + clk = of_clk_get_by_name(np, con_id); + if (!IS_ERR(clk)) { +- *ptr = clk; +- devres_add(dev, ptr); ++ state->clk = clk; ++ devres_add(dev, state); + } else { +- devres_free(ptr); ++ devres_free(state); + } + + return clk; +diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c +index 6713cfb1995c6..7e7356970d5fc 100644 +--- a/drivers/dma-buf/sw_sync.c ++++ b/drivers/dma-buf/sw_sync.c +@@ -191,6 +191,7 @@ static const struct dma_fence_ops timeline_fence_ops = { + */ + static void sync_timeline_signal(struct sync_timeline *obj, unsigned int inc) + { ++ LIST_HEAD(signalled); + struct sync_pt *pt, *next; + + trace_sync_timeline(obj); +@@ -203,21 +204,20 @@ static void sync_timeline_signal(struct sync_timeline *obj, unsigned int inc) + if (!timeline_fence_signaled(&pt->base)) + break; + +- list_del_init(&pt->link); ++ dma_fence_get(&pt->base); ++ ++ list_move_tail(&pt->link, &signalled); + rb_erase(&pt->node, &obj->pt_tree); + +- /* +- * A signal callback may release the last reference to this +- * fence, causing it to be freed. That operation has to be +- * last to avoid a use after free inside this loop, and must +- * be after we remove the fence from the timeline in order to +- * prevent deadlocking on timeline->lock inside +- * timeline_fence_release(). +- */ + dma_fence_signal_locked(&pt->base); + } + + spin_unlock_irq(&obj->lock); ++ ++ list_for_each_entry_safe(pt, next, &signalled, link) { ++ list_del_init(&pt->link); ++ dma_fence_put(&pt->base); ++ } + } + + /** +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +index 7eeb98fe50ed7..0e478d4d830c9 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +@@ -1575,15 +1575,15 @@ static int amdgpu_cs_wait_all_fences(struct amdgpu_device *adev, + continue; + + r = dma_fence_wait_timeout(fence, true, timeout); ++ if (r > 0 && fence->error) ++ r = fence->error; ++ + dma_fence_put(fence); + if (r < 0) + return r; + + if (r == 0) + break; +- +- if (fence->error) +- return fence->error; + } + + memset(wait, 0, sizeof(*wait)); +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +index fa3acf60e7bd2..c4c99bc7f2890 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +@@ -2902,7 +2902,9 @@ static void dcn10_wait_for_mpcc_disconnect( + if (pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst]) { + struct hubp *hubp = get_hubp_by_inst(res_pool, mpcc_inst); + +- res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst); ++ if (pipe_ctx->stream_res.tg && ++ pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg)) ++ res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst); + pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false; + hubp->funcs->set_blank(hubp, true); + } +diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c +index 7b54606783821..ba64dad1d7c9e 100644 +--- a/drivers/gpu/drm/radeon/radeon_cs.c ++++ b/drivers/gpu/drm/radeon/radeon_cs.c +@@ -271,7 +271,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) + { + struct drm_radeon_cs *cs = data; + uint64_t *chunk_array_ptr; +- unsigned size, i; ++ u64 size; ++ unsigned i; + u32 ring = RADEON_CS_RING_GFX; + s32 priority = 0; + +diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h +index 479516bbb61bf..64842926aff64 100644 +--- a/drivers/hid/hid-ids.h ++++ b/drivers/hid/hid-ids.h +@@ -581,6 +581,7 @@ + #define USB_DEVICE_ID_UGCI_FIGHTING 0x0030 + + #define USB_VENDOR_ID_HP 0x03f0 ++#define USB_PRODUCT_ID_HP_ELITE_PRESENTER_MOUSE_464A 0x464a + #define USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A 0x0a4a + #define USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A 0x0b4a + #define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE 0x134a +diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c +index e5dcc47586ee4..83c3322fcf187 100644 +--- a/drivers/hid/hid-quirks.c ++++ b/drivers/hid/hid-quirks.c +@@ -96,6 +96,7 @@ static const struct hid_device_id hid_quirks[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096), HID_QUIRK_NO_INIT_REPORTS }, + { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A293), HID_QUIRK_ALWAYS_POLL }, + { HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A), HID_QUIRK_ALWAYS_POLL }, ++ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_ELITE_PRESENTER_MOUSE_464A), HID_QUIRK_MULTI_INPUT }, + { HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A), HID_QUIRK_ALWAYS_POLL }, + { HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL }, + { HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_094A), HID_QUIRK_ALWAYS_POLL }, +diff --git a/drivers/i2c/busses/i2c-bcm-iproc.c b/drivers/i2c/busses/i2c-bcm-iproc.c +index 70cd9fc7fb869..cae34c55ae08b 100644 +--- a/drivers/i2c/busses/i2c-bcm-iproc.c ++++ b/drivers/i2c/busses/i2c-bcm-iproc.c +@@ -240,13 +240,14 @@ static inline u32 iproc_i2c_rd_reg(struct bcm_iproc_i2c_dev *iproc_i2c, + u32 offset) + { + u32 val; ++ unsigned long flags; + + if (iproc_i2c->idm_base) { +- spin_lock(&iproc_i2c->idm_lock); ++ spin_lock_irqsave(&iproc_i2c->idm_lock, flags); + writel(iproc_i2c->ape_addr_mask, + iproc_i2c->idm_base + IDM_CTRL_DIRECT_OFFSET); + val = readl(iproc_i2c->base + offset); +- spin_unlock(&iproc_i2c->idm_lock); ++ spin_unlock_irqrestore(&iproc_i2c->idm_lock, flags); + } else { + val = readl(iproc_i2c->base + offset); + } +@@ -257,12 +258,14 @@ static inline u32 iproc_i2c_rd_reg(struct bcm_iproc_i2c_dev *iproc_i2c, + static inline void iproc_i2c_wr_reg(struct bcm_iproc_i2c_dev *iproc_i2c, + u32 offset, u32 val) + { ++ unsigned long flags; ++ + if (iproc_i2c->idm_base) { +- spin_lock(&iproc_i2c->idm_lock); ++ spin_lock_irqsave(&iproc_i2c->idm_lock, flags); + writel(iproc_i2c->ape_addr_mask, + iproc_i2c->idm_base + IDM_CTRL_DIRECT_OFFSET); + writel(val, iproc_i2c->base + offset); +- spin_unlock(&iproc_i2c->idm_lock); ++ spin_unlock_irqrestore(&iproc_i2c->idm_lock, flags); + } else { + writel(val, iproc_i2c->base + offset); + } +diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig +index 5bd51853b15ec..3c0da322ece74 100644 +--- a/drivers/iio/Kconfig ++++ b/drivers/iio/Kconfig +@@ -70,6 +70,7 @@ config IIO_TRIGGERED_EVENT + + source "drivers/iio/accel/Kconfig" + source "drivers/iio/adc/Kconfig" ++source "drivers/iio/addac/Kconfig" + source "drivers/iio/afe/Kconfig" + source "drivers/iio/amplifiers/Kconfig" + source "drivers/iio/chemical/Kconfig" +diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile +index bff682ad1cfbb..96fd43b2ef7c1 100644 +--- a/drivers/iio/Makefile ++++ b/drivers/iio/Makefile +@@ -15,6 +15,7 @@ obj-$(CONFIG_IIO_TRIGGERED_EVENT) += industrialio-triggered-event.o + + obj-y += accel/ + obj-y += adc/ ++obj-y += addac/ + obj-y += afe/ + obj-y += amplifiers/ + obj-y += buffer/ +diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig +index cb57880842991..b39d5ad157449 100644 +--- a/drivers/iio/adc/Kconfig ++++ b/drivers/iio/adc/Kconfig +@@ -840,22 +840,6 @@ config STMPE_ADC + Say yes here to build support for ST Microelectronics STMPE + built-in ADC block (stmpe811). + +-config STX104 +- tristate "Apex Embedded Systems STX104 driver" +- depends on PC104 && X86 +- select ISA_BUS_API +- select GPIOLIB +- help +- Say yes here to build support for the Apex Embedded Systems STX104 +- integrated analog PC/104 card. +- +- This driver supports the 16 channels of single-ended (8 channels of +- differential) analog inputs, 2 channels of analog output, 4 digital +- inputs, and 4 digital outputs provided by the STX104. +- +- The base port addresses for the devices may be configured via the base +- array module parameter. +- + config SUN4I_GPADC + tristate "Support for the Allwinner SoCs GPADC" + depends on IIO +diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile +index ef9cc485fb674..d0b11502102ed 100644 +--- a/drivers/iio/adc/Makefile ++++ b/drivers/iio/adc/Makefile +@@ -72,7 +72,6 @@ obj-$(CONFIG_RCAR_GYRO_ADC) += rcar-gyroadc.o + obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o + obj-$(CONFIG_SC27XX_ADC) += sc27xx_adc.o + obj-$(CONFIG_SPEAR_ADC) += spear_adc.o +-obj-$(CONFIG_STX104) += stx104.o + obj-$(CONFIG_SUN4I_GPADC) += sun4i-gpadc-iio.o + obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o + obj-$(CONFIG_STM32_ADC) += stm32-adc.o +diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c +deleted file mode 100644 +index f87bbc711ccc0..0000000000000 +--- a/drivers/iio/adc/stx104.c ++++ /dev/null +@@ -1,375 +0,0 @@ +-// SPDX-License-Identifier: GPL-2.0-only +-/* +- * IIO driver for the Apex Embedded Systems STX104 +- * Copyright (C) 2016 William Breathitt Gray +- */ +-#include <linux/bitops.h> +-#include <linux/device.h> +-#include <linux/errno.h> +-#include <linux/gpio/driver.h> +-#include <linux/iio/iio.h> +-#include <linux/iio/types.h> +-#include <linux/io.h> +-#include <linux/ioport.h> +-#include <linux/isa.h> +-#include <linux/kernel.h> +-#include <linux/module.h> +-#include <linux/moduleparam.h> +-#include <linux/spinlock.h> +- +-#define STX104_OUT_CHAN(chan) { \ +- .type = IIO_VOLTAGE, \ +- .channel = chan, \ +- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ +- .indexed = 1, \ +- .output = 1 \ +-} +-#define STX104_IN_CHAN(chan, diff) { \ +- .type = IIO_VOLTAGE, \ +- .channel = chan, \ +- .channel2 = chan, \ +- .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \ +- BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE), \ +- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ +- .indexed = 1, \ +- .differential = diff \ +-} +- +-#define STX104_NUM_OUT_CHAN 2 +- +-#define STX104_EXTENT 16 +- +-static unsigned int base[max_num_isa_dev(STX104_EXTENT)]; +-static unsigned int num_stx104; +-module_param_hw_array(base, uint, ioport, &num_stx104, 0); +-MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses"); +- +-/** +- * struct stx104_iio - IIO device private data structure +- * @chan_out_states: channels' output states +- * @base: base port address of the IIO device +- */ +-struct stx104_iio { +- unsigned int chan_out_states[STX104_NUM_OUT_CHAN]; +- unsigned int base; +-}; +- +-/** +- * struct stx104_gpio - GPIO device private data structure +- * @chip: instance of the gpio_chip +- * @lock: synchronization lock to prevent I/O race conditions +- * @base: base port address of the GPIO device +- * @out_state: output bits state +- */ +-struct stx104_gpio { +- struct gpio_chip chip; +- spinlock_t lock; +- unsigned int base; +- unsigned int out_state; +-}; +- +-static int stx104_read_raw(struct iio_dev *indio_dev, +- struct iio_chan_spec const *chan, int *val, int *val2, long mask) +-{ +- struct stx104_iio *const priv = iio_priv(indio_dev); +- unsigned int adc_config; +- int adbu; +- int gain; +- +- switch (mask) { +- case IIO_CHAN_INFO_HARDWAREGAIN: +- /* get gain configuration */ +- adc_config = inb(priv->base + 11); +- gain = adc_config & 0x3; +- +- *val = 1 << gain; +- return IIO_VAL_INT; +- case IIO_CHAN_INFO_RAW: +- if (chan->output) { +- *val = priv->chan_out_states[chan->channel]; +- return IIO_VAL_INT; +- } +- +- /* select ADC channel */ +- outb(chan->channel | (chan->channel << 4), priv->base + 2); +- +- /* trigger ADC sample capture and wait for completion */ +- outb(0, priv->base); +- while (inb(priv->base + 8) & BIT(7)); +- +- *val = inw(priv->base); +- return IIO_VAL_INT; +- case IIO_CHAN_INFO_OFFSET: +- /* get ADC bipolar/unipolar configuration */ +- adc_config = inb(priv->base + 11); +- adbu = !(adc_config & BIT(2)); +- +- *val = -32768 * adbu; +- return IIO_VAL_INT; +- case IIO_CHAN_INFO_SCALE: +- /* get ADC bipolar/unipolar and gain configuration */ +- adc_config = inb(priv->base + 11); +- adbu = !(adc_config & BIT(2)); +- gain = adc_config & 0x3; +- +- *val = 5; +- *val2 = 15 - adbu + gain; +- return IIO_VAL_FRACTIONAL_LOG2; +- } +- +- return -EINVAL; +-} +- +-static int stx104_write_raw(struct iio_dev *indio_dev, +- struct iio_chan_spec const *chan, int val, int val2, long mask) +-{ +- struct stx104_iio *const priv = iio_priv(indio_dev); +- +- switch (mask) { +- case IIO_CHAN_INFO_HARDWAREGAIN: +- /* Only four gain states (x1, x2, x4, x8) */ +- switch (val) { +- case 1: +- outb(0, priv->base + 11); +- break; +- case 2: +- outb(1, priv->base + 11); +- break; +- case 4: +- outb(2, priv->base + 11); +- break; +- case 8: +- outb(3, priv->base + 11); +- break; +- default: +- return -EINVAL; +- } +- +- return 0; +- case IIO_CHAN_INFO_RAW: +- if (chan->output) { +- /* DAC can only accept up to a 16-bit value */ +- if ((unsigned int)val > 65535) +- return -EINVAL; +- +- priv->chan_out_states[chan->channel] = val; +- outw(val, priv->base + 4 + 2 * chan->channel); +- +- return 0; +- } +- return -EINVAL; +- } +- +- return -EINVAL; +-} +- +-static const struct iio_info stx104_info = { +- .read_raw = stx104_read_raw, +- .write_raw = stx104_write_raw +-}; +- +-/* single-ended input channels configuration */ +-static const struct iio_chan_spec stx104_channels_sing[] = { +- STX104_OUT_CHAN(0), STX104_OUT_CHAN(1), +- STX104_IN_CHAN(0, 0), STX104_IN_CHAN(1, 0), STX104_IN_CHAN(2, 0), +- STX104_IN_CHAN(3, 0), STX104_IN_CHAN(4, 0), STX104_IN_CHAN(5, 0), +- STX104_IN_CHAN(6, 0), STX104_IN_CHAN(7, 0), STX104_IN_CHAN(8, 0), +- STX104_IN_CHAN(9, 0), STX104_IN_CHAN(10, 0), STX104_IN_CHAN(11, 0), +- STX104_IN_CHAN(12, 0), STX104_IN_CHAN(13, 0), STX104_IN_CHAN(14, 0), +- STX104_IN_CHAN(15, 0) +-}; +-/* differential input channels configuration */ +-static const struct iio_chan_spec stx104_channels_diff[] = { +- STX104_OUT_CHAN(0), STX104_OUT_CHAN(1), +- STX104_IN_CHAN(0, 1), STX104_IN_CHAN(1, 1), STX104_IN_CHAN(2, 1), +- STX104_IN_CHAN(3, 1), STX104_IN_CHAN(4, 1), STX104_IN_CHAN(5, 1), +- STX104_IN_CHAN(6, 1), STX104_IN_CHAN(7, 1) +-}; +- +-static int stx104_gpio_get_direction(struct gpio_chip *chip, +- unsigned int offset) +-{ +- /* GPIO 0-3 are input only, while the rest are output only */ +- if (offset < 4) +- return 1; +- +- return 0; +-} +- +-static int stx104_gpio_direction_input(struct gpio_chip *chip, +- unsigned int offset) +-{ +- if (offset >= 4) +- return -EINVAL; +- +- return 0; +-} +- +-static int stx104_gpio_direction_output(struct gpio_chip *chip, +- unsigned int offset, int value) +-{ +- if (offset < 4) +- return -EINVAL; +- +- chip->set(chip, offset, value); +- return 0; +-} +- +-static int stx104_gpio_get(struct gpio_chip *chip, unsigned int offset) +-{ +- struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); +- +- if (offset >= 4) +- return -EINVAL; +- +- return !!(inb(stx104gpio->base) & BIT(offset)); +-} +- +-static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, +- unsigned long *bits) +-{ +- struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); +- +- *bits = inb(stx104gpio->base); +- +- return 0; +-} +- +-static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset, +- int value) +-{ +- struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); +- const unsigned int mask = BIT(offset) >> 4; +- unsigned long flags; +- +- if (offset < 4) +- return; +- +- spin_lock_irqsave(&stx104gpio->lock, flags); +- +- if (value) +- stx104gpio->out_state |= mask; +- else +- stx104gpio->out_state &= ~mask; +- +- outb(stx104gpio->out_state, stx104gpio->base); +- +- spin_unlock_irqrestore(&stx104gpio->lock, flags); +-} +- +-#define STX104_NGPIO 8 +-static const char *stx104_names[STX104_NGPIO] = { +- "DIN0", "DIN1", "DIN2", "DIN3", "DOUT0", "DOUT1", "DOUT2", "DOUT3" +-}; +- +-static void stx104_gpio_set_multiple(struct gpio_chip *chip, +- unsigned long *mask, unsigned long *bits) +-{ +- struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); +- unsigned long flags; +- +- /* verify masked GPIO are output */ +- if (!(*mask & 0xF0)) +- return; +- +- *mask >>= 4; +- *bits >>= 4; +- +- spin_lock_irqsave(&stx104gpio->lock, flags); +- +- stx104gpio->out_state &= ~*mask; +- stx104gpio->out_state |= *mask & *bits; +- outb(stx104gpio->out_state, stx104gpio->base); +- +- spin_unlock_irqrestore(&stx104gpio->lock, flags); +-} +- +-static int stx104_probe(struct device *dev, unsigned int id) +-{ +- struct iio_dev *indio_dev; +- struct stx104_iio *priv; +- struct stx104_gpio *stx104gpio; +- int err; +- +- indio_dev = devm_iio_device_alloc(dev, sizeof(*priv)); +- if (!indio_dev) +- return -ENOMEM; +- +- stx104gpio = devm_kzalloc(dev, sizeof(*stx104gpio), GFP_KERNEL); +- if (!stx104gpio) +- return -ENOMEM; +- +- if (!devm_request_region(dev, base[id], STX104_EXTENT, +- dev_name(dev))) { +- dev_err(dev, "Unable to lock port addresses (0x%X-0x%X)\n", +- base[id], base[id] + STX104_EXTENT); +- return -EBUSY; +- } +- +- indio_dev->info = &stx104_info; +- indio_dev->modes = INDIO_DIRECT_MODE; +- +- /* determine if differential inputs */ +- if (inb(base[id] + 8) & BIT(5)) { +- indio_dev->num_channels = ARRAY_SIZE(stx104_channels_diff); +- indio_dev->channels = stx104_channels_diff; +- } else { +- indio_dev->num_channels = ARRAY_SIZE(stx104_channels_sing); +- indio_dev->channels = stx104_channels_sing; +- } +- +- indio_dev->name = dev_name(dev); +- indio_dev->dev.parent = dev; +- +- priv = iio_priv(indio_dev); +- priv->base = base[id]; +- +- /* configure device for software trigger operation */ +- outb(0, base[id] + 9); +- +- /* initialize gain setting to x1 */ +- outb(0, base[id] + 11); +- +- /* initialize DAC output to 0V */ +- outw(0, base[id] + 4); +- outw(0, base[id] + 6); +- +- stx104gpio->chip.label = dev_name(dev); +- stx104gpio->chip.parent = dev; +- stx104gpio->chip.owner = THIS_MODULE; +- stx104gpio->chip.base = -1; +- stx104gpio->chip.ngpio = STX104_NGPIO; +- stx104gpio->chip.names = stx104_names; +- stx104gpio->chip.get_direction = stx104_gpio_get_direction; +- stx104gpio->chip.direction_input = stx104_gpio_direction_input; +- stx104gpio->chip.direction_output = stx104_gpio_direction_output; +- stx104gpio->chip.get = stx104_gpio_get; +- stx104gpio->chip.get_multiple = stx104_gpio_get_multiple; +- stx104gpio->chip.set = stx104_gpio_set; +- stx104gpio->chip.set_multiple = stx104_gpio_set_multiple; +- stx104gpio->base = base[id] + 3; +- stx104gpio->out_state = 0x0; +- +- spin_lock_init(&stx104gpio->lock); +- +- err = devm_gpiochip_add_data(dev, &stx104gpio->chip, stx104gpio); +- if (err) { +- dev_err(dev, "GPIO registering failed (%d)\n", err); +- return err; +- } +- +- return devm_iio_device_register(dev, indio_dev); +-} +- +-static struct isa_driver stx104_driver = { +- .probe = stx104_probe, +- .driver = { +- .name = "stx104" +- }, +-}; +- +-module_isa_driver(stx104_driver, num_stx104); +- +-MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); +-MODULE_DESCRIPTION("Apex Embedded Systems STX104 IIO driver"); +-MODULE_LICENSE("GPL v2"); +diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig +new file mode 100644 +index 0000000000000..1f598670e84fb +--- /dev/null ++++ b/drivers/iio/addac/Kconfig +@@ -0,0 +1,24 @@ ++# ++# ADC DAC drivers ++# ++# When adding new entries keep the list in alphabetical order ++ ++menu "Analog to digital and digital to analog converters" ++ ++config STX104 ++ tristate "Apex Embedded Systems STX104 driver" ++ depends on PC104 && X86 ++ select ISA_BUS_API ++ select GPIOLIB ++ help ++ Say yes here to build support for the Apex Embedded Systems STX104 ++ integrated analog PC/104 card. ++ ++ This driver supports the 16 channels of single-ended (8 channels of ++ differential) analog inputs, 2 channels of analog output, 4 digital ++ inputs, and 4 digital outputs provided by the STX104. ++ ++ The base port addresses for the devices may be configured via the base ++ array module parameter. ++ ++endmenu +diff --git a/drivers/iio/addac/Makefile b/drivers/iio/addac/Makefile +new file mode 100644 +index 0000000000000..8629145233544 +--- /dev/null ++++ b/drivers/iio/addac/Makefile +@@ -0,0 +1,7 @@ ++# SPDX-License-Identifier: GPL-2.0 ++# ++# Makefile for industrial I/O ADDAC drivers ++# ++ ++# When adding new entries keep the list in alphabetical order ++obj-$(CONFIG_STX104) += stx104.o +diff --git a/drivers/iio/addac/stx104.c b/drivers/iio/addac/stx104.c +new file mode 100644 +index 0000000000000..8237ae4263cbe +--- /dev/null ++++ b/drivers/iio/addac/stx104.c +@@ -0,0 +1,415 @@ ++// SPDX-License-Identifier: GPL-2.0-only ++/* ++ * IIO driver for the Apex Embedded Systems STX104 ++ * Copyright (C) 2016 William Breathitt Gray ++ */ ++#include <linux/bitops.h> ++#include <linux/device.h> ++#include <linux/errno.h> ++#include <linux/gpio/driver.h> ++#include <linux/iio/iio.h> ++#include <linux/iio/types.h> ++#include <linux/io.h> ++#include <linux/ioport.h> ++#include <linux/isa.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/mutex.h> ++#include <linux/spinlock.h> ++#include <linux/types.h> ++ ++#define STX104_OUT_CHAN(chan) { \ ++ .type = IIO_VOLTAGE, \ ++ .channel = chan, \ ++ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ ++ .indexed = 1, \ ++ .output = 1 \ ++} ++#define STX104_IN_CHAN(chan, diff) { \ ++ .type = IIO_VOLTAGE, \ ++ .channel = chan, \ ++ .channel2 = chan, \ ++ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \ ++ BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE), \ ++ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ ++ .indexed = 1, \ ++ .differential = diff \ ++} ++ ++#define STX104_NUM_OUT_CHAN 2 ++ ++#define STX104_EXTENT 16 ++ ++static unsigned int base[max_num_isa_dev(STX104_EXTENT)]; ++static unsigned int num_stx104; ++module_param_hw_array(base, uint, ioport, &num_stx104, 0); ++MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses"); ++ ++/** ++ * struct stx104_reg - device register structure ++ * @ssr_ad: Software Strobe Register and ADC Data ++ * @achan: ADC Channel ++ * @dio: Digital I/O ++ * @dac: DAC Channels ++ * @cir_asr: Clear Interrupts and ADC Status ++ * @acr: ADC Control ++ * @pccr_fsh: Pacer Clock Control and FIFO Status MSB ++ * @acfg: ADC Configuration ++ */ ++struct stx104_reg { ++ u16 ssr_ad; ++ u8 achan; ++ u8 dio; ++ u16 dac[2]; ++ u8 cir_asr; ++ u8 acr; ++ u8 pccr_fsh; ++ u8 acfg; ++}; ++ ++/** ++ * struct stx104_iio - IIO device private data structure ++ * @lock: synchronization lock to prevent I/O race conditions ++ * @chan_out_states: channels' output states ++ * @reg: I/O address offset for the device registers ++ */ ++struct stx104_iio { ++ struct mutex lock; ++ unsigned int chan_out_states[STX104_NUM_OUT_CHAN]; ++ struct stx104_reg __iomem *reg; ++}; ++ ++/** ++ * struct stx104_gpio - GPIO device private data structure ++ * @chip: instance of the gpio_chip ++ * @lock: synchronization lock to prevent I/O race conditions ++ * @base: base port address of the GPIO device ++ * @out_state: output bits state ++ */ ++struct stx104_gpio { ++ struct gpio_chip chip; ++ spinlock_t lock; ++ u8 __iomem *base; ++ unsigned int out_state; ++}; ++ ++static int stx104_read_raw(struct iio_dev *indio_dev, ++ struct iio_chan_spec const *chan, int *val, int *val2, long mask) ++{ ++ struct stx104_iio *const priv = iio_priv(indio_dev); ++ struct stx104_reg __iomem *const reg = priv->reg; ++ unsigned int adc_config; ++ int adbu; ++ int gain; ++ ++ switch (mask) { ++ case IIO_CHAN_INFO_HARDWAREGAIN: ++ /* get gain configuration */ ++ adc_config = ioread8(®->acfg); ++ gain = adc_config & 0x3; ++ ++ *val = 1 << gain; ++ return IIO_VAL_INT; ++ case IIO_CHAN_INFO_RAW: ++ if (chan->output) { ++ *val = priv->chan_out_states[chan->channel]; ++ return IIO_VAL_INT; ++ } ++ ++ mutex_lock(&priv->lock); ++ ++ /* select ADC channel */ ++ iowrite8(chan->channel | (chan->channel << 4), ®->achan); ++ ++ /* trigger ADC sample capture by writing to the 8-bit ++ * Software Strobe Register and wait for completion ++ */ ++ iowrite8(0, ®->ssr_ad); ++ while (ioread8(®->cir_asr) & BIT(7)); ++ ++ *val = ioread16(®->ssr_ad); ++ ++ mutex_unlock(&priv->lock); ++ return IIO_VAL_INT; ++ case IIO_CHAN_INFO_OFFSET: ++ /* get ADC bipolar/unipolar configuration */ ++ adc_config = ioread8(®->acfg); ++ adbu = !(adc_config & BIT(2)); ++ ++ *val = -32768 * adbu; ++ return IIO_VAL_INT; ++ case IIO_CHAN_INFO_SCALE: ++ /* get ADC bipolar/unipolar and gain configuration */ ++ adc_config = ioread8(®->acfg); ++ adbu = !(adc_config & BIT(2)); ++ gain = adc_config & 0x3; ++ ++ *val = 5; ++ *val2 = 15 - adbu + gain; ++ return IIO_VAL_FRACTIONAL_LOG2; ++ } ++ ++ return -EINVAL; ++} ++ ++static int stx104_write_raw(struct iio_dev *indio_dev, ++ struct iio_chan_spec const *chan, int val, int val2, long mask) ++{ ++ struct stx104_iio *const priv = iio_priv(indio_dev); ++ ++ switch (mask) { ++ case IIO_CHAN_INFO_HARDWAREGAIN: ++ /* Only four gain states (x1, x2, x4, x8) */ ++ switch (val) { ++ case 1: ++ iowrite8(0, &priv->reg->acfg); ++ break; ++ case 2: ++ iowrite8(1, &priv->reg->acfg); ++ break; ++ case 4: ++ iowrite8(2, &priv->reg->acfg); ++ break; ++ case 8: ++ iowrite8(3, &priv->reg->acfg); ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ return 0; ++ case IIO_CHAN_INFO_RAW: ++ if (chan->output) { ++ /* DAC can only accept up to a 16-bit value */ ++ if ((unsigned int)val > 65535) ++ return -EINVAL; ++ ++ mutex_lock(&priv->lock); ++ ++ priv->chan_out_states[chan->channel] = val; ++ iowrite16(val, &priv->reg->dac[chan->channel]); ++ ++ mutex_unlock(&priv->lock); ++ return 0; ++ } ++ return -EINVAL; ++ } ++ ++ return -EINVAL; ++} ++ ++static const struct iio_info stx104_info = { ++ .read_raw = stx104_read_raw, ++ .write_raw = stx104_write_raw ++}; ++ ++/* single-ended input channels configuration */ ++static const struct iio_chan_spec stx104_channels_sing[] = { ++ STX104_OUT_CHAN(0), STX104_OUT_CHAN(1), ++ STX104_IN_CHAN(0, 0), STX104_IN_CHAN(1, 0), STX104_IN_CHAN(2, 0), ++ STX104_IN_CHAN(3, 0), STX104_IN_CHAN(4, 0), STX104_IN_CHAN(5, 0), ++ STX104_IN_CHAN(6, 0), STX104_IN_CHAN(7, 0), STX104_IN_CHAN(8, 0), ++ STX104_IN_CHAN(9, 0), STX104_IN_CHAN(10, 0), STX104_IN_CHAN(11, 0), ++ STX104_IN_CHAN(12, 0), STX104_IN_CHAN(13, 0), STX104_IN_CHAN(14, 0), ++ STX104_IN_CHAN(15, 0) ++}; ++/* differential input channels configuration */ ++static const struct iio_chan_spec stx104_channels_diff[] = { ++ STX104_OUT_CHAN(0), STX104_OUT_CHAN(1), ++ STX104_IN_CHAN(0, 1), STX104_IN_CHAN(1, 1), STX104_IN_CHAN(2, 1), ++ STX104_IN_CHAN(3, 1), STX104_IN_CHAN(4, 1), STX104_IN_CHAN(5, 1), ++ STX104_IN_CHAN(6, 1), STX104_IN_CHAN(7, 1) ++}; ++ ++static int stx104_gpio_get_direction(struct gpio_chip *chip, ++ unsigned int offset) ++{ ++ /* GPIO 0-3 are input only, while the rest are output only */ ++ if (offset < 4) ++ return 1; ++ ++ return 0; ++} ++ ++static int stx104_gpio_direction_input(struct gpio_chip *chip, ++ unsigned int offset) ++{ ++ if (offset >= 4) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static int stx104_gpio_direction_output(struct gpio_chip *chip, ++ unsigned int offset, int value) ++{ ++ if (offset < 4) ++ return -EINVAL; ++ ++ chip->set(chip, offset, value); ++ return 0; ++} ++ ++static int stx104_gpio_get(struct gpio_chip *chip, unsigned int offset) ++{ ++ struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); ++ ++ if (offset >= 4) ++ return -EINVAL; ++ ++ return !!(ioread8(stx104gpio->base) & BIT(offset)); ++} ++ ++static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, ++ unsigned long *bits) ++{ ++ struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); ++ ++ *bits = ioread8(stx104gpio->base); ++ ++ return 0; ++} ++ ++static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset, ++ int value) ++{ ++ struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); ++ const unsigned int mask = BIT(offset) >> 4; ++ unsigned long flags; ++ ++ if (offset < 4) ++ return; ++ ++ spin_lock_irqsave(&stx104gpio->lock, flags); ++ ++ if (value) ++ stx104gpio->out_state |= mask; ++ else ++ stx104gpio->out_state &= ~mask; ++ ++ iowrite8(stx104gpio->out_state, stx104gpio->base); ++ ++ spin_unlock_irqrestore(&stx104gpio->lock, flags); ++} ++ ++#define STX104_NGPIO 8 ++static const char *stx104_names[STX104_NGPIO] = { ++ "DIN0", "DIN1", "DIN2", "DIN3", "DOUT0", "DOUT1", "DOUT2", "DOUT3" ++}; ++ ++static void stx104_gpio_set_multiple(struct gpio_chip *chip, ++ unsigned long *mask, unsigned long *bits) ++{ ++ struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip); ++ unsigned long flags; ++ ++ /* verify masked GPIO are output */ ++ if (!(*mask & 0xF0)) ++ return; ++ ++ *mask >>= 4; ++ *bits >>= 4; ++ ++ spin_lock_irqsave(&stx104gpio->lock, flags); ++ ++ stx104gpio->out_state &= ~*mask; ++ stx104gpio->out_state |= *mask & *bits; ++ iowrite8(stx104gpio->out_state, stx104gpio->base); ++ ++ spin_unlock_irqrestore(&stx104gpio->lock, flags); ++} ++ ++static int stx104_probe(struct device *dev, unsigned int id) ++{ ++ struct iio_dev *indio_dev; ++ struct stx104_iio *priv; ++ struct stx104_gpio *stx104gpio; ++ int err; ++ ++ indio_dev = devm_iio_device_alloc(dev, sizeof(*priv)); ++ if (!indio_dev) ++ return -ENOMEM; ++ ++ stx104gpio = devm_kzalloc(dev, sizeof(*stx104gpio), GFP_KERNEL); ++ if (!stx104gpio) ++ return -ENOMEM; ++ ++ if (!devm_request_region(dev, base[id], STX104_EXTENT, ++ dev_name(dev))) { ++ dev_err(dev, "Unable to lock port addresses (0x%X-0x%X)\n", ++ base[id], base[id] + STX104_EXTENT); ++ return -EBUSY; ++ } ++ ++ priv = iio_priv(indio_dev); ++ priv->reg = devm_ioport_map(dev, base[id], STX104_EXTENT); ++ if (!priv->reg) ++ return -ENOMEM; ++ ++ indio_dev->info = &stx104_info; ++ indio_dev->modes = INDIO_DIRECT_MODE; ++ ++ /* determine if differential inputs */ ++ if (ioread8(&priv->reg->cir_asr) & BIT(5)) { ++ indio_dev->num_channels = ARRAY_SIZE(stx104_channels_diff); ++ indio_dev->channels = stx104_channels_diff; ++ } else { ++ indio_dev->num_channels = ARRAY_SIZE(stx104_channels_sing); ++ indio_dev->channels = stx104_channels_sing; ++ } ++ ++ indio_dev->name = dev_name(dev); ++ indio_dev->dev.parent = dev; ++ ++ mutex_init(&priv->lock); ++ ++ /* configure device for software trigger operation */ ++ iowrite8(0, &priv->reg->acr); ++ ++ /* initialize gain setting to x1 */ ++ iowrite8(0, &priv->reg->acfg); ++ ++ /* initialize DAC output to 0V */ ++ iowrite16(0, &priv->reg->dac[0]); ++ iowrite16(0, &priv->reg->dac[1]); ++ ++ stx104gpio->chip.label = dev_name(dev); ++ stx104gpio->chip.parent = dev; ++ stx104gpio->chip.owner = THIS_MODULE; ++ stx104gpio->chip.base = -1; ++ stx104gpio->chip.ngpio = STX104_NGPIO; ++ stx104gpio->chip.names = stx104_names; ++ stx104gpio->chip.get_direction = stx104_gpio_get_direction; ++ stx104gpio->chip.direction_input = stx104_gpio_direction_input; ++ stx104gpio->chip.direction_output = stx104_gpio_direction_output; ++ stx104gpio->chip.get = stx104_gpio_get; ++ stx104gpio->chip.get_multiple = stx104_gpio_get_multiple; ++ stx104gpio->chip.set = stx104_gpio_set; ++ stx104gpio->chip.set_multiple = stx104_gpio_set_multiple; ++ stx104gpio->base = &priv->reg->dio; ++ stx104gpio->out_state = 0x0; ++ ++ spin_lock_init(&stx104gpio->lock); ++ ++ err = devm_gpiochip_add_data(dev, &stx104gpio->chip, stx104gpio); ++ if (err) { ++ dev_err(dev, "GPIO registering failed (%d)\n", err); ++ return err; ++ } ++ ++ return devm_iio_device_register(dev, indio_dev); ++} ++ ++static struct isa_driver stx104_driver = { ++ .probe = stx104_probe, ++ .driver = { ++ .name = "stx104" ++ }, ++}; ++ ++module_isa_driver(stx104_driver, num_stx104); ++ ++MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); ++MODULE_DESCRIPTION("Apex Embedded Systems STX104 IIO driver"); ++MODULE_LICENSE("GPL v2"); +diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c +index e63c48a1602fd..be3fa1ac4261c 100644 +--- a/drivers/interconnect/core.c ++++ b/drivers/interconnect/core.c +@@ -19,39 +19,13 @@ + #include <linux/of.h> + #include <linux/overflow.h> + ++#include "internal.h" ++ + static DEFINE_IDR(icc_idr); + static LIST_HEAD(icc_providers); + static DEFINE_MUTEX(icc_lock); + static struct dentry *icc_debugfs_dir; + +-/** +- * struct icc_req - constraints that are attached to each node +- * @req_node: entry in list of requests for the particular @node +- * @node: the interconnect node to which this constraint applies +- * @dev: reference to the device that sets the constraints +- * @tag: path tag (optional) +- * @avg_bw: an integer describing the average bandwidth in kBps +- * @peak_bw: an integer describing the peak bandwidth in kBps +- */ +-struct icc_req { +- struct hlist_node req_node; +- struct icc_node *node; +- struct device *dev; +- u32 tag; +- u32 avg_bw; +- u32 peak_bw; +-}; +- +-/** +- * struct icc_path - interconnect path structure +- * @num_nodes: number of hops (nodes) +- * @reqs: array of the requests applicable to this path of nodes +- */ +-struct icc_path { +- size_t num_nodes; +- struct icc_req reqs[]; +-}; +- + static void icc_summary_show_one(struct seq_file *s, struct icc_node *n) + { + if (!n) +@@ -117,6 +91,7 @@ static struct icc_path *path_init(struct device *dev, struct icc_node *dst, + hlist_add_head(&path->reqs[i].req_node, &node->req_list); + path->reqs[i].node = node; + path->reqs[i].dev = dev; ++ path->reqs[i].enabled = true; + /* reference to previous node was saved during path traversal */ + node = node->reverse; + } +@@ -201,6 +176,7 @@ static int aggregate_requests(struct icc_node *node) + { + struct icc_provider *p = node->provider; + struct icc_req *r; ++ u32 avg_bw, peak_bw; + + node->avg_bw = 0; + node->peak_bw = 0; +@@ -208,9 +184,17 @@ static int aggregate_requests(struct icc_node *node) + if (p->pre_aggregate) + p->pre_aggregate(node); + +- hlist_for_each_entry(r, &node->req_list, req_node) +- p->aggregate(node, r->tag, r->avg_bw, r->peak_bw, ++ hlist_for_each_entry(r, &node->req_list, req_node) { ++ if (r->enabled) { ++ avg_bw = r->avg_bw; ++ peak_bw = r->peak_bw; ++ } else { ++ avg_bw = 0; ++ peak_bw = 0; ++ } ++ p->aggregate(node, r->tag, avg_bw, peak_bw, + &node->avg_bw, &node->peak_bw); ++ } + + return 0; + } +@@ -475,6 +459,39 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) + } + EXPORT_SYMBOL_GPL(icc_set_bw); + ++static int __icc_enable(struct icc_path *path, bool enable) ++{ ++ int i; ++ ++ if (!path) ++ return 0; ++ ++ if (WARN_ON(IS_ERR(path) || !path->num_nodes)) ++ return -EINVAL; ++ ++ mutex_lock(&icc_lock); ++ ++ for (i = 0; i < path->num_nodes; i++) ++ path->reqs[i].enabled = enable; ++ ++ mutex_unlock(&icc_lock); ++ ++ return icc_set_bw(path, path->reqs[0].avg_bw, ++ path->reqs[0].peak_bw); ++} ++ ++int icc_enable(struct icc_path *path) ++{ ++ return __icc_enable(path, true); ++} ++EXPORT_SYMBOL_GPL(icc_enable); ++ ++int icc_disable(struct icc_path *path) ++{ ++ return __icc_enable(path, false); ++} ++EXPORT_SYMBOL_GPL(icc_disable); ++ + /** + * icc_get() - return a handle for path between two endpoints + * @dev: the device requesting the path +diff --git a/drivers/interconnect/internal.h b/drivers/interconnect/internal.h +new file mode 100644 +index 0000000000000..5c923c444f444 +--- /dev/null ++++ b/drivers/interconnect/internal.h +@@ -0,0 +1,42 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++/* ++ * Interconnect framework internal structs ++ * ++ * Copyright (c) 2019, Linaro Ltd. ++ * Author: Georgi Djakov <georgi.djakov@linaro.org> ++ */ ++ ++#ifndef __DRIVERS_INTERCONNECT_INTERNAL_H ++#define __DRIVERS_INTERCONNECT_INTERNAL_H ++ ++/** ++ * struct icc_req - constraints that are attached to each node ++ * @req_node: entry in list of requests for the particular @node ++ * @node: the interconnect node to which this constraint applies ++ * @dev: reference to the device that sets the constraints ++ * @enabled: indicates whether the path with this request is enabled ++ * @tag: path tag (optional) ++ * @avg_bw: an integer describing the average bandwidth in kBps ++ * @peak_bw: an integer describing the peak bandwidth in kBps ++ */ ++struct icc_req { ++ struct hlist_node req_node; ++ struct icc_node *node; ++ struct device *dev; ++ bool enabled; ++ u32 tag; ++ u32 avg_bw; ++ u32 peak_bw; ++}; ++ ++/** ++ * struct icc_path - interconnect path structure ++ * @num_nodes: number of hops (nodes) ++ * @reqs: array of the requests applicable to this path of nodes ++ */ ++struct icc_path { ++ size_t num_nodes; ++ struct icc_req reqs[]; ++}; ++ ++#endif +diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h +index 76e9d3e2f9f20..15eef44efd030 100644 +--- a/drivers/iommu/amd_iommu_types.h ++++ b/drivers/iommu/amd_iommu_types.h +@@ -886,8 +886,8 @@ struct amd_ir_data { + */ + struct irq_cfg *cfg; + int ga_vector; +- int ga_root_ptr; +- int ga_tag; ++ u64 ga_root_ptr; ++ u32 ga_tag; + }; + + struct amd_irte_ops { +diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c +index f3985469c2211..caebafed49bb4 100644 +--- a/drivers/irqchip/irq-mips-gic.c ++++ b/drivers/irqchip/irq-mips-gic.c +@@ -48,7 +48,7 @@ void __iomem *mips_gic_base; + + DEFINE_PER_CPU_READ_MOSTLY(unsigned long[GIC_MAX_LONGS], pcpu_masks); + +-static DEFINE_SPINLOCK(gic_lock); ++static DEFINE_RAW_SPINLOCK(gic_lock); + static struct irq_domain *gic_irq_domain; + static struct irq_domain *gic_ipi_domain; + static int gic_shared_intrs; +@@ -207,7 +207,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type) + + irq = GIC_HWIRQ_TO_SHARED(d->hwirq); + +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + switch (type & IRQ_TYPE_SENSE_MASK) { + case IRQ_TYPE_EDGE_FALLING: + pol = GIC_POL_FALLING_EDGE; +@@ -247,7 +247,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type) + else + irq_set_chip_handler_name_locked(d, &gic_level_irq_controller, + handle_level_irq, NULL); +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + + return 0; + } +@@ -265,7 +265,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask, + return -EINVAL; + + /* Assumption : cpumask refers to a single CPU */ +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + + /* Re-route this IRQ */ + write_gic_map_vp(irq, BIT(mips_cm_vp_id(cpu))); +@@ -276,7 +276,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask, + set_bit(irq, per_cpu_ptr(pcpu_masks, cpu)); + + irq_data_update_effective_affinity(d, cpumask_of(cpu)); +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + + return IRQ_SET_MASK_OK; + } +@@ -354,12 +354,12 @@ static void gic_mask_local_irq_all_vpes(struct irq_data *d) + cd = irq_data_get_irq_chip_data(d); + cd->mask = false; + +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + for_each_online_cpu(cpu) { + write_gic_vl_other(mips_cm_vp_id(cpu)); + write_gic_vo_rmask(BIT(intr)); + } +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + } + + static void gic_unmask_local_irq_all_vpes(struct irq_data *d) +@@ -372,32 +372,45 @@ static void gic_unmask_local_irq_all_vpes(struct irq_data *d) + cd = irq_data_get_irq_chip_data(d); + cd->mask = true; + +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + for_each_online_cpu(cpu) { + write_gic_vl_other(mips_cm_vp_id(cpu)); + write_gic_vo_smask(BIT(intr)); + } +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + } + +-static void gic_all_vpes_irq_cpu_online(struct irq_data *d) ++static void gic_all_vpes_irq_cpu_online(void) + { +- struct gic_all_vpes_chip_data *cd; +- unsigned int intr; ++ static const unsigned int local_intrs[] = { ++ GIC_LOCAL_INT_TIMER, ++ GIC_LOCAL_INT_PERFCTR, ++ GIC_LOCAL_INT_FDC, ++ }; ++ unsigned long flags; ++ int i; + +- intr = GIC_HWIRQ_TO_LOCAL(d->hwirq); +- cd = irq_data_get_irq_chip_data(d); ++ raw_spin_lock_irqsave(&gic_lock, flags); + +- write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map); +- if (cd->mask) +- write_gic_vl_smask(BIT(intr)); ++ for (i = 0; i < ARRAY_SIZE(local_intrs); i++) { ++ unsigned int intr = local_intrs[i]; ++ struct gic_all_vpes_chip_data *cd; ++ ++ if (!gic_local_irq_is_routable(intr)) ++ continue; ++ cd = &gic_all_vpes_chip_data[intr]; ++ write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map); ++ if (cd->mask) ++ write_gic_vl_smask(BIT(intr)); ++ } ++ ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + } + + static struct irq_chip gic_all_vpes_local_irq_controller = { + .name = "MIPS GIC Local", + .irq_mask = gic_mask_local_irq_all_vpes, + .irq_unmask = gic_unmask_local_irq_all_vpes, +- .irq_cpu_online = gic_all_vpes_irq_cpu_online, + }; + + static void __gic_irq_dispatch(void) +@@ -421,11 +434,11 @@ static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq, + + data = irq_get_irq_data(virq); + +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + write_gic_map_pin(intr, GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin); + write_gic_map_vp(intr, BIT(mips_cm_vp_id(cpu))); + irq_data_update_effective_affinity(data, cpumask_of(cpu)); +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + + return 0; + } +@@ -476,6 +489,10 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq, + intr = GIC_HWIRQ_TO_LOCAL(hwirq); + map = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin; + ++ /* ++ * If adding support for more per-cpu interrupts, keep the the ++ * array in gic_all_vpes_irq_cpu_online() in sync. ++ */ + switch (intr) { + case GIC_LOCAL_INT_TIMER: + /* CONFIG_MIPS_CMP workaround (see __gic_init) */ +@@ -514,12 +531,12 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq, + if (!gic_local_irq_is_routable(intr)) + return -EPERM; + +- spin_lock_irqsave(&gic_lock, flags); ++ raw_spin_lock_irqsave(&gic_lock, flags); + for_each_online_cpu(cpu) { + write_gic_vl_other(mips_cm_vp_id(cpu)); + write_gic_vo_map(mips_gic_vx_map_reg(intr), map); + } +- spin_unlock_irqrestore(&gic_lock, flags); ++ raw_spin_unlock_irqrestore(&gic_lock, flags); + + return 0; + } +@@ -662,8 +679,8 @@ static int gic_cpu_startup(unsigned int cpu) + /* Clear all local IRQ masks (ie. disable all local interrupts) */ + write_gic_vl_rmask(~0); + +- /* Invoke irq_cpu_online callbacks to enable desired interrupts */ +- irq_cpu_online(); ++ /* Enable desired interrupts */ ++ gic_all_vpes_irq_cpu_online(); + + return 0; + } +diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c +index d5e774d830215..f4d670ec30bcb 100644 +--- a/drivers/leds/trigger/ledtrig-netdev.c ++++ b/drivers/leds/trigger/ledtrig-netdev.c +@@ -318,6 +318,9 @@ static int netdev_trig_notify(struct notifier_block *nb, + clear_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode); + switch (evt) { + case NETDEV_CHANGENAME: ++ if (netif_carrier_ok(dev)) ++ set_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode); ++ fallthrough; + case NETDEV_REGISTER: + if (trigger_data->net_dev) + dev_put(trigger_data->net_dev); +diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c +index d7911c623edde..81157801a3dc6 100644 +--- a/drivers/md/dm-integrity.c ++++ b/drivers/md/dm-integrity.c +@@ -31,11 +31,11 @@ + #define DEFAULT_BUFFER_SECTORS 128 + #define DEFAULT_JOURNAL_WATERMARK 50 + #define DEFAULT_SYNC_MSEC 10000 +-#define DEFAULT_MAX_JOURNAL_SECTORS 131072 ++#define DEFAULT_MAX_JOURNAL_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 131072 : 8192) + #define MIN_LOG2_INTERLEAVE_SECTORS 3 + #define MAX_LOG2_INTERLEAVE_SECTORS 31 + #define METADATA_WORKQUEUE_MAX_ACTIVE 16 +-#define RECALC_SECTORS 8192 ++#define RECALC_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 32768 : 2048) + #define RECALC_WRITE_SUPER 16 + #define BITMAP_BLOCK_SIZE 4096 /* don't change it */ + #define BITMAP_FLUSH_INTERVAL (10 * HZ) +diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c +index fd8de027e83e3..6117efb425c7b 100644 +--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c ++++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c +@@ -759,6 +759,8 @@ static int vb2ops_venc_queue_setup(struct vb2_queue *vq, + return -EINVAL; + + if (*nplanes) { ++ if (*nplanes != q_data->fmt->num_planes) ++ return -EINVAL; + for (i = 0; i < *nplanes; i++) + if (sizes[i] < q_data->sizeimage[i]) + return -EINVAL; +diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c +index acf64723f9381..650e198a270e4 100644 +--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c ++++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c +@@ -529,15 +529,17 @@ static int load_requested_vpu(struct mtk_vpu *vpu, + int vpu_load_firmware(struct platform_device *pdev) + { + struct mtk_vpu *vpu; +- struct device *dev = &pdev->dev; ++ struct device *dev; + struct vpu_run *run; + int ret; + + if (!pdev) { +- dev_err(dev, "VPU platform device is invalid\n"); ++ pr_err("VPU platform device is invalid\n"); + return -EINVAL; + } + ++ dev = &pdev->dev; ++ + vpu = platform_get_drvdata(pdev); + run = &vpu->run; + +diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c +index 5757b72f53043..c54b2a23285cf 100644 +--- a/drivers/mmc/core/block.c ++++ b/drivers/mmc/core/block.c +@@ -1969,14 +1969,14 @@ static void mmc_blk_mq_poll_completion(struct mmc_queue *mq, + mmc_blk_urgent_bkops(mq, mqrq); + } + +-static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, struct request *req) ++static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, enum mmc_issue_type issue_type) + { + unsigned long flags; + bool put_card; + + spin_lock_irqsave(&mq->lock, flags); + +- mq->in_flight[mmc_issue_type(mq, req)] -= 1; ++ mq->in_flight[issue_type] -= 1; + + put_card = (mmc_tot_in_flight(mq) == 0); + +@@ -1988,6 +1988,7 @@ static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, struct request *req) + + static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req) + { ++ enum mmc_issue_type issue_type = mmc_issue_type(mq, req); + struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); + struct mmc_request *mrq = &mqrq->brq.mrq; + struct mmc_host *host = mq->card->host; +@@ -2003,7 +2004,7 @@ static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req) + else + blk_mq_complete_request(req); + +- mmc_blk_mq_dec_in_flight(mq, req); ++ mmc_blk_mq_dec_in_flight(mq, issue_type); + } + + void mmc_blk_mq_recovery(struct mmc_queue *mq) +diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c +index 148414d7f0c9d..d20943e433127 100644 +--- a/drivers/mmc/host/bcm2835.c ++++ b/drivers/mmc/host/bcm2835.c +@@ -1408,8 +1408,8 @@ static int bcm2835_probe(struct platform_device *pdev) + host->max_clk = clk_get_rate(clk); + + host->irq = platform_get_irq(pdev, 0); +- if (host->irq <= 0) { +- ret = -EINVAL; ++ if (host->irq < 0) { ++ ret = host->irq; + goto err; + } + +diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c +index 9548d022d52ba..86a8644af4504 100644 +--- a/drivers/mmc/host/sdhci_f_sdh30.c ++++ b/drivers/mmc/host/sdhci_f_sdh30.c +@@ -50,9 +50,16 @@ struct f_sdhost_priv { + bool enable_cmd_dat_delay; + }; + ++static void *sdhci_f_sdhost_priv(struct sdhci_host *host) ++{ ++ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); ++ ++ return sdhci_pltfm_priv(pltfm_host); ++} ++ + static void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host) + { +- struct f_sdhost_priv *priv = sdhci_priv(host); ++ struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host); + u32 ctrl = 0; + + usleep_range(2500, 3000); +@@ -85,7 +92,7 @@ static unsigned int sdhci_f_sdh30_get_min_clock(struct sdhci_host *host) + + static void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask) + { +- struct f_sdhost_priv *priv = sdhci_priv(host); ++ struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host); + u32 ctl; + + if (sdhci_readw(host, SDHCI_CLOCK_CONTROL) == 0) +@@ -109,31 +116,32 @@ static const struct sdhci_ops sdhci_f_sdh30_ops = { + .set_uhs_signaling = sdhci_set_uhs_signaling, + }; + ++static const struct sdhci_pltfm_data sdhci_f_sdh30_pltfm_data = { ++ .ops = &sdhci_f_sdh30_ops, ++ .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC ++ | SDHCI_QUIRK_INVERTED_WRITE_PROTECT, ++ .quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE ++ | SDHCI_QUIRK2_TUNING_WORK_AROUND, ++}; ++ + static int sdhci_f_sdh30_probe(struct platform_device *pdev) + { + struct sdhci_host *host; + struct device *dev = &pdev->dev; +- struct resource *res; +- int irq, ctrl = 0, ret = 0; ++ int ctrl = 0, ret = 0; + struct f_sdhost_priv *priv; ++ struct sdhci_pltfm_host *pltfm_host; + u32 reg = 0; + +- irq = platform_get_irq(pdev, 0); +- if (irq < 0) +- return irq; +- +- host = sdhci_alloc_host(dev, sizeof(struct f_sdhost_priv)); ++ host = sdhci_pltfm_init(pdev, &sdhci_f_sdh30_pltfm_data, ++ sizeof(struct f_sdhost_priv)); + if (IS_ERR(host)) + return PTR_ERR(host); + +- priv = sdhci_priv(host); ++ pltfm_host = sdhci_priv(host); ++ priv = sdhci_pltfm_priv(pltfm_host); + priv->dev = dev; + +- host->quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | +- SDHCI_QUIRK_INVERTED_WRITE_PROTECT; +- host->quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE | +- SDHCI_QUIRK2_TUNING_WORK_AROUND; +- + priv->enable_cmd_dat_delay = device_property_read_bool(dev, + "fujitsu,cmd-dat-delay-select"); + +@@ -141,19 +149,6 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev) + if (ret) + goto err; + +- platform_set_drvdata(pdev, host); +- +- host->hw_name = "f_sdh30"; +- host->ops = &sdhci_f_sdh30_ops; +- host->irq = irq; +- +- res = platform_get_resource(pdev, IORESOURCE_MEM, 0); +- host->ioaddr = devm_ioremap_resource(&pdev->dev, res); +- if (IS_ERR(host->ioaddr)) { +- ret = PTR_ERR(host->ioaddr); +- goto err; +- } +- + if (dev_of_node(dev)) { + sdhci_get_of_property(pdev); + +@@ -208,23 +203,22 @@ err_add_host: + err_clk: + clk_disable_unprepare(priv->clk_iface); + err: +- sdhci_free_host(host); ++ sdhci_pltfm_free(pdev); ++ + return ret; + } + + static int sdhci_f_sdh30_remove(struct platform_device *pdev) + { + struct sdhci_host *host = platform_get_drvdata(pdev); +- struct f_sdhost_priv *priv = sdhci_priv(host); +- +- sdhci_remove_host(host, readl(host->ioaddr + SDHCI_INT_STATUS) == +- 0xffffffff); ++ struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host); ++ struct clk *clk_iface = priv->clk_iface; ++ struct clk *clk = priv->clk; + +- clk_disable_unprepare(priv->clk_iface); +- clk_disable_unprepare(priv->clk); ++ sdhci_pltfm_unregister(pdev); + +- sdhci_free_host(host); +- platform_set_drvdata(pdev, NULL); ++ clk_disable_unprepare(clk_iface); ++ clk_disable_unprepare(clk); + + return 0; + } +diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c +index 519718bb246ce..0a67ad57e5c18 100644 +--- a/drivers/mmc/host/sunxi-mmc.c ++++ b/drivers/mmc/host/sunxi-mmc.c +@@ -1314,8 +1314,8 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host, + return ret; + + host->irq = platform_get_irq(pdev, 0); +- if (host->irq <= 0) { +- ret = -EINVAL; ++ if (host->irq < 0) { ++ ret = host->irq; + goto error_disable_mmc; + } + +diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c +index 639f87ba1606b..c8fd3cb91789a 100644 +--- a/drivers/mmc/host/wbsd.c ++++ b/drivers/mmc/host/wbsd.c +@@ -1708,8 +1708,6 @@ static int wbsd_init(struct device *dev, int base, int irq, int dma, + + wbsd_release_resources(host); + wbsd_free_mmc(dev); +- +- mmc_free_host(mmc); + return ret; + } + +diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c +index 20114e1dde77e..6df78a36bafde 100644 +--- a/drivers/net/bonding/bond_alb.c ++++ b/drivers/net/bonding/bond_alb.c +@@ -656,10 +656,10 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond) + return NULL; + arp = (struct arp_pkt *)skb_network_header(skb); + +- /* Don't modify or load balance ARPs that do not originate locally +- * (e.g.,arrive via a bridge). ++ /* Don't modify or load balance ARPs that do not originate ++ * from the bond itself or a VLAN directly above the bond. + */ +- if (!bond_slave_has_mac_rx(bond, arp->mac_src)) ++ if (!bond_slave_has_mac_rcu(bond, arp->mac_src)) + return NULL; + + if (arp->op_code == htons(ARPOP_REPLY)) { +diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c +index 282c53ef76d23..1bfede407270d 100644 +--- a/drivers/net/can/vxcan.c ++++ b/drivers/net/can/vxcan.c +@@ -179,12 +179,7 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, + + nla_peer = data[VXCAN_INFO_PEER]; + ifmp = nla_data(nla_peer); +- err = rtnl_nla_parse_ifla(peer_tb, +- nla_data(nla_peer) + +- sizeof(struct ifinfomsg), +- nla_len(nla_peer) - +- sizeof(struct ifinfomsg), +- NULL); ++ err = rtnl_nla_parse_ifinfomsg(peer_tb, nla_peer, extack); + if (err < 0) + return err; + +diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c +index 393ee145ae066..ca705a0e0961c 100644 +--- a/drivers/net/dsa/mv88e6xxx/chip.c ++++ b/drivers/net/dsa/mv88e6xxx/chip.c +@@ -2143,6 +2143,14 @@ static void mv88e6xxx_hardware_reset(struct mv88e6xxx_chip *chip) + + /* If there is a GPIO connected to the reset pin, toggle it */ + if (gpiod) { ++ /* If the switch has just been reset and not yet completed ++ * loading EEPROM, the reset may interrupt the I2C transaction ++ * mid-byte, causing the first EEPROM read after the reset ++ * from the wrong location resulting in the switch booting ++ * to wrong mode and inoperable. ++ */ ++ mv88e6xxx_g1_wait_eeprom_done(chip); ++ + gpiod_set_value_cansleep(gpiod, 1); + usleep_range(10000, 20000); + gpiod_set_value_cansleep(gpiod, 0); +diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c +index 89a63fdbe0e39..1148370e2432d 100644 +--- a/drivers/net/ethernet/broadcom/bgmac.c ++++ b/drivers/net/ethernet/broadcom/bgmac.c +@@ -1447,7 +1447,7 @@ int bgmac_phy_connect_direct(struct bgmac *bgmac) + int err; + + phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, NULL); +- if (!phy_dev || IS_ERR(phy_dev)) { ++ if (IS_ERR(phy_dev)) { + dev_err(bgmac->dev, "Failed to register fixed PHY device\n"); + return -ENODEV; + } +diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c +index 53495d39cc9c5..2fbec2acb606d 100644 +--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c ++++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c +@@ -565,7 +565,7 @@ static int bcmgenet_mii_pd_init(struct bcmgenet_priv *priv) + }; + + phydev = fixed_phy_register(PHY_POLL, &fphy_status, NULL); +- if (!phydev || IS_ERR(phydev)) { ++ if (IS_ERR(phydev)) { + dev_err(kdev, "failed to register fixed PHY device\n"); + return -ENODEV; + } +diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c +index a20d9147d5f22..fde949a73cb57 100644 +--- a/drivers/net/ethernet/ibm/ibmveth.c ++++ b/drivers/net/ethernet/ibm/ibmveth.c +@@ -196,7 +196,7 @@ static inline void ibmveth_flush_buffer(void *addr, unsigned long length) + unsigned long offset; + + for (offset = 0; offset < length; offset += SMP_CACHE_BYTES) +- asm("dcbfl %0,%1" :: "b" (addr), "r" (offset)); ++ asm("dcbf %0,%1,1" :: "b" (addr), "r" (offset)); + } + + /* replenish the buffers for a pool. note that we don't need to +diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c +index e4d8d20baf3b9..37a29b5fc2afd 100644 +--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c ++++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c +@@ -210,11 +210,11 @@ read_nvm_exit: + * @hw: pointer to the HW structure. + * @module_pointer: module pointer location in words from the NVM beginning + * @offset: offset in words from module start +- * @words: number of words to write +- * @data: buffer with words to write to the Shadow RAM ++ * @words: number of words to read ++ * @data: buffer with words to read to the Shadow RAM + * @last_command: tells the AdminQ that this is the last command + * +- * Writes a 16 bit words buffer to the Shadow RAM using the admin command. ++ * Reads a 16 bit words buffer to the Shadow RAM using the admin command. + **/ + static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw, + u8 module_pointer, u32 offset, +@@ -234,18 +234,18 @@ static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw, + */ + if ((offset + words) > hw->nvm.sr_size) + i40e_debug(hw, I40E_DEBUG_NVM, +- "NVM write error: offset %d beyond Shadow RAM limit %d\n", ++ "NVM read error: offset %d beyond Shadow RAM limit %d\n", + (offset + words), hw->nvm.sr_size); + else if (words > I40E_SR_SECTOR_SIZE_IN_WORDS) +- /* We can write only up to 4KB (one sector), in one AQ write */ ++ /* We can read only up to 4KB (one sector), in one AQ write */ + i40e_debug(hw, I40E_DEBUG_NVM, +- "NVM write fail error: tried to write %d words, limit is %d.\n", ++ "NVM read fail error: tried to read %d words, limit is %d.\n", + words, I40E_SR_SECTOR_SIZE_IN_WORDS); + else if (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS) + != (offset / I40E_SR_SECTOR_SIZE_IN_WORDS)) +- /* A single write cannot spread over two sectors */ ++ /* A single read cannot spread over two sectors */ + i40e_debug(hw, I40E_DEBUG_NVM, +- "NVM write error: cannot spread over two sectors in a single write offset=%d words=%d\n", ++ "NVM read error: cannot spread over two sectors in a single read offset=%d words=%d\n", + offset, words); + else + ret_code = i40e_aq_read_nvm(hw, module_pointer, +diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c +index c39e921757ba9..3c501c67bdbb6 100644 +--- a/drivers/net/ethernet/intel/igb/igb_ptp.c ++++ b/drivers/net/ethernet/intel/igb/igb_ptp.c +@@ -1245,18 +1245,6 @@ void igb_ptp_init(struct igb_adapter *adapter) + return; + } + +- spin_lock_init(&adapter->tmreg_lock); +- INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work); +- +- if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK) +- INIT_DELAYED_WORK(&adapter->ptp_overflow_work, +- igb_ptp_overflow_check); +- +- adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; +- adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF; +- +- igb_ptp_reset(adapter); +- + adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps, + &adapter->pdev->dev); + if (IS_ERR(adapter->ptp_clock)) { +@@ -1266,6 +1254,18 @@ void igb_ptp_init(struct igb_adapter *adapter) + dev_info(&adapter->pdev->dev, "added PHC on %s\n", + adapter->netdev->name); + adapter->ptp_flags |= IGB_PTP_ENABLED; ++ ++ spin_lock_init(&adapter->tmreg_lock); ++ INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work); ++ ++ if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK) ++ INIT_DELAYED_WORK(&adapter->ptp_overflow_work, ++ igb_ptp_overflow_check); ++ ++ adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; ++ adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF; ++ ++ igb_ptp_reset(adapter); + } + } + +diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +index 4a7609fd6dd07..5bc54ba68c831 100644 +--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c ++++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +@@ -2430,9 +2430,10 @@ rx_frscfg: + if (link < 0) + return NIX_AF_ERR_RX_LINK_INVALID; + +- nix_find_link_frs(rvu, req, pcifunc); + + linkcfg: ++ nix_find_link_frs(rvu, req, pcifunc); ++ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link)); + cfg = (cfg & ~(0xFFFFULL << 16)) | ((u64)req->maxlen << 16); + if (req->update_minlen) +diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c +index 5fbabae2909ee..5fea2e4a93101 100644 +--- a/drivers/net/ipvlan/ipvlan_main.c ++++ b/drivers/net/ipvlan/ipvlan_main.c +@@ -735,7 +735,8 @@ static int ipvlan_device_event(struct notifier_block *unused, + + write_pnet(&port->pnet, newnet); + +- ipvlan_migrate_l3s_hook(oldnet, newnet); ++ if (port->mode == IPVLAN_MODE_L3S) ++ ipvlan_migrate_l3s_hook(oldnet, newnet); + break; + } + case NETDEV_UNREGISTER: +diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c +index f729f55f6a174..25fa3ef5b804f 100644 +--- a/drivers/net/macsec.c ++++ b/drivers/net/macsec.c +@@ -317,6 +317,19 @@ static struct macsec_rx_sa *macsec_rxsa_get(struct macsec_rx_sa __rcu *ptr) + return sa; + } + ++static struct macsec_rx_sa *macsec_active_rxsa_get(struct macsec_rx_sc *rx_sc) ++{ ++ struct macsec_rx_sa *sa = NULL; ++ int an; ++ ++ for (an = 0; an < MACSEC_NUM_AN; an++) { ++ sa = macsec_rxsa_get(rx_sc->sa[an]); ++ if (sa) ++ break; ++ } ++ return sa; ++} ++ + static void free_rx_sc_rcu(struct rcu_head *head) + { + struct macsec_rx_sc *rx_sc = container_of(head, struct macsec_rx_sc, rcu_head); +@@ -561,18 +574,28 @@ static void macsec_encrypt_finish(struct sk_buff *skb, struct net_device *dev) + skb->protocol = eth_hdr(skb)->h_proto; + } + ++static unsigned int macsec_msdu_len(struct sk_buff *skb) ++{ ++ struct macsec_dev *macsec = macsec_priv(skb->dev); ++ struct macsec_secy *secy = &macsec->secy; ++ bool sci_present = macsec_skb_cb(skb)->has_sci; ++ ++ return skb->len - macsec_hdr_len(sci_present) - secy->icv_len; ++} ++ + static void macsec_count_tx(struct sk_buff *skb, struct macsec_tx_sc *tx_sc, + struct macsec_tx_sa *tx_sa) + { ++ unsigned int msdu_len = macsec_msdu_len(skb); + struct pcpu_tx_sc_stats *txsc_stats = this_cpu_ptr(tx_sc->stats); + + u64_stats_update_begin(&txsc_stats->syncp); + if (tx_sc->encrypt) { +- txsc_stats->stats.OutOctetsEncrypted += skb->len; ++ txsc_stats->stats.OutOctetsEncrypted += msdu_len; + txsc_stats->stats.OutPktsEncrypted++; + this_cpu_inc(tx_sa->stats->OutPktsEncrypted); + } else { +- txsc_stats->stats.OutOctetsProtected += skb->len; ++ txsc_stats->stats.OutOctetsProtected += msdu_len; + txsc_stats->stats.OutPktsProtected++; + this_cpu_inc(tx_sa->stats->OutPktsProtected); + } +@@ -602,9 +625,10 @@ static void macsec_encrypt_done(struct crypto_async_request *base, int err) + aead_request_free(macsec_skb_cb(skb)->req); + + rcu_read_lock_bh(); +- macsec_encrypt_finish(skb, dev); + macsec_count_tx(skb, &macsec->secy.tx_sc, macsec_skb_cb(skb)->tx_sa); +- len = skb->len; ++ /* packet is encrypted/protected so tx_bytes must be calculated */ ++ len = macsec_msdu_len(skb) + 2 * ETH_ALEN; ++ macsec_encrypt_finish(skb, dev); + ret = dev_queue_xmit(skb); + count_tx(dev, ret, len); + rcu_read_unlock_bh(); +@@ -760,6 +784,7 @@ static struct sk_buff *macsec_encrypt(struct sk_buff *skb, + + macsec_skb_cb(skb)->req = req; + macsec_skb_cb(skb)->tx_sa = tx_sa; ++ macsec_skb_cb(skb)->has_sci = sci_present; + aead_request_set_callback(req, 0, macsec_encrypt_done, skb); + + dev_hold(skb->dev); +@@ -800,15 +825,17 @@ static bool macsec_post_decrypt(struct sk_buff *skb, struct macsec_secy *secy, u + u64_stats_update_begin(&rxsc_stats->syncp); + rxsc_stats->stats.InPktsLate++; + u64_stats_update_end(&rxsc_stats->syncp); ++ DEV_STATS_INC(secy->netdev, rx_dropped); + return false; + } + + if (secy->validate_frames != MACSEC_VALIDATE_DISABLED) { ++ unsigned int msdu_len = macsec_msdu_len(skb); + u64_stats_update_begin(&rxsc_stats->syncp); + if (hdr->tci_an & MACSEC_TCI_E) +- rxsc_stats->stats.InOctetsDecrypted += skb->len; ++ rxsc_stats->stats.InOctetsDecrypted += msdu_len; + else +- rxsc_stats->stats.InOctetsValidated += skb->len; ++ rxsc_stats->stats.InOctetsValidated += msdu_len; + u64_stats_update_end(&rxsc_stats->syncp); + } + +@@ -821,6 +848,8 @@ static bool macsec_post_decrypt(struct sk_buff *skb, struct macsec_secy *secy, u + u64_stats_update_begin(&rxsc_stats->syncp); + rxsc_stats->stats.InPktsNotValid++; + u64_stats_update_end(&rxsc_stats->syncp); ++ this_cpu_inc(rx_sa->stats->InPktsNotValid); ++ DEV_STATS_INC(secy->netdev, rx_errors); + return false; + } + +@@ -906,9 +935,9 @@ static void macsec_decrypt_done(struct crypto_async_request *base, int err) + + macsec_finalize_skb(skb, macsec->secy.icv_len, + macsec_extra_len(macsec_skb_cb(skb)->has_sci)); ++ len = skb->len; + macsec_reset_skb(skb, macsec->secy.netdev); + +- len = skb->len; + if (gro_cells_receive(&macsec->gro_cells, skb) == NET_RX_SUCCESS) + count_rx(dev, len); + +@@ -1050,6 +1079,7 @@ static void handle_not_macsec(struct sk_buff *skb) + u64_stats_update_begin(&secy_stats->syncp); + secy_stats->stats.InPktsNoTag++; + u64_stats_update_end(&secy_stats->syncp); ++ DEV_STATS_INC(macsec->secy.netdev, rx_dropped); + continue; + } + +@@ -1161,6 +1191,7 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb) + u64_stats_update_begin(&secy_stats->syncp); + secy_stats->stats.InPktsBadTag++; + u64_stats_update_end(&secy_stats->syncp); ++ DEV_STATS_INC(secy->netdev, rx_errors); + goto drop_nosa; + } + +@@ -1171,11 +1202,15 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb) + /* If validateFrames is Strict or the C bit in the + * SecTAG is set, discard + */ ++ struct macsec_rx_sa *active_rx_sa = macsec_active_rxsa_get(rx_sc); + if (hdr->tci_an & MACSEC_TCI_C || + secy->validate_frames == MACSEC_VALIDATE_STRICT) { + u64_stats_update_begin(&rxsc_stats->syncp); + rxsc_stats->stats.InPktsNotUsingSA++; + u64_stats_update_end(&rxsc_stats->syncp); ++ DEV_STATS_INC(secy->netdev, rx_errors); ++ if (active_rx_sa) ++ this_cpu_inc(active_rx_sa->stats->InPktsNotUsingSA); + goto drop_nosa; + } + +@@ -1185,6 +1220,8 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb) + u64_stats_update_begin(&rxsc_stats->syncp); + rxsc_stats->stats.InPktsUnusedSA++; + u64_stats_update_end(&rxsc_stats->syncp); ++ if (active_rx_sa) ++ this_cpu_inc(active_rx_sa->stats->InPktsUnusedSA); + goto deliver; + } + +@@ -1202,6 +1239,7 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb) + u64_stats_update_begin(&rxsc_stats->syncp); + rxsc_stats->stats.InPktsLate++; + u64_stats_update_end(&rxsc_stats->syncp); ++ DEV_STATS_INC(macsec->secy.netdev, rx_dropped); + goto drop; + } + } +@@ -1230,6 +1268,7 @@ static rx_handler_result_t macsec_handle_frame(struct sk_buff **pskb) + deliver: + macsec_finalize_skb(skb, secy->icv_len, + macsec_extra_len(macsec_skb_cb(skb)->has_sci)); ++ len = skb->len; + macsec_reset_skb(skb, secy->netdev); + + if (rx_sa) +@@ -1237,12 +1276,11 @@ deliver: + macsec_rxsc_put(rx_sc); + + skb_orphan(skb); +- len = skb->len; + ret = gro_cells_receive(&macsec->gro_cells, skb); + if (ret == NET_RX_SUCCESS) + count_rx(dev, len); + else +- macsec->secy.netdev->stats.rx_dropped++; ++ DEV_STATS_INC(macsec->secy.netdev, rx_dropped); + + rcu_read_unlock(); + +@@ -1279,6 +1317,7 @@ nosci: + u64_stats_update_begin(&secy_stats->syncp); + secy_stats->stats.InPktsNoSCI++; + u64_stats_update_end(&secy_stats->syncp); ++ DEV_STATS_INC(macsec->secy.netdev, rx_errors); + continue; + } + +@@ -1297,7 +1336,7 @@ nosci: + secy_stats->stats.InPktsUnknownSCI++; + u64_stats_update_end(&secy_stats->syncp); + } else { +- macsec->secy.netdev->stats.rx_dropped++; ++ DEV_STATS_INC(macsec->secy.netdev, rx_dropped); + } + } + +@@ -2731,21 +2770,21 @@ static netdev_tx_t macsec_start_xmit(struct sk_buff *skb, + + if (!secy->operational) { + kfree_skb(skb); +- dev->stats.tx_dropped++; ++ DEV_STATS_INC(dev, tx_dropped); + return NETDEV_TX_OK; + } + ++ len = skb->len; + skb = macsec_encrypt(skb, dev); + if (IS_ERR(skb)) { + if (PTR_ERR(skb) != -EINPROGRESS) +- dev->stats.tx_dropped++; ++ DEV_STATS_INC(dev, tx_dropped); + return NETDEV_TX_OK; + } + + macsec_count_tx(skb, &macsec->secy.tx_sc, macsec_skb_cb(skb)->tx_sa); + + macsec_encrypt_finish(skb, dev); +- len = skb->len; + ret = dev_queue_xmit(skb); + count_tx(dev, ret, len); + return ret; +@@ -2957,8 +2996,9 @@ static void macsec_get_stats64(struct net_device *dev, + s->tx_bytes += tmp.tx_bytes; + } + +- s->rx_dropped = dev->stats.rx_dropped; +- s->tx_dropped = dev->stats.tx_dropped; ++ s->rx_dropped = atomic_long_read(&dev->stats.__rx_dropped); ++ s->tx_dropped = atomic_long_read(&dev->stats.__tx_dropped); ++ s->rx_errors = atomic_long_read(&dev->stats.__rx_errors); + } + + static int macsec_get_iflink(const struct net_device *dev) +diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c +index 7be75a611e9e8..0e0bcc304d6c8 100644 +--- a/drivers/net/phy/broadcom.c ++++ b/drivers/net/phy/broadcom.c +@@ -425,6 +425,17 @@ static int bcm5482_read_status(struct phy_device *phydev) + return err; + } + ++static int bcm54810_read_mmd(struct phy_device *phydev, int devnum, u16 regnum) ++{ ++ return -EOPNOTSUPP; ++} ++ ++static int bcm54810_write_mmd(struct phy_device *phydev, int devnum, u16 regnum, ++ u16 val) ++{ ++ return -EOPNOTSUPP; ++} ++ + static int bcm5481_config_aneg(struct phy_device *phydev) + { + struct device_node *np = phydev->mdio.dev.of_node; +@@ -696,6 +707,8 @@ static struct phy_driver broadcom_drivers[] = { + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCM54810", + /* PHY_GBIT_FEATURES */ ++ .read_mmd = bcm54810_read_mmd, ++ .write_mmd = bcm54810_write_mmd, + .config_init = bcm54xx_config_init, + .config_aneg = bcm5481_config_aneg, + .ack_interrupt = bcm_phy_ack_intr, +diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c +index 5c72e9ac4804d..4dc98832bbba6 100644 +--- a/drivers/net/team/team.c ++++ b/drivers/net/team/team.c +@@ -2194,7 +2194,9 @@ static void team_setup(struct net_device *dev) + + dev->hw_features = TEAM_VLAN_FEATURES | + NETIF_F_HW_VLAN_CTAG_RX | +- NETIF_F_HW_VLAN_CTAG_FILTER; ++ NETIF_F_HW_VLAN_CTAG_FILTER | ++ NETIF_F_HW_VLAN_STAG_RX | ++ NETIF_F_HW_VLAN_STAG_FILTER; + + dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4; + dev->features |= dev->hw_features; +diff --git a/drivers/net/veth.c b/drivers/net/veth.c +index 683425e3a353c..a6445bba4f942 100644 +--- a/drivers/net/veth.c ++++ b/drivers/net/veth.c +@@ -1255,10 +1255,7 @@ static int veth_newlink(struct net *src_net, struct net_device *dev, + + nla_peer = data[VETH_INFO_PEER]; + ifmp = nla_data(nla_peer); +- err = rtnl_nla_parse_ifla(peer_tb, +- nla_data(nla_peer) + sizeof(struct ifinfomsg), +- nla_len(nla_peer) - sizeof(struct ifinfomsg), +- NULL); ++ err = rtnl_nla_parse_ifinfomsg(peer_tb, nla_peer, extack); + if (err < 0) + return err; + +diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c +index 6e520720beb59..f6a6678f43b9a 100644 +--- a/drivers/net/virtio_net.c ++++ b/drivers/net/virtio_net.c +@@ -3265,8 +3265,6 @@ static int virtnet_probe(struct virtio_device *vdev) + } + } + +- _virtnet_set_queues(vi, vi->curr_queue_pairs); +- + /* serialize netdev register + virtio_device_ready() with ndo_open() */ + rtnl_lock(); + +@@ -3279,6 +3277,8 @@ static int virtnet_probe(struct virtio_device *vdev) + + virtio_device_ready(vdev); + ++ _virtnet_set_queues(vi, vi->curr_queue_pairs); ++ + rtnl_unlock(); + + err = virtnet_cpu_notif_add(vi); +diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c +index 98be06ac2af24..f304bdefa8f5f 100644 +--- a/drivers/pci/hotplug/acpiphp_glue.c ++++ b/drivers/pci/hotplug/acpiphp_glue.c +@@ -510,12 +510,15 @@ static void enable_slot(struct acpiphp_slot *slot, bool bridge) + if (pass && dev->subordinate) { + check_hotplug_bridge(slot, dev); + pcibios_resource_survey_bus(dev->subordinate); +- __pci_bus_size_bridges(dev->subordinate, +- &add_list); ++ if (pci_is_root_bus(bus)) ++ __pci_bus_size_bridges(dev->subordinate, &add_list); + } + } + } +- __pci_bus_assign_resources(bus, &add_list, NULL); ++ if (pci_is_root_bus(bus)) ++ __pci_bus_assign_resources(bus, &add_list, NULL); ++ else ++ pci_assign_unassigned_bridge_resources(bus->self); + } + + acpiphp_sanitize_bus(bus); +diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c +index 3a512513cb32f..6b311d6f8bf02 100644 +--- a/drivers/pcmcia/rsrc_nonstatic.c ++++ b/drivers/pcmcia/rsrc_nonstatic.c +@@ -1053,6 +1053,8 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s) + q = p->next; + kfree(p); + } ++ ++ kfree(data); + } + + +diff --git a/drivers/pinctrl/pinctrl-rza2.c b/drivers/pinctrl/pinctrl-rza2.c +index eda88cdf870df..8c3174d007507 100644 +--- a/drivers/pinctrl/pinctrl-rza2.c ++++ b/drivers/pinctrl/pinctrl-rza2.c +@@ -14,6 +14,7 @@ + #include <linux/gpio/driver.h> + #include <linux/io.h> + #include <linux/module.h> ++#include <linux/mutex.h> + #include <linux/of_device.h> + #include <linux/pinctrl/pinmux.h> + +@@ -46,6 +47,7 @@ struct rza2_pinctrl_priv { + struct pinctrl_dev *pctl; + struct pinctrl_gpio_range gpio_range; + int npins; ++ struct mutex mutex; /* serialize adding groups and functions */ + }; + + #define RZA2_PDR(port) (0x0000 + (port) * 2) /* Direction 16-bit */ +@@ -359,10 +361,14 @@ static int rza2_dt_node_to_map(struct pinctrl_dev *pctldev, + psel_val[i] = MUX_FUNC(value); + } + ++ mutex_lock(&priv->mutex); ++ + /* Register a single pin group listing all the pins we read from DT */ + gsel = pinctrl_generic_add_group(pctldev, np->name, pins, npins, NULL); +- if (gsel < 0) +- return gsel; ++ if (gsel < 0) { ++ ret = gsel; ++ goto unlock; ++ } + + /* + * Register a single group function where the 'data' is an array PSEL +@@ -391,6 +397,8 @@ static int rza2_dt_node_to_map(struct pinctrl_dev *pctldev, + (*map)->data.mux.function = np->name; + *num_maps = 1; + ++ mutex_unlock(&priv->mutex); ++ + return 0; + + remove_function: +@@ -399,6 +407,9 @@ remove_function: + remove_group: + pinctrl_generic_remove_group(pctldev, gsel); + ++unlock: ++ mutex_unlock(&priv->mutex); ++ + dev_err(priv->dev, "Unable to parse DT node %s\n", np->name); + + return ret; +@@ -476,6 +487,8 @@ static int rza2_pinctrl_probe(struct platform_device *pdev) + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + ++ mutex_init(&priv->mutex); ++ + platform_set_drvdata(pdev, priv); + + priv->npins = (int)(uintptr_t)of_device_get_match_data(&pdev->dev) * +diff --git a/drivers/scsi/raid_class.c b/drivers/scsi/raid_class.c +index 711252e52d8e1..95a86e0dfd77a 100644 +--- a/drivers/scsi/raid_class.c ++++ b/drivers/scsi/raid_class.c +@@ -209,54 +209,6 @@ raid_attr_ro_state(level); + raid_attr_ro_fn(resync); + raid_attr_ro_state_fn(state); + +-static void raid_component_release(struct device *dev) +-{ +- struct raid_component *rc = +- container_of(dev, struct raid_component, dev); +- dev_printk(KERN_ERR, rc->dev.parent, "COMPONENT RELEASE\n"); +- put_device(rc->dev.parent); +- kfree(rc); +-} +- +-int raid_component_add(struct raid_template *r,struct device *raid_dev, +- struct device *component_dev) +-{ +- struct device *cdev = +- attribute_container_find_class_device(&r->raid_attrs.ac, +- raid_dev); +- struct raid_component *rc; +- struct raid_data *rd = dev_get_drvdata(cdev); +- int err; +- +- rc = kzalloc(sizeof(*rc), GFP_KERNEL); +- if (!rc) +- return -ENOMEM; +- +- INIT_LIST_HEAD(&rc->node); +- device_initialize(&rc->dev); +- rc->dev.release = raid_component_release; +- rc->dev.parent = get_device(component_dev); +- rc->num = rd->component_count++; +- +- dev_set_name(&rc->dev, "component-%d", rc->num); +- list_add_tail(&rc->node, &rd->component_list); +- rc->dev.class = &raid_class.class; +- err = device_add(&rc->dev); +- if (err) +- goto err_out; +- +- return 0; +- +-err_out: +- put_device(&rc->dev); +- list_del(&rc->node); +- rd->component_count--; +- put_device(component_dev); +- kfree(rc); +- return err; +-} +-EXPORT_SYMBOL(raid_component_add); +- + struct raid_template * + raid_class_attach(struct raid_function_template *ft) + { +diff --git a/drivers/scsi/snic/snic_disc.c b/drivers/scsi/snic/snic_disc.c +index c445853c623e2..e362453e8d262 100644 +--- a/drivers/scsi/snic/snic_disc.c ++++ b/drivers/scsi/snic/snic_disc.c +@@ -317,12 +317,11 @@ snic_tgt_create(struct snic *snic, struct snic_tgt_id *tgtid) + "Snic Tgt: device_add, with err = %d\n", + ret); + +- put_device(&tgt->dev); + put_device(&snic->shost->shost_gendev); + spin_lock_irqsave(snic->shost->host_lock, flags); + list_del(&tgt->list); + spin_unlock_irqrestore(snic->shost->host_lock, flags); +- kfree(tgt); ++ put_device(&tgt->dev); + tgt = NULL; + + return tgt; +diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c +index f49f3b017206c..4770513944d43 100644 +--- a/drivers/tty/serial/8250/8250_port.c ++++ b/drivers/tty/serial/8250/8250_port.c +@@ -3135,6 +3135,7 @@ void serial8250_init_port(struct uart_8250_port *up) + struct uart_port *port = &up->port; + + spin_lock_init(&port->lock); ++ port->pm = NULL; + port->ops = &serial8250_pops; + + up->cur_iotype = 0xFF; +diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c +index 88c8357969220..9230d96ed3cd8 100644 +--- a/drivers/tty/serial/fsl_lpuart.c ++++ b/drivers/tty/serial/fsl_lpuart.c +@@ -1023,8 +1023,8 @@ static void lpuart_copy_rx_to_tty(struct lpuart_port *sport) + unsigned long sr = lpuart32_read(&sport->port, UARTSTAT); + + if (sr & (UARTSTAT_PE | UARTSTAT_FE)) { +- /* Read DR to clear the error flags */ +- lpuart32_read(&sport->port, UARTDATA); ++ /* Clear the error flags */ ++ lpuart32_write(&sport->port, sr, UARTSTAT); + + if (sr & UARTSTAT_PE) + sport->port.icount.parity++; +diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c +index 85561b3194a16..0fe545815c5ce 100644 +--- a/drivers/usb/chipidea/ci_hdrc_imx.c ++++ b/drivers/usb/chipidea/ci_hdrc_imx.c +@@ -70,6 +70,10 @@ static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = { + CI_HDRC_PMQOS, + }; + ++static const struct ci_hdrc_imx_platform_flag imx8ulp_usb_data = { ++ .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, ++}; ++ + static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx23-usb", .data = &imx23_usb_data}, + { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, +@@ -80,6 +84,7 @@ static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data}, + { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data}, + { .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data}, ++ { .compatible = "fsl,imx8ulp-usb", .data = &imx8ulp_usb_data}, + { /* sentinel */ } + }; + MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); +diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c +index 2d7cfa8825aa8..8c3ab9bfbb9e6 100644 +--- a/drivers/usb/dwc3/dwc3-qcom.c ++++ b/drivers/usb/dwc3/dwc3-qcom.c +@@ -193,55 +193,58 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom) + /* Only usable in contexts where the role can not change. */ + static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom) + { +- struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); ++ struct dwc3 *dwc; ++ ++ /* ++ * FIXME: Fix this layering violation. ++ */ ++ dwc = platform_get_drvdata(qcom->dwc3); ++ ++ /* Core driver may not have probed yet. */ ++ if (!dwc) ++ return false; + + return dwc->xhci; + } + ++static void dwc3_qcom_enable_wakeup_irq(int irq) ++{ ++ if (!irq) ++ return; ++ ++ enable_irq(irq); ++ enable_irq_wake(irq); ++} ++ ++static void dwc3_qcom_disable_wakeup_irq(int irq) ++{ ++ if (!irq) ++ return; ++ ++ disable_irq_wake(irq); ++ disable_irq_nosync(irq); ++} ++ + static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) + { +- if (qcom->hs_phy_irq) { +- disable_irq_wake(qcom->hs_phy_irq); +- disable_irq_nosync(qcom->hs_phy_irq); +- } ++ dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq); + +- if (qcom->dp_hs_phy_irq) { +- disable_irq_wake(qcom->dp_hs_phy_irq); +- disable_irq_nosync(qcom->dp_hs_phy_irq); +- } ++ dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq); + +- if (qcom->dm_hs_phy_irq) { +- disable_irq_wake(qcom->dm_hs_phy_irq); +- disable_irq_nosync(qcom->dm_hs_phy_irq); +- } ++ dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq); + +- if (qcom->ss_phy_irq) { +- disable_irq_wake(qcom->ss_phy_irq); +- disable_irq_nosync(qcom->ss_phy_irq); +- } ++ dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq); + } + + static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) + { +- if (qcom->hs_phy_irq) { +- enable_irq(qcom->hs_phy_irq); +- enable_irq_wake(qcom->hs_phy_irq); +- } ++ dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq); + +- if (qcom->dp_hs_phy_irq) { +- enable_irq(qcom->dp_hs_phy_irq); +- enable_irq_wake(qcom->dp_hs_phy_irq); +- } ++ dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq); + +- if (qcom->dm_hs_phy_irq) { +- enable_irq(qcom->dm_hs_phy_irq); +- enable_irq_wake(qcom->dm_hs_phy_irq); +- } ++ dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq); + +- if (qcom->ss_phy_irq) { +- enable_irq(qcom->ss_phy_irq); +- enable_irq_wake(qcom->ss_phy_irq); +- } ++ dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq); + } + + static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) +diff --git a/drivers/video/fbdev/core/sysimgblt.c b/drivers/video/fbdev/core/sysimgblt.c +index a4d05b1b17d7d..665ef7a0a2495 100644 +--- a/drivers/video/fbdev/core/sysimgblt.c ++++ b/drivers/video/fbdev/core/sysimgblt.c +@@ -188,23 +188,29 @@ static void fast_imageblit(const struct fb_image *image, struct fb_info *p, + { + u32 fgx = fgcolor, bgx = bgcolor, bpp = p->var.bits_per_pixel; + u32 ppw = 32/bpp, spitch = (image->width + 7)/8; +- u32 bit_mask, end_mask, eorx, shift; +- const char *s = image->data, *src; ++ u32 bit_mask, eorx, shift; ++ const u8 *s = image->data, *src; + u32 *dst; +- const u32 *tab = NULL; ++ const u32 *tab; ++ size_t tablen; ++ u32 colortab[16]; + int i, j, k; + + switch (bpp) { + case 8: + tab = fb_be_math(p) ? cfb_tab8_be : cfb_tab8_le; ++ tablen = 16; + break; + case 16: + tab = fb_be_math(p) ? cfb_tab16_be : cfb_tab16_le; ++ tablen = 4; + break; + case 32: +- default: + tab = cfb_tab32; ++ tablen = 2; + break; ++ default: ++ return; + } + + for (i = ppw-1; i--; ) { +@@ -218,20 +224,62 @@ static void fast_imageblit(const struct fb_image *image, struct fb_info *p, + eorx = fgx ^ bgx; + k = image->width/ppw; + ++ for (i = 0; i < tablen; ++i) ++ colortab[i] = (tab[i] & eorx) ^ bgx; ++ + for (i = image->height; i--; ) { + dst = dst1; + shift = 8; + src = s; + +- for (j = k; j--; ) { ++ /* ++ * Manually unroll the per-line copying loop for better ++ * performance. This works until we processed the last ++ * completely filled source byte (inclusive). ++ */ ++ switch (ppw) { ++ case 4: /* 8 bpp */ ++ for (j = k; j >= 2; j -= 2, ++src) { ++ *dst++ = colortab[(*src >> 4) & bit_mask]; ++ *dst++ = colortab[(*src >> 0) & bit_mask]; ++ } ++ break; ++ case 2: /* 16 bpp */ ++ for (j = k; j >= 4; j -= 4, ++src) { ++ *dst++ = colortab[(*src >> 6) & bit_mask]; ++ *dst++ = colortab[(*src >> 4) & bit_mask]; ++ *dst++ = colortab[(*src >> 2) & bit_mask]; ++ *dst++ = colortab[(*src >> 0) & bit_mask]; ++ } ++ break; ++ case 1: /* 32 bpp */ ++ for (j = k; j >= 8; j -= 8, ++src) { ++ *dst++ = colortab[(*src >> 7) & bit_mask]; ++ *dst++ = colortab[(*src >> 6) & bit_mask]; ++ *dst++ = colortab[(*src >> 5) & bit_mask]; ++ *dst++ = colortab[(*src >> 4) & bit_mask]; ++ *dst++ = colortab[(*src >> 3) & bit_mask]; ++ *dst++ = colortab[(*src >> 2) & bit_mask]; ++ *dst++ = colortab[(*src >> 1) & bit_mask]; ++ *dst++ = colortab[(*src >> 0) & bit_mask]; ++ } ++ break; ++ } ++ ++ /* ++ * For image widths that are not a multiple of 8, there ++ * are trailing pixels left on the current line. Print ++ * them as well. ++ */ ++ for (; j--; ) { + shift -= ppw; +- end_mask = tab[(*src >> shift) & bit_mask]; +- *dst++ = (end_mask & eorx) ^ bgx; ++ *dst++ = colortab[(*src >> shift) & bit_mask]; + if (!shift) { + shift = 8; +- src++; ++ ++src; + } + } ++ + dst1 += p->fix.line_length; + s += spitch; + } +diff --git a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c +index 17174cd7a5bba..b02b0bc106132 100644 +--- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c ++++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c +@@ -510,7 +510,9 @@ static int mmphw_probe(struct platform_device *pdev) + ret = -ENOENT; + goto failed; + } +- clk_prepare_enable(ctrl->clk); ++ ret = clk_prepare_enable(ctrl->clk); ++ if (ret) ++ goto failed; + + /* init global regs */ + ctrl_set_default(ctrl); +diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c +index e781e5e9215f0..aee8b5ce8b63c 100644 +--- a/drivers/virtio/virtio_mmio.c ++++ b/drivers/virtio/virtio_mmio.c +@@ -542,11 +542,9 @@ static void virtio_mmio_release_dev(struct device *_d) + { + struct virtio_device *vdev = + container_of(_d, struct virtio_device, dev); +- struct virtio_mmio_device *vm_dev = +- container_of(vdev, struct virtio_mmio_device, vdev); +- struct platform_device *pdev = vm_dev->pdev; ++ struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); + +- devm_kfree(&pdev->dev, vm_dev); ++ kfree(vm_dev); + } + + /* Platform device */ +@@ -554,19 +552,10 @@ static void virtio_mmio_release_dev(struct device *_d) + static int virtio_mmio_probe(struct platform_device *pdev) + { + struct virtio_mmio_device *vm_dev; +- struct resource *mem; + unsigned long magic; + int rc; + +- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); +- if (!mem) +- return -EINVAL; +- +- if (!devm_request_mem_region(&pdev->dev, mem->start, +- resource_size(mem), pdev->name)) +- return -EBUSY; +- +- vm_dev = devm_kzalloc(&pdev->dev, sizeof(*vm_dev), GFP_KERNEL); ++ vm_dev = kzalloc(sizeof(*vm_dev), GFP_KERNEL); + if (!vm_dev) + return -ENOMEM; + +@@ -577,9 +566,9 @@ static int virtio_mmio_probe(struct platform_device *pdev) + INIT_LIST_HEAD(&vm_dev->virtqueues); + spin_lock_init(&vm_dev->lock); + +- vm_dev->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); +- if (vm_dev->base == NULL) +- return -EFAULT; ++ vm_dev->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(vm_dev->base)) ++ return PTR_ERR(vm_dev->base); + + /* Check magic value */ + magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE); +diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c +index c5944c61317f3..0d4afeacb237b 100644 +--- a/fs/btrfs/volumes.c ++++ b/fs/btrfs/volumes.c +@@ -4558,8 +4558,7 @@ int btrfs_cancel_balance(struct btrfs_fs_info *fs_info) + } + } + +- BUG_ON(fs_info->balance_ctl || +- test_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags)); ++ ASSERT(!test_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags)); + atomic_dec(&fs_info->balance_cancel_req); + mutex_unlock(&fs_info->balance_mutex); + return 0; +diff --git a/fs/cifs/file.c b/fs/cifs/file.c +index 86924831fd4ba..a0b99c5e07217 100644 +--- a/fs/cifs/file.c ++++ b/fs/cifs/file.c +@@ -4510,9 +4510,9 @@ static int cifs_readpage_worker(struct file *file, struct page *page, + + io_error: + kunmap(page); +- unlock_page(page); + + read_complete: ++ unlock_page(page); + return rc; + } + +diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c +index b6242071583e0..86d645d02d55c 100644 +--- a/fs/dlm/lock.c ++++ b/fs/dlm/lock.c +@@ -1856,7 +1856,7 @@ static void del_timeout(struct dlm_lkb *lkb) + void dlm_scan_timeout(struct dlm_ls *ls) + { + struct dlm_rsb *r; +- struct dlm_lkb *lkb; ++ struct dlm_lkb *lkb = NULL, *iter; + int do_cancel, do_warn; + s64 wait_us; + +@@ -1867,27 +1867,28 @@ void dlm_scan_timeout(struct dlm_ls *ls) + do_cancel = 0; + do_warn = 0; + mutex_lock(&ls->ls_timeout_mutex); +- list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list) { ++ list_for_each_entry(iter, &ls->ls_timeout, lkb_time_list) { + + wait_us = ktime_to_us(ktime_sub(ktime_get(), +- lkb->lkb_timestamp)); ++ iter->lkb_timestamp)); + +- if ((lkb->lkb_exflags & DLM_LKF_TIMEOUT) && +- wait_us >= (lkb->lkb_timeout_cs * 10000)) ++ if ((iter->lkb_exflags & DLM_LKF_TIMEOUT) && ++ wait_us >= (iter->lkb_timeout_cs * 10000)) + do_cancel = 1; + +- if ((lkb->lkb_flags & DLM_IFL_WATCH_TIMEWARN) && ++ if ((iter->lkb_flags & DLM_IFL_WATCH_TIMEWARN) && + wait_us >= dlm_config.ci_timewarn_cs * 10000) + do_warn = 1; + + if (!do_cancel && !do_warn) + continue; +- hold_lkb(lkb); ++ hold_lkb(iter); ++ lkb = iter; + break; + } + mutex_unlock(&ls->ls_timeout_mutex); + +- if (!do_cancel && !do_warn) ++ if (!lkb) + break; + + r = lkb->lkb_resource; +@@ -5241,21 +5242,18 @@ void dlm_recover_waiters_pre(struct dlm_ls *ls) + + static struct dlm_lkb *find_resend_waiter(struct dlm_ls *ls) + { +- struct dlm_lkb *lkb; +- int found = 0; ++ struct dlm_lkb *lkb = NULL, *iter; + + mutex_lock(&ls->ls_waiters_mutex); +- list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) { +- if (lkb->lkb_flags & DLM_IFL_RESEND) { +- hold_lkb(lkb); +- found = 1; ++ list_for_each_entry(iter, &ls->ls_waiters, lkb_wait_reply) { ++ if (iter->lkb_flags & DLM_IFL_RESEND) { ++ hold_lkb(iter); ++ lkb = iter; + break; + } + } + mutex_unlock(&ls->ls_waiters_mutex); + +- if (!found) +- lkb = NULL; + return lkb; + } + +@@ -5914,37 +5912,36 @@ int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + int mode, uint32_t flags, void *name, unsigned int namelen, + unsigned long timeout_cs, uint32_t *lkid) + { +- struct dlm_lkb *lkb; ++ struct dlm_lkb *lkb = NULL, *iter; + struct dlm_user_args *ua; + int found_other_mode = 0; +- int found = 0; + int rv = 0; + + mutex_lock(&ls->ls_orphans_mutex); +- list_for_each_entry(lkb, &ls->ls_orphans, lkb_ownqueue) { +- if (lkb->lkb_resource->res_length != namelen) ++ list_for_each_entry(iter, &ls->ls_orphans, lkb_ownqueue) { ++ if (iter->lkb_resource->res_length != namelen) + continue; +- if (memcmp(lkb->lkb_resource->res_name, name, namelen)) ++ if (memcmp(iter->lkb_resource->res_name, name, namelen)) + continue; +- if (lkb->lkb_grmode != mode) { ++ if (iter->lkb_grmode != mode) { + found_other_mode = 1; + continue; + } + +- found = 1; +- list_del_init(&lkb->lkb_ownqueue); +- lkb->lkb_flags &= ~DLM_IFL_ORPHAN; +- *lkid = lkb->lkb_id; ++ lkb = iter; ++ list_del_init(&iter->lkb_ownqueue); ++ iter->lkb_flags &= ~DLM_IFL_ORPHAN; ++ *lkid = iter->lkb_id; + break; + } + mutex_unlock(&ls->ls_orphans_mutex); + +- if (!found && found_other_mode) { ++ if (!lkb && found_other_mode) { + rv = -EAGAIN; + goto out; + } + +- if (!found) { ++ if (!lkb) { + rv = -ENOENT; + goto out; + } +diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c +index f3482e936cc25..28735e8c5e206 100644 +--- a/fs/dlm/plock.c ++++ b/fs/dlm/plock.c +@@ -80,8 +80,7 @@ static void send_op(struct plock_op *op) + abandoned waiter. So, we have to insert the unlock-close when the + lock call is interrupted. */ + +-static void do_unlock_close(struct dlm_ls *ls, u64 number, +- struct file *file, struct file_lock *fl) ++static void do_unlock_close(const struct dlm_plock_info *info) + { + struct plock_op *op; + +@@ -90,15 +89,12 @@ static void do_unlock_close(struct dlm_ls *ls, u64 number, + return; + + op->info.optype = DLM_PLOCK_OP_UNLOCK; +- op->info.pid = fl->fl_pid; +- op->info.fsid = ls->ls_global_id; +- op->info.number = number; ++ op->info.pid = info->pid; ++ op->info.fsid = info->fsid; ++ op->info.number = info->number; + op->info.start = 0; + op->info.end = OFFSET_MAX; +- if (fl->fl_lmops && fl->fl_lmops->lm_grant) +- op->info.owner = (__u64) fl->fl_pid; +- else +- op->info.owner = (__u64)(long) fl->fl_owner; ++ op->info.owner = info->owner; + + op->info.flags |= DLM_PLOCK_FL_CLOSE; + send_op(op); +@@ -161,13 +157,14 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, + + rv = wait_event_killable(recv_wq, (op->done != 0)); + if (rv == -ERESTARTSYS) { +- log_debug(ls, "%s: wait killed %llx", __func__, +- (unsigned long long)number); + spin_lock(&ops_lock); + list_del(&op->list); + spin_unlock(&ops_lock); ++ log_debug(ls, "%s: wait interrupted %x %llx pid %d", ++ __func__, ls->ls_global_id, ++ (unsigned long long)number, op->info.pid); + dlm_release_plock_op(op); +- do_unlock_close(ls, number, file, fl); ++ do_unlock_close(&op->info); + goto out; + } + +@@ -408,7 +405,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count, + if (op->info.flags & DLM_PLOCK_FL_CLOSE) + list_del(&op->list); + else +- list_move(&op->list, &recv_list); ++ list_move_tail(&op->list, &recv_list); + memcpy(&info, &op->info, sizeof(info)); + } + spin_unlock(&ops_lock); +@@ -433,9 +430,9 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count, + static ssize_t dev_write(struct file *file, const char __user *u, size_t count, + loff_t *ppos) + { ++ struct plock_op *op = NULL, *iter; + struct dlm_plock_info info; +- struct plock_op *op; +- int found = 0, do_callback = 0; ++ int do_callback = 0; + + if (count != sizeof(info)) + return -EINVAL; +@@ -446,31 +443,63 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count, + if (check_version(&info)) + return -EINVAL; + ++ /* ++ * The results for waiting ops (SETLKW) can be returned in any ++ * order, so match all fields to find the op. The results for ++ * non-waiting ops are returned in the order that they were sent ++ * to userspace, so match the result with the first non-waiting op. ++ */ + spin_lock(&ops_lock); +- list_for_each_entry(op, &recv_list, list) { +- if (op->info.fsid == info.fsid && +- op->info.number == info.number && +- op->info.owner == info.owner) { +- list_del_init(&op->list); +- memcpy(&op->info, &info, sizeof(info)); +- if (op->data) +- do_callback = 1; +- else +- op->done = 1; +- found = 1; +- break; ++ if (info.wait) { ++ list_for_each_entry(iter, &recv_list, list) { ++ if (iter->info.fsid == info.fsid && ++ iter->info.number == info.number && ++ iter->info.owner == info.owner && ++ iter->info.pid == info.pid && ++ iter->info.start == info.start && ++ iter->info.end == info.end && ++ iter->info.ex == info.ex && ++ iter->info.wait) { ++ op = iter; ++ break; ++ } ++ } ++ } else { ++ list_for_each_entry(iter, &recv_list, list) { ++ if (!iter->info.wait) { ++ op = iter; ++ break; ++ } + } + } ++ ++ if (op) { ++ /* Sanity check that op and info match. */ ++ if (info.wait) ++ WARN_ON(op->info.optype != DLM_PLOCK_OP_LOCK); ++ else ++ WARN_ON(op->info.fsid != info.fsid || ++ op->info.number != info.number || ++ op->info.owner != info.owner || ++ op->info.optype != info.optype); ++ ++ list_del_init(&op->list); ++ memcpy(&op->info, &info, sizeof(info)); ++ if (op->data) ++ do_callback = 1; ++ else ++ op->done = 1; ++ } + spin_unlock(&ops_lock); + +- if (found) { ++ if (op) { + if (do_callback) + dlm_plock_callback(op); + else + wake_up(&recv_wq); + } else +- log_print("dev_write no op %x %llx", info.fsid, +- (unsigned long long)info.number); ++ log_print("%s: no op %x %llx", __func__, ++ info.fsid, (unsigned long long)info.number); + return count; + } + +diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c +index 8928e99dfd47d..df18f38a02734 100644 +--- a/fs/dlm/recover.c ++++ b/fs/dlm/recover.c +@@ -732,10 +732,9 @@ void dlm_recovered_lock(struct dlm_rsb *r) + + static void recover_lvb(struct dlm_rsb *r) + { +- struct dlm_lkb *lkb, *high_lkb = NULL; ++ struct dlm_lkb *big_lkb = NULL, *iter, *high_lkb = NULL; + uint32_t high_seq = 0; + int lock_lvb_exists = 0; +- int big_lock_exists = 0; + int lvblen = r->res_ls->ls_lvblen; + + if (!rsb_flag(r, RSB_NEW_MASTER2) && +@@ -751,37 +750,37 @@ static void recover_lvb(struct dlm_rsb *r) + /* we are the new master, so figure out if VALNOTVALID should + be set, and set the rsb lvb from the best lkb available. */ + +- list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue) { +- if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) ++ list_for_each_entry(iter, &r->res_grantqueue, lkb_statequeue) { ++ if (!(iter->lkb_exflags & DLM_LKF_VALBLK)) + continue; + + lock_lvb_exists = 1; + +- if (lkb->lkb_grmode > DLM_LOCK_CR) { +- big_lock_exists = 1; ++ if (iter->lkb_grmode > DLM_LOCK_CR) { ++ big_lkb = iter; + goto setflag; + } + +- if (((int)lkb->lkb_lvbseq - (int)high_seq) >= 0) { +- high_lkb = lkb; +- high_seq = lkb->lkb_lvbseq; ++ if (((int)iter->lkb_lvbseq - (int)high_seq) >= 0) { ++ high_lkb = iter; ++ high_seq = iter->lkb_lvbseq; + } + } + +- list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue) { +- if (!(lkb->lkb_exflags & DLM_LKF_VALBLK)) ++ list_for_each_entry(iter, &r->res_convertqueue, lkb_statequeue) { ++ if (!(iter->lkb_exflags & DLM_LKF_VALBLK)) + continue; + + lock_lvb_exists = 1; + +- if (lkb->lkb_grmode > DLM_LOCK_CR) { +- big_lock_exists = 1; ++ if (iter->lkb_grmode > DLM_LOCK_CR) { ++ big_lkb = iter; + goto setflag; + } + +- if (((int)lkb->lkb_lvbseq - (int)high_seq) >= 0) { +- high_lkb = lkb; +- high_seq = lkb->lkb_lvbseq; ++ if (((int)iter->lkb_lvbseq - (int)high_seq) >= 0) { ++ high_lkb = iter; ++ high_seq = iter->lkb_lvbseq; + } + } + +@@ -790,7 +789,7 @@ static void recover_lvb(struct dlm_rsb *r) + goto out; + + /* lvb is invalidated if only NL/CR locks remain */ +- if (!big_lock_exists) ++ if (!big_lkb) + rsb_set_flag(r, RSB_VALNOTVALID); + + if (!r->res_lvbptr) { +@@ -799,9 +798,9 @@ static void recover_lvb(struct dlm_rsb *r) + goto out; + } + +- if (big_lock_exists) { +- r->res_lvbseq = lkb->lkb_lvbseq; +- memcpy(r->res_lvbptr, lkb->lkb_lvbptr, lvblen); ++ if (big_lkb) { ++ r->res_lvbseq = big_lkb->lkb_lvbseq; ++ memcpy(r->res_lvbptr, big_lkb->lkb_lvbptr, lvblen); + } else if (high_lkb) { + r->res_lvbseq = high_lkb->lkb_lvbseq; + memcpy(r->res_lvbptr, high_lkb->lkb_lvbptr, lvblen); +diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c +index baf0a70460c03..15e757f763806 100644 +--- a/fs/gfs2/super.c ++++ b/fs/gfs2/super.c +@@ -1046,7 +1046,14 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root) + { + struct gfs2_sbd *sdp = root->d_sb->s_fs_info; + struct gfs2_args *args = &sdp->sd_args; +- int val; ++ unsigned int logd_secs, statfs_slow, statfs_quantum, quota_quantum; ++ ++ spin_lock(&sdp->sd_tune.gt_spin); ++ logd_secs = sdp->sd_tune.gt_logd_secs; ++ quota_quantum = sdp->sd_tune.gt_quota_quantum; ++ statfs_quantum = sdp->sd_tune.gt_statfs_quantum; ++ statfs_slow = sdp->sd_tune.gt_statfs_slow; ++ spin_unlock(&sdp->sd_tune.gt_spin); + + if (is_ancestor(root, sdp->sd_master_dir)) + seq_puts(s, ",meta"); +@@ -1101,17 +1108,14 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root) + } + if (args->ar_discard) + seq_puts(s, ",discard"); +- val = sdp->sd_tune.gt_logd_secs; +- if (val != 30) +- seq_printf(s, ",commit=%d", val); +- val = sdp->sd_tune.gt_statfs_quantum; +- if (val != 30) +- seq_printf(s, ",statfs_quantum=%d", val); +- else if (sdp->sd_tune.gt_statfs_slow) ++ if (logd_secs != 30) ++ seq_printf(s, ",commit=%d", logd_secs); ++ if (statfs_quantum != 30) ++ seq_printf(s, ",statfs_quantum=%d", statfs_quantum); ++ else if (statfs_slow) + seq_puts(s, ",statfs_quantum=0"); +- val = sdp->sd_tune.gt_quota_quantum; +- if (val != 60) +- seq_printf(s, ",quota_quantum=%d", val); ++ if (quota_quantum != 60) ++ seq_printf(s, ",quota_quantum=%d", quota_quantum); + if (args->ar_statfs_percent) + seq_printf(s, ",statfs_percent=%d", args->ar_statfs_percent); + if (args->ar_errors != GFS2_ERRORS_DEFAULT) { +diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c +index dac67ee1879be..8e8d53241386f 100644 +--- a/fs/jfs/jfs_dmap.c ++++ b/fs/jfs/jfs_dmap.c +@@ -2027,6 +2027,9 @@ dbAllocDmapLev(struct bmap * bmp, + if (dbFindLeaf((dmtree_t *) & dp->tree, l2nb, &leafidx)) + return -ENOSPC; + ++ if (leafidx < 0) ++ return -EIO; ++ + /* determine the block number within the file system corresponding + * to the leaf at which free space was found. + */ +diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c +index c8ce7f1bc5942..6f6a5b9203d3f 100644 +--- a/fs/jfs/jfs_txnmgr.c ++++ b/fs/jfs/jfs_txnmgr.c +@@ -354,6 +354,11 @@ tid_t txBegin(struct super_block *sb, int flag) + jfs_info("txBegin: flag = 0x%x", flag); + log = JFS_SBI(sb)->log; + ++ if (!log) { ++ jfs_error(sb, "read-only filesystem\n"); ++ return 0; ++ } ++ + TXN_LOCK(); + + INCREMENT(TxStat.txBegin); +diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c +index 7a55d14cc1af0..f155ad6650bd4 100644 +--- a/fs/jfs/namei.c ++++ b/fs/jfs/namei.c +@@ -798,6 +798,11 @@ static int jfs_link(struct dentry *old_dentry, + if (rc) + goto out; + ++ if (isReadOnly(ip)) { ++ jfs_error(ip->i_sb, "read-only filesystem\n"); ++ return -EROFS; ++ } ++ + tid = txBegin(ip->i_sb, 0); + + mutex_lock_nested(&JFS_IP(dir)->commit_mutex, COMMIT_MUTEX_PARENT); +diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c +index 231da9fadf098..c41d149626047 100644 +--- a/fs/nfs/nfs4proc.c ++++ b/fs/nfs/nfs4proc.c +@@ -6887,8 +6887,15 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) + } else if (!nfs4_update_lock_stateid(lsp, &data->res.stateid)) + goto out_restart; + break; +- case -NFS4ERR_BAD_STATEID: + case -NFS4ERR_OLD_STATEID: ++ if (data->arg.new_lock_owner != 0 && ++ nfs4_refresh_open_old_stateid(&data->arg.open_stateid, ++ lsp->ls_state)) ++ goto out_restart; ++ if (nfs4_refresh_lock_old_stateid(&data->arg.lock_stateid, lsp)) ++ goto out_restart; ++ fallthrough; ++ case -NFS4ERR_BAD_STATEID: + case -NFS4ERR_STALE_STATEID: + case -NFS4ERR_EXPIRED: + if (data->arg.new_lock_owner != 0) { +diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c +index 5922eceb01762..477819700156a 100644 +--- a/fs/nfsd/nfs4state.c ++++ b/fs/nfsd/nfs4state.c +@@ -1096,9 +1096,9 @@ static void revoke_delegation(struct nfs4_delegation *dp) + WARN_ON(!list_empty(&dp->dl_recall_lru)); + + if (clp->cl_minorversion) { ++ spin_lock(&clp->cl_lock); + dp->dl_stid.sc_type = NFS4_REVOKED_DELEG_STID; + refcount_inc(&dp->dl_stid.sc_count); +- spin_lock(&clp->cl_lock); + list_add(&dp->dl_recall_lru, &clp->cl_revoked); + spin_unlock(&clp->cl_lock); + } +@@ -5513,15 +5513,6 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid) + if (ZERO_STATEID(stateid) || ONE_STATEID(stateid) || + CLOSE_STATEID(stateid)) + return status; +- /* Client debugging aid. */ +- if (!same_clid(&stateid->si_opaque.so_clid, &cl->cl_clientid)) { +- char addr_str[INET6_ADDRSTRLEN]; +- rpc_ntop((struct sockaddr *)&cl->cl_addr, addr_str, +- sizeof(addr_str)); +- pr_warn_ratelimited("NFSD: client %s testing state ID " +- "with incorrect client ID\n", addr_str); +- return status; +- } + spin_lock(&cl->cl_lock); + s = find_stateid_locked(cl, stateid); + if (!s) +diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h +index 28348c44ea5b2..8d81e88f1d1ef 100644 +--- a/fs/overlayfs/ovl_entry.h ++++ b/fs/overlayfs/ovl_entry.h +@@ -27,6 +27,7 @@ struct ovl_sb { + }; + + struct ovl_layer { ++ /* ovl_free_fs() relies on @mnt being the first member! */ + struct vfsmount *mnt; + /* Trap in ovl inode cache */ + struct inode *trap; +@@ -37,6 +38,14 @@ struct ovl_layer { + int fsid; + }; + ++/* ++ * ovl_free_fs() relies on @mnt being the first member when unmounting ++ * the private mounts created for each layer. Let's check both the ++ * offset and type. ++ */ ++static_assert(offsetof(struct ovl_layer, mnt) == 0); ++static_assert(__same_type(typeof_member(struct ovl_layer, mnt), struct vfsmount *)); ++ + struct ovl_path { + struct ovl_layer *layer; + struct dentry *dentry; +diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c +index 1d652af48f0b1..3d1a71d2909bb 100644 +--- a/fs/quota/dquot.c ++++ b/fs/quota/dquot.c +@@ -546,7 +546,7 @@ restart: + continue; + /* Wait for dquot users */ + if (atomic_read(&dquot->dq_count)) { +- dqgrab(dquot); ++ atomic_inc(&dquot->dq_count); + spin_unlock(&dq_list_lock); + /* + * Once dqput() wakes us up, we know it's time to free +@@ -2415,7 +2415,8 @@ int dquot_load_quota_sb(struct super_block *sb, int type, int format_id, + + error = add_dquot_ref(sb, type); + if (error) +- dquot_disable(sb, type, flags); ++ dquot_disable(sb, type, ++ DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED); + + return error; + out_fmt: +diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c +index 622569007b530..2142cbd1dde24 100644 +--- a/fs/udf/unicode.c ++++ b/fs/udf/unicode.c +@@ -247,7 +247,7 @@ static int udf_name_from_CS0(struct super_block *sb, + } + + if (translate) { +- if (str_o_len <= 2 && str_o[0] == '.' && ++ if (str_o_len > 0 && str_o_len <= 2 && str_o[0] == '.' && + (str_o_len == 1 || str_o[1] == '.')) + needsCRC = 1; + if (needsCRC) { +diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h +index 8364502f92cfe..8eaf640d46809 100644 +--- a/include/drm/drm_dp_helper.h ++++ b/include/drm/drm_dp_helper.h +@@ -1052,7 +1052,7 @@ u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SI + + #define DP_BRANCH_OUI_HEADER_SIZE 0xc + #define DP_RECEIVER_CAP_SIZE 0xf +-#define DP_DSC_RECEIVER_CAP_SIZE 0xf ++#define DP_DSC_RECEIVER_CAP_SIZE 0x10 /* DSC Capabilities 0x60 through 0x6F */ + #define EDP_PSR_RECEIVER_CAP_SIZE 2 + #define EDP_DISPLAY_CTL_CAP_SIZE 3 + +diff --git a/include/linux/clk.h b/include/linux/clk.h +index 87730337e28f8..562859ee24f43 100644 +--- a/include/linux/clk.h ++++ b/include/linux/clk.h +@@ -172,6 +172,39 @@ int clk_get_scaled_duty_cycle(struct clk *clk, unsigned int scale); + */ + bool clk_is_match(const struct clk *p, const struct clk *q); + ++/** ++ * clk_rate_exclusive_get - get exclusivity over the rate control of a ++ * producer ++ * @clk: clock source ++ * ++ * This function allows drivers to get exclusive control over the rate of a ++ * provider. It prevents any other consumer to execute, even indirectly, ++ * opereation which could alter the rate of the provider or cause glitches ++ * ++ * If exlusivity is claimed more than once on clock, even by the same driver, ++ * the rate effectively gets locked as exclusivity can't be preempted. ++ * ++ * Must not be called from within atomic context. ++ * ++ * Returns success (0) or negative errno. ++ */ ++int clk_rate_exclusive_get(struct clk *clk); ++ ++/** ++ * clk_rate_exclusive_put - release exclusivity over the rate control of a ++ * producer ++ * @clk: clock source ++ * ++ * This function allows drivers to release the exclusivity it previously got ++ * from clk_rate_exclusive_get() ++ * ++ * The caller must balance the number of clk_rate_exclusive_get() and ++ * clk_rate_exclusive_put() calls. ++ * ++ * Must not be called from within atomic context. ++ */ ++void clk_rate_exclusive_put(struct clk *clk); ++ + #else + + static inline int clk_notifier_register(struct clk *clk, +@@ -218,6 +251,13 @@ static inline bool clk_is_match(const struct clk *p, const struct clk *q) + return p == q; + } + ++static inline int clk_rate_exclusive_get(struct clk *clk) ++{ ++ return 0; ++} ++ ++static inline void clk_rate_exclusive_put(struct clk *clk) {} ++ + #endif + + /** +@@ -530,38 +570,6 @@ struct clk *devm_clk_get_optional_enabled(struct device *dev, const char *id); + */ + struct clk *devm_get_clk_from_child(struct device *dev, + struct device_node *np, const char *con_id); +-/** +- * clk_rate_exclusive_get - get exclusivity over the rate control of a +- * producer +- * @clk: clock source +- * +- * This function allows drivers to get exclusive control over the rate of a +- * provider. It prevents any other consumer to execute, even indirectly, +- * opereation which could alter the rate of the provider or cause glitches +- * +- * If exlusivity is claimed more than once on clock, even by the same driver, +- * the rate effectively gets locked as exclusivity can't be preempted. +- * +- * Must not be called from within atomic context. +- * +- * Returns success (0) or negative errno. +- */ +-int clk_rate_exclusive_get(struct clk *clk); +- +-/** +- * clk_rate_exclusive_put - release exclusivity over the rate control of a +- * producer +- * @clk: clock source +- * +- * This function allows drivers to release the exclusivity it previously got +- * from clk_rate_exclusive_get() +- * +- * The caller must balance the number of clk_rate_exclusive_get() and +- * clk_rate_exclusive_put() calls. +- * +- * Must not be called from within atomic context. +- */ +-void clk_rate_exclusive_put(struct clk *clk); + + /** + * clk_enable - inform the system when the clock source should be running. +@@ -918,14 +926,6 @@ static inline void clk_bulk_put_all(int num_clks, struct clk_bulk_data *clks) {} + + static inline void devm_clk_put(struct device *dev, struct clk *clk) {} + +- +-static inline int clk_rate_exclusive_get(struct clk *clk) +-{ +- return 0; +-} +- +-static inline void clk_rate_exclusive_put(struct clk *clk) {} +- + static inline int clk_enable(struct clk *clk) + { + return 0; +diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h +index d70a914cba118..1e0dd0541b1ed 100644 +--- a/include/linux/interconnect.h ++++ b/include/linux/interconnect.h +@@ -29,6 +29,8 @@ struct icc_path *icc_get(struct device *dev, const int src_id, + const int dst_id); + struct icc_path *of_icc_get(struct device *dev, const char *name); + void icc_put(struct icc_path *path); ++int icc_enable(struct icc_path *path); ++int icc_disable(struct icc_path *path); + int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw); + void icc_set_tag(struct icc_path *path, u32 tag); + +@@ -50,6 +52,16 @@ static inline void icc_put(struct icc_path *path) + { + } + ++static inline int icc_enable(struct icc_path *path) ++{ ++ return 0; ++} ++ ++static inline int icc_disable(struct icc_path *path) ++{ ++ return 0; ++} ++ + static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) + { + return 0; +diff --git a/include/linux/mm.h b/include/linux/mm.h +index d35c29d322d83..d14aba548ff4e 100644 +--- a/include/linux/mm.h ++++ b/include/linux/mm.h +@@ -37,6 +37,8 @@ struct user_struct; + struct writeback_control; + struct bdi_writeback; + ++extern int sysctl_page_lock_unfairness; ++ + void init_mm_internals(void); + + #ifndef CONFIG_NEED_MULTIPLE_NODES /* Don't use mapnrs, do it properly */ +diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h +index 7145795b4b9da..f615e217e575a 100644 +--- a/include/linux/pm_runtime.h ++++ b/include/linux/pm_runtime.h +@@ -38,7 +38,7 @@ extern int pm_runtime_force_resume(struct device *dev); + extern int __pm_runtime_idle(struct device *dev, int rpmflags); + extern int __pm_runtime_suspend(struct device *dev, int rpmflags); + extern int __pm_runtime_resume(struct device *dev, int rpmflags); +-extern int pm_runtime_get_if_in_use(struct device *dev); ++extern int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count); + extern int pm_schedule_suspend(struct device *dev, unsigned int delay); + extern int __pm_runtime_set_status(struct device *dev, unsigned int status); + extern int pm_runtime_barrier(struct device *dev); +@@ -59,6 +59,11 @@ extern void pm_runtime_put_suppliers(struct device *dev); + extern void pm_runtime_new_link(struct device *dev); + extern void pm_runtime_drop_link(struct device_link *link); + ++static inline int pm_runtime_get_if_in_use(struct device *dev) ++{ ++ return pm_runtime_get_if_active(dev, false); ++} ++ + static inline void pm_suspend_ignore_children(struct device *dev, bool enable) + { + dev->power.ignore_children = enable; +@@ -142,6 +147,11 @@ static inline int pm_runtime_get_if_in_use(struct device *dev) + { + return -EINVAL; + } ++static inline int pm_runtime_get_if_active(struct device *dev, ++ bool ign_usage_count) ++{ ++ return -EINVAL; ++} + static inline int __pm_runtime_set_status(struct device *dev, + unsigned int status) { return 0; } + static inline int pm_runtime_barrier(struct device *dev) { return 0; } +diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h +index 5cdfcb873a8f0..772d45b2a60a0 100644 +--- a/include/linux/raid_class.h ++++ b/include/linux/raid_class.h +@@ -77,7 +77,3 @@ DEFINE_RAID_ATTRIBUTE(enum raid_state, state) + + struct raid_template *raid_class_attach(struct raid_function_template *); + void raid_class_release(struct raid_template *); +- +-int __must_check raid_component_add(struct raid_template *, struct device *, +- struct device *); +- +diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h +index a960de68ac69e..6047058d67037 100644 +--- a/include/linux/virtio_net.h ++++ b/include/linux/virtio_net.h +@@ -148,6 +148,10 @@ retry: + if (gso_type & SKB_GSO_UDP) + nh_off -= thlen; + ++ /* Kernel has a special handling for GSO_BY_FRAGS. */ ++ if (gso_size == GSO_BY_FRAGS) ++ return -EINVAL; ++ + /* Too small packets are not really GSO ones. */ + if (skb->len - nh_off > gso_size) { + shinfo->gso_size = gso_size; +diff --git a/include/linux/wait.h b/include/linux/wait.h +index 7d04c1b588c73..03bff85e365f4 100644 +--- a/include/linux/wait.h ++++ b/include/linux/wait.h +@@ -20,6 +20,8 @@ int default_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int + #define WQ_FLAG_EXCLUSIVE 0x01 + #define WQ_FLAG_WOKEN 0x02 + #define WQ_FLAG_BOOKMARK 0x04 ++#define WQ_FLAG_CUSTOM 0x08 ++#define WQ_FLAG_DONE 0x10 + + /* + * A single wait-queue entry structure: +diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h +index 0b9c3a287061e..57b48c33f56cf 100644 +--- a/include/media/v4l2-mem2mem.h ++++ b/include/media/v4l2-mem2mem.h +@@ -401,7 +401,14 @@ void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, + static inline + unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx) + { +- return m2m_ctx->out_q_ctx.num_rdy; ++ unsigned int num_buf_rdy; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&m2m_ctx->out_q_ctx.rdy_spinlock, flags); ++ num_buf_rdy = m2m_ctx->out_q_ctx.num_rdy; ++ spin_unlock_irqrestore(&m2m_ctx->out_q_ctx.rdy_spinlock, flags); ++ ++ return num_buf_rdy; + } + + /** +@@ -413,7 +420,14 @@ unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx) + static inline + unsigned int v4l2_m2m_num_dst_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx) + { +- return m2m_ctx->cap_q_ctx.num_rdy; ++ unsigned int num_buf_rdy; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags); ++ num_buf_rdy = m2m_ctx->cap_q_ctx.num_rdy; ++ spin_unlock_irqrestore(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags); ++ ++ return num_buf_rdy; + } + + /** +diff --git a/include/net/bonding.h b/include/net/bonding.h +index a3698f0fb2a6d..9e9ccbade3b54 100644 +--- a/include/net/bonding.h ++++ b/include/net/bonding.h +@@ -686,37 +686,14 @@ static inline struct slave *bond_slave_has_mac(struct bonding *bond, + } + + /* Caller must hold rcu_read_lock() for read */ +-static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, +- const u8 *mac) ++static inline bool bond_slave_has_mac_rcu(struct bonding *bond, const u8 *mac) + { + struct list_head *iter; + struct slave *tmp; + +- bond_for_each_slave_rcu(bond, tmp, iter) +- if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) +- return tmp; +- +- return NULL; +-} +- +-/* Caller must hold rcu_read_lock() for read */ +-static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) +-{ +- struct list_head *iter; +- struct slave *tmp; +- struct netdev_hw_addr *ha; +- + bond_for_each_slave_rcu(bond, tmp, iter) + if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) + return true; +- +- if (netdev_uc_empty(bond->dev)) +- return false; +- +- netdev_for_each_uc_addr(ha, bond->dev) +- if (ether_addr_equal_64bits(mac, ha->addr)) +- return true; +- + return false; + } + +diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h +index 4da61c950e931..5c2a73bbfabee 100644 +--- a/include/net/rtnetlink.h ++++ b/include/net/rtnetlink.h +@@ -166,8 +166,8 @@ struct net_device *rtnl_create_link(struct net *net, const char *ifname, + int rtnl_delete_link(struct net_device *dev); + int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm); + +-int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len, +- struct netlink_ext_ack *exterr); ++int rtnl_nla_parse_ifinfomsg(struct nlattr **tb, const struct nlattr *nla_peer, ++ struct netlink_ext_ack *exterr); + struct net *rtnl_get_net_ns_capable(struct sock *sk, int netnsid); + + #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind) +diff --git a/include/net/sock.h b/include/net/sock.h +index ee8630d6abc16..f73ef7087a187 100644 +--- a/include/net/sock.h ++++ b/include/net/sock.h +@@ -1161,6 +1161,7 @@ struct proto { + /* + * Pressure flag: try to collapse. + * Technical note: it is used by multiple contexts non atomically. ++ * Make sure to use READ_ONCE()/WRITE_ONCE() for all reads/writes. + * All the __sk_mem_schedule() is of this nature: accounting + * is strict, actions are advisory and have some latency. + */ +@@ -1274,6 +1275,12 @@ static inline bool sk_has_memory_pressure(const struct sock *sk) + return sk->sk_prot->memory_pressure != NULL; + } + ++static inline bool sk_under_global_memory_pressure(const struct sock *sk) ++{ ++ return sk->sk_prot->memory_pressure && ++ !!READ_ONCE(*sk->sk_prot->memory_pressure); ++} ++ + static inline bool sk_under_memory_pressure(const struct sock *sk) + { + if (!sk->sk_prot->memory_pressure) +@@ -1283,7 +1290,7 @@ static inline bool sk_under_memory_pressure(const struct sock *sk) + mem_cgroup_under_socket_pressure(sk->sk_memcg)) + return true; + +- return !!*sk->sk_prot->memory_pressure; ++ return !!READ_ONCE(*sk->sk_prot->memory_pressure); + } + + static inline long +@@ -1337,7 +1344,7 @@ proto_memory_pressure(struct proto *prot) + { + if (!prot->memory_pressure) + return false; +- return !!*prot->memory_pressure; ++ return !!READ_ONCE(*prot->memory_pressure); + } + + +diff --git a/include/sound/core.h b/include/sound/core.h +index 8a80121811d94..e4b24dcb4b190 100644 +--- a/include/sound/core.h ++++ b/include/sound/core.h +@@ -119,6 +119,9 @@ struct snd_card { + bool registered; /* card_dev is registered? */ + wait_queue_head_t remove_sleep; + ++ size_t total_pcm_alloc_bytes; /* total amount of allocated buffers */ ++ struct mutex memory_mutex; /* protection for the above */ ++ + #ifdef CONFIG_PM + unsigned int power_state; /* power state */ + wait_queue_head_t power_sleep; +diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h +index 26927a560eabc..3c716214dab1a 100644 +--- a/include/trace/events/rpm.h ++++ b/include/trace/events/rpm.h +@@ -74,6 +74,12 @@ DEFINE_EVENT(rpm_internal, rpm_idle, + + TP_ARGS(dev, flags) + ); ++DEFINE_EVENT(rpm_internal, rpm_usage, ++ ++ TP_PROTO(struct device *dev, int flags), ++ ++ TP_ARGS(dev, flags) ++); + + TRACE_EVENT(rpm_return_int, + TP_PROTO(struct device *dev, unsigned long ip, int ret), +diff --git a/kernel/sysctl.c b/kernel/sysctl.c +index decabf5714c0f..4f85f7ed42fc5 100644 +--- a/kernel/sysctl.c ++++ b/kernel/sysctl.c +@@ -1563,6 +1563,14 @@ static struct ctl_table vm_table[] = { + .proc_handler = percpu_pagelist_fraction_sysctl_handler, + .extra1 = SYSCTL_ZERO, + }, ++ { ++ .procname = "page_lock_unfairness", ++ .data = &sysctl_page_lock_unfairness, ++ .maxlen = sizeof(sysctl_page_lock_unfairness), ++ .mode = 0644, ++ .proc_handler = proc_dointvec_minmax, ++ .extra1 = SYSCTL_ZERO, ++ }, + #ifdef CONFIG_MMU + { + .procname = "max_map_count", +diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c +index 8006592803e1c..ad0ee4de92485 100644 +--- a/kernel/trace/trace.c ++++ b/kernel/trace/trace.c +@@ -3499,8 +3499,15 @@ static void *s_start(struct seq_file *m, loff_t *pos) + * will point to the same string as current_trace->name. + */ + mutex_lock(&trace_types_lock); +- if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name)) ++ if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name)) { ++ /* Close iter->trace before switching to the new current tracer */ ++ if (iter->trace->close) ++ iter->trace->close(iter); + *iter->trace = *tr->current_trace; ++ /* Reopen the new current tracer */ ++ if (iter->trace->open) ++ iter->trace->open(iter); ++ } + mutex_unlock(&trace_types_lock); + + #ifdef CONFIG_TRACER_MAX_TRACE +diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c +index a745b0cee5d32..07557904dab8a 100644 +--- a/kernel/trace/trace_irqsoff.c ++++ b/kernel/trace/trace_irqsoff.c +@@ -228,7 +228,8 @@ static void irqsoff_trace_open(struct trace_iterator *iter) + { + if (is_graph(iter->tr)) + graph_trace_open(iter); +- ++ else ++ iter->private = NULL; + } + + static void irqsoff_trace_close(struct trace_iterator *iter) +diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c +index a422cf6a0358b..0b95277396fcd 100644 +--- a/kernel/trace/trace_kprobe.c ++++ b/kernel/trace/trace_kprobe.c +@@ -1134,9 +1134,10 @@ probe_mem_read_user(void *dest, void *src, size_t size) + + /* Note that we don't verify it, since the code does not come from user space */ + static int +-process_fetch_insn(struct fetch_insn *code, struct pt_regs *regs, void *dest, ++process_fetch_insn(struct fetch_insn *code, void *rec, void *dest, + void *base) + { ++ struct pt_regs *regs = rec; + unsigned long val; + + retry: +diff --git a/kernel/trace/trace_probe_tmpl.h b/kernel/trace/trace_probe_tmpl.h +index 29348874ebde7..cf14a37dff8c8 100644 +--- a/kernel/trace/trace_probe_tmpl.h ++++ b/kernel/trace/trace_probe_tmpl.h +@@ -54,7 +54,7 @@ fetch_apply_bitfield(struct fetch_insn *code, void *buf) + * If dest is NULL, don't store result and return required dynamic data size. + */ + static int +-process_fetch_insn(struct fetch_insn *code, struct pt_regs *regs, ++process_fetch_insn(struct fetch_insn *code, void *rec, + void *dest, void *base); + static nokprobe_inline int fetch_store_strlen(unsigned long addr); + static nokprobe_inline int +@@ -190,7 +190,7 @@ __get_data_size(struct trace_probe *tp, struct pt_regs *regs) + + /* Store the value of each argument */ + static nokprobe_inline void +-store_trace_args(void *data, struct trace_probe *tp, struct pt_regs *regs, ++store_trace_args(void *data, struct trace_probe *tp, void *rec, + int header_size, int maxlen) + { + struct probe_arg *arg; +@@ -205,12 +205,14 @@ store_trace_args(void *data, struct trace_probe *tp, struct pt_regs *regs, + /* Point the dynamic data area if needed */ + if (unlikely(arg->dynamic)) + *dl = make_data_loc(maxlen, dyndata - base); +- ret = process_fetch_insn(arg->code, regs, dl, base); +- if (unlikely(ret < 0 && arg->dynamic)) { +- *dl = make_data_loc(0, dyndata - base); +- } else { +- dyndata += ret; +- maxlen -= ret; ++ ret = process_fetch_insn(arg->code, rec, dl, base); ++ if (arg->dynamic) { ++ if (unlikely(ret < 0)) { ++ *dl = make_data_loc(0, dyndata - base); ++ } else { ++ dyndata += ret; ++ maxlen -= ret; ++ } + } + } + } +diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c +index 617e297f46dcc..7b2d8f776ae25 100644 +--- a/kernel/trace/trace_sched_wakeup.c ++++ b/kernel/trace/trace_sched_wakeup.c +@@ -171,6 +171,8 @@ static void wakeup_trace_open(struct trace_iterator *iter) + { + if (is_graph(iter->tr)) + graph_trace_open(iter); ++ else ++ iter->private = NULL; + } + + static void wakeup_trace_close(struct trace_iterator *iter) +diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c +index efb51a23a14f2..1a566bc675485 100644 +--- a/kernel/trace/trace_uprobe.c ++++ b/kernel/trace/trace_uprobe.c +@@ -217,9 +217,10 @@ static unsigned long translate_user_vaddr(unsigned long file_offset) + + /* Note that we don't verify it, since the code does not come from user space */ + static int +-process_fetch_insn(struct fetch_insn *code, struct pt_regs *regs, void *dest, ++process_fetch_insn(struct fetch_insn *code, void *rec, void *dest, + void *base) + { ++ struct pt_regs *regs = rec; + unsigned long val; + + /* 1st stage: get value from context */ +diff --git a/lib/clz_ctz.c b/lib/clz_ctz.c +index 0d3a686b5ba29..fb8c0c5c2bd27 100644 +--- a/lib/clz_ctz.c ++++ b/lib/clz_ctz.c +@@ -28,36 +28,16 @@ int __weak __clzsi2(int val) + } + EXPORT_SYMBOL(__clzsi2); + +-int __weak __clzdi2(long val); +-int __weak __ctzdi2(long val); +-#if BITS_PER_LONG == 32 +- +-int __weak __clzdi2(long val) ++int __weak __clzdi2(u64 val); ++int __weak __clzdi2(u64 val) + { +- return 32 - fls((int)val); ++ return 64 - fls64(val); + } + EXPORT_SYMBOL(__clzdi2); + +-int __weak __ctzdi2(long val) ++int __weak __ctzdi2(u64 val); ++int __weak __ctzdi2(u64 val) + { +- return __ffs((u32)val); ++ return __ffs64(val); + } + EXPORT_SYMBOL(__ctzdi2); +- +-#elif BITS_PER_LONG == 64 +- +-int __weak __clzdi2(long val) +-{ +- return 64 - fls64((u64)val); +-} +-EXPORT_SYMBOL(__clzdi2); +- +-int __weak __ctzdi2(long val) +-{ +- return __ffs64((u64)val); +-} +-EXPORT_SYMBOL(__ctzdi2); +- +-#else +-#error BITS_PER_LONG not 32 or 64 +-#endif +diff --git a/lib/radix-tree.c b/lib/radix-tree.c +index 18349781847ca..4121aab98b06e 100644 +--- a/lib/radix-tree.c ++++ b/lib/radix-tree.c +@@ -1144,7 +1144,6 @@ static void set_iter_tags(struct radix_tree_iter *iter, + void __rcu **radix_tree_iter_resume(void __rcu **slot, + struct radix_tree_iter *iter) + { +- slot++; + iter->index = __radix_tree_iter_add(iter, 1); + iter->next_index = iter->index; + iter->tags = 0; +diff --git a/mm/filemap.c b/mm/filemap.c +index adc27af737c64..f1ed0400c37c3 100644 +--- a/mm/filemap.c ++++ b/mm/filemap.c +@@ -1044,9 +1044,43 @@ struct wait_page_queue { + wait_queue_entry_t wait; + }; + ++/* ++ * The page wait code treats the "wait->flags" somewhat unusually, because ++ * we have multiple different kinds of waits, not just he usual "exclusive" ++ * one. ++ * ++ * We have: ++ * ++ * (a) no special bits set: ++ * ++ * We're just waiting for the bit to be released, and when a waker ++ * calls the wakeup function, we set WQ_FLAG_WOKEN and wake it up, ++ * and remove it from the wait queue. ++ * ++ * Simple and straightforward. ++ * ++ * (b) WQ_FLAG_EXCLUSIVE: ++ * ++ * The waiter is waiting to get the lock, and only one waiter should ++ * be woken up to avoid any thundering herd behavior. We'll set the ++ * WQ_FLAG_WOKEN bit, wake it up, and remove it from the wait queue. ++ * ++ * This is the traditional exclusive wait. ++ * ++ * (b) WQ_FLAG_EXCLUSIVE | WQ_FLAG_CUSTOM: ++ * ++ * The waiter is waiting to get the bit, and additionally wants the ++ * lock to be transferred to it for fair lock behavior. If the lock ++ * cannot be taken, we stop walking the wait queue without waking ++ * the waiter. ++ * ++ * This is the "fair lock handoff" case, and in addition to setting ++ * WQ_FLAG_WOKEN, we set WQ_FLAG_DONE to let the waiter easily see ++ * that it now has the lock. ++ */ + static int wake_page_function(wait_queue_entry_t *wait, unsigned mode, int sync, void *arg) + { +- int ret; ++ unsigned int flags; + struct wait_page_key *key = arg; + struct wait_page_queue *wait_page + = container_of(wait, struct wait_page_queue, wait); +@@ -1059,35 +1093,44 @@ static int wake_page_function(wait_queue_entry_t *wait, unsigned mode, int sync, + return 0; + + /* +- * If it's an exclusive wait, we get the bit for it, and +- * stop walking if we can't. +- * +- * If it's a non-exclusive wait, then the fact that this +- * wake function was called means that the bit already +- * was cleared, and we don't care if somebody then +- * re-took it. ++ * If it's a lock handoff wait, we get the bit for it, and ++ * stop walking (and do not wake it up) if we can't. + */ +- ret = 0; +- if (wait->flags & WQ_FLAG_EXCLUSIVE) { +- if (test_and_set_bit(key->bit_nr, &key->page->flags)) ++ flags = wait->flags; ++ if (flags & WQ_FLAG_EXCLUSIVE) { ++ if (test_bit(key->bit_nr, &key->page->flags)) + return -1; +- ret = 1; ++ if (flags & WQ_FLAG_CUSTOM) { ++ if (test_and_set_bit(key->bit_nr, &key->page->flags)) ++ return -1; ++ flags |= WQ_FLAG_DONE; ++ } + } +- wait->flags |= WQ_FLAG_WOKEN; + ++ /* ++ * We are holding the wait-queue lock, but the waiter that ++ * is waiting for this will be checking the flags without ++ * any locking. ++ * ++ * So update the flags atomically, and wake up the waiter ++ * afterwards to avoid any races. This store-release pairs ++ * with the load-acquire in wait_on_page_bit_common(). ++ */ ++ smp_store_release(&wait->flags, flags | WQ_FLAG_WOKEN); + wake_up_state(wait->private, mode); + + /* + * Ok, we have successfully done what we're waiting for, + * and we can unconditionally remove the wait entry. + * +- * Note that this has to be the absolute last thing we do, +- * since after list_del_init(&wait->entry) the wait entry ++ * Note that this pairs with the "finish_wait()" in the ++ * waiter, and has to be the absolute last thing we do. ++ * After this list_del_init(&wait->entry) the wait entry + * might be de-allocated and the process might even have + * exited. + */ + list_del_init_careful(&wait->entry); +- return ret; ++ return (flags & WQ_FLAG_EXCLUSIVE) != 0; + } + + static void wake_up_page_bit(struct page *page, int bit_nr) +@@ -1167,8 +1210,8 @@ enum behavior { + }; + + /* +- * Attempt to check (or get) the page bit, and mark the +- * waiter woken if successful. ++ * Attempt to check (or get) the page bit, and mark us done ++ * if successful. + */ + static inline bool trylock_page_bit_common(struct page *page, int bit_nr, + struct wait_queue_entry *wait) +@@ -1179,13 +1222,17 @@ static inline bool trylock_page_bit_common(struct page *page, int bit_nr, + } else if (test_bit(bit_nr, &page->flags)) + return false; + +- wait->flags |= WQ_FLAG_WOKEN; ++ wait->flags |= WQ_FLAG_WOKEN | WQ_FLAG_DONE; + return true; + } + ++/* How many times do we accept lock stealing from under a waiter? */ ++int sysctl_page_lock_unfairness = 5; ++ + static inline int wait_on_page_bit_common(wait_queue_head_t *q, + struct page *page, int bit_nr, int state, enum behavior behavior) + { ++ int unfairness = sysctl_page_lock_unfairness; + struct wait_page_queue wait_page; + wait_queue_entry_t *wait = &wait_page.wait; + bool thrashing = false; +@@ -1203,11 +1250,18 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q, + } + + init_wait(wait); +- wait->flags = behavior == EXCLUSIVE ? WQ_FLAG_EXCLUSIVE : 0; + wait->func = wake_page_function; + wait_page.page = page; + wait_page.bit_nr = bit_nr; + ++repeat: ++ wait->flags = 0; ++ if (behavior == EXCLUSIVE) { ++ wait->flags = WQ_FLAG_EXCLUSIVE; ++ if (--unfairness < 0) ++ wait->flags |= WQ_FLAG_CUSTOM; ++ } ++ + /* + * Do one last check whether we can get the + * page bit synchronously. +@@ -1230,27 +1284,63 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q, + + /* + * From now on, all the logic will be based on +- * the WQ_FLAG_WOKEN flag, and the and the page +- * bit testing (and setting) will be - or has +- * already been - done by the wake function. ++ * the WQ_FLAG_WOKEN and WQ_FLAG_DONE flag, to ++ * see whether the page bit testing has already ++ * been done by the wake function. + * + * We can drop our reference to the page. + */ + if (behavior == DROP) + put_page(page); + ++ /* ++ * Note that until the "finish_wait()", or until ++ * we see the WQ_FLAG_WOKEN flag, we need to ++ * be very careful with the 'wait->flags', because ++ * we may race with a waker that sets them. ++ */ + for (;;) { ++ unsigned int flags; ++ + set_current_state(state); + +- if (signal_pending_state(state, current)) ++ /* Loop until we've been woken or interrupted */ ++ flags = smp_load_acquire(&wait->flags); ++ if (!(flags & WQ_FLAG_WOKEN)) { ++ if (signal_pending_state(state, current)) ++ break; ++ ++ io_schedule(); ++ continue; ++ } ++ ++ /* If we were non-exclusive, we're done */ ++ if (behavior != EXCLUSIVE) + break; + +- if (wait->flags & WQ_FLAG_WOKEN) ++ /* If the waker got the lock for us, we're done */ ++ if (flags & WQ_FLAG_DONE) + break; + +- io_schedule(); ++ /* ++ * Otherwise, if we're getting the lock, we need to ++ * try to get it ourselves. ++ * ++ * And if that fails, we'll have to retry this all. ++ */ ++ if (unlikely(test_and_set_bit(bit_nr, &page->flags))) ++ goto repeat; ++ ++ wait->flags |= WQ_FLAG_DONE; ++ break; + } + ++ /* ++ * If a signal happened, this 'finish_wait()' may remove the last ++ * waiter from the wait-queues, but the PageWaiters bit will remain ++ * set. That's ok. The next wakeup will take care of it, and trying ++ * to do it here would be difficult and prone to races. ++ */ + finish_wait(q, wait); + + if (thrashing) { +@@ -1260,12 +1350,20 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q, + } + + /* +- * A signal could leave PageWaiters set. Clearing it here if +- * !waitqueue_active would be possible (by open-coding finish_wait), +- * but still fail to catch it in the case of wait hash collision. We +- * already can fail to clear wait hash collision cases, so don't +- * bother with signals either. ++ * NOTE! The wait->flags weren't stable until we've done the ++ * 'finish_wait()', and we could have exited the loop above due ++ * to a signal, and had a wakeup event happen after the signal ++ * test but before the 'finish_wait()'. ++ * ++ * So only after the finish_wait() can we reliably determine ++ * if we got woken up or not, so we can now figure out the final ++ * return value based on that state without races. ++ * ++ * Also note that WQ_FLAG_WOKEN is sufficient for a non-exclusive ++ * waiter, but an exclusive one requires WQ_FLAG_DONE. + */ ++ if (behavior == EXCLUSIVE) ++ return wait->flags & WQ_FLAG_DONE ? 0 : -EINTR; + + return wait->flags & WQ_FLAG_WOKEN ? 0 : -EINTR; + } +diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c +index a39af0eefad31..aae73f94b2c8e 100644 +--- a/net/batman-adv/bat_v_elp.c ++++ b/net/batman-adv/bat_v_elp.c +@@ -501,7 +501,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb, + struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface); + struct batadv_elp_packet *elp_packet; + struct batadv_hard_iface *primary_if; +- struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb); ++ struct ethhdr *ethhdr; + bool res; + int ret = NET_RX_DROP; + +@@ -509,6 +509,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb, + if (!res) + goto free_skb; + ++ ethhdr = eth_hdr(skb); + if (batadv_is_my_mac(bat_priv, ethhdr->h_source)) + goto free_skb; + +diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c +index 3165f6ff8ee71..f13a779b86563 100644 +--- a/net/batman-adv/bat_v_ogm.c ++++ b/net/batman-adv/bat_v_ogm.c +@@ -122,8 +122,10 @@ static void batadv_v_ogm_send_to_if(struct sk_buff *skb, + { + struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); + +- if (hard_iface->if_status != BATADV_IF_ACTIVE) ++ if (hard_iface->if_status != BATADV_IF_ACTIVE) { ++ kfree_skb(skb); + return; ++ } + + batadv_inc_counter(bat_priv, BATADV_CNT_MGMT_TX); + batadv_add_counter(bat_priv, BATADV_CNT_MGMT_TX_BYTES, +@@ -994,7 +996,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb, + { + struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface); + struct batadv_ogm2_packet *ogm_packet; +- struct ethhdr *ethhdr = eth_hdr(skb); ++ struct ethhdr *ethhdr; + int ogm_offset; + u8 *packet_pos; + int ret = NET_RX_DROP; +@@ -1008,6 +1010,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb, + if (!batadv_check_management_packet(skb, if_incoming, BATADV_OGM2_HLEN)) + goto free_skb; + ++ ethhdr = eth_hdr(skb); + if (batadv_is_my_mac(bat_priv, ethhdr->h_source)) + goto free_skb; + +diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c +index 5f44c94ad707b..073019f2e4519 100644 +--- a/net/batman-adv/hard-interface.c ++++ b/net/batman-adv/hard-interface.c +@@ -632,7 +632,19 @@ out: + */ + void batadv_update_min_mtu(struct net_device *soft_iface) + { +- soft_iface->mtu = batadv_hardif_min_mtu(soft_iface); ++ struct batadv_priv *bat_priv = netdev_priv(soft_iface); ++ int limit_mtu; ++ int mtu; ++ ++ mtu = batadv_hardif_min_mtu(soft_iface); ++ ++ if (bat_priv->mtu_set_by_user) ++ limit_mtu = bat_priv->mtu_set_by_user; ++ else ++ limit_mtu = ETH_DATA_LEN; ++ ++ mtu = min(mtu, limit_mtu); ++ dev_set_mtu(soft_iface, mtu); + + /* Check if the local translate table should be cleaned up to match a + * new (and smaller) MTU. +diff --git a/net/batman-adv/netlink.c b/net/batman-adv/netlink.c +index e59c5aa27ee0b..f3e102a1201bc 100644 +--- a/net/batman-adv/netlink.c ++++ b/net/batman-adv/netlink.c +@@ -496,7 +496,10 @@ static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info) + attr = info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED]; + + atomic_set(&bat_priv->fragmentation, !!nla_get_u8(attr)); ++ ++ rtnl_lock(); + batadv_update_min_mtu(bat_priv->soft_iface); ++ rtnl_unlock(); + } + + if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN]) { +diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c +index 504e3cb67bed4..bd06d5b5314e6 100644 +--- a/net/batman-adv/soft-interface.c ++++ b/net/batman-adv/soft-interface.c +@@ -156,11 +156,14 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) + + static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) + { ++ struct batadv_priv *bat_priv = netdev_priv(dev); ++ + /* check ranges */ + if (new_mtu < 68 || new_mtu > batadv_hardif_min_mtu(dev)) + return -EINVAL; + + dev->mtu = new_mtu; ++ bat_priv->mtu_set_by_user = new_mtu; + + return 0; + } +diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c +index 515205d7b650f..a01b0277bdb17 100644 +--- a/net/batman-adv/translation-table.c ++++ b/net/batman-adv/translation-table.c +@@ -780,7 +780,6 @@ check_roaming: + if (roamed_back) { + batadv_tt_global_free(bat_priv, tt_global, + "Roaming canceled"); +- tt_global = NULL; + } else { + /* The global entry has to be marked as ROAMING and + * has to be kept for consistency purpose +diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h +index 4d7f1baee7b7d..9fdf1be9b99b6 100644 +--- a/net/batman-adv/types.h ++++ b/net/batman-adv/types.h +@@ -1563,6 +1563,12 @@ struct batadv_priv { + /** @soft_iface: net device which holds this struct as private data */ + struct net_device *soft_iface; + ++ /** ++ * @mtu_set_by_user: MTU was set once by user ++ * protected by rtnl_lock ++ */ ++ int mtu_set_by_user; ++ + /** + * @bat_counters: mesh internal traffic statistic counters (see + * batadv_counters) +diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c +index e56863587ea2e..61bf489265505 100644 +--- a/net/bluetooth/l2cap_core.c ++++ b/net/bluetooth/l2cap_core.c +@@ -5723,9 +5723,14 @@ static inline int l2cap_le_command_rej(struct l2cap_conn *conn, + if (!chan) + goto done; + ++ chan = l2cap_chan_hold_unless_zero(chan); ++ if (!chan) ++ goto done; ++ + l2cap_chan_lock(chan); + l2cap_chan_del(chan, ECONNREFUSED); + l2cap_chan_unlock(chan); ++ l2cap_chan_put(chan); + + done: + mutex_unlock(&conn->chan_lock); +diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c +index 3eaf7c706b0ec..bb1a273840775 100644 +--- a/net/core/rtnetlink.c ++++ b/net/core/rtnetlink.c +@@ -2034,13 +2034,27 @@ out_err: + return err; + } + +-int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len, +- struct netlink_ext_ack *exterr) ++int rtnl_nla_parse_ifinfomsg(struct nlattr **tb, const struct nlattr *nla_peer, ++ struct netlink_ext_ack *exterr) + { +- return nla_parse_deprecated(tb, IFLA_MAX, head, len, ifla_policy, ++ const struct ifinfomsg *ifmp; ++ const struct nlattr *attrs; ++ size_t len; ++ ++ ifmp = nla_data(nla_peer); ++ attrs = nla_data(nla_peer) + sizeof(struct ifinfomsg); ++ len = nla_len(nla_peer) - sizeof(struct ifinfomsg); ++ ++ if (ifmp->ifi_index < 0) { ++ NL_SET_ERR_MSG_ATTR(exterr, nla_peer, ++ "ifindex can't be negative"); ++ return -EINVAL; ++ } ++ ++ return nla_parse_deprecated(tb, IFLA_MAX, attrs, len, ifla_policy, + exterr); + } +-EXPORT_SYMBOL(rtnl_nla_parse_ifla); ++EXPORT_SYMBOL(rtnl_nla_parse_ifinfomsg); + + struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]) + { +@@ -3062,9 +3076,12 @@ replay: + ifname[0] = '\0'; + + ifm = nlmsg_data(nlh); +- if (ifm->ifi_index > 0) ++ if (ifm->ifi_index > 0) { + dev = __dev_get_by_index(net, ifm->ifi_index); +- else { ++ } else if (ifm->ifi_index < 0) { ++ NL_SET_ERR_MSG(extack, "ifindex can't be negative"); ++ return -EINVAL; ++ } else { + if (ifname[0]) + dev = __dev_get_by_name(net, ifname); + else +diff --git a/net/core/sock.c b/net/core/sock.c +index 636427d400d7f..69b4158a29f74 100644 +--- a/net/core/sock.c ++++ b/net/core/sock.c +@@ -2631,7 +2631,7 @@ void __sk_mem_reduce_allocated(struct sock *sk, int amount) + if (mem_cgroup_sockets_enabled && sk->sk_memcg) + mem_cgroup_uncharge_skmem(sk->sk_memcg, amount); + +- if (sk_under_memory_pressure(sk) && ++ if (sk_under_global_memory_pressure(sk) && + (sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0))) + sk_leave_memory_pressure(sk); + } +diff --git a/net/dccp/proto.c b/net/dccp/proto.c +index cd868556452ec..491b148afa8f0 100644 +--- a/net/dccp/proto.c ++++ b/net/dccp/proto.c +@@ -324,11 +324,15 @@ EXPORT_SYMBOL_GPL(dccp_disconnect); + __poll_t dccp_poll(struct file *file, struct socket *sock, + poll_table *wait) + { +- __poll_t mask; + struct sock *sk = sock->sk; ++ __poll_t mask; ++ u8 shutdown; ++ int state; + + sock_poll_wait(file, sock, wait); +- if (sk->sk_state == DCCP_LISTEN) ++ ++ state = inet_sk_state_load(sk); ++ if (state == DCCP_LISTEN) + return inet_csk_listen_poll(sk); + + /* Socket is not locked. We are protected from async events +@@ -337,20 +341,21 @@ __poll_t dccp_poll(struct file *file, struct socket *sock, + */ + + mask = 0; +- if (sk->sk_err) ++ if (READ_ONCE(sk->sk_err)) + mask = EPOLLERR; ++ shutdown = READ_ONCE(sk->sk_shutdown); + +- if (sk->sk_shutdown == SHUTDOWN_MASK || sk->sk_state == DCCP_CLOSED) ++ if (shutdown == SHUTDOWN_MASK || state == DCCP_CLOSED) + mask |= EPOLLHUP; +- if (sk->sk_shutdown & RCV_SHUTDOWN) ++ if (shutdown & RCV_SHUTDOWN) + mask |= EPOLLIN | EPOLLRDNORM | EPOLLRDHUP; + + /* Connected? */ +- if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) { ++ if ((1 << state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) { + if (atomic_read(&sk->sk_rmem_alloc) > 0) + mask |= EPOLLIN | EPOLLRDNORM; + +- if (!(sk->sk_shutdown & SEND_SHUTDOWN)) { ++ if (!(shutdown & SEND_SHUTDOWN)) { + if (sk_stream_is_writeable(sk)) { + mask |= EPOLLOUT | EPOLLWRNORM; + } else { /* send SIGIO later */ +@@ -368,7 +373,6 @@ __poll_t dccp_poll(struct file *file, struct socket *sock, + } + return mask; + } +- + EXPORT_SYMBOL_GPL(dccp_poll); + + int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg) +diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c +index bd41354ed8c11..275f2ecf0ba60 100644 +--- a/net/ipv4/ip_vti.c ++++ b/net/ipv4/ip_vti.c +@@ -314,12 +314,12 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) + + switch (skb->protocol) { + case htons(ETH_P_IP): +- xfrm_decode_session(skb, &fl, AF_INET); + memset(IPCB(skb), 0, sizeof(*IPCB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET); + break; + case htons(ETH_P_IPV6): +- xfrm_decode_session(skb, &fl, AF_INET6); + memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET6); + break; + default: + goto tx_err; +diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c +index a0107eb02ae4c..551c4a78f68d4 100644 +--- a/net/ipv4/tcp_timer.c ++++ b/net/ipv4/tcp_timer.c +@@ -573,7 +573,9 @@ out_reset_timer: + tcp_stream_is_thin(tp) && + icsk->icsk_retransmits <= TCP_THIN_LINEAR_RETRIES) { + icsk->icsk_backoff = 0; +- icsk->icsk_rto = min(__tcp_set_rto(tp), TCP_RTO_MAX); ++ icsk->icsk_rto = clamp(__tcp_set_rto(tp), ++ tcp_rto_min(sk), ++ TCP_RTO_MAX); + } else { + /* Use normal (exponential) backoff */ + icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX); +diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c +index 8b44d3b53844e..e4cd6909e9bbc 100644 +--- a/net/ipv6/ip6_vti.c ++++ b/net/ipv6/ip6_vti.c +@@ -558,12 +558,12 @@ vti6_tnl_xmit(struct sk_buff *skb, struct net_device *dev) + vti6_addr_conflict(t, ipv6_hdr(skb))) + goto tx_err; + +- xfrm_decode_session(skb, &fl, AF_INET6); + memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET6); + break; + case htons(ETH_P_IP): +- xfrm_decode_session(skb, &fl, AF_INET); + memset(IPCB(skb), 0, sizeof(*IPCB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET); + break; + default: + goto tx_err; +diff --git a/net/key/af_key.c b/net/key/af_key.c +index 1a33c46d9c894..ce844919b2eb3 100644 +--- a/net/key/af_key.c ++++ b/net/key/af_key.c +@@ -1852,9 +1852,9 @@ static int pfkey_dump(struct sock *sk, struct sk_buff *skb, const struct sadb_ms + if (ext_hdrs[SADB_X_EXT_FILTER - 1]) { + struct sadb_x_filter *xfilter = ext_hdrs[SADB_X_EXT_FILTER - 1]; + +- if ((xfilter->sadb_x_filter_splen >= ++ if ((xfilter->sadb_x_filter_splen > + (sizeof(xfrm_address_t) << 3)) || +- (xfilter->sadb_x_filter_dplen >= ++ (xfilter->sadb_x_filter_dplen > + (sizeof(xfrm_address_t) << 3))) { + mutex_unlock(&pfk->dump_lock); + return -EINVAL; +diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c +index 9bd12f7517ed5..6710f6b8764be 100644 +--- a/net/ncsi/ncsi-manage.c ++++ b/net/ncsi/ncsi-manage.c +@@ -770,9 +770,6 @@ static int ncsi_gma_handler(struct ncsi_cmd_arg *nca, unsigned int mf_id) + return -1; + } + +- /* Set the flag for GMA command which should only be called once */ +- nca->ndp->gma_flag = 1; +- + /* Get Mac address from NCSI device */ + return nch->handler(nca); + } +diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c +index 7c893c3799202..e1c6bb4ab98fd 100644 +--- a/net/ncsi/ncsi-rsp.c ++++ b/net/ncsi/ncsi-rsp.c +@@ -627,6 +627,9 @@ static int ncsi_rsp_handler_oem_mlx_gma(struct ncsi_request *nr) + saddr.sa_family = ndev->type; + ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; + memcpy(saddr.sa_data, &rsp->data[MLX_MAC_ADDR_OFFSET], ETH_ALEN); ++ /* Set the flag for GMA command which should only be called once */ ++ ndp->gma_flag = 1; ++ + ret = ops->ndo_set_mac_address(ndev, &saddr); + if (ret < 0) + netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n"); +@@ -671,6 +674,9 @@ static int ncsi_rsp_handler_oem_bcm_gma(struct ncsi_request *nr) + if (!is_valid_ether_addr((const u8 *)saddr.sa_data)) + return -ENXIO; + ++ /* Set the flag for GMA command which should only be called once */ ++ ndp->gma_flag = 1; ++ + ret = ops->ndo_set_mac_address(ndev, &saddr); + if (ret < 0) + netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n"); +diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c +index 07242503d74d3..2bc82dabfe3b8 100644 +--- a/net/netfilter/ipvs/ip_vs_ctl.c ++++ b/net/netfilter/ipvs/ip_vs_ctl.c +@@ -1759,6 +1759,7 @@ static int + proc_do_sync_threshold(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) + { ++ struct netns_ipvs *ipvs = table->extra2; + int *valp = table->data; + int val[2]; + int rc; +@@ -1768,6 +1769,7 @@ proc_do_sync_threshold(struct ctl_table *table, int write, + .mode = table->mode, + }; + ++ mutex_lock(&ipvs->sync_mutex); + memcpy(val, valp, sizeof(val)); + rc = proc_dointvec(&tmp, write, buffer, lenp, ppos); + if (write) { +@@ -1777,6 +1779,7 @@ proc_do_sync_threshold(struct ctl_table *table, int write, + else + memcpy(valp, val, sizeof(val)); + } ++ mutex_unlock(&ipvs->sync_mutex); + return rc; + } + +@@ -4034,6 +4037,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs) + ipvs->sysctl_sync_threshold[0] = DEFAULT_SYNC_THRESHOLD; + ipvs->sysctl_sync_threshold[1] = DEFAULT_SYNC_PERIOD; + tbl[idx].data = &ipvs->sysctl_sync_threshold; ++ tbl[idx].extra2 = ipvs; + tbl[idx++].maxlen = sizeof(ipvs->sysctl_sync_threshold); + ipvs->sysctl_sync_refresh_period = DEFAULT_SYNC_REFRESH_PERIOD; + tbl[idx++].data = &ipvs->sysctl_sync_refresh_period; +diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c +index cec4b16170a0b..21cbaf6dac331 100644 +--- a/net/netfilter/nf_conntrack_proto_sctp.c ++++ b/net/netfilter/nf_conntrack_proto_sctp.c +@@ -49,8 +49,8 @@ static const unsigned int sctp_timeouts[SCTP_CONNTRACK_MAX] = { + [SCTP_CONNTRACK_COOKIE_WAIT] = 3 SECS, + [SCTP_CONNTRACK_COOKIE_ECHOED] = 3 SECS, + [SCTP_CONNTRACK_ESTABLISHED] = 210 SECS, +- [SCTP_CONNTRACK_SHUTDOWN_SENT] = 300 SECS / 1000, +- [SCTP_CONNTRACK_SHUTDOWN_RECD] = 300 SECS / 1000, ++ [SCTP_CONNTRACK_SHUTDOWN_SENT] = 3 SECS, ++ [SCTP_CONNTRACK_SHUTDOWN_RECD] = 3 SECS, + [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = 3 SECS, + [SCTP_CONNTRACK_HEARTBEAT_SENT] = 30 SECS, + }; +@@ -105,7 +105,7 @@ static const u8 sctp_conntracks[2][11][SCTP_CONNTRACK_MAX] = { + { + /* ORIGINAL */ + /* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA, sHS */ +-/* init */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA, sCW}, ++/* init */ {sCL, sCL, sCW, sCE, sES, sCL, sCL, sSA, sCW}, + /* init_ack */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA, sCL}, + /* abort */ {sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL}, + /* shutdown */ {sCL, sCL, sCW, sCE, sSS, sSS, sSR, sSA, sCL}, +diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c +index 8aca2fdc0664c..e0c17217817d6 100644 +--- a/net/netfilter/nft_dynset.c ++++ b/net/netfilter/nft_dynset.c +@@ -161,6 +161,9 @@ static int nft_dynset_init(const struct nft_ctx *ctx, + if (IS_ERR(set)) + return PTR_ERR(set); + ++ if (set->flags & NFT_SET_OBJECT) ++ return -EOPNOTSUPP; ++ + if (set->ops->update == NULL) + return -EOPNOTSUPP; + +diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c +index 6ca0cba8aad16..d07146a2d0bba 100644 +--- a/net/sched/sch_api.c ++++ b/net/sched/sch_api.c +@@ -1503,10 +1503,28 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, + return 0; + } + ++static bool req_create_or_replace(struct nlmsghdr *n) ++{ ++ return (n->nlmsg_flags & NLM_F_CREATE && ++ n->nlmsg_flags & NLM_F_REPLACE); ++} ++ ++static bool req_create_exclusive(struct nlmsghdr *n) ++{ ++ return (n->nlmsg_flags & NLM_F_CREATE && ++ n->nlmsg_flags & NLM_F_EXCL); ++} ++ ++static bool req_change(struct nlmsghdr *n) ++{ ++ return (!(n->nlmsg_flags & NLM_F_CREATE) && ++ !(n->nlmsg_flags & NLM_F_REPLACE) && ++ !(n->nlmsg_flags & NLM_F_EXCL)); ++} ++ + /* + * Create/change qdisc. + */ +- + static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, + struct netlink_ext_ack *extack) + { +@@ -1603,27 +1621,35 @@ replay: + * + * We know, that some child q is already + * attached to this parent and have choice: +- * either to change it or to create/graft new one. ++ * 1) change it or 2) create/graft new one. ++ * If the requested qdisc kind is different ++ * than the existing one, then we choose graft. ++ * If they are the same then this is "change" ++ * operation - just let it fallthrough.. + * + * 1. We are allowed to create/graft only +- * if CREATE and REPLACE flags are set. ++ * if the request is explicitly stating ++ * "please create if it doesn't exist". + * +- * 2. If EXCL is set, requestor wanted to say, +- * that qdisc tcm_handle is not expected ++ * 2. If the request is to exclusive create ++ * then the qdisc tcm_handle is not expected + * to exist, so that we choose create/graft too. + * + * 3. The last case is when no flags are set. ++ * This will happen when for example tc ++ * utility issues a "change" command. + * Alas, it is sort of hole in API, we + * cannot decide what to do unambiguously. +- * For now we select create/graft, if +- * user gave KIND, which does not match existing. ++ * For now we select create/graft. + */ +- if ((n->nlmsg_flags & NLM_F_CREATE) && +- (n->nlmsg_flags & NLM_F_REPLACE) && +- ((n->nlmsg_flags & NLM_F_EXCL) || +- (tca[TCA_KIND] && +- nla_strcmp(tca[TCA_KIND], q->ops->id)))) +- goto create_n_graft; ++ if (tca[TCA_KIND] && ++ nla_strcmp(tca[TCA_KIND], q->ops->id)) { ++ if (req_create_or_replace(n) || ++ req_create_exclusive(n)) ++ goto create_n_graft; ++ else if (req_change(n)) ++ goto create_n_graft2; ++ } + } + } + } else { +@@ -1657,6 +1683,7 @@ create_n_graft: + NL_SET_ERR_MSG(extack, "Qdisc not found. To create specify NLM_F_CREATE flag"); + return -ENOENT; + } ++create_n_graft2: + if (clid == TC_H_INGRESS) { + if (dev_ingress_queue(dev)) { + q = qdisc_create(dev, dev_ingress_queue(dev), p, +diff --git a/net/sctp/socket.c b/net/sctp/socket.c +index 7cff1a031f761..431b9399a781f 100644 +--- a/net/sctp/socket.c ++++ b/net/sctp/socket.c +@@ -97,7 +97,7 @@ struct percpu_counter sctp_sockets_allocated; + + static void sctp_enter_memory_pressure(struct sock *sk) + { +- sctp_memory_pressure = 1; ++ WRITE_ONCE(sctp_memory_pressure, 1); + } + + +diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c +index f966b64d2939a..baf0af49c5bd4 100644 +--- a/net/unix/af_unix.c ++++ b/net/unix/af_unix.c +@@ -1979,6 +1979,7 @@ static ssize_t unix_stream_sendpage(struct socket *socket, struct page *page, + + if (false) { + alloc_skb: ++ spin_unlock(&other->sk_receive_queue.lock); + unix_state_unlock(other); + mutex_unlock(&unix_sk(other)->iolock); + newskb = sock_alloc_send_pskb(sk, 0, 0, flags & MSG_DONTWAIT, +@@ -2018,6 +2019,7 @@ alloc_skb: + init_scm = false; + } + ++ spin_lock(&other->sk_receive_queue.lock); + skb = skb_peek_tail(&other->sk_receive_queue); + if (tail && tail == skb) { + skb = newskb; +@@ -2048,14 +2050,11 @@ alloc_skb: + refcount_add(size, &sk->sk_wmem_alloc); + + if (newskb) { +- err = unix_scm_to_skb(&scm, skb, false); +- if (err) +- goto err_state_unlock; +- spin_lock(&other->sk_receive_queue.lock); ++ unix_scm_to_skb(&scm, skb, false); + __skb_queue_tail(&other->sk_receive_queue, newskb); +- spin_unlock(&other->sk_receive_queue.lock); + } + ++ spin_unlock(&other->sk_receive_queue.lock); + unix_state_unlock(other); + mutex_unlock(&unix_sk(other)->iolock); + +diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile +index fbc4552d17b85..6e5e307f985e4 100644 +--- a/net/xfrm/Makefile ++++ b/net/xfrm/Makefile +@@ -3,6 +3,8 @@ + # Makefile for the XFRM subsystem. + # + ++xfrm_interface-$(CONFIG_XFRM_INTERFACE) += xfrm_interface_core.o ++ + obj-$(CONFIG_XFRM) := xfrm_policy.o xfrm_state.o xfrm_hash.o \ + xfrm_input.o xfrm_output.o \ + xfrm_sysctl.o xfrm_replay.o xfrm_device.o +diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c +deleted file mode 100644 +index 4cfa79e04e3d1..0000000000000 +--- a/net/xfrm/xfrm_interface.c ++++ /dev/null +@@ -1,987 +0,0 @@ +-// SPDX-License-Identifier: GPL-2.0 +-/* +- * XFRM virtual interface +- * +- * Copyright (C) 2018 secunet Security Networks AG +- * +- * Author: +- * Steffen Klassert <steffen.klassert@secunet.com> +- */ +- +-#include <linux/module.h> +-#include <linux/capability.h> +-#include <linux/errno.h> +-#include <linux/types.h> +-#include <linux/sockios.h> +-#include <linux/icmp.h> +-#include <linux/if.h> +-#include <linux/in.h> +-#include <linux/ip.h> +-#include <linux/net.h> +-#include <linux/in6.h> +-#include <linux/netdevice.h> +-#include <linux/if_link.h> +-#include <linux/if_arp.h> +-#include <linux/icmpv6.h> +-#include <linux/init.h> +-#include <linux/route.h> +-#include <linux/rtnetlink.h> +-#include <linux/netfilter_ipv6.h> +-#include <linux/slab.h> +-#include <linux/hash.h> +- +-#include <linux/uaccess.h> +-#include <linux/atomic.h> +- +-#include <net/icmp.h> +-#include <net/ip.h> +-#include <net/ipv6.h> +-#include <net/ip6_route.h> +-#include <net/addrconf.h> +-#include <net/xfrm.h> +-#include <net/net_namespace.h> +-#include <net/netns/generic.h> +-#include <linux/etherdevice.h> +- +-static int xfrmi_dev_init(struct net_device *dev); +-static void xfrmi_dev_setup(struct net_device *dev); +-static struct rtnl_link_ops xfrmi_link_ops __read_mostly; +-static unsigned int xfrmi_net_id __read_mostly; +- +-struct xfrmi_net { +- /* lists for storing interfaces in use */ +- struct xfrm_if __rcu *xfrmi[1]; +-}; +- +-#define for_each_xfrmi_rcu(start, xi) \ +- for (xi = rcu_dereference(start); xi; xi = rcu_dereference(xi->next)) +- +-static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x) +-{ +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- struct xfrm_if *xi; +- +- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) { +- if (x->if_id == xi->p.if_id && +- (xi->dev->flags & IFF_UP)) +- return xi; +- } +- +- return NULL; +-} +- +-static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb, +- unsigned short family) +-{ +- struct xfrmi_net *xfrmn; +- struct xfrm_if *xi; +- int ifindex = 0; +- +- if (!secpath_exists(skb) || !skb->dev) +- return NULL; +- +- switch (family) { +- case AF_INET6: +- ifindex = inet6_sdif(skb); +- break; +- case AF_INET: +- ifindex = inet_sdif(skb); +- break; +- } +- if (!ifindex) +- ifindex = skb->dev->ifindex; +- +- xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id); +- +- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) { +- if (ifindex == xi->dev->ifindex && +- (xi->dev->flags & IFF_UP)) +- return xi; +- } +- +- return NULL; +-} +- +-static void xfrmi_link(struct xfrmi_net *xfrmn, struct xfrm_if *xi) +-{ +- struct xfrm_if __rcu **xip = &xfrmn->xfrmi[0]; +- +- rcu_assign_pointer(xi->next , rtnl_dereference(*xip)); +- rcu_assign_pointer(*xip, xi); +-} +- +-static void xfrmi_unlink(struct xfrmi_net *xfrmn, struct xfrm_if *xi) +-{ +- struct xfrm_if __rcu **xip; +- struct xfrm_if *iter; +- +- for (xip = &xfrmn->xfrmi[0]; +- (iter = rtnl_dereference(*xip)) != NULL; +- xip = &iter->next) { +- if (xi == iter) { +- rcu_assign_pointer(*xip, xi->next); +- break; +- } +- } +-} +- +-static void xfrmi_dev_free(struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- +- gro_cells_destroy(&xi->gro_cells); +- free_percpu(dev->tstats); +-} +- +-static int xfrmi_create(struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct net *net = dev_net(dev); +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- int err; +- +- dev->rtnl_link_ops = &xfrmi_link_ops; +- err = register_netdevice(dev); +- if (err < 0) +- goto out; +- +- dev_hold(dev); +- xfrmi_link(xfrmn, xi); +- +- return 0; +- +-out: +- return err; +-} +- +-static struct xfrm_if *xfrmi_locate(struct net *net, struct xfrm_if_parms *p) +-{ +- struct xfrm_if __rcu **xip; +- struct xfrm_if *xi; +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- +- for (xip = &xfrmn->xfrmi[0]; +- (xi = rtnl_dereference(*xip)) != NULL; +- xip = &xi->next) +- if (xi->p.if_id == p->if_id) +- return xi; +- +- return NULL; +-} +- +-static void xfrmi_dev_uninit(struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct xfrmi_net *xfrmn = net_generic(xi->net, xfrmi_net_id); +- +- xfrmi_unlink(xfrmn, xi); +- dev_put(dev); +-} +- +-static void xfrmi_scrub_packet(struct sk_buff *skb, bool xnet) +-{ +- skb->tstamp = 0; +- skb->pkt_type = PACKET_HOST; +- skb->skb_iif = 0; +- skb->ignore_df = 0; +- skb_dst_drop(skb); +- nf_reset_ct(skb); +- nf_reset_trace(skb); +- +- if (!xnet) +- return; +- +- ipvs_reset(skb); +- secpath_reset(skb); +- skb_orphan(skb); +- skb->mark = 0; +-} +- +-static int xfrmi_rcv_cb(struct sk_buff *skb, int err) +-{ +- const struct xfrm_mode *inner_mode; +- struct pcpu_sw_netstats *tstats; +- struct net_device *dev; +- struct xfrm_state *x; +- struct xfrm_if *xi; +- bool xnet; +- +- if (err && !secpath_exists(skb)) +- return 0; +- +- x = xfrm_input_state(skb); +- +- xi = xfrmi_lookup(xs_net(x), x); +- if (!xi) +- return 1; +- +- dev = xi->dev; +- skb->dev = dev; +- +- if (err) { +- dev->stats.rx_errors++; +- dev->stats.rx_dropped++; +- +- return 0; +- } +- +- xnet = !net_eq(xi->net, dev_net(skb->dev)); +- +- if (xnet) { +- inner_mode = &x->inner_mode; +- +- if (x->sel.family == AF_UNSPEC) { +- inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol); +- if (inner_mode == NULL) { +- XFRM_INC_STATS(dev_net(skb->dev), +- LINUX_MIB_XFRMINSTATEMODEERROR); +- return -EINVAL; +- } +- } +- +- if (!xfrm_policy_check(NULL, XFRM_POLICY_IN, skb, +- inner_mode->family)) +- return -EPERM; +- } +- +- xfrmi_scrub_packet(skb, xnet); +- +- tstats = this_cpu_ptr(dev->tstats); +- +- u64_stats_update_begin(&tstats->syncp); +- tstats->rx_packets++; +- tstats->rx_bytes += skb->len; +- u64_stats_update_end(&tstats->syncp); +- +- return 0; +-} +- +-static int +-xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct net_device_stats *stats = &xi->dev->stats; +- struct dst_entry *dst = skb_dst(skb); +- unsigned int length = skb->len; +- struct net_device *tdev; +- struct xfrm_state *x; +- int err = -1; +- int mtu; +- +- dst_hold(dst); +- dst = xfrm_lookup_with_ifid(xi->net, dst, fl, NULL, 0, xi->p.if_id); +- if (IS_ERR(dst)) { +- err = PTR_ERR(dst); +- dst = NULL; +- goto tx_err_link_failure; +- } +- +- x = dst->xfrm; +- if (!x) +- goto tx_err_link_failure; +- +- if (x->if_id != xi->p.if_id) +- goto tx_err_link_failure; +- +- tdev = dst->dev; +- +- if (tdev == dev) { +- stats->collisions++; +- net_warn_ratelimited("%s: Local routing loop detected!\n", +- dev->name); +- goto tx_err_dst_release; +- } +- +- mtu = dst_mtu(dst); +- if (skb->len > mtu) { +- skb_dst_update_pmtu_no_confirm(skb, mtu); +- +- if (skb->protocol == htons(ETH_P_IPV6)) { +- if (mtu < IPV6_MIN_MTU) +- mtu = IPV6_MIN_MTU; +- +- if (skb->len > 1280) +- icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); +- else +- goto xmit; +- } else { +- if (!(ip_hdr(skb)->frag_off & htons(IP_DF))) +- goto xmit; +- icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, +- htonl(mtu)); +- } +- +- dst_release(dst); +- return -EMSGSIZE; +- } +- +-xmit: +- xfrmi_scrub_packet(skb, !net_eq(xi->net, dev_net(dev))); +- skb_dst_set(skb, dst); +- skb->dev = tdev; +- +- err = dst_output(xi->net, skb->sk, skb); +- if (net_xmit_eval(err) == 0) { +- struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); +- +- u64_stats_update_begin(&tstats->syncp); +- tstats->tx_bytes += length; +- tstats->tx_packets++; +- u64_stats_update_end(&tstats->syncp); +- } else { +- stats->tx_errors++; +- stats->tx_aborted_errors++; +- } +- +- return 0; +-tx_err_link_failure: +- stats->tx_carrier_errors++; +- dst_link_failure(skb); +-tx_err_dst_release: +- dst_release(dst); +- return err; +-} +- +-static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct net_device_stats *stats = &xi->dev->stats; +- struct dst_entry *dst = skb_dst(skb); +- struct flowi fl; +- int ret; +- +- memset(&fl, 0, sizeof(fl)); +- +- switch (skb->protocol) { +- case htons(ETH_P_IPV6): +- xfrm_decode_session(skb, &fl, AF_INET6); +- memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); +- if (!dst) { +- fl.u.ip6.flowi6_oif = dev->ifindex; +- fl.u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC; +- dst = ip6_route_output(dev_net(dev), NULL, &fl.u.ip6); +- if (dst->error) { +- dst_release(dst); +- stats->tx_carrier_errors++; +- goto tx_err; +- } +- skb_dst_set(skb, dst); +- } +- break; +- case htons(ETH_P_IP): +- xfrm_decode_session(skb, &fl, AF_INET); +- memset(IPCB(skb), 0, sizeof(*IPCB(skb))); +- if (!dst) { +- struct rtable *rt; +- +- fl.u.ip4.flowi4_oif = dev->ifindex; +- fl.u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC; +- rt = __ip_route_output_key(dev_net(dev), &fl.u.ip4); +- if (IS_ERR(rt)) { +- stats->tx_carrier_errors++; +- goto tx_err; +- } +- skb_dst_set(skb, &rt->dst); +- } +- break; +- default: +- goto tx_err; +- } +- +- fl.flowi_oif = xi->p.link; +- +- ret = xfrmi_xmit2(skb, dev, &fl); +- if (ret < 0) +- goto tx_err; +- +- return NETDEV_TX_OK; +- +-tx_err: +- stats->tx_errors++; +- stats->tx_dropped++; +- kfree_skb(skb); +- return NETDEV_TX_OK; +-} +- +-static int xfrmi4_err(struct sk_buff *skb, u32 info) +-{ +- const struct iphdr *iph = (const struct iphdr *)skb->data; +- struct net *net = dev_net(skb->dev); +- int protocol = iph->protocol; +- struct ip_comp_hdr *ipch; +- struct ip_esp_hdr *esph; +- struct ip_auth_hdr *ah ; +- struct xfrm_state *x; +- struct xfrm_if *xi; +- __be32 spi; +- +- switch (protocol) { +- case IPPROTO_ESP: +- esph = (struct ip_esp_hdr *)(skb->data+(iph->ihl<<2)); +- spi = esph->spi; +- break; +- case IPPROTO_AH: +- ah = (struct ip_auth_hdr *)(skb->data+(iph->ihl<<2)); +- spi = ah->spi; +- break; +- case IPPROTO_COMP: +- ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2)); +- spi = htonl(ntohs(ipch->cpi)); +- break; +- default: +- return 0; +- } +- +- switch (icmp_hdr(skb)->type) { +- case ICMP_DEST_UNREACH: +- if (icmp_hdr(skb)->code != ICMP_FRAG_NEEDED) +- return 0; +- case ICMP_REDIRECT: +- break; +- default: +- return 0; +- } +- +- x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr, +- spi, protocol, AF_INET); +- if (!x) +- return 0; +- +- xi = xfrmi_lookup(net, x); +- if (!xi) { +- xfrm_state_put(x); +- return -1; +- } +- +- if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) +- ipv4_update_pmtu(skb, net, info, 0, protocol); +- else +- ipv4_redirect(skb, net, 0, protocol); +- xfrm_state_put(x); +- +- return 0; +-} +- +-static int xfrmi6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, +- u8 type, u8 code, int offset, __be32 info) +-{ +- const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data; +- struct net *net = dev_net(skb->dev); +- int protocol = iph->nexthdr; +- struct ip_comp_hdr *ipch; +- struct ip_esp_hdr *esph; +- struct ip_auth_hdr *ah; +- struct xfrm_state *x; +- struct xfrm_if *xi; +- __be32 spi; +- +- switch (protocol) { +- case IPPROTO_ESP: +- esph = (struct ip_esp_hdr *)(skb->data + offset); +- spi = esph->spi; +- break; +- case IPPROTO_AH: +- ah = (struct ip_auth_hdr *)(skb->data + offset); +- spi = ah->spi; +- break; +- case IPPROTO_COMP: +- ipch = (struct ip_comp_hdr *)(skb->data + offset); +- spi = htonl(ntohs(ipch->cpi)); +- break; +- default: +- return 0; +- } +- +- if (type != ICMPV6_PKT_TOOBIG && +- type != NDISC_REDIRECT) +- return 0; +- +- x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr, +- spi, protocol, AF_INET6); +- if (!x) +- return 0; +- +- xi = xfrmi_lookup(net, x); +- if (!xi) { +- xfrm_state_put(x); +- return -1; +- } +- +- if (type == NDISC_REDIRECT) +- ip6_redirect(skb, net, skb->dev->ifindex, 0, +- sock_net_uid(net, NULL)); +- else +- ip6_update_pmtu(skb, net, info, 0, 0, sock_net_uid(net, NULL)); +- xfrm_state_put(x); +- +- return 0; +-} +- +-static int xfrmi_change(struct xfrm_if *xi, const struct xfrm_if_parms *p) +-{ +- if (xi->p.link != p->link) +- return -EINVAL; +- +- xi->p.if_id = p->if_id; +- +- return 0; +-} +- +-static int xfrmi_update(struct xfrm_if *xi, struct xfrm_if_parms *p) +-{ +- struct net *net = xi->net; +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- int err; +- +- xfrmi_unlink(xfrmn, xi); +- synchronize_net(); +- err = xfrmi_change(xi, p); +- xfrmi_link(xfrmn, xi); +- netdev_state_change(xi->dev); +- return err; +-} +- +-static void xfrmi_get_stats64(struct net_device *dev, +- struct rtnl_link_stats64 *s) +-{ +- int cpu; +- +- for_each_possible_cpu(cpu) { +- struct pcpu_sw_netstats *stats; +- struct pcpu_sw_netstats tmp; +- int start; +- +- stats = per_cpu_ptr(dev->tstats, cpu); +- do { +- start = u64_stats_fetch_begin_irq(&stats->syncp); +- tmp.rx_packets = stats->rx_packets; +- tmp.rx_bytes = stats->rx_bytes; +- tmp.tx_packets = stats->tx_packets; +- tmp.tx_bytes = stats->tx_bytes; +- } while (u64_stats_fetch_retry_irq(&stats->syncp, start)); +- +- s->rx_packets += tmp.rx_packets; +- s->rx_bytes += tmp.rx_bytes; +- s->tx_packets += tmp.tx_packets; +- s->tx_bytes += tmp.tx_bytes; +- } +- +- s->rx_dropped = dev->stats.rx_dropped; +- s->tx_dropped = dev->stats.tx_dropped; +-} +- +-static int xfrmi_get_iflink(const struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- +- return xi->p.link; +-} +- +- +-static const struct net_device_ops xfrmi_netdev_ops = { +- .ndo_init = xfrmi_dev_init, +- .ndo_uninit = xfrmi_dev_uninit, +- .ndo_start_xmit = xfrmi_xmit, +- .ndo_get_stats64 = xfrmi_get_stats64, +- .ndo_get_iflink = xfrmi_get_iflink, +-}; +- +-static void xfrmi_dev_setup(struct net_device *dev) +-{ +- dev->netdev_ops = &xfrmi_netdev_ops; +- dev->type = ARPHRD_NONE; +- dev->mtu = ETH_DATA_LEN; +- dev->min_mtu = ETH_MIN_MTU; +- dev->max_mtu = IP_MAX_MTU; +- dev->flags = IFF_NOARP; +- dev->needs_free_netdev = true; +- dev->priv_destructor = xfrmi_dev_free; +- netif_keep_dst(dev); +- +- eth_broadcast_addr(dev->broadcast); +-} +- +-static int xfrmi_dev_init(struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct net_device *phydev = __dev_get_by_index(xi->net, xi->p.link); +- int err; +- +- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); +- if (!dev->tstats) +- return -ENOMEM; +- +- err = gro_cells_init(&xi->gro_cells, dev); +- if (err) { +- free_percpu(dev->tstats); +- return err; +- } +- +- dev->features |= NETIF_F_LLTX; +- +- if (phydev) { +- dev->needed_headroom = phydev->needed_headroom; +- dev->needed_tailroom = phydev->needed_tailroom; +- +- if (is_zero_ether_addr(dev->dev_addr)) +- eth_hw_addr_inherit(dev, phydev); +- if (is_zero_ether_addr(dev->broadcast)) +- memcpy(dev->broadcast, phydev->broadcast, +- dev->addr_len); +- } else { +- eth_hw_addr_random(dev); +- eth_broadcast_addr(dev->broadcast); +- } +- +- return 0; +-} +- +-static int xfrmi_validate(struct nlattr *tb[], struct nlattr *data[], +- struct netlink_ext_ack *extack) +-{ +- return 0; +-} +- +-static void xfrmi_netlink_parms(struct nlattr *data[], +- struct xfrm_if_parms *parms) +-{ +- memset(parms, 0, sizeof(*parms)); +- +- if (!data) +- return; +- +- if (data[IFLA_XFRM_LINK]) +- parms->link = nla_get_u32(data[IFLA_XFRM_LINK]); +- +- if (data[IFLA_XFRM_IF_ID]) +- parms->if_id = nla_get_u32(data[IFLA_XFRM_IF_ID]); +-} +- +-static int xfrmi_newlink(struct net *src_net, struct net_device *dev, +- struct nlattr *tb[], struct nlattr *data[], +- struct netlink_ext_ack *extack) +-{ +- struct net *net = dev_net(dev); +- struct xfrm_if_parms p = {}; +- struct xfrm_if *xi; +- int err; +- +- xfrmi_netlink_parms(data, &p); +- if (!p.if_id) { +- NL_SET_ERR_MSG(extack, "if_id must be non zero"); +- return -EINVAL; +- } +- +- xi = xfrmi_locate(net, &p); +- if (xi) +- return -EEXIST; +- +- xi = netdev_priv(dev); +- xi->p = p; +- xi->net = net; +- xi->dev = dev; +- +- err = xfrmi_create(dev); +- return err; +-} +- +-static void xfrmi_dellink(struct net_device *dev, struct list_head *head) +-{ +- unregister_netdevice_queue(dev, head); +-} +- +-static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[], +- struct nlattr *data[], +- struct netlink_ext_ack *extack) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct net *net = xi->net; +- struct xfrm_if_parms p = {}; +- +- xfrmi_netlink_parms(data, &p); +- if (!p.if_id) { +- NL_SET_ERR_MSG(extack, "if_id must be non zero"); +- return -EINVAL; +- } +- +- xi = xfrmi_locate(net, &p); +- if (!xi) { +- xi = netdev_priv(dev); +- } else { +- if (xi->dev != dev) +- return -EEXIST; +- } +- +- return xfrmi_update(xi, &p); +-} +- +-static size_t xfrmi_get_size(const struct net_device *dev) +-{ +- return +- /* IFLA_XFRM_LINK */ +- nla_total_size(4) + +- /* IFLA_XFRM_IF_ID */ +- nla_total_size(4) + +- 0; +-} +- +-static int xfrmi_fill_info(struct sk_buff *skb, const struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- struct xfrm_if_parms *parm = &xi->p; +- +- if (nla_put_u32(skb, IFLA_XFRM_LINK, parm->link) || +- nla_put_u32(skb, IFLA_XFRM_IF_ID, parm->if_id)) +- goto nla_put_failure; +- return 0; +- +-nla_put_failure: +- return -EMSGSIZE; +-} +- +-static struct net *xfrmi_get_link_net(const struct net_device *dev) +-{ +- struct xfrm_if *xi = netdev_priv(dev); +- +- return xi->net; +-} +- +-static const struct nla_policy xfrmi_policy[IFLA_XFRM_MAX + 1] = { +- [IFLA_XFRM_LINK] = { .type = NLA_U32 }, +- [IFLA_XFRM_IF_ID] = { .type = NLA_U32 }, +-}; +- +-static struct rtnl_link_ops xfrmi_link_ops __read_mostly = { +- .kind = "xfrm", +- .maxtype = IFLA_XFRM_MAX, +- .policy = xfrmi_policy, +- .priv_size = sizeof(struct xfrm_if), +- .setup = xfrmi_dev_setup, +- .validate = xfrmi_validate, +- .newlink = xfrmi_newlink, +- .dellink = xfrmi_dellink, +- .changelink = xfrmi_changelink, +- .get_size = xfrmi_get_size, +- .fill_info = xfrmi_fill_info, +- .get_link_net = xfrmi_get_link_net, +-}; +- +-static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn) +-{ +- struct xfrm_if *xi; +- LIST_HEAD(list); +- +- xi = rtnl_dereference(xfrmn->xfrmi[0]); +- if (!xi) +- return; +- +- unregister_netdevice_queue(xi->dev, &list); +- unregister_netdevice_many(&list); +-} +- +-static void __net_exit xfrmi_exit_net(struct net *net) +-{ +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- +- rtnl_lock(); +- xfrmi_destroy_interfaces(xfrmn); +- rtnl_unlock(); +-} +- +-static void __net_exit xfrmi_exit_batch_net(struct list_head *net_exit_list) +-{ +- struct net *net; +- LIST_HEAD(list); +- +- rtnl_lock(); +- list_for_each_entry(net, net_exit_list, exit_list) { +- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); +- struct xfrm_if __rcu **xip; +- struct xfrm_if *xi; +- +- for (xip = &xfrmn->xfrmi[0]; +- (xi = rtnl_dereference(*xip)) != NULL; +- xip = &xi->next) +- unregister_netdevice_queue(xi->dev, &list); +- } +- unregister_netdevice_many(&list); +- rtnl_unlock(); +-} +- +-static struct pernet_operations xfrmi_net_ops = { +- .exit_batch = xfrmi_exit_batch_net, +- .exit = xfrmi_exit_net, +- .id = &xfrmi_net_id, +- .size = sizeof(struct xfrmi_net), +-}; +- +-static struct xfrm6_protocol xfrmi_esp6_protocol __read_mostly = { +- .handler = xfrm6_rcv, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi6_err, +- .priority = 10, +-}; +- +-static struct xfrm6_protocol xfrmi_ah6_protocol __read_mostly = { +- .handler = xfrm6_rcv, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi6_err, +- .priority = 10, +-}; +- +-static struct xfrm6_protocol xfrmi_ipcomp6_protocol __read_mostly = { +- .handler = xfrm6_rcv, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi6_err, +- .priority = 10, +-}; +- +-static struct xfrm4_protocol xfrmi_esp4_protocol __read_mostly = { +- .handler = xfrm4_rcv, +- .input_handler = xfrm_input, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi4_err, +- .priority = 10, +-}; +- +-static struct xfrm4_protocol xfrmi_ah4_protocol __read_mostly = { +- .handler = xfrm4_rcv, +- .input_handler = xfrm_input, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi4_err, +- .priority = 10, +-}; +- +-static struct xfrm4_protocol xfrmi_ipcomp4_protocol __read_mostly = { +- .handler = xfrm4_rcv, +- .input_handler = xfrm_input, +- .cb_handler = xfrmi_rcv_cb, +- .err_handler = xfrmi4_err, +- .priority = 10, +-}; +- +-static int __init xfrmi4_init(void) +-{ +- int err; +- +- err = xfrm4_protocol_register(&xfrmi_esp4_protocol, IPPROTO_ESP); +- if (err < 0) +- goto xfrm_proto_esp_failed; +- err = xfrm4_protocol_register(&xfrmi_ah4_protocol, IPPROTO_AH); +- if (err < 0) +- goto xfrm_proto_ah_failed; +- err = xfrm4_protocol_register(&xfrmi_ipcomp4_protocol, IPPROTO_COMP); +- if (err < 0) +- goto xfrm_proto_comp_failed; +- +- return 0; +- +-xfrm_proto_comp_failed: +- xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH); +-xfrm_proto_ah_failed: +- xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP); +-xfrm_proto_esp_failed: +- return err; +-} +- +-static void xfrmi4_fini(void) +-{ +- xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP); +- xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH); +- xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP); +-} +- +-static int __init xfrmi6_init(void) +-{ +- int err; +- +- err = xfrm6_protocol_register(&xfrmi_esp6_protocol, IPPROTO_ESP); +- if (err < 0) +- goto xfrm_proto_esp_failed; +- err = xfrm6_protocol_register(&xfrmi_ah6_protocol, IPPROTO_AH); +- if (err < 0) +- goto xfrm_proto_ah_failed; +- err = xfrm6_protocol_register(&xfrmi_ipcomp6_protocol, IPPROTO_COMP); +- if (err < 0) +- goto xfrm_proto_comp_failed; +- +- return 0; +- +-xfrm_proto_comp_failed: +- xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH); +-xfrm_proto_ah_failed: +- xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP); +-xfrm_proto_esp_failed: +- return err; +-} +- +-static void xfrmi6_fini(void) +-{ +- xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP); +- xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH); +- xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP); +-} +- +-static const struct xfrm_if_cb xfrm_if_cb = { +- .decode_session = xfrmi_decode_session, +-}; +- +-static int __init xfrmi_init(void) +-{ +- const char *msg; +- int err; +- +- pr_info("IPsec XFRM device driver\n"); +- +- msg = "tunnel device"; +- err = register_pernet_device(&xfrmi_net_ops); +- if (err < 0) +- goto pernet_dev_failed; +- +- msg = "xfrm4 protocols"; +- err = xfrmi4_init(); +- if (err < 0) +- goto xfrmi4_failed; +- +- msg = "xfrm6 protocols"; +- err = xfrmi6_init(); +- if (err < 0) +- goto xfrmi6_failed; +- +- +- msg = "netlink interface"; +- err = rtnl_link_register(&xfrmi_link_ops); +- if (err < 0) +- goto rtnl_link_failed; +- +- xfrm_if_register_cb(&xfrm_if_cb); +- +- return err; +- +-rtnl_link_failed: +- xfrmi6_fini(); +-xfrmi6_failed: +- xfrmi4_fini(); +-xfrmi4_failed: +- unregister_pernet_device(&xfrmi_net_ops); +-pernet_dev_failed: +- pr_err("xfrmi init: failed to register %s\n", msg); +- return err; +-} +- +-static void __exit xfrmi_fini(void) +-{ +- xfrm_if_unregister_cb(); +- rtnl_link_unregister(&xfrmi_link_ops); +- xfrmi4_fini(); +- xfrmi6_fini(); +- unregister_pernet_device(&xfrmi_net_ops); +-} +- +-module_init(xfrmi_init); +-module_exit(xfrmi_fini); +-MODULE_LICENSE("GPL"); +-MODULE_ALIAS_RTNL_LINK("xfrm"); +-MODULE_ALIAS_NETDEV("xfrm0"); +-MODULE_AUTHOR("Steffen Klassert"); +-MODULE_DESCRIPTION("XFRM virtual interface"); +diff --git a/net/xfrm/xfrm_interface_core.c b/net/xfrm/xfrm_interface_core.c +new file mode 100644 +index 0000000000000..3dc63810c5f5a +--- /dev/null ++++ b/net/xfrm/xfrm_interface_core.c +@@ -0,0 +1,987 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * XFRM virtual interface ++ * ++ * Copyright (C) 2018 secunet Security Networks AG ++ * ++ * Author: ++ * Steffen Klassert <steffen.klassert@secunet.com> ++ */ ++ ++#include <linux/module.h> ++#include <linux/capability.h> ++#include <linux/errno.h> ++#include <linux/types.h> ++#include <linux/sockios.h> ++#include <linux/icmp.h> ++#include <linux/if.h> ++#include <linux/in.h> ++#include <linux/ip.h> ++#include <linux/net.h> ++#include <linux/in6.h> ++#include <linux/netdevice.h> ++#include <linux/if_link.h> ++#include <linux/if_arp.h> ++#include <linux/icmpv6.h> ++#include <linux/init.h> ++#include <linux/route.h> ++#include <linux/rtnetlink.h> ++#include <linux/netfilter_ipv6.h> ++#include <linux/slab.h> ++#include <linux/hash.h> ++ ++#include <linux/uaccess.h> ++#include <linux/atomic.h> ++ ++#include <net/icmp.h> ++#include <net/ip.h> ++#include <net/ipv6.h> ++#include <net/ip6_route.h> ++#include <net/addrconf.h> ++#include <net/xfrm.h> ++#include <net/net_namespace.h> ++#include <net/netns/generic.h> ++#include <linux/etherdevice.h> ++ ++static int xfrmi_dev_init(struct net_device *dev); ++static void xfrmi_dev_setup(struct net_device *dev); ++static struct rtnl_link_ops xfrmi_link_ops __read_mostly; ++static unsigned int xfrmi_net_id __read_mostly; ++ ++struct xfrmi_net { ++ /* lists for storing interfaces in use */ ++ struct xfrm_if __rcu *xfrmi[1]; ++}; ++ ++#define for_each_xfrmi_rcu(start, xi) \ ++ for (xi = rcu_dereference(start); xi; xi = rcu_dereference(xi->next)) ++ ++static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x) ++{ ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ struct xfrm_if *xi; ++ ++ for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) { ++ if (x->if_id == xi->p.if_id && ++ (xi->dev->flags & IFF_UP)) ++ return xi; ++ } ++ ++ return NULL; ++} ++ ++static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb, ++ unsigned short family) ++{ ++ struct xfrmi_net *xfrmn; ++ struct xfrm_if *xi; ++ int ifindex = 0; ++ ++ if (!secpath_exists(skb) || !skb->dev) ++ return NULL; ++ ++ switch (family) { ++ case AF_INET6: ++ ifindex = inet6_sdif(skb); ++ break; ++ case AF_INET: ++ ifindex = inet_sdif(skb); ++ break; ++ } ++ if (!ifindex) ++ ifindex = skb->dev->ifindex; ++ ++ xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id); ++ ++ for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) { ++ if (ifindex == xi->dev->ifindex && ++ (xi->dev->flags & IFF_UP)) ++ return xi; ++ } ++ ++ return NULL; ++} ++ ++static void xfrmi_link(struct xfrmi_net *xfrmn, struct xfrm_if *xi) ++{ ++ struct xfrm_if __rcu **xip = &xfrmn->xfrmi[0]; ++ ++ rcu_assign_pointer(xi->next , rtnl_dereference(*xip)); ++ rcu_assign_pointer(*xip, xi); ++} ++ ++static void xfrmi_unlink(struct xfrmi_net *xfrmn, struct xfrm_if *xi) ++{ ++ struct xfrm_if __rcu **xip; ++ struct xfrm_if *iter; ++ ++ for (xip = &xfrmn->xfrmi[0]; ++ (iter = rtnl_dereference(*xip)) != NULL; ++ xip = &iter->next) { ++ if (xi == iter) { ++ rcu_assign_pointer(*xip, xi->next); ++ break; ++ } ++ } ++} ++ ++static void xfrmi_dev_free(struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ ++ gro_cells_destroy(&xi->gro_cells); ++ free_percpu(dev->tstats); ++} ++ ++static int xfrmi_create(struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct net *net = dev_net(dev); ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ int err; ++ ++ dev->rtnl_link_ops = &xfrmi_link_ops; ++ err = register_netdevice(dev); ++ if (err < 0) ++ goto out; ++ ++ dev_hold(dev); ++ xfrmi_link(xfrmn, xi); ++ ++ return 0; ++ ++out: ++ return err; ++} ++ ++static struct xfrm_if *xfrmi_locate(struct net *net, struct xfrm_if_parms *p) ++{ ++ struct xfrm_if __rcu **xip; ++ struct xfrm_if *xi; ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ ++ for (xip = &xfrmn->xfrmi[0]; ++ (xi = rtnl_dereference(*xip)) != NULL; ++ xip = &xi->next) ++ if (xi->p.if_id == p->if_id) ++ return xi; ++ ++ return NULL; ++} ++ ++static void xfrmi_dev_uninit(struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct xfrmi_net *xfrmn = net_generic(xi->net, xfrmi_net_id); ++ ++ xfrmi_unlink(xfrmn, xi); ++ dev_put(dev); ++} ++ ++static void xfrmi_scrub_packet(struct sk_buff *skb, bool xnet) ++{ ++ skb->tstamp = 0; ++ skb->pkt_type = PACKET_HOST; ++ skb->skb_iif = 0; ++ skb->ignore_df = 0; ++ skb_dst_drop(skb); ++ nf_reset_ct(skb); ++ nf_reset_trace(skb); ++ ++ if (!xnet) ++ return; ++ ++ ipvs_reset(skb); ++ secpath_reset(skb); ++ skb_orphan(skb); ++ skb->mark = 0; ++} ++ ++static int xfrmi_rcv_cb(struct sk_buff *skb, int err) ++{ ++ const struct xfrm_mode *inner_mode; ++ struct pcpu_sw_netstats *tstats; ++ struct net_device *dev; ++ struct xfrm_state *x; ++ struct xfrm_if *xi; ++ bool xnet; ++ ++ if (err && !secpath_exists(skb)) ++ return 0; ++ ++ x = xfrm_input_state(skb); ++ ++ xi = xfrmi_lookup(xs_net(x), x); ++ if (!xi) ++ return 1; ++ ++ dev = xi->dev; ++ skb->dev = dev; ++ ++ if (err) { ++ dev->stats.rx_errors++; ++ dev->stats.rx_dropped++; ++ ++ return 0; ++ } ++ ++ xnet = !net_eq(xi->net, dev_net(skb->dev)); ++ ++ if (xnet) { ++ inner_mode = &x->inner_mode; ++ ++ if (x->sel.family == AF_UNSPEC) { ++ inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol); ++ if (inner_mode == NULL) { ++ XFRM_INC_STATS(dev_net(skb->dev), ++ LINUX_MIB_XFRMINSTATEMODEERROR); ++ return -EINVAL; ++ } ++ } ++ ++ if (!xfrm_policy_check(NULL, XFRM_POLICY_IN, skb, ++ inner_mode->family)) ++ return -EPERM; ++ } ++ ++ xfrmi_scrub_packet(skb, xnet); ++ ++ tstats = this_cpu_ptr(dev->tstats); ++ ++ u64_stats_update_begin(&tstats->syncp); ++ tstats->rx_packets++; ++ tstats->rx_bytes += skb->len; ++ u64_stats_update_end(&tstats->syncp); ++ ++ return 0; ++} ++ ++static int ++xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct net_device_stats *stats = &xi->dev->stats; ++ struct dst_entry *dst = skb_dst(skb); ++ unsigned int length = skb->len; ++ struct net_device *tdev; ++ struct xfrm_state *x; ++ int err = -1; ++ int mtu; ++ ++ dst_hold(dst); ++ dst = xfrm_lookup_with_ifid(xi->net, dst, fl, NULL, 0, xi->p.if_id); ++ if (IS_ERR(dst)) { ++ err = PTR_ERR(dst); ++ dst = NULL; ++ goto tx_err_link_failure; ++ } ++ ++ x = dst->xfrm; ++ if (!x) ++ goto tx_err_link_failure; ++ ++ if (x->if_id != xi->p.if_id) ++ goto tx_err_link_failure; ++ ++ tdev = dst->dev; ++ ++ if (tdev == dev) { ++ stats->collisions++; ++ net_warn_ratelimited("%s: Local routing loop detected!\n", ++ dev->name); ++ goto tx_err_dst_release; ++ } ++ ++ mtu = dst_mtu(dst); ++ if (skb->len > mtu) { ++ skb_dst_update_pmtu_no_confirm(skb, mtu); ++ ++ if (skb->protocol == htons(ETH_P_IPV6)) { ++ if (mtu < IPV6_MIN_MTU) ++ mtu = IPV6_MIN_MTU; ++ ++ if (skb->len > 1280) ++ icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); ++ else ++ goto xmit; ++ } else { ++ if (!(ip_hdr(skb)->frag_off & htons(IP_DF))) ++ goto xmit; ++ icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, ++ htonl(mtu)); ++ } ++ ++ dst_release(dst); ++ return -EMSGSIZE; ++ } ++ ++xmit: ++ xfrmi_scrub_packet(skb, !net_eq(xi->net, dev_net(dev))); ++ skb_dst_set(skb, dst); ++ skb->dev = tdev; ++ ++ err = dst_output(xi->net, skb->sk, skb); ++ if (net_xmit_eval(err) == 0) { ++ struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); ++ ++ u64_stats_update_begin(&tstats->syncp); ++ tstats->tx_bytes += length; ++ tstats->tx_packets++; ++ u64_stats_update_end(&tstats->syncp); ++ } else { ++ stats->tx_errors++; ++ stats->tx_aborted_errors++; ++ } ++ ++ return 0; ++tx_err_link_failure: ++ stats->tx_carrier_errors++; ++ dst_link_failure(skb); ++tx_err_dst_release: ++ dst_release(dst); ++ return err; ++} ++ ++static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct net_device_stats *stats = &xi->dev->stats; ++ struct dst_entry *dst = skb_dst(skb); ++ struct flowi fl; ++ int ret; ++ ++ memset(&fl, 0, sizeof(fl)); ++ ++ switch (skb->protocol) { ++ case htons(ETH_P_IPV6): ++ memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET6); ++ if (!dst) { ++ fl.u.ip6.flowi6_oif = dev->ifindex; ++ fl.u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC; ++ dst = ip6_route_output(dev_net(dev), NULL, &fl.u.ip6); ++ if (dst->error) { ++ dst_release(dst); ++ stats->tx_carrier_errors++; ++ goto tx_err; ++ } ++ skb_dst_set(skb, dst); ++ } ++ break; ++ case htons(ETH_P_IP): ++ memset(IPCB(skb), 0, sizeof(*IPCB(skb))); ++ xfrm_decode_session(skb, &fl, AF_INET); ++ if (!dst) { ++ struct rtable *rt; ++ ++ fl.u.ip4.flowi4_oif = dev->ifindex; ++ fl.u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC; ++ rt = __ip_route_output_key(dev_net(dev), &fl.u.ip4); ++ if (IS_ERR(rt)) { ++ stats->tx_carrier_errors++; ++ goto tx_err; ++ } ++ skb_dst_set(skb, &rt->dst); ++ } ++ break; ++ default: ++ goto tx_err; ++ } ++ ++ fl.flowi_oif = xi->p.link; ++ ++ ret = xfrmi_xmit2(skb, dev, &fl); ++ if (ret < 0) ++ goto tx_err; ++ ++ return NETDEV_TX_OK; ++ ++tx_err: ++ stats->tx_errors++; ++ stats->tx_dropped++; ++ kfree_skb(skb); ++ return NETDEV_TX_OK; ++} ++ ++static int xfrmi4_err(struct sk_buff *skb, u32 info) ++{ ++ const struct iphdr *iph = (const struct iphdr *)skb->data; ++ struct net *net = dev_net(skb->dev); ++ int protocol = iph->protocol; ++ struct ip_comp_hdr *ipch; ++ struct ip_esp_hdr *esph; ++ struct ip_auth_hdr *ah ; ++ struct xfrm_state *x; ++ struct xfrm_if *xi; ++ __be32 spi; ++ ++ switch (protocol) { ++ case IPPROTO_ESP: ++ esph = (struct ip_esp_hdr *)(skb->data+(iph->ihl<<2)); ++ spi = esph->spi; ++ break; ++ case IPPROTO_AH: ++ ah = (struct ip_auth_hdr *)(skb->data+(iph->ihl<<2)); ++ spi = ah->spi; ++ break; ++ case IPPROTO_COMP: ++ ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2)); ++ spi = htonl(ntohs(ipch->cpi)); ++ break; ++ default: ++ return 0; ++ } ++ ++ switch (icmp_hdr(skb)->type) { ++ case ICMP_DEST_UNREACH: ++ if (icmp_hdr(skb)->code != ICMP_FRAG_NEEDED) ++ return 0; ++ case ICMP_REDIRECT: ++ break; ++ default: ++ return 0; ++ } ++ ++ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr, ++ spi, protocol, AF_INET); ++ if (!x) ++ return 0; ++ ++ xi = xfrmi_lookup(net, x); ++ if (!xi) { ++ xfrm_state_put(x); ++ return -1; ++ } ++ ++ if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) ++ ipv4_update_pmtu(skb, net, info, 0, protocol); ++ else ++ ipv4_redirect(skb, net, 0, protocol); ++ xfrm_state_put(x); ++ ++ return 0; ++} ++ ++static int xfrmi6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, ++ u8 type, u8 code, int offset, __be32 info) ++{ ++ const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data; ++ struct net *net = dev_net(skb->dev); ++ int protocol = iph->nexthdr; ++ struct ip_comp_hdr *ipch; ++ struct ip_esp_hdr *esph; ++ struct ip_auth_hdr *ah; ++ struct xfrm_state *x; ++ struct xfrm_if *xi; ++ __be32 spi; ++ ++ switch (protocol) { ++ case IPPROTO_ESP: ++ esph = (struct ip_esp_hdr *)(skb->data + offset); ++ spi = esph->spi; ++ break; ++ case IPPROTO_AH: ++ ah = (struct ip_auth_hdr *)(skb->data + offset); ++ spi = ah->spi; ++ break; ++ case IPPROTO_COMP: ++ ipch = (struct ip_comp_hdr *)(skb->data + offset); ++ spi = htonl(ntohs(ipch->cpi)); ++ break; ++ default: ++ return 0; ++ } ++ ++ if (type != ICMPV6_PKT_TOOBIG && ++ type != NDISC_REDIRECT) ++ return 0; ++ ++ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr, ++ spi, protocol, AF_INET6); ++ if (!x) ++ return 0; ++ ++ xi = xfrmi_lookup(net, x); ++ if (!xi) { ++ xfrm_state_put(x); ++ return -1; ++ } ++ ++ if (type == NDISC_REDIRECT) ++ ip6_redirect(skb, net, skb->dev->ifindex, 0, ++ sock_net_uid(net, NULL)); ++ else ++ ip6_update_pmtu(skb, net, info, 0, 0, sock_net_uid(net, NULL)); ++ xfrm_state_put(x); ++ ++ return 0; ++} ++ ++static int xfrmi_change(struct xfrm_if *xi, const struct xfrm_if_parms *p) ++{ ++ if (xi->p.link != p->link) ++ return -EINVAL; ++ ++ xi->p.if_id = p->if_id; ++ ++ return 0; ++} ++ ++static int xfrmi_update(struct xfrm_if *xi, struct xfrm_if_parms *p) ++{ ++ struct net *net = xi->net; ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ int err; ++ ++ xfrmi_unlink(xfrmn, xi); ++ synchronize_net(); ++ err = xfrmi_change(xi, p); ++ xfrmi_link(xfrmn, xi); ++ netdev_state_change(xi->dev); ++ return err; ++} ++ ++static void xfrmi_get_stats64(struct net_device *dev, ++ struct rtnl_link_stats64 *s) ++{ ++ int cpu; ++ ++ for_each_possible_cpu(cpu) { ++ struct pcpu_sw_netstats *stats; ++ struct pcpu_sw_netstats tmp; ++ int start; ++ ++ stats = per_cpu_ptr(dev->tstats, cpu); ++ do { ++ start = u64_stats_fetch_begin_irq(&stats->syncp); ++ tmp.rx_packets = stats->rx_packets; ++ tmp.rx_bytes = stats->rx_bytes; ++ tmp.tx_packets = stats->tx_packets; ++ tmp.tx_bytes = stats->tx_bytes; ++ } while (u64_stats_fetch_retry_irq(&stats->syncp, start)); ++ ++ s->rx_packets += tmp.rx_packets; ++ s->rx_bytes += tmp.rx_bytes; ++ s->tx_packets += tmp.tx_packets; ++ s->tx_bytes += tmp.tx_bytes; ++ } ++ ++ s->rx_dropped = dev->stats.rx_dropped; ++ s->tx_dropped = dev->stats.tx_dropped; ++} ++ ++static int xfrmi_get_iflink(const struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ ++ return xi->p.link; ++} ++ ++ ++static const struct net_device_ops xfrmi_netdev_ops = { ++ .ndo_init = xfrmi_dev_init, ++ .ndo_uninit = xfrmi_dev_uninit, ++ .ndo_start_xmit = xfrmi_xmit, ++ .ndo_get_stats64 = xfrmi_get_stats64, ++ .ndo_get_iflink = xfrmi_get_iflink, ++}; ++ ++static void xfrmi_dev_setup(struct net_device *dev) ++{ ++ dev->netdev_ops = &xfrmi_netdev_ops; ++ dev->type = ARPHRD_NONE; ++ dev->mtu = ETH_DATA_LEN; ++ dev->min_mtu = ETH_MIN_MTU; ++ dev->max_mtu = IP_MAX_MTU; ++ dev->flags = IFF_NOARP; ++ dev->needs_free_netdev = true; ++ dev->priv_destructor = xfrmi_dev_free; ++ netif_keep_dst(dev); ++ ++ eth_broadcast_addr(dev->broadcast); ++} ++ ++static int xfrmi_dev_init(struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct net_device *phydev = __dev_get_by_index(xi->net, xi->p.link); ++ int err; ++ ++ dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); ++ if (!dev->tstats) ++ return -ENOMEM; ++ ++ err = gro_cells_init(&xi->gro_cells, dev); ++ if (err) { ++ free_percpu(dev->tstats); ++ return err; ++ } ++ ++ dev->features |= NETIF_F_LLTX; ++ ++ if (phydev) { ++ dev->needed_headroom = phydev->needed_headroom; ++ dev->needed_tailroom = phydev->needed_tailroom; ++ ++ if (is_zero_ether_addr(dev->dev_addr)) ++ eth_hw_addr_inherit(dev, phydev); ++ if (is_zero_ether_addr(dev->broadcast)) ++ memcpy(dev->broadcast, phydev->broadcast, ++ dev->addr_len); ++ } else { ++ eth_hw_addr_random(dev); ++ eth_broadcast_addr(dev->broadcast); ++ } ++ ++ return 0; ++} ++ ++static int xfrmi_validate(struct nlattr *tb[], struct nlattr *data[], ++ struct netlink_ext_ack *extack) ++{ ++ return 0; ++} ++ ++static void xfrmi_netlink_parms(struct nlattr *data[], ++ struct xfrm_if_parms *parms) ++{ ++ memset(parms, 0, sizeof(*parms)); ++ ++ if (!data) ++ return; ++ ++ if (data[IFLA_XFRM_LINK]) ++ parms->link = nla_get_u32(data[IFLA_XFRM_LINK]); ++ ++ if (data[IFLA_XFRM_IF_ID]) ++ parms->if_id = nla_get_u32(data[IFLA_XFRM_IF_ID]); ++} ++ ++static int xfrmi_newlink(struct net *src_net, struct net_device *dev, ++ struct nlattr *tb[], struct nlattr *data[], ++ struct netlink_ext_ack *extack) ++{ ++ struct net *net = dev_net(dev); ++ struct xfrm_if_parms p = {}; ++ struct xfrm_if *xi; ++ int err; ++ ++ xfrmi_netlink_parms(data, &p); ++ if (!p.if_id) { ++ NL_SET_ERR_MSG(extack, "if_id must be non zero"); ++ return -EINVAL; ++ } ++ ++ xi = xfrmi_locate(net, &p); ++ if (xi) ++ return -EEXIST; ++ ++ xi = netdev_priv(dev); ++ xi->p = p; ++ xi->net = net; ++ xi->dev = dev; ++ ++ err = xfrmi_create(dev); ++ return err; ++} ++ ++static void xfrmi_dellink(struct net_device *dev, struct list_head *head) ++{ ++ unregister_netdevice_queue(dev, head); ++} ++ ++static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[], ++ struct nlattr *data[], ++ struct netlink_ext_ack *extack) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct net *net = xi->net; ++ struct xfrm_if_parms p = {}; ++ ++ xfrmi_netlink_parms(data, &p); ++ if (!p.if_id) { ++ NL_SET_ERR_MSG(extack, "if_id must be non zero"); ++ return -EINVAL; ++ } ++ ++ xi = xfrmi_locate(net, &p); ++ if (!xi) { ++ xi = netdev_priv(dev); ++ } else { ++ if (xi->dev != dev) ++ return -EEXIST; ++ } ++ ++ return xfrmi_update(xi, &p); ++} ++ ++static size_t xfrmi_get_size(const struct net_device *dev) ++{ ++ return ++ /* IFLA_XFRM_LINK */ ++ nla_total_size(4) + ++ /* IFLA_XFRM_IF_ID */ ++ nla_total_size(4) + ++ 0; ++} ++ ++static int xfrmi_fill_info(struct sk_buff *skb, const struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ struct xfrm_if_parms *parm = &xi->p; ++ ++ if (nla_put_u32(skb, IFLA_XFRM_LINK, parm->link) || ++ nla_put_u32(skb, IFLA_XFRM_IF_ID, parm->if_id)) ++ goto nla_put_failure; ++ return 0; ++ ++nla_put_failure: ++ return -EMSGSIZE; ++} ++ ++static struct net *xfrmi_get_link_net(const struct net_device *dev) ++{ ++ struct xfrm_if *xi = netdev_priv(dev); ++ ++ return xi->net; ++} ++ ++static const struct nla_policy xfrmi_policy[IFLA_XFRM_MAX + 1] = { ++ [IFLA_XFRM_LINK] = { .type = NLA_U32 }, ++ [IFLA_XFRM_IF_ID] = { .type = NLA_U32 }, ++}; ++ ++static struct rtnl_link_ops xfrmi_link_ops __read_mostly = { ++ .kind = "xfrm", ++ .maxtype = IFLA_XFRM_MAX, ++ .policy = xfrmi_policy, ++ .priv_size = sizeof(struct xfrm_if), ++ .setup = xfrmi_dev_setup, ++ .validate = xfrmi_validate, ++ .newlink = xfrmi_newlink, ++ .dellink = xfrmi_dellink, ++ .changelink = xfrmi_changelink, ++ .get_size = xfrmi_get_size, ++ .fill_info = xfrmi_fill_info, ++ .get_link_net = xfrmi_get_link_net, ++}; ++ ++static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn) ++{ ++ struct xfrm_if *xi; ++ LIST_HEAD(list); ++ ++ xi = rtnl_dereference(xfrmn->xfrmi[0]); ++ if (!xi) ++ return; ++ ++ unregister_netdevice_queue(xi->dev, &list); ++ unregister_netdevice_many(&list); ++} ++ ++static void __net_exit xfrmi_exit_net(struct net *net) ++{ ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ ++ rtnl_lock(); ++ xfrmi_destroy_interfaces(xfrmn); ++ rtnl_unlock(); ++} ++ ++static void __net_exit xfrmi_exit_batch_net(struct list_head *net_exit_list) ++{ ++ struct net *net; ++ LIST_HEAD(list); ++ ++ rtnl_lock(); ++ list_for_each_entry(net, net_exit_list, exit_list) { ++ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id); ++ struct xfrm_if __rcu **xip; ++ struct xfrm_if *xi; ++ ++ for (xip = &xfrmn->xfrmi[0]; ++ (xi = rtnl_dereference(*xip)) != NULL; ++ xip = &xi->next) ++ unregister_netdevice_queue(xi->dev, &list); ++ } ++ unregister_netdevice_many(&list); ++ rtnl_unlock(); ++} ++ ++static struct pernet_operations xfrmi_net_ops = { ++ .exit_batch = xfrmi_exit_batch_net, ++ .exit = xfrmi_exit_net, ++ .id = &xfrmi_net_id, ++ .size = sizeof(struct xfrmi_net), ++}; ++ ++static struct xfrm6_protocol xfrmi_esp6_protocol __read_mostly = { ++ .handler = xfrm6_rcv, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi6_err, ++ .priority = 10, ++}; ++ ++static struct xfrm6_protocol xfrmi_ah6_protocol __read_mostly = { ++ .handler = xfrm6_rcv, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi6_err, ++ .priority = 10, ++}; ++ ++static struct xfrm6_protocol xfrmi_ipcomp6_protocol __read_mostly = { ++ .handler = xfrm6_rcv, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi6_err, ++ .priority = 10, ++}; ++ ++static struct xfrm4_protocol xfrmi_esp4_protocol __read_mostly = { ++ .handler = xfrm4_rcv, ++ .input_handler = xfrm_input, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi4_err, ++ .priority = 10, ++}; ++ ++static struct xfrm4_protocol xfrmi_ah4_protocol __read_mostly = { ++ .handler = xfrm4_rcv, ++ .input_handler = xfrm_input, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi4_err, ++ .priority = 10, ++}; ++ ++static struct xfrm4_protocol xfrmi_ipcomp4_protocol __read_mostly = { ++ .handler = xfrm4_rcv, ++ .input_handler = xfrm_input, ++ .cb_handler = xfrmi_rcv_cb, ++ .err_handler = xfrmi4_err, ++ .priority = 10, ++}; ++ ++static int __init xfrmi4_init(void) ++{ ++ int err; ++ ++ err = xfrm4_protocol_register(&xfrmi_esp4_protocol, IPPROTO_ESP); ++ if (err < 0) ++ goto xfrm_proto_esp_failed; ++ err = xfrm4_protocol_register(&xfrmi_ah4_protocol, IPPROTO_AH); ++ if (err < 0) ++ goto xfrm_proto_ah_failed; ++ err = xfrm4_protocol_register(&xfrmi_ipcomp4_protocol, IPPROTO_COMP); ++ if (err < 0) ++ goto xfrm_proto_comp_failed; ++ ++ return 0; ++ ++xfrm_proto_comp_failed: ++ xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH); ++xfrm_proto_ah_failed: ++ xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP); ++xfrm_proto_esp_failed: ++ return err; ++} ++ ++static void xfrmi4_fini(void) ++{ ++ xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP); ++ xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH); ++ xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP); ++} ++ ++static int __init xfrmi6_init(void) ++{ ++ int err; ++ ++ err = xfrm6_protocol_register(&xfrmi_esp6_protocol, IPPROTO_ESP); ++ if (err < 0) ++ goto xfrm_proto_esp_failed; ++ err = xfrm6_protocol_register(&xfrmi_ah6_protocol, IPPROTO_AH); ++ if (err < 0) ++ goto xfrm_proto_ah_failed; ++ err = xfrm6_protocol_register(&xfrmi_ipcomp6_protocol, IPPROTO_COMP); ++ if (err < 0) ++ goto xfrm_proto_comp_failed; ++ ++ return 0; ++ ++xfrm_proto_comp_failed: ++ xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH); ++xfrm_proto_ah_failed: ++ xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP); ++xfrm_proto_esp_failed: ++ return err; ++} ++ ++static void xfrmi6_fini(void) ++{ ++ xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP); ++ xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH); ++ xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP); ++} ++ ++static const struct xfrm_if_cb xfrm_if_cb = { ++ .decode_session = xfrmi_decode_session, ++}; ++ ++static int __init xfrmi_init(void) ++{ ++ const char *msg; ++ int err; ++ ++ pr_info("IPsec XFRM device driver\n"); ++ ++ msg = "tunnel device"; ++ err = register_pernet_device(&xfrmi_net_ops); ++ if (err < 0) ++ goto pernet_dev_failed; ++ ++ msg = "xfrm4 protocols"; ++ err = xfrmi4_init(); ++ if (err < 0) ++ goto xfrmi4_failed; ++ ++ msg = "xfrm6 protocols"; ++ err = xfrmi6_init(); ++ if (err < 0) ++ goto xfrmi6_failed; ++ ++ ++ msg = "netlink interface"; ++ err = rtnl_link_register(&xfrmi_link_ops); ++ if (err < 0) ++ goto rtnl_link_failed; ++ ++ xfrm_if_register_cb(&xfrm_if_cb); ++ ++ return err; ++ ++rtnl_link_failed: ++ xfrmi6_fini(); ++xfrmi6_failed: ++ xfrmi4_fini(); ++xfrmi4_failed: ++ unregister_pernet_device(&xfrmi_net_ops); ++pernet_dev_failed: ++ pr_err("xfrmi init: failed to register %s\n", msg); ++ return err; ++} ++ ++static void __exit xfrmi_fini(void) ++{ ++ xfrm_if_unregister_cb(); ++ rtnl_link_unregister(&xfrmi_link_ops); ++ xfrmi4_fini(); ++ xfrmi6_fini(); ++ unregister_pernet_device(&xfrmi_net_ops); ++} ++ ++module_init(xfrmi_init); ++module_exit(xfrmi_fini); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS_RTNL_LINK("xfrm"); ++MODULE_ALIAS_NETDEV("xfrm0"); ++MODULE_AUTHOR("Steffen Klassert"); ++MODULE_DESCRIPTION("XFRM virtual interface"); +diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c +index bd44a800e7db7..3589c2ee3d6fc 100644 +--- a/net/xfrm/xfrm_user.c ++++ b/net/xfrm/xfrm_user.c +@@ -522,7 +522,7 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs, + struct nlattr *et = attrs[XFRMA_ETIMER_THRESH]; + struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH]; + +- if (re) { ++ if (re && x->replay_esn && x->preplay_esn) { + struct xfrm_replay_state_esn *replay_esn; + replay_esn = nla_data(re); + memcpy(x->replay_esn, replay_esn, +@@ -1037,6 +1037,15 @@ static int xfrm_dump_sa(struct sk_buff *skb, struct netlink_callback *cb) + sizeof(*filter), GFP_KERNEL); + if (filter == NULL) + return -ENOMEM; ++ ++ /* see addr_match(), (prefix length >> 5) << 2 ++ * will be used to compare xfrm_address_t ++ */ ++ if (filter->splen > (sizeof(xfrm_address_t) << 3) || ++ filter->dplen > (sizeof(xfrm_address_t) << 3)) { ++ kfree(filter); ++ return -EINVAL; ++ } + } + + if (attrs[XFRMA_PROTO]) +@@ -2574,7 +2583,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = { + [XFRMA_ALG_COMP] = { .len = sizeof(struct xfrm_algo) }, + [XFRMA_ENCAP] = { .len = sizeof(struct xfrm_encap_tmpl) }, + [XFRMA_TMPL] = { .len = sizeof(struct xfrm_user_tmpl) }, +- [XFRMA_SEC_CTX] = { .len = sizeof(struct xfrm_sec_ctx) }, ++ [XFRMA_SEC_CTX] = { .len = sizeof(struct xfrm_user_sec_ctx) }, + [XFRMA_LTIME_VAL] = { .len = sizeof(struct xfrm_lifetime_cur) }, + [XFRMA_REPLAY_VAL] = { .len = sizeof(struct xfrm_replay_state) }, + [XFRMA_REPLAY_THRESH] = { .type = NLA_U32 }, +diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig +index 44b3315f32352..d90ead61f0def 100644 +--- a/security/integrity/ima/Kconfig ++++ b/security/integrity/ima/Kconfig +@@ -8,7 +8,7 @@ config IMA + select CRYPTO_HMAC + select CRYPTO_SHA1 + select CRYPTO_HASH_INFO +- select TCG_TPM if HAS_IOMEM && !UML ++ select TCG_TPM if HAS_IOMEM + select TCG_TIS if TCG_TPM && X86 + select TCG_CRB if TCG_TPM && ACPI + select TCG_IBMVTPM if TCG_TPM && PPC_PSERIES +diff --git a/sound/core/init.c b/sound/core/init.c +index 45bbc4884ef0f..a127763ae5fbd 100644 +--- a/sound/core/init.c ++++ b/sound/core/init.c +@@ -211,6 +211,7 @@ int snd_card_new(struct device *parent, int idx, const char *xid, + INIT_LIST_HEAD(&card->ctl_files); + spin_lock_init(&card->files_lock); + INIT_LIST_HEAD(&card->files_list); ++ mutex_init(&card->memory_mutex); + #ifdef CONFIG_PM + init_waitqueue_head(&card->power_sleep); + #endif +diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c +index 9aea1d6fb0547..b961a30c2a221 100644 +--- a/sound/core/pcm_memory.c ++++ b/sound/core/pcm_memory.c +@@ -26,6 +26,67 @@ MODULE_PARM_DESC(maximum_substreams, "Maximum substreams with preallocated DMA m + + static const size_t snd_minimum_buffer = 16384; + ++static unsigned long max_alloc_per_card = 32UL * 1024UL * 1024UL; ++module_param(max_alloc_per_card, ulong, 0644); ++MODULE_PARM_DESC(max_alloc_per_card, "Max total allocation bytes per card."); ++ ++static void __update_allocated_size(struct snd_card *card, ssize_t bytes) ++{ ++ card->total_pcm_alloc_bytes += bytes; ++} ++ ++static void update_allocated_size(struct snd_card *card, ssize_t bytes) ++{ ++ mutex_lock(&card->memory_mutex); ++ __update_allocated_size(card, bytes); ++ mutex_unlock(&card->memory_mutex); ++} ++ ++static void decrease_allocated_size(struct snd_card *card, size_t bytes) ++{ ++ mutex_lock(&card->memory_mutex); ++ WARN_ON(card->total_pcm_alloc_bytes < bytes); ++ __update_allocated_size(card, -(ssize_t)bytes); ++ mutex_unlock(&card->memory_mutex); ++} ++ ++static int do_alloc_pages(struct snd_card *card, int type, struct device *dev, ++ size_t size, struct snd_dma_buffer *dmab) ++{ ++ int err; ++ ++ /* check and reserve the requested size */ ++ mutex_lock(&card->memory_mutex); ++ if (max_alloc_per_card && ++ card->total_pcm_alloc_bytes + size > max_alloc_per_card) { ++ mutex_unlock(&card->memory_mutex); ++ return -ENOMEM; ++ } ++ __update_allocated_size(card, size); ++ mutex_unlock(&card->memory_mutex); ++ ++ err = snd_dma_alloc_pages(type, dev, size, dmab); ++ if (!err) { ++ /* the actual allocation size might be bigger than requested, ++ * and we need to correct the account ++ */ ++ if (dmab->bytes != size) ++ update_allocated_size(card, dmab->bytes - size); ++ } else { ++ /* take back on allocation failure */ ++ decrease_allocated_size(card, size); ++ } ++ return err; ++} ++ ++static void do_free_pages(struct snd_card *card, struct snd_dma_buffer *dmab) ++{ ++ if (!dmab->area) ++ return; ++ decrease_allocated_size(card, dmab->bytes); ++ snd_dma_free_pages(dmab); ++ dmab->area = NULL; ++} + + /* + * try to allocate as the large pages as possible. +@@ -36,16 +97,15 @@ static const size_t snd_minimum_buffer = 16384; + static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t size) + { + struct snd_dma_buffer *dmab = &substream->dma_buffer; ++ struct snd_card *card = substream->pcm->card; + size_t orig_size = size; + int err; + + do { +- if ((err = snd_dma_alloc_pages(dmab->dev.type, dmab->dev.dev, +- size, dmab)) < 0) { +- if (err != -ENOMEM) +- return err; /* fatal error */ +- } else +- return 0; ++ err = do_alloc_pages(card, dmab->dev.type, dmab->dev.dev, ++ size, dmab); ++ if (err != -ENOMEM) ++ return err; + size >>= 1; + } while (size >= snd_minimum_buffer); + dmab->bytes = 0; /* tell error */ +@@ -61,10 +121,7 @@ static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t siz + */ + static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream) + { +- if (substream->dma_buffer.area == NULL) +- return; +- snd_dma_free_pages(&substream->dma_buffer); +- substream->dma_buffer.area = NULL; ++ do_free_pages(substream->pcm->card, &substream->dma_buffer); + } + + /** +@@ -129,6 +186,7 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) + { + struct snd_pcm_substream *substream = entry->private_data; ++ struct snd_card *card = substream->pcm->card; + char line[64], str[64]; + size_t size; + struct snd_dma_buffer new_dmab; +@@ -150,9 +208,10 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry, + memset(&new_dmab, 0, sizeof(new_dmab)); + new_dmab.dev = substream->dma_buffer.dev; + if (size > 0) { +- if (snd_dma_alloc_pages(substream->dma_buffer.dev.type, +- substream->dma_buffer.dev.dev, +- size, &new_dmab) < 0) { ++ if (do_alloc_pages(card, ++ substream->dma_buffer.dev.type, ++ substream->dma_buffer.dev.dev, ++ size, &new_dmab) < 0) { + buffer->error = -ENOMEM; + goto unlock; + } +@@ -161,7 +220,7 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry, + substream->buffer_bytes_max = UINT_MAX; + } + if (substream->dma_buffer.area) +- snd_dma_free_pages(&substream->dma_buffer); ++ do_free_pages(card, &substream->dma_buffer); + substream->dma_buffer = new_dmab; + } else { + buffer->error = -EINVAL; +@@ -289,6 +348,7 @@ EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page); + */ + int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) + { ++ struct snd_card *card = substream->pcm->card; + struct snd_pcm_runtime *runtime; + struct snd_dma_buffer *dmab = NULL; + +@@ -317,9 +377,10 @@ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) + if (! dmab) + return -ENOMEM; + dmab->dev = substream->dma_buffer.dev; +- if (snd_dma_alloc_pages(substream->dma_buffer.dev.type, +- substream->dma_buffer.dev.dev, +- size, dmab) < 0) { ++ if (do_alloc_pages(card, ++ substream->dma_buffer.dev.type, ++ substream->dma_buffer.dev.dev, ++ size, dmab) < 0) { + kfree(dmab); + return -ENOMEM; + } +@@ -348,8 +409,10 @@ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream) + if (runtime->dma_area == NULL) + return 0; + if (runtime->dma_buffer_p != &substream->dma_buffer) { ++ struct snd_card *card = substream->pcm->card; ++ + /* it's a newly allocated buffer. release it now. */ +- snd_dma_free_pages(runtime->dma_buffer_p); ++ do_free_pages(card, runtime->dma_buffer_p); + kfree(runtime->dma_buffer_p); + } + snd_pcm_set_runtime_buffer(substream, NULL); +diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c +index 489f996d86bcb..9df0158e89f44 100644 +--- a/sound/hda/hdac_device.c ++++ b/sound/hda/hdac_device.c +@@ -607,7 +607,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_power_up_pm); + int snd_hdac_keep_power_up(struct hdac_device *codec) + { + if (!atomic_inc_not_zero(&codec->in_pm)) { +- int ret = pm_runtime_get_if_in_use(&codec->dev); ++ int ret = pm_runtime_get_if_active(&codec->dev, true); + if (!ret) + return -1; + if (ret < 0) +diff --git a/sound/hda/hdac_regmap.c b/sound/hda/hdac_regmap.c +index 49780399c2849..a035a7d74ce09 100644 +--- a/sound/hda/hdac_regmap.c ++++ b/sound/hda/hdac_regmap.c +@@ -596,10 +596,9 @@ EXPORT_SYMBOL_GPL(snd_hdac_regmap_update_raw_once); + */ + void snd_hdac_regmap_sync(struct hdac_device *codec) + { +- if (codec->regmap) { +- mutex_lock(&codec->regmap_lock); ++ mutex_lock(&codec->regmap_lock); ++ if (codec->regmap) + regcache_sync(codec->regmap); +- mutex_unlock(&codec->regmap_lock); +- } ++ mutex_unlock(&codec->regmap_lock); + } + EXPORT_SYMBOL_GPL(snd_hdac_regmap_sync); +diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c +index e053f0d58bdd0..2f3cfcfcdb9a3 100644 +--- a/sound/pci/emu10k1/emufx.c ++++ b/sound/pci/emu10k1/emufx.c +@@ -1536,14 +1536,8 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input)) + gpr += 2; + + /* Master volume (will be renamed later) */ +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS)); +- A_OP(icode, &ptr, iMAC0, A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS)); ++ for (z = 0; z < 8; z++) ++ A_OP(icode, &ptr, iMAC0, A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS)); + snd_emu10k1_init_mono_control(&controls[nctl++], "Wave Master Playback Volume", gpr, 0); + gpr += 2; + +@@ -1627,102 +1621,14 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input)) + dev_dbg(emu->card->dev, "emufx.c: gpr=0x%x, tmp=0x%x\n", + gpr, tmp); + */ +- /* For the EMU1010: How to get 32bit values from the DSP. High 16bits into L, low 16bits into R. */ +- /* A_P16VIN(0) is delayed by one sample, +- * so all other A_P16VIN channels will need to also be delayed +- */ +- /* Left ADC in. 1 of 2 */ + snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_P16VIN(0x0), A_FXBUS2(0) ); +- /* Right ADC in 1 of 2 */ +- gpr_map[gpr++] = 0x00000000; +- /* Delaying by one sample: instead of copying the input +- * value A_P16VIN to output A_FXBUS2 as in the first channel, +- * we use an auxiliary register, delaying the value by one +- * sample +- */ +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(2) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x1), A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(4) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x2), A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(6) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x3), A_C_00000000, A_C_00000000); +- /* For 96kHz mode */ +- /* Left ADC in. 2 of 2 */ +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0x8) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x4), A_C_00000000, A_C_00000000); +- /* Right ADC in 2 of 2 */ +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xa) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x5), A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xc) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x6), A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xe) ); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x7), A_C_00000000, A_C_00000000); +- /* Pavel Hofman - we still have voices, A_FXBUS2s, and +- * A_P16VINs available - +- * let's add 8 more capture channels - total of 16 +- */ +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x10)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x8), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x12)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x9), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x14)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xa), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x16)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xb), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x18)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xc), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x1a)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xd), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x1c)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xe), +- A_C_00000000, A_C_00000000); +- gpr_map[gpr++] = 0x00000000; +- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp, +- bit_shifter16, +- A_GPR(gpr - 1), +- A_FXBUS2(0x1e)); +- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xf), +- A_C_00000000, A_C_00000000); ++ /* A_P16VIN(0) is delayed by one sample, so all other A_P16VIN channels ++ * will need to also be delayed; we use an auxiliary register for that. */ ++ for (z = 1; z < 0x10; z++) { ++ snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr), A_FXBUS2(z * 2) ); ++ A_OP(icode, &ptr, iACC3, A_GPR(gpr), A_P16VIN(z), A_C_00000000, A_C_00000000); ++ gpr_map[gpr++] = 0x00000000; ++ } + } + + #if 0 +diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c +index 6d8d9fc1da0b0..c0bcbab7b6560 100644 +--- a/sound/pci/hda/patch_realtek.c ++++ b/sound/pci/hda/patch_realtek.c +@@ -9877,6 +9877,7 @@ enum { + ALC897_FIXUP_HP_HSMIC_VERB, + ALC897_FIXUP_LENOVO_HEADSET_MODE, + ALC897_FIXUP_HEADSET_MIC_PIN2, ++ ALC897_FIXUP_UNIS_H3C_X500S, + }; + + static const struct hda_fixup alc662_fixups[] = { +@@ -10316,6 +10317,13 @@ static const struct hda_fixup alc662_fixups[] = { + .chained = true, + .chain_id = ALC897_FIXUP_LENOVO_HEADSET_MODE + }, ++ [ALC897_FIXUP_UNIS_H3C_X500S] = { ++ .type = HDA_FIXUP_VERBS, ++ .v.verbs = (const struct hda_verb[]) { ++ { 0x14, AC_VERB_SET_EAPD_BTLENABLE, 0 }, ++ {} ++ }, ++ }, + }; + + static const struct snd_pci_quirk alc662_fixup_tbl[] = { +@@ -10477,6 +10485,7 @@ static const struct hda_model_fixup alc662_fixup_models[] = { + {.id = ALC662_FIXUP_USI_HEADSET_MODE, .name = "usi-headset"}, + {.id = ALC662_FIXUP_LENOVO_MULTI_CODECS, .name = "dual-codecs"}, + {.id = ALC669_FIXUP_ACER_ASPIRE_ETHOS, .name = "aspire-ethos"}, ++ {.id = ALC897_FIXUP_UNIS_H3C_X500S, .name = "unis-h3c-x500s"}, + {} + }; + +diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c +index 68299ce26d3e4..648e0708007e1 100644 +--- a/sound/soc/codecs/rt5665.c ++++ b/sound/soc/codecs/rt5665.c +@@ -4472,6 +4472,8 @@ static void rt5665_remove(struct snd_soc_component *component) + struct rt5665_priv *rt5665 = snd_soc_component_get_drvdata(component); + + regmap_write(rt5665->regmap, RT5665_RESET, 0); ++ ++ regulator_bulk_disable(ARRAY_SIZE(rt5665->supplies), rt5665->supplies); + } + + #ifdef CONFIG_PM +diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c +index f8445231ad782..fdbfaedda4ce8 100644 +--- a/sound/soc/fsl/fsl_sai.c ++++ b/sound/soc/fsl/fsl_sai.c +@@ -37,6 +37,24 @@ static const struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = { + .list = fsl_sai_rates, + }; + ++/** ++ * fsl_sai_dir_is_synced - Check if stream is synced by the opposite stream ++ * ++ * SAI supports synchronous mode using bit/frame clocks of either Transmitter's ++ * or Receiver's for both streams. This function is used to check if clocks of ++ * the stream's are synced by the opposite stream. ++ * ++ * @sai: SAI context ++ * @dir: stream direction ++ */ ++static inline bool fsl_sai_dir_is_synced(struct fsl_sai *sai, int dir) ++{ ++ int adir = (dir == TX) ? RX : TX; ++ ++ /* current dir in async mode while opposite dir in sync mode */ ++ return !sai->synchronous[dir] && sai->synchronous[adir]; ++} ++ + static irqreturn_t fsl_sai_isr(int irq, void *devid) + { + struct fsl_sai *sai = (struct fsl_sai *)devid; +@@ -523,6 +541,38 @@ static int fsl_sai_hw_free(struct snd_pcm_substream *substream, + return 0; + } + ++static void fsl_sai_config_disable(struct fsl_sai *sai, int dir) ++{ ++ unsigned int ofs = sai->soc_data->reg_offset; ++ bool tx = dir == TX; ++ u32 xcsr, count = 100; ++ ++ regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs), ++ FSL_SAI_CSR_TERE | FSL_SAI_CSR_BCE, 0); ++ ++ /* TERE will remain set till the end of current frame */ ++ do { ++ udelay(10); ++ regmap_read(sai->regmap, FSL_SAI_xCSR(tx, ofs), &xcsr); ++ } while (--count && xcsr & FSL_SAI_CSR_TERE); ++ ++ regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs), ++ FSL_SAI_CSR_FR, FSL_SAI_CSR_FR); ++ ++ /* ++ * For sai master mode, after several open/close sai, ++ * there will be no frame clock, and can't recover ++ * anymore. Add software reset to fix this issue. ++ * This is a hardware bug, and will be fix in the ++ * next sai version. ++ */ ++ if (!sai->is_slave_mode) { ++ /* Software Reset */ ++ regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), FSL_SAI_CSR_SR); ++ /* Clear SR bit to finish the reset */ ++ regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), 0); ++ } ++} + + static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *cpu_dai) +@@ -531,7 +581,9 @@ static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd, + unsigned int ofs = sai->soc_data->reg_offset; + + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; +- u32 xcsr, count = 100; ++ int adir = tx ? RX : TX; ++ int dir = tx ? TX : RX; ++ u32 xcsr; + + /* + * Asynchronous mode: Clear SYNC for both Tx and Rx. +@@ -554,10 +606,22 @@ static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd, + regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs), + FSL_SAI_CSR_FRDE, FSL_SAI_CSR_FRDE); + +- regmap_update_bits(sai->regmap, FSL_SAI_RCSR(ofs), +- FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE); +- regmap_update_bits(sai->regmap, FSL_SAI_TCSR(ofs), ++ regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs), + FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE); ++ /* ++ * Enable the opposite direction for synchronous mode ++ * 1. Tx sync with Rx: only set RE for Rx; set TE & RE for Tx ++ * 2. Rx sync with Tx: only set TE for Tx; set RE & TE for Rx ++ * ++ * RM recommends to enable RE after TE for case 1 and to enable ++ * TE after RE for case 2, but we here may not always guarantee ++ * that happens: "arecord 1.wav; aplay 2.wav" in case 1 enables ++ * TE after RE, which is against what RM recommends but should ++ * be safe to do, judging by years of testing results. ++ */ ++ if (fsl_sai_dir_is_synced(sai, adir)) ++ regmap_update_bits(sai->regmap, FSL_SAI_xCSR((!tx), ofs), ++ FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE); + + regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs), + FSL_SAI_CSR_xIE_MASK, FSL_SAI_FLAGS); +@@ -572,43 +636,23 @@ static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd, + + /* Check if the opposite FRDE is also disabled */ + regmap_read(sai->regmap, FSL_SAI_xCSR(!tx, ofs), &xcsr); +- if (!(xcsr & FSL_SAI_CSR_FRDE)) { +- /* Disable both directions and reset their FIFOs */ +- regmap_update_bits(sai->regmap, FSL_SAI_TCSR(ofs), +- FSL_SAI_CSR_TERE, 0); +- regmap_update_bits(sai->regmap, FSL_SAI_RCSR(ofs), +- FSL_SAI_CSR_TERE, 0); +- +- /* TERE will remain set till the end of current frame */ +- do { +- udelay(10); +- regmap_read(sai->regmap, +- FSL_SAI_xCSR(tx, ofs), &xcsr); +- } while (--count && xcsr & FSL_SAI_CSR_TERE); +- +- regmap_update_bits(sai->regmap, FSL_SAI_TCSR(ofs), +- FSL_SAI_CSR_FR, FSL_SAI_CSR_FR); +- regmap_update_bits(sai->regmap, FSL_SAI_RCSR(ofs), +- FSL_SAI_CSR_FR, FSL_SAI_CSR_FR); +- +- /* +- * For sai master mode, after several open/close sai, +- * there will be no frame clock, and can't recover +- * anymore. Add software reset to fix this issue. +- * This is a hardware bug, and will be fix in the +- * next sai version. +- */ +- if (!sai->is_slave_mode) { +- /* Software Reset for both Tx and Rx */ +- regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), +- FSL_SAI_CSR_SR); +- regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), +- FSL_SAI_CSR_SR); +- /* Clear SR bit to finish the reset */ +- regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), 0); +- regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), 0); +- } +- } ++ ++ /* ++ * If opposite stream provides clocks for synchronous mode and ++ * it is inactive, disable it before disabling the current one ++ */ ++ if (fsl_sai_dir_is_synced(sai, adir) && !(xcsr & FSL_SAI_CSR_FRDE)) ++ fsl_sai_config_disable(sai, adir); ++ ++ /* ++ * Disable current stream if either of: ++ * 1. current stream doesn't provide clocks for synchronous mode ++ * 2. current stream provides clocks for synchronous mode but no ++ * more stream is active. ++ */ ++ if (!fsl_sai_dir_is_synced(sai, dir) || !(xcsr & FSL_SAI_CSR_FRDE)) ++ fsl_sai_config_disable(sai, dir); ++ + break; + default: + return -EINVAL; +@@ -766,6 +810,8 @@ static struct reg_default fsl_sai_reg_defaults_ofs8[] = { + {FSL_SAI_RCR4(8), 0}, + {FSL_SAI_RCR5(8), 0}, + {FSL_SAI_RMR, 0}, ++ {FSL_SAI_MCTL, 0}, ++ {FSL_SAI_MDIV, 0}, + }; + + static bool fsl_sai_readable_reg(struct device *dev, unsigned int reg) +@@ -806,6 +852,18 @@ static bool fsl_sai_readable_reg(struct device *dev, unsigned int reg) + case FSL_SAI_RFR6: + case FSL_SAI_RFR7: + case FSL_SAI_RMR: ++ case FSL_SAI_MCTL: ++ case FSL_SAI_MDIV: ++ case FSL_SAI_VERID: ++ case FSL_SAI_PARAM: ++ case FSL_SAI_TTCTN: ++ case FSL_SAI_RTCTN: ++ case FSL_SAI_TTCTL: ++ case FSL_SAI_TBCTN: ++ case FSL_SAI_TTCAP: ++ case FSL_SAI_RTCTL: ++ case FSL_SAI_RBCTN: ++ case FSL_SAI_RTCAP: + return true; + default: + return false; +@@ -820,6 +878,10 @@ static bool fsl_sai_volatile_reg(struct device *dev, unsigned int reg) + if (reg == FSL_SAI_TCSR(ofs) || reg == FSL_SAI_RCSR(ofs)) + return true; + ++ /* Set VERID and PARAM be volatile for reading value in probe */ ++ if (ofs == 8 && (reg == FSL_SAI_VERID || reg == FSL_SAI_PARAM)) ++ return true; ++ + switch (reg) { + case FSL_SAI_TFR0: + case FSL_SAI_TFR1: +@@ -873,6 +935,10 @@ static bool fsl_sai_writeable_reg(struct device *dev, unsigned int reg) + case FSL_SAI_TDR7: + case FSL_SAI_TMR: + case FSL_SAI_RMR: ++ case FSL_SAI_MCTL: ++ case FSL_SAI_MDIV: ++ case FSL_SAI_TTCTL: ++ case FSL_SAI_RTCTL: + return true; + default: + return false; +@@ -921,6 +987,7 @@ static int fsl_sai_probe(struct platform_device *pdev) + + if (sai->soc_data->reg_offset == 8) { + fsl_sai_regmap_config.reg_defaults = fsl_sai_reg_defaults_ofs8; ++ fsl_sai_regmap_config.max_register = FSL_SAI_MDIV; + fsl_sai_regmap_config.num_reg_defaults = + ARRAY_SIZE(fsl_sai_reg_defaults_ofs8); + } +diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h +index afaef20272342..771990396804c 100644 +--- a/sound/soc/fsl/fsl_sai.h ++++ b/sound/soc/fsl/fsl_sai.h +@@ -14,6 +14,8 @@ + SNDRV_PCM_FMTBIT_S32_LE) + + /* SAI Register Map Register */ ++#define FSL_SAI_VERID 0x00 /* SAI Version ID Register */ ++#define FSL_SAI_PARAM 0x04 /* SAI Parameter Register */ + #define FSL_SAI_TCSR(ofs) (0x00 + ofs) /* SAI Transmit Control */ + #define FSL_SAI_TCR1(ofs) (0x04 + ofs) /* SAI Transmit Configuration 1 */ + #define FSL_SAI_TCR2(ofs) (0x08 + ofs) /* SAI Transmit Configuration 2 */ +@@ -37,6 +39,10 @@ + #define FSL_SAI_TFR6 0x58 /* SAI Transmit FIFO 6 */ + #define FSL_SAI_TFR7 0x5C /* SAI Transmit FIFO 7 */ + #define FSL_SAI_TMR 0x60 /* SAI Transmit Mask */ ++#define FSL_SAI_TTCTL 0x70 /* SAI Transmit Timestamp Control Register */ ++#define FSL_SAI_TTCTN 0x74 /* SAI Transmit Timestamp Counter Register */ ++#define FSL_SAI_TBCTN 0x78 /* SAI Transmit Bit Counter Register */ ++#define FSL_SAI_TTCAP 0x7C /* SAI Transmit Timestamp Capture */ + #define FSL_SAI_RCSR(ofs) (0x80 + ofs) /* SAI Receive Control */ + #define FSL_SAI_RCR1(ofs) (0x84 + ofs)/* SAI Receive Configuration 1 */ + #define FSL_SAI_RCR2(ofs) (0x88 + ofs) /* SAI Receive Configuration 2 */ +@@ -60,6 +66,13 @@ + #define FSL_SAI_RFR6 0xd8 /* SAI Receive FIFO 6 */ + #define FSL_SAI_RFR7 0xdc /* SAI Receive FIFO 7 */ + #define FSL_SAI_RMR 0xe0 /* SAI Receive Mask */ ++#define FSL_SAI_RTCTL 0xf0 /* SAI Receive Timestamp Control Register */ ++#define FSL_SAI_RTCTN 0xf4 /* SAI Receive Timestamp Counter Register */ ++#define FSL_SAI_RBCTN 0xf8 /* SAI Receive Bit Counter Register */ ++#define FSL_SAI_RTCAP 0xfc /* SAI Receive Timestamp Capture */ ++ ++#define FSL_SAI_MCTL 0x100 /* SAI MCLK Control Register */ ++#define FSL_SAI_MDIV 0x104 /* SAI MCLK Divide Register */ + + #define FSL_SAI_xCSR(tx, ofs) (tx ? FSL_SAI_TCSR(ofs) : FSL_SAI_RCSR(ofs)) + #define FSL_SAI_xCR1(tx, ofs) (tx ? FSL_SAI_TCR1(ofs) : FSL_SAI_RCR1(ofs)) +@@ -73,6 +86,8 @@ + + /* SAI Transmit/Receive Control Register */ + #define FSL_SAI_CSR_TERE BIT(31) ++#define FSL_SAI_CSR_SE BIT(30) ++#define FSL_SAI_CSR_BCE BIT(28) + #define FSL_SAI_CSR_FR BIT(25) + #define FSL_SAI_CSR_SR BIT(24) + #define FSL_SAI_CSR_xF_SHIFT 16 +@@ -106,6 +121,7 @@ + #define FSL_SAI_CR2_MSEL(ID) ((ID) << 26) + #define FSL_SAI_CR2_BCP BIT(25) + #define FSL_SAI_CR2_BCD_MSTR BIT(24) ++#define FSL_SAI_CR2_BYP BIT(23) /* BCLK bypass */ + #define FSL_SAI_CR2_DIV_MASK 0xff + + /* SAI Transmit and Receive Configuration 3 Register */ +@@ -115,6 +131,13 @@ + #define FSL_SAI_CR3_WDFL_MASK 0x1f + + /* SAI Transmit and Receive Configuration 4 Register */ ++ ++#define FSL_SAI_CR4_FCONT BIT(28) ++#define FSL_SAI_CR4_FCOMB_SHIFT BIT(26) ++#define FSL_SAI_CR4_FCOMB_SOFT BIT(27) ++#define FSL_SAI_CR4_FCOMB_MASK (0x3 << 26) ++#define FSL_SAI_CR4_FPACK_8 (0x2 << 24) ++#define FSL_SAI_CR4_FPACK_16 (0x3 << 24) + #define FSL_SAI_CR4_FRSZ(x) (((x) - 1) << 16) + #define FSL_SAI_CR4_FRSZ_MASK (0x1f << 16) + #define FSL_SAI_CR4_SYWD(x) (((x) - 1) << 8) +@@ -132,6 +155,43 @@ + #define FSL_SAI_CR5_FBT(x) ((x) << 8) + #define FSL_SAI_CR5_FBT_MASK (0x1f << 8) + ++/* SAI MCLK Control Register */ ++#define FSL_SAI_MCTL_MCLK_EN BIT(30) /* MCLK Enable */ ++#define FSL_SAI_MCTL_MSEL_MASK (0x3 << 24) ++#define FSL_SAI_MCTL_MSEL(ID) ((ID) << 24) ++#define FSL_SAI_MCTL_MSEL_BUS 0 ++#define FSL_SAI_MCTL_MSEL_MCLK1 BIT(24) ++#define FSL_SAI_MCTL_MSEL_MCLK2 BIT(25) ++#define FSL_SAI_MCTL_MSEL_MCLK3 (BIT(24) | BIT(25)) ++#define FSL_SAI_MCTL_DIV_EN BIT(23) ++#define FSL_SAI_MCTL_DIV_MASK 0xFF ++ ++/* SAI VERID Register */ ++#define FSL_SAI_VERID_MAJOR_SHIFT 24 ++#define FSL_SAI_VERID_MAJOR_MASK GENMASK(31, 24) ++#define FSL_SAI_VERID_MINOR_SHIFT 16 ++#define FSL_SAI_VERID_MINOR_MASK GENMASK(23, 16) ++#define FSL_SAI_VERID_FEATURE_SHIFT 0 ++#define FSL_SAI_VERID_FEATURE_MASK GENMASK(15, 0) ++#define FSL_SAI_VERID_EFIFO_EN BIT(0) ++#define FSL_SAI_VERID_TSTMP_EN BIT(1) ++ ++/* SAI PARAM Register */ ++#define FSL_SAI_PARAM_SPF_SHIFT 16 ++#define FSL_SAI_PARAM_SPF_MASK GENMASK(19, 16) ++#define FSL_SAI_PARAM_WPF_SHIFT 8 ++#define FSL_SAI_PARAM_WPF_MASK GENMASK(11, 8) ++#define FSL_SAI_PARAM_DLN_MASK GENMASK(3, 0) ++ ++/* SAI MCLK Divide Register */ ++#define FSL_SAI_MDIV_MASK 0xFFFFF ++ ++/* SAI timestamp and bitcounter */ ++#define FSL_SAI_xTCTL_TSEN BIT(0) ++#define FSL_SAI_xTCTL_TSINC BIT(1) ++#define FSL_SAI_xTCTL_RTSC BIT(8) ++#define FSL_SAI_xTCTL_RBC BIT(9) ++ + /* SAI type */ + #define FSL_SAI_DMA BIT(0) + #define FSL_SAI_USE_AC97 BIT(1) +diff --git a/sound/soc/meson/axg-tdm-formatter.c b/sound/soc/meson/axg-tdm-formatter.c +index f7e8e9da68a06..981dbaaa6f3b9 100644 +--- a/sound/soc/meson/axg-tdm-formatter.c ++++ b/sound/soc/meson/axg-tdm-formatter.c +@@ -30,27 +30,32 @@ int axg_tdm_formatter_set_channel_masks(struct regmap *map, + struct axg_tdm_stream *ts, + unsigned int offset) + { +- unsigned int val, ch = ts->channels; +- unsigned long mask; +- int i, j; ++ unsigned int ch = ts->channels; ++ u32 val[AXG_TDM_NUM_LANES]; ++ int i, j, k; ++ ++ /* ++ * We need to mimick the slot distribution used by the HW to keep the ++ * channel placement consistent regardless of the number of channel ++ * in the stream. This is why the odd algorithm below is used. ++ */ ++ memset(val, 0, sizeof(*val) * AXG_TDM_NUM_LANES); + + /* + * Distribute the channels of the stream over the available slots +- * of each TDM lane ++ * of each TDM lane. We need to go over the 32 slots ... + */ +- for (i = 0; i < AXG_TDM_NUM_LANES; i++) { +- val = 0; +- mask = ts->mask[i]; +- +- for (j = find_first_bit(&mask, 32); +- (j < 32) && ch; +- j = find_next_bit(&mask, 32, j + 1)) { +- val |= 1 << j; +- ch -= 1; ++ for (i = 0; (i < 32) && ch; i += 2) { ++ /* ... of all the lanes ... */ ++ for (j = 0; j < AXG_TDM_NUM_LANES; j++) { ++ /* ... then distribute the channels in pairs */ ++ for (k = 0; k < 2; k++) { ++ if ((BIT(i + k) & ts->mask[j]) && ch) { ++ val[j] |= BIT(i + k); ++ ch -= 1; ++ } ++ } + } +- +- regmap_write(map, offset, val); +- offset += regmap_get_reg_stride(map); + } + + /* +@@ -63,6 +68,11 @@ int axg_tdm_formatter_set_channel_masks(struct regmap *map, + return -EINVAL; + } + ++ for (i = 0; i < AXG_TDM_NUM_LANES; i++) { ++ regmap_write(map, offset, val[i]); ++ offset += regmap_get_reg_stride(map); ++ } ++ + return 0; + } + EXPORT_SYMBOL_GPL(axg_tdm_formatter_set_channel_masks); +diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h +index 06657412c6d8e..96d32766e93c6 100644 +--- a/sound/usb/quirks-table.h ++++ b/sound/usb/quirks-table.h +@@ -3910,5 +3910,34 @@ ALC1220_VB_DESKTOP(0x26ce, 0x0a01), /* Asrock TRX40 Creator */ + } + } + }, ++{ ++ /* Advanced modes of the Mythware XA001AU. ++ * For the standard mode, Mythware XA001AU has ID ffad:a001 ++ */ ++ USB_DEVICE_VENDOR_SPEC(0xffad, 0xa001), ++ .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { ++ .vendor_name = "Mythware", ++ .product_name = "XA001AU", ++ .ifnum = QUIRK_ANY_INTERFACE, ++ .type = QUIRK_COMPOSITE, ++ .data = (const struct snd_usb_audio_quirk[]) { ++ { ++ .ifnum = 0, ++ .type = QUIRK_IGNORE_INTERFACE, ++ }, ++ { ++ .ifnum = 1, ++ .type = QUIRK_AUDIO_STANDARD_INTERFACE, ++ }, ++ { ++ .ifnum = 2, ++ .type = QUIRK_AUDIO_STANDARD_INTERFACE, ++ }, ++ { ++ .ifnum = -1 ++ } ++ } ++ } ++}, + + #undef USB_DEVICE_VENDOR_SPEC +diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh +index 472bd023e2a5f..b501b366367f7 100755 +--- a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh ++++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh +@@ -72,7 +72,8 @@ test_span_gre_ttl() + + RET=0 + +- mirror_install $swp1 ingress $tundev "matchall $tcflags" ++ mirror_install $swp1 ingress $tundev \ ++ "prot ip flower $tcflags ip_prot icmp" + tc filter add dev $h3 ingress pref 77 prot $prot \ + flower ip_ttl 50 action pass + +diff --git a/tools/testing/selftests/net/forwarding/tc_flower.sh b/tools/testing/selftests/net/forwarding/tc_flower.sh +index b11d8e6b5bc14..b7cdf75efb5f9 100755 +--- a/tools/testing/selftests/net/forwarding/tc_flower.sh ++++ b/tools/testing/selftests/net/forwarding/tc_flower.sh +@@ -49,8 +49,8 @@ match_dst_mac_test() + tc_check_packets "dev $h2 ingress" 101 1 + check_fail $? "Matched on a wrong filter" + +- tc_check_packets "dev $h2 ingress" 102 1 +- check_err $? "Did not match on correct filter" ++ tc_check_packets "dev $h2 ingress" 102 0 ++ check_fail $? "Did not match on correct filter" + + tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower + tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower +@@ -75,8 +75,8 @@ match_src_mac_test() + tc_check_packets "dev $h2 ingress" 101 1 + check_fail $? "Matched on a wrong filter" + +- tc_check_packets "dev $h2 ingress" 102 1 +- check_err $? "Did not match on correct filter" ++ tc_check_packets "dev $h2 ingress" 102 0 ++ check_fail $? "Did not match on correct filter" + + tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower + tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower |