diff options
Diffstat (limited to '1270_linux-4.19.271.patch')
| -rw-r--r-- | 1270_linux-4.19.271.patch | 1644 |
1 files changed, 1644 insertions, 0 deletions
diff --git a/1270_linux-4.19.271.patch b/1270_linux-4.19.271.patch new file mode 100644 index 00000000..ebd730bb --- /dev/null +++ b/1270_linux-4.19.271.patch @@ -0,0 +1,1644 @@ +diff --git a/Makefile b/Makefile +index 11c68e88776a5..560507d1f7a10 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,7 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + VERSION = 4 + PATCHLEVEL = 19 +-SUBLEVEL = 270 ++SUBLEVEL = 271 + EXTRAVERSION = + NAME = "People's Front" + +diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c +index 9692ccc583bb3..a3a570df6be1c 100644 +--- a/arch/x86/kernel/fpu/init.c ++++ b/arch/x86/kernel/fpu/init.c +@@ -138,9 +138,6 @@ static void __init fpu__init_system_generic(void) + unsigned int fpu_kernel_xstate_size; + EXPORT_SYMBOL_GPL(fpu_kernel_xstate_size); + +-/* Get alignment of the TYPE. */ +-#define TYPE_ALIGN(TYPE) offsetof(struct { char x; TYPE test; }, test) +- + /* + * Enforce that 'MEMBER' is the last field of 'TYPE'. + * +@@ -148,8 +145,8 @@ EXPORT_SYMBOL_GPL(fpu_kernel_xstate_size); + * because that's how C aligns structs. + */ + #define CHECK_MEMBER_AT_END_OF(TYPE, MEMBER) \ +- BUILD_BUG_ON(sizeof(TYPE) != ALIGN(offsetofend(TYPE, MEMBER), \ +- TYPE_ALIGN(TYPE))) ++ BUILD_BUG_ON(sizeof(TYPE) != \ ++ ALIGN(offsetofend(TYPE, MEMBER), _Alignof(TYPE))) + + /* + * We append the 'struct fpu' to the task_struct: +diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +index c05ef7f1d7b66..99a40385267cd 100644 +--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c ++++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +@@ -551,6 +551,11 @@ static noinline void axi_chan_handle_err(struct axi_dma_chan *chan, u32 status) + + /* The bad descriptor currently is in the head of vc list */ + vd = vchan_next_desc(&chan->vc); ++ if (!vd) { ++ dev_err(chan2dev(chan), "BUG: %s, IRQ with no descriptors\n", ++ axi_chan_name(chan)); ++ goto out; ++ } + /* Remove the completed descriptor from issued list */ + list_del(&vd->node); + +@@ -565,6 +570,7 @@ static noinline void axi_chan_handle_err(struct axi_dma_chan *chan, u32 status) + /* Try to restart the controller */ + axi_chan_start_first_queued(chan); + ++out: + spin_unlock_irqrestore(&chan->vc.lock, flags); + } + +diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c +index 2e3ef0eb6e821..e50dd4030d908 100644 +--- a/drivers/firmware/google/gsmi.c ++++ b/drivers/firmware/google/gsmi.c +@@ -343,9 +343,10 @@ static efi_status_t gsmi_get_variable(efi_char16_t *name, + memcpy(data, gsmi_dev.data_buf->start, *data_size); + + /* All variables are have the following attributes */ +- *attr = EFI_VARIABLE_NON_VOLATILE | +- EFI_VARIABLE_BOOTSERVICE_ACCESS | +- EFI_VARIABLE_RUNTIME_ACCESS; ++ if (attr) ++ *attr = EFI_VARIABLE_NON_VOLATILE | ++ EFI_VARIABLE_BOOTSERVICE_ACCESS | ++ EFI_VARIABLE_RUNTIME_ACCESS; + } + + spin_unlock_irqrestore(&gsmi_dev.lock, flags); +diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h +index a2706086b9c7d..10cb50b90d7f3 100644 +--- a/drivers/infiniband/ulp/srp/ib_srp.h ++++ b/drivers/infiniband/ulp/srp/ib_srp.h +@@ -63,12 +63,14 @@ enum { + SRP_DEFAULT_CMD_SQ_SIZE = SRP_DEFAULT_QUEUE_SIZE - SRP_RSP_SQ_SIZE - + SRP_TSK_MGMT_SQ_SIZE, + +- SRP_TAG_NO_REQ = ~0U, +- SRP_TAG_TSK_MGMT = 1U << 31, +- + SRP_MAX_PAGES_PER_MR = 512, + }; + ++enum { ++ SRP_TAG_NO_REQ = ~0U, ++ SRP_TAG_TSK_MGMT = BIT(31), ++}; ++ + enum srp_target_state { + SRP_TARGET_SCANNING, + SRP_TARGET_LIVE, +diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c +index c4584184525f9..757eb175611fb 100644 +--- a/drivers/mmc/host/sunxi-mmc.c ++++ b/drivers/mmc/host/sunxi-mmc.c +@@ -1441,9 +1441,11 @@ static int sunxi_mmc_remove(struct platform_device *pdev) + struct sunxi_mmc_host *host = mmc_priv(mmc); + + mmc_remove_host(mmc); +- pm_runtime_force_suspend(&pdev->dev); +- disable_irq(host->irq); +- sunxi_mmc_disable(host); ++ pm_runtime_disable(&pdev->dev); ++ if (!pm_runtime_status_suspended(&pdev->dev)) { ++ disable_irq(host->irq); ++ sunxi_mmc_disable(host); ++ } + dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma); + mmc_free_host(mmc); + +diff --git a/drivers/staging/comedi/drivers/adv_pci1760.c b/drivers/staging/comedi/drivers/adv_pci1760.c +index f460f21efb90c..0f6faf263c82c 100644 +--- a/drivers/staging/comedi/drivers/adv_pci1760.c ++++ b/drivers/staging/comedi/drivers/adv_pci1760.c +@@ -59,7 +59,7 @@ + #define PCI1760_CMD_CLR_IMB2 0x00 /* Clears IMB2 */ + #define PCI1760_CMD_SET_DO 0x01 /* Set output state */ + #define PCI1760_CMD_GET_DO 0x02 /* Read output status */ +-#define PCI1760_CMD_GET_STATUS 0x03 /* Read current status */ ++#define PCI1760_CMD_GET_STATUS 0x07 /* Read current status */ + #define PCI1760_CMD_GET_FW_VER 0x0e /* Read firmware version */ + #define PCI1760_CMD_GET_HW_VER 0x0f /* Read hardware version */ + #define PCI1760_CMD_SET_PWM_HI(x) (0x10 + (x) * 2) /* Set "hi" period */ +diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c +index 3ba9ed36d6362..50c4058a00e6a 100644 +--- a/drivers/tty/serial/atmel_serial.c ++++ b/drivers/tty/serial/atmel_serial.c +@@ -2511,13 +2511,7 @@ static void __init atmel_console_get_options(struct uart_port *port, int *baud, + else if (mr == ATMEL_US_PAR_ODD) + *parity = 'o'; + +- /* +- * The serial core only rounds down when matching this to a +- * supported baud rate. Make sure we don't end up slightly +- * lower than one of those, as it would make us fall through +- * to a much lower baud rate than we really want. +- */ +- *baud = port->uartclk / (16 * (quot - 1)); ++ *baud = port->uartclk / (16 * quot); + } + + static int __init atmel_console_setup(struct console *co, char *options) +diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c +index 447990006d688..4b035d61b280a 100644 +--- a/drivers/tty/serial/pch_uart.c ++++ b/drivers/tty/serial/pch_uart.c +@@ -792,7 +792,7 @@ static void pch_dma_tx_complete(void *arg) + } + xmit->tail &= UART_XMIT_SIZE - 1; + async_tx_ack(priv->desc_tx); +- dma_unmap_sg(port->dev, sg, priv->orig_nent, DMA_TO_DEVICE); ++ dma_unmap_sg(port->dev, priv->sg_tx_p, priv->orig_nent, DMA_TO_DEVICE); + priv->tx_dma_use = 0; + priv->nent = 0; + priv->orig_nent = 0; +diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c +index d1a7f22cb3a92..af9fe76745c36 100644 +--- a/drivers/usb/core/hub.c ++++ b/drivers/usb/core/hub.c +@@ -40,6 +40,9 @@ + #define USB_PRODUCT_USB5534B 0x5534 + #define USB_VENDOR_CYPRESS 0x04b4 + #define USB_PRODUCT_CY7C65632 0x6570 ++#define USB_VENDOR_TEXAS_INSTRUMENTS 0x0451 ++#define USB_PRODUCT_TUSB8041_USB3 0x8140 ++#define USB_PRODUCT_TUSB8041_USB2 0x8142 + #define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01 + #define HUB_QUIRK_DISABLE_AUTOSUSPEND 0x02 + +@@ -5515,6 +5518,16 @@ static const struct usb_device_id hub_id_table[] = { + .idVendor = USB_VENDOR_GENESYS_LOGIC, + .bInterfaceClass = USB_CLASS_HUB, + .driver_info = HUB_QUIRK_CHECK_PORT_AUTOSUSPEND}, ++ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR ++ | USB_DEVICE_ID_MATCH_PRODUCT, ++ .idVendor = USB_VENDOR_TEXAS_INSTRUMENTS, ++ .idProduct = USB_PRODUCT_TUSB8041_USB2, ++ .driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND}, ++ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR ++ | USB_DEVICE_ID_MATCH_PRODUCT, ++ .idVendor = USB_VENDOR_TEXAS_INSTRUMENTS, ++ .idProduct = USB_PRODUCT_TUSB8041_USB3, ++ .driver_info = HUB_QUIRK_DISABLE_AUTOSUSPEND}, + { .match_flags = USB_DEVICE_ID_MATCH_DEV_CLASS, + .bDeviceClass = USB_CLASS_HUB}, + { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, +diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c +index 10b4612df8a77..d01fd211566e8 100644 +--- a/drivers/usb/gadget/function/f_ncm.c ++++ b/drivers/usb/gadget/function/f_ncm.c +@@ -86,7 +86,9 @@ static inline struct f_ncm *func_to_ncm(struct usb_function *f) + /* peak (theoretical) bulk transfer rate in bits-per-second */ + static inline unsigned ncm_bitrate(struct usb_gadget *g) + { +- if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS) ++ if (!g) ++ return 0; ++ else if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER_PLUS) + return 4250000000U; + else if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER) + return 3750000000U; +diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c +index a9f8eb8e1c767..0d44d3103d146 100644 +--- a/drivers/usb/gadget/legacy/webcam.c ++++ b/drivers/usb/gadget/legacy/webcam.c +@@ -292,6 +292,7 @@ static const struct uvc_descriptor_header * const uvc_fs_streaming_cls[] = { + (const struct uvc_descriptor_header *) &uvc_format_yuv, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p, ++ (const struct uvc_descriptor_header *) &uvc_color_matching, + (const struct uvc_descriptor_header *) &uvc_format_mjpg, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p, +@@ -304,6 +305,7 @@ static const struct uvc_descriptor_header * const uvc_hs_streaming_cls[] = { + (const struct uvc_descriptor_header *) &uvc_format_yuv, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p, ++ (const struct uvc_descriptor_header *) &uvc_color_matching, + (const struct uvc_descriptor_header *) &uvc_format_mjpg, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p, +@@ -316,6 +318,7 @@ static const struct uvc_descriptor_header * const uvc_ss_streaming_cls[] = { + (const struct uvc_descriptor_header *) &uvc_format_yuv, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p, + (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p, ++ (const struct uvc_descriptor_header *) &uvc_color_matching, + (const struct uvc_descriptor_header *) &uvc_format_mjpg, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p, + (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p, +diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c +index 0a9fd2022acfa..768f8a93f19e3 100644 +--- a/drivers/usb/host/ehci-fsl.c ++++ b/drivers/usb/host/ehci-fsl.c +@@ -28,7 +28,7 @@ + #include "ehci-fsl.h" + + #define DRIVER_DESC "Freescale EHCI Host controller driver" +-#define DRV_NAME "ehci-fsl" ++#define DRV_NAME "fsl-ehci" + + static struct hc_driver __read_mostly fsl_ehci_hc_driver; + +diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c +index 7f640603b1033..55bd970290177 100644 +--- a/drivers/usb/host/xhci-pci.c ++++ b/drivers/usb/host/xhci-pci.c +@@ -378,6 +378,8 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) + /* USB-2 and USB-3 roothubs initialized, allow runtime pm suspend */ + pm_runtime_put_noidle(&dev->dev); + ++ dma_set_max_seg_size(&dev->dev, UINT_MAX); ++ + return 0; + + put_usb3_hcd: +diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c +index e18b675fb7afe..aa4c5b43fb784 100644 +--- a/drivers/usb/host/xhci-ring.c ++++ b/drivers/usb/host/xhci-ring.c +@@ -896,7 +896,10 @@ static void xhci_kill_endpoint_urbs(struct xhci_hcd *xhci, + struct xhci_virt_ep *ep; + struct xhci_ring *ring; + +- ep = &xhci->devs[slot_id]->eps[ep_index]; ++ ep = xhci_get_virt_ep(xhci, slot_id, ep_index); ++ if (!ep) ++ return; ++ + if ((ep->ep_state & EP_HAS_STREAMS) || + (ep->ep_state & EP_GETTING_NO_STREAMS)) { + int stream_id; +diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c +index 3a1ed63d73349..13c10ebde296e 100644 +--- a/drivers/usb/host/xhci.c ++++ b/drivers/usb/host/xhci.c +@@ -3830,6 +3830,7 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct xhci_virt_device *virt_dev; + struct xhci_slot_ctx *slot_ctx; ++ unsigned long flags; + int i, ret; + + /* +@@ -3859,7 +3860,11 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) + xhci_debugfs_remove_slot(xhci, udev->slot_id); + virt_dev->udev = NULL; + xhci_disable_slot(xhci, udev->slot_id); ++ ++ spin_lock_irqsave(&xhci->lock, flags); + xhci_free_virt_device(xhci, udev->slot_id); ++ spin_unlock_irqrestore(&xhci->lock, flags); ++ + } + + int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) +@@ -4912,6 +4917,7 @@ static int xhci_enable_usb3_lpm_timeout(struct usb_hcd *hcd, + struct usb_device *udev, enum usb3_link_state state) + { + struct xhci_hcd *xhci; ++ struct xhci_port *port; + u16 hub_encoded_timeout; + int mel; + int ret; +@@ -4925,6 +4931,13 @@ static int xhci_enable_usb3_lpm_timeout(struct usb_hcd *hcd, + !xhci->devs[udev->slot_id]) + return USB3_LPM_DISABLED; + ++ /* If connected to root port then check port can handle lpm */ ++ if (udev->parent && !udev->parent->parent) { ++ port = xhci->usb3_rhub.ports[udev->portnum - 1]; ++ if (port->lpm_incapable) ++ return USB3_LPM_DISABLED; ++ } ++ + hub_encoded_timeout = xhci_calculate_lpm_timeout(hcd, udev, state); + mel = calculate_max_exit_latency(udev, state, hub_encoded_timeout); + if (mel < 0) { +diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h +index 029ffcb13d62e..f2bf3431cd6f4 100644 +--- a/drivers/usb/host/xhci.h ++++ b/drivers/usb/host/xhci.h +@@ -1723,6 +1723,7 @@ struct xhci_port { + int hcd_portnum; + struct xhci_hub *rhub; + struct xhci_port_cap *port_cap; ++ unsigned int lpm_incapable:1; + }; + + struct xhci_hub { +diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c +index 07d6bc63be969..8b04d27059203 100644 +--- a/drivers/usb/misc/iowarrior.c ++++ b/drivers/usb/misc/iowarrior.c +@@ -832,7 +832,7 @@ static int iowarrior_probe(struct usb_interface *interface, + break; + + case USB_DEVICE_ID_CODEMERCS_IOW100: +- dev->report_size = 13; ++ dev->report_size = 12; + break; + } + } +diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c +index f1acc6f686a96..7932a65324d2f 100644 +--- a/drivers/usb/serial/cp210x.c ++++ b/drivers/usb/serial/cp210x.c +@@ -61,6 +61,7 @@ static const struct usb_device_id id_table[] = { + { USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */ + { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */ + { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */ ++ { USB_DEVICE(0x0908, 0x0070) }, /* Siemens SCALANCE LPE-9000 USB Serial Console */ + { USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */ + { USB_DEVICE(0x0988, 0x0578) }, /* Teraoka AD2000 */ + { USB_DEVICE(0x0B00, 0x3070) }, /* Ingenico 3070 */ +diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c +index 57bef990382b1..48b66656dca8e 100644 +--- a/drivers/usb/serial/option.c ++++ b/drivers/usb/serial/option.c +@@ -255,10 +255,16 @@ static void option_instat_callback(struct urb *urb); + #define QUECTEL_PRODUCT_EP06 0x0306 + #define QUECTEL_PRODUCT_EM05G 0x030a + #define QUECTEL_PRODUCT_EM060K 0x030b ++#define QUECTEL_PRODUCT_EM05G_CS 0x030c ++#define QUECTEL_PRODUCT_EM05CN_SG 0x0310 + #define QUECTEL_PRODUCT_EM05G_SG 0x0311 ++#define QUECTEL_PRODUCT_EM05CN 0x0312 ++#define QUECTEL_PRODUCT_EM05G_GR 0x0313 ++#define QUECTEL_PRODUCT_EM05G_RS 0x0314 + #define QUECTEL_PRODUCT_EM12 0x0512 + #define QUECTEL_PRODUCT_RM500Q 0x0800 + #define QUECTEL_PRODUCT_RM520N 0x0801 ++#define QUECTEL_PRODUCT_EC200U 0x0901 + #define QUECTEL_PRODUCT_EC200S_CN 0x6002 + #define QUECTEL_PRODUCT_EC200T 0x6026 + #define QUECTEL_PRODUCT_RM500K 0x7001 +@@ -1159,8 +1165,18 @@ static const struct usb_device_id option_ids[] = { + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff), + .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) }, ++ { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05CN, 0xff), ++ .driver_info = RSVD(6) | ZLP }, ++ { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05CN_SG, 0xff), ++ .driver_info = RSVD(6) | ZLP }, + { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G, 0xff), + .driver_info = RSVD(6) | ZLP }, ++ { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_GR, 0xff), ++ .driver_info = RSVD(6) | ZLP }, ++ { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_CS, 0xff), ++ .driver_info = RSVD(6) | ZLP }, ++ { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_RS, 0xff), ++ .driver_info = RSVD(6) | ZLP }, + { USB_DEVICE_INTERFACE_CLASS(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM05G_SG, 0xff), + .driver_info = RSVD(6) | ZLP }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K, 0xff, 0x00, 0x40) }, +@@ -1180,6 +1196,7 @@ static const struct usb_device_id option_ids[] = { + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM520N, 0xff, 0xff, 0x30) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM520N, 0xff, 0, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM520N, 0xff, 0, 0) }, ++ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200U, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) }, +diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h +index 3734a25e09e53..44f0b78be8a96 100644 +--- a/drivers/usb/storage/uas-detect.h ++++ b/drivers/usb/storage/uas-detect.h +@@ -116,6 +116,19 @@ static int uas_use_uas_driver(struct usb_interface *intf, + if (le16_to_cpu(udev->descriptor.idVendor) == 0x0bc2) + flags |= US_FL_NO_ATA_1X; + ++ /* ++ * RTL9210-based enclosure from HIKSEMI, MD202 reportedly have issues ++ * with UAS. This isn't distinguishable with just idVendor and ++ * idProduct, use manufacturer and product too. ++ * ++ * Reported-by: Hongling Zeng <zenghongling@kylinos.cn> ++ */ ++ if (le16_to_cpu(udev->descriptor.idVendor) == 0x0bda && ++ le16_to_cpu(udev->descriptor.idProduct) == 0x9210 && ++ (udev->manufacturer && !strcmp(udev->manufacturer, "HIKSEMI")) && ++ (udev->product && !strcmp(udev->product, "MD202"))) ++ flags |= US_FL_IGNORE_UAS; ++ + usb_stor_adjust_quirks(udev, &flags); + + if (flags & US_FL_IGNORE_UAS) { +diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h +index 92e9bd006622d..d4fa29b623ff9 100644 +--- a/drivers/usb/storage/unusual_uas.h ++++ b/drivers/usb/storage/unusual_uas.h +@@ -83,13 +83,6 @@ UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999, + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_REPORT_LUNS), + +-/* Reported-by: Hongling Zeng <zenghongling@kylinos.cn> */ +-UNUSUAL_DEV(0x0bda, 0x9210, 0x0000, 0x9999, +- "Hiksemi", +- "External HDD", +- USB_SC_DEVICE, USB_PR_DEVICE, NULL, +- US_FL_IGNORE_UAS), +- + /* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */ + UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999, + "Initio Corporation", +diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c +index 52cdc06e1deac..2ae3fab36a80e 100644 +--- a/drivers/usb/typec/altmodes/displayport.c ++++ b/drivers/usb/typec/altmodes/displayport.c +@@ -411,6 +411,18 @@ static const char * const pin_assignments[] = { + [DP_PIN_ASSIGN_F] = "F", + }; + ++/* ++ * Helper function to extract a peripheral's currently supported ++ * Pin Assignments from its DisplayPort alternate mode state. ++ */ ++static u8 get_current_pin_assignments(struct dp_altmode *dp) ++{ ++ if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D) ++ return DP_CAP_PIN_ASSIGN_DFP_D(dp->alt->vdo); ++ else ++ return DP_CAP_PIN_ASSIGN_UFP_D(dp->alt->vdo); ++} ++ + static ssize_t + pin_assignment_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +@@ -437,10 +449,7 @@ pin_assignment_store(struct device *dev, struct device_attribute *attr, + goto out_unlock; + } + +- if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D) +- assignments = DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo); +- else +- assignments = DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo); ++ assignments = get_current_pin_assignments(dp); + + if (!(DP_CONF_GET_PIN_ASSIGN(conf) & assignments)) { + ret = -EINVAL; +@@ -477,10 +486,7 @@ static ssize_t pin_assignment_show(struct device *dev, + + cur = get_count_order(DP_CONF_GET_PIN_ASSIGN(dp->data.conf)); + +- if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D) +- assignments = DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo); +- else +- assignments = DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo); ++ assignments = get_current_pin_assignments(dp); + + for (i = 0; assignments; assignments >>= 1, i++) { + if (assignments & 1) { +diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c +index 3485b9bf970f5..50c6405befc4b 100644 +--- a/fs/cifs/smb2pdu.c ++++ b/fs/cifs/smb2pdu.c +@@ -3152,12 +3152,15 @@ smb2_readv_callback(struct mid_q_entry *mid) + (struct smb2_sync_hdr *)rdata->iov[0].iov_base; + unsigned int credits_received = 0; + struct smb_rqst rqst = { .rq_iov = &rdata->iov[1], +- .rq_nvec = 1, +- .rq_pages = rdata->pages, +- .rq_offset = rdata->page_offset, +- .rq_npages = rdata->nr_pages, +- .rq_pagesz = rdata->pagesz, +- .rq_tailsz = rdata->tailsz }; ++ .rq_nvec = 1, }; ++ ++ if (rdata->got_bytes) { ++ rqst.rq_pages = rdata->pages; ++ rqst.rq_offset = rdata->page_offset; ++ rqst.rq_npages = rdata->nr_pages; ++ rqst.rq_pagesz = rdata->pagesz; ++ rqst.rq_tailsz = rdata->tailsz; ++ } + + cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%u\n", + __func__, mid->mid, mid->mid_state, rdata->result, +diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h +index d8068c0e547dc..e58b162ad5d6b 100644 +--- a/fs/ext4/ext4.h ++++ b/fs/ext4/ext4.h +@@ -1041,9 +1041,6 @@ struct ext4_inode_info { + ext4_lblk_t i_da_metadata_calc_last_lblock; + int i_da_metadata_calc_len; + +- /* pending cluster reservations for bigalloc file systems */ +- struct ext4_pending_tree i_pending_tree; +- + /* on-disk additional length */ + __u16 i_extra_isize; + +@@ -3231,6 +3228,10 @@ extern struct ext4_ext_path *ext4_find_extent(struct inode *, ext4_lblk_t, + int flags); + extern void ext4_ext_drop_refs(struct ext4_ext_path *); + extern int ext4_ext_check_inode(struct inode *inode); ++extern int ext4_find_delalloc_range(struct inode *inode, ++ ext4_lblk_t lblk_start, ++ ext4_lblk_t lblk_end); ++extern int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk); + extern ext4_lblk_t ext4_ext_next_allocated_block(struct ext4_ext_path *path); + extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len); +@@ -3241,7 +3242,6 @@ extern int ext4_swap_extents(handle_t *handle, struct inode *inode1, + struct inode *inode2, ext4_lblk_t lblk1, + ext4_lblk_t lblk2, ext4_lblk_t count, + int mark_unwritten,int *err); +-extern int ext4_clu_mapped(struct inode *inode, ext4_lblk_t lclu); + + /* move_extent.c */ + extern void ext4_double_down_write_data_sem(struct inode *first, +diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c +index 1ad4c8eb82c19..6c492fca60c41 100644 +--- a/fs/ext4/extents.c ++++ b/fs/ext4/extents.c +@@ -2381,8 +2381,8 @@ ext4_ext_put_gap_in_cache(struct inode *inode, ext4_lblk_t hole_start, + { + struct extent_status es; + +- ext4_es_find_extent_range(inode, &ext4_es_is_delayed, hole_start, +- hole_start + hole_len - 1, &es); ++ ext4_es_find_delayed_extent_range(inode, hole_start, ++ hole_start + hole_len - 1, &es); + if (es.es_len) { + /* There's delayed extent containing lblock? */ + if (es.es_lblk <= hole_start) +@@ -3852,6 +3852,39 @@ out: + return ext4_mark_inode_dirty(handle, inode); + } + ++/** ++ * ext4_find_delalloc_range: find delayed allocated block in the given range. ++ * ++ * Return 1 if there is a delalloc block in the range, otherwise 0. ++ */ ++int ext4_find_delalloc_range(struct inode *inode, ++ ext4_lblk_t lblk_start, ++ ext4_lblk_t lblk_end) ++{ ++ struct extent_status es; ++ ++ ext4_es_find_delayed_extent_range(inode, lblk_start, lblk_end, &es); ++ if (es.es_len == 0) ++ return 0; /* there is no delay extent in this tree */ ++ else if (es.es_lblk <= lblk_start && ++ lblk_start < es.es_lblk + es.es_len) ++ return 1; ++ else if (lblk_start <= es.es_lblk && es.es_lblk <= lblk_end) ++ return 1; ++ else ++ return 0; ++} ++ ++int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk) ++{ ++ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); ++ ext4_lblk_t lblk_start, lblk_end; ++ lblk_start = EXT4_LBLK_CMASK(sbi, lblk); ++ lblk_end = lblk_start + sbi->s_cluster_ratio - 1; ++ ++ return ext4_find_delalloc_range(inode, lblk_start, lblk_end); ++} ++ + /** + * Determines how many complete clusters (out of those specified by the 'map') + * are under delalloc and were reserved quota for. +@@ -3910,8 +3943,7 @@ get_reserved_cluster_alloc(struct inode *inode, ext4_lblk_t lblk_start, + lblk_from = EXT4_LBLK_CMASK(sbi, lblk_start); + lblk_to = lblk_from + c_offset - 1; + +- if (ext4_es_scan_range(inode, &ext4_es_is_delayed, lblk_from, +- lblk_to)) ++ if (ext4_find_delalloc_range(inode, lblk_from, lblk_to)) + allocated_clusters--; + } + +@@ -3921,8 +3953,7 @@ get_reserved_cluster_alloc(struct inode *inode, ext4_lblk_t lblk_start, + lblk_from = lblk_start + num_blks; + lblk_to = lblk_from + (sbi->s_cluster_ratio - c_offset) - 1; + +- if (ext4_es_scan_range(inode, &ext4_es_is_delayed, lblk_from, +- lblk_to)) ++ if (ext4_find_delalloc_range(inode, lblk_from, lblk_to)) + allocated_clusters--; + } + +@@ -5077,10 +5108,8 @@ static int ext4_find_delayed_extent(struct inode *inode, + ext4_lblk_t block, next_del; + + if (newes->es_pblk == 0) { +- ext4_es_find_extent_range(inode, &ext4_es_is_delayed, +- newes->es_lblk, +- newes->es_lblk + newes->es_len - 1, +- &es); ++ ext4_es_find_delayed_extent_range(inode, newes->es_lblk, ++ newes->es_lblk + newes->es_len - 1, &es); + + /* + * No extent in extent-tree contains block @newes->es_pblk, +@@ -5101,8 +5130,7 @@ static int ext4_find_delayed_extent(struct inode *inode, + } + + block = newes->es_lblk + newes->es_len; +- ext4_es_find_extent_range(inode, &ext4_es_is_delayed, block, +- EXT_MAX_BLOCKS, &es); ++ ext4_es_find_delayed_extent_range(inode, block, EXT_MAX_BLOCKS, &es); + if (es.es_len == 0) + next_del = EXT_MAX_BLOCKS; + else +@@ -5963,90 +5991,3 @@ ext4_swap_extents(handle_t *handle, struct inode *inode1, + } + return replaced_count; + } +- +-/* +- * ext4_clu_mapped - determine whether any block in a logical cluster has +- * been mapped to a physical cluster +- * +- * @inode - file containing the logical cluster +- * @lclu - logical cluster of interest +- * +- * Returns 1 if any block in the logical cluster is mapped, signifying +- * that a physical cluster has been allocated for it. Otherwise, +- * returns 0. Can also return negative error codes. Derived from +- * ext4_ext_map_blocks(). +- */ +-int ext4_clu_mapped(struct inode *inode, ext4_lblk_t lclu) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- struct ext4_ext_path *path; +- int depth, mapped = 0, err = 0; +- struct ext4_extent *extent; +- ext4_lblk_t first_lblk, first_lclu, last_lclu; +- +- /* +- * if data can be stored inline, the logical cluster isn't +- * mapped - no physical clusters have been allocated, and the +- * file has no extents +- */ +- if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) +- return 0; +- +- /* search for the extent closest to the first block in the cluster */ +- path = ext4_find_extent(inode, EXT4_C2B(sbi, lclu), NULL, 0); +- if (IS_ERR(path)) { +- err = PTR_ERR(path); +- path = NULL; +- goto out; +- } +- +- depth = ext_depth(inode); +- +- /* +- * A consistent leaf must not be empty. This situation is possible, +- * though, _during_ tree modification, and it's why an assert can't +- * be put in ext4_find_extent(). +- */ +- if (unlikely(path[depth].p_ext == NULL && depth != 0)) { +- EXT4_ERROR_INODE(inode, +- "bad extent address - lblock: %lu, depth: %d, pblock: %lld", +- (unsigned long) EXT4_C2B(sbi, lclu), +- depth, path[depth].p_block); +- err = -EFSCORRUPTED; +- goto out; +- } +- +- extent = path[depth].p_ext; +- +- /* can't be mapped if the extent tree is empty */ +- if (extent == NULL) +- goto out; +- +- first_lblk = le32_to_cpu(extent->ee_block); +- first_lclu = EXT4_B2C(sbi, first_lblk); +- +- /* +- * Three possible outcomes at this point - found extent spanning +- * the target cluster, to the left of the target cluster, or to the +- * right of the target cluster. The first two cases are handled here. +- * The last case indicates the target cluster is not mapped. +- */ +- if (lclu >= first_lclu) { +- last_lclu = EXT4_B2C(sbi, first_lblk + +- ext4_ext_get_actual_len(extent) - 1); +- if (lclu <= last_lclu) { +- mapped = 1; +- } else { +- first_lblk = ext4_ext_next_allocated_block(path); +- first_lclu = EXT4_B2C(sbi, first_lblk); +- if (lclu == first_lclu) +- mapped = 1; +- } +- } +- +-out: +- ext4_ext_drop_refs(path); +- kfree(path); +- +- return err ? err : mapped; +-} +diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c +index 441ee2e747d3e..027c3e1b9f61a 100644 +--- a/fs/ext4/extents_status.c ++++ b/fs/ext4/extents_status.c +@@ -142,7 +142,6 @@ + */ + + static struct kmem_cache *ext4_es_cachep; +-static struct kmem_cache *ext4_pending_cachep; + + static int __es_insert_extent(struct inode *inode, struct extent_status *newes); + static int __es_remove_extent(struct inode *inode, ext4_lblk_t lblk, +@@ -234,38 +233,30 @@ static struct extent_status *__es_tree_search(struct rb_root *root, + } + + /* +- * ext4_es_find_extent_range - find extent with specified status within block +- * range or next extent following block range in +- * extents status tree ++ * ext4_es_find_delayed_extent_range: find the 1st delayed extent covering ++ * @es->lblk if it exists, otherwise, the next extent after @es->lblk. + * +- * @inode - file containing the range +- * @matching_fn - pointer to function that matches extents with desired status +- * @lblk - logical block defining start of range +- * @end - logical block defining end of range +- * @es - extent found, if any +- * +- * Find the first extent within the block range specified by @lblk and @end +- * in the extents status tree that satisfies @matching_fn. If a match +- * is found, it's returned in @es. If not, and a matching extent is found +- * beyond the block range, it's returned in @es. If no match is found, an +- * extent is returned in @es whose es_lblk, es_len, and es_pblk components +- * are 0. ++ * @inode: the inode which owns delayed extents ++ * @lblk: the offset where we start to search ++ * @end: the offset where we stop to search ++ * @es: delayed extent that we found + */ +-static void __es_find_extent_range(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk, ext4_lblk_t end, +- struct extent_status *es) ++void ext4_es_find_delayed_extent_range(struct inode *inode, ++ ext4_lblk_t lblk, ext4_lblk_t end, ++ struct extent_status *es) + { + struct ext4_es_tree *tree = NULL; + struct extent_status *es1 = NULL; + struct rb_node *node; + +- WARN_ON(es == NULL); +- WARN_ON(end < lblk); ++ BUG_ON(es == NULL); ++ BUG_ON(end < lblk); ++ trace_ext4_es_find_delayed_extent_range_enter(inode, lblk); + ++ read_lock(&EXT4_I(inode)->i_es_lock); + tree = &EXT4_I(inode)->i_es_tree; + +- /* see if the extent has been cached */ ++ /* find extent in cache firstly */ + es->es_lblk = es->es_len = es->es_pblk = 0; + if (tree->cache_es) { + es1 = tree->cache_es; +@@ -280,133 +271,28 @@ static void __es_find_extent_range(struct inode *inode, + es1 = __es_tree_search(&tree->root, lblk); + + out: +- if (es1 && !matching_fn(es1)) { ++ if (es1 && !ext4_es_is_delayed(es1)) { + while ((node = rb_next(&es1->rb_node)) != NULL) { + es1 = rb_entry(node, struct extent_status, rb_node); + if (es1->es_lblk > end) { + es1 = NULL; + break; + } +- if (matching_fn(es1)) ++ if (ext4_es_is_delayed(es1)) + break; + } + } + +- if (es1 && matching_fn(es1)) { ++ if (es1 && ext4_es_is_delayed(es1)) { + tree->cache_es = es1; + es->es_lblk = es1->es_lblk; + es->es_len = es1->es_len; + es->es_pblk = es1->es_pblk; + } + +-} +- +-/* +- * Locking for __es_find_extent_range() for external use +- */ +-void ext4_es_find_extent_range(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk, ext4_lblk_t end, +- struct extent_status *es) +-{ +- trace_ext4_es_find_extent_range_enter(inode, lblk); +- +- read_lock(&EXT4_I(inode)->i_es_lock); +- __es_find_extent_range(inode, matching_fn, lblk, end, es); +- read_unlock(&EXT4_I(inode)->i_es_lock); +- +- trace_ext4_es_find_extent_range_exit(inode, es); +-} +- +-/* +- * __es_scan_range - search block range for block with specified status +- * in extents status tree +- * +- * @inode - file containing the range +- * @matching_fn - pointer to function that matches extents with desired status +- * @lblk - logical block defining start of range +- * @end - logical block defining end of range +- * +- * Returns true if at least one block in the specified block range satisfies +- * the criterion specified by @matching_fn, and false if not. If at least +- * one extent has the specified status, then there is at least one block +- * in the cluster with that status. Should only be called by code that has +- * taken i_es_lock. +- */ +-static bool __es_scan_range(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t start, ext4_lblk_t end) +-{ +- struct extent_status es; +- +- __es_find_extent_range(inode, matching_fn, start, end, &es); +- if (es.es_len == 0) +- return false; /* no matching extent in the tree */ +- else if (es.es_lblk <= start && +- start < es.es_lblk + es.es_len) +- return true; +- else if (start <= es.es_lblk && es.es_lblk <= end) +- return true; +- else +- return false; +-} +-/* +- * Locking for __es_scan_range() for external use +- */ +-bool ext4_es_scan_range(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk, ext4_lblk_t end) +-{ +- bool ret; +- +- read_lock(&EXT4_I(inode)->i_es_lock); +- ret = __es_scan_range(inode, matching_fn, lblk, end); +- read_unlock(&EXT4_I(inode)->i_es_lock); +- +- return ret; +-} +- +-/* +- * __es_scan_clu - search cluster for block with specified status in +- * extents status tree +- * +- * @inode - file containing the cluster +- * @matching_fn - pointer to function that matches extents with desired status +- * @lblk - logical block in cluster to be searched +- * +- * Returns true if at least one extent in the cluster containing @lblk +- * satisfies the criterion specified by @matching_fn, and false if not. If at +- * least one extent has the specified status, then there is at least one block +- * in the cluster with that status. Should only be called by code that has +- * taken i_es_lock. +- */ +-static bool __es_scan_clu(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- ext4_lblk_t lblk_start, lblk_end; +- +- lblk_start = EXT4_LBLK_CMASK(sbi, lblk); +- lblk_end = lblk_start + sbi->s_cluster_ratio - 1; +- +- return __es_scan_range(inode, matching_fn, lblk_start, lblk_end); +-} +- +-/* +- * Locking for __es_scan_clu() for external use +- */ +-bool ext4_es_scan_clu(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk) +-{ +- bool ret; +- +- read_lock(&EXT4_I(inode)->i_es_lock); +- ret = __es_scan_clu(inode, matching_fn, lblk); + read_unlock(&EXT4_I(inode)->i_es_lock); + +- return ret; ++ trace_ext4_es_find_delayed_extent_range_exit(inode, es); + } + + static void ext4_es_list_add(struct inode *inode) +@@ -1364,242 +1250,3 @@ static int es_reclaim_extents(struct ext4_inode_info *ei, int *nr_to_scan) + ei->i_es_tree.cache_es = NULL; + return nr_shrunk; + } +- +-#ifdef ES_DEBUG__ +-static void ext4_print_pending_tree(struct inode *inode) +-{ +- struct ext4_pending_tree *tree; +- struct rb_node *node; +- struct pending_reservation *pr; +- +- printk(KERN_DEBUG "pending reservations for inode %lu:", inode->i_ino); +- tree = &EXT4_I(inode)->i_pending_tree; +- node = rb_first(&tree->root); +- while (node) { +- pr = rb_entry(node, struct pending_reservation, rb_node); +- printk(KERN_DEBUG " %u", pr->lclu); +- node = rb_next(node); +- } +- printk(KERN_DEBUG "\n"); +-} +-#else +-#define ext4_print_pending_tree(inode) +-#endif +- +-int __init ext4_init_pending(void) +-{ +- ext4_pending_cachep = kmem_cache_create("ext4_pending_reservation", +- sizeof(struct pending_reservation), +- 0, (SLAB_RECLAIM_ACCOUNT), NULL); +- if (ext4_pending_cachep == NULL) +- return -ENOMEM; +- return 0; +-} +- +-void ext4_exit_pending(void) +-{ +- kmem_cache_destroy(ext4_pending_cachep); +-} +- +-void ext4_init_pending_tree(struct ext4_pending_tree *tree) +-{ +- tree->root = RB_ROOT; +-} +- +-/* +- * __get_pending - retrieve a pointer to a pending reservation +- * +- * @inode - file containing the pending cluster reservation +- * @lclu - logical cluster of interest +- * +- * Returns a pointer to a pending reservation if it's a member of +- * the set, and NULL if not. Must be called holding i_es_lock. +- */ +-static struct pending_reservation *__get_pending(struct inode *inode, +- ext4_lblk_t lclu) +-{ +- struct ext4_pending_tree *tree; +- struct rb_node *node; +- struct pending_reservation *pr = NULL; +- +- tree = &EXT4_I(inode)->i_pending_tree; +- node = (&tree->root)->rb_node; +- +- while (node) { +- pr = rb_entry(node, struct pending_reservation, rb_node); +- if (lclu < pr->lclu) +- node = node->rb_left; +- else if (lclu > pr->lclu) +- node = node->rb_right; +- else if (lclu == pr->lclu) +- return pr; +- } +- return NULL; +-} +- +-/* +- * __insert_pending - adds a pending cluster reservation to the set of +- * pending reservations +- * +- * @inode - file containing the cluster +- * @lblk - logical block in the cluster to be added +- * +- * Returns 0 on successful insertion and -ENOMEM on failure. If the +- * pending reservation is already in the set, returns successfully. +- */ +-static int __insert_pending(struct inode *inode, ext4_lblk_t lblk) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- struct ext4_pending_tree *tree = &EXT4_I(inode)->i_pending_tree; +- struct rb_node **p = &tree->root.rb_node; +- struct rb_node *parent = NULL; +- struct pending_reservation *pr; +- ext4_lblk_t lclu; +- int ret = 0; +- +- lclu = EXT4_B2C(sbi, lblk); +- /* search to find parent for insertion */ +- while (*p) { +- parent = *p; +- pr = rb_entry(parent, struct pending_reservation, rb_node); +- +- if (lclu < pr->lclu) { +- p = &(*p)->rb_left; +- } else if (lclu > pr->lclu) { +- p = &(*p)->rb_right; +- } else { +- /* pending reservation already inserted */ +- goto out; +- } +- } +- +- pr = kmem_cache_alloc(ext4_pending_cachep, GFP_ATOMIC); +- if (pr == NULL) { +- ret = -ENOMEM; +- goto out; +- } +- pr->lclu = lclu; +- +- rb_link_node(&pr->rb_node, parent, p); +- rb_insert_color(&pr->rb_node, &tree->root); +- +-out: +- return ret; +-} +- +-/* +- * __remove_pending - removes a pending cluster reservation from the set +- * of pending reservations +- * +- * @inode - file containing the cluster +- * @lblk - logical block in the pending cluster reservation to be removed +- * +- * Returns successfully if pending reservation is not a member of the set. +- */ +-static void __remove_pending(struct inode *inode, ext4_lblk_t lblk) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- struct pending_reservation *pr; +- struct ext4_pending_tree *tree; +- +- pr = __get_pending(inode, EXT4_B2C(sbi, lblk)); +- if (pr != NULL) { +- tree = &EXT4_I(inode)->i_pending_tree; +- rb_erase(&pr->rb_node, &tree->root); +- kmem_cache_free(ext4_pending_cachep, pr); +- } +-} +- +-/* +- * ext4_remove_pending - removes a pending cluster reservation from the set +- * of pending reservations +- * +- * @inode - file containing the cluster +- * @lblk - logical block in the pending cluster reservation to be removed +- * +- * Locking for external use of __remove_pending. +- */ +-void ext4_remove_pending(struct inode *inode, ext4_lblk_t lblk) +-{ +- struct ext4_inode_info *ei = EXT4_I(inode); +- +- write_lock(&ei->i_es_lock); +- __remove_pending(inode, lblk); +- write_unlock(&ei->i_es_lock); +-} +- +-/* +- * ext4_is_pending - determine whether a cluster has a pending reservation +- * on it +- * +- * @inode - file containing the cluster +- * @lblk - logical block in the cluster +- * +- * Returns true if there's a pending reservation for the cluster in the +- * set of pending reservations, and false if not. +- */ +-bool ext4_is_pending(struct inode *inode, ext4_lblk_t lblk) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- struct ext4_inode_info *ei = EXT4_I(inode); +- bool ret; +- +- read_lock(&ei->i_es_lock); +- ret = (bool)(__get_pending(inode, EXT4_B2C(sbi, lblk)) != NULL); +- read_unlock(&ei->i_es_lock); +- +- return ret; +-} +- +-/* +- * ext4_es_insert_delayed_block - adds a delayed block to the extents status +- * tree, adding a pending reservation where +- * needed +- * +- * @inode - file containing the newly added block +- * @lblk - logical block to be added +- * @allocated - indicates whether a physical cluster has been allocated for +- * the logical cluster that contains the block +- * +- * Returns 0 on success, negative error code on failure. +- */ +-int ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk, +- bool allocated) +-{ +- struct extent_status newes; +- int err = 0; +- +- es_debug("add [%u/1) delayed to extent status tree of inode %lu\n", +- lblk, inode->i_ino); +- +- newes.es_lblk = lblk; +- newes.es_len = 1; +- ext4_es_store_pblock_status(&newes, ~0, EXTENT_STATUS_DELAYED); +- trace_ext4_es_insert_delayed_block(inode, &newes, allocated); +- +- ext4_es_insert_extent_check(inode, &newes); +- +- write_lock(&EXT4_I(inode)->i_es_lock); +- +- err = __es_remove_extent(inode, lblk, lblk); +- if (err != 0) +- goto error; +-retry: +- err = __es_insert_extent(inode, &newes); +- if (err == -ENOMEM && __es_shrink(EXT4_SB(inode->i_sb), +- 128, EXT4_I(inode))) +- goto retry; +- if (err != 0) +- goto error; +- +- if (allocated) +- __insert_pending(inode, lblk); +- +-error: +- write_unlock(&EXT4_I(inode)->i_es_lock); +- +- ext4_es_print_tree(inode); +- ext4_print_pending_tree(inode); +- +- return err; +-} +diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h +index 9d3c676ec623a..8efdeb903d6ba 100644 +--- a/fs/ext4/extents_status.h ++++ b/fs/ext4/extents_status.h +@@ -78,51 +78,6 @@ struct ext4_es_stats { + struct percpu_counter es_stats_shk_cnt; + }; + +-/* +- * Pending cluster reservations for bigalloc file systems +- * +- * A cluster with a pending reservation is a logical cluster shared by at +- * least one extent in the extents status tree with delayed and unwritten +- * status and at least one other written or unwritten extent. The +- * reservation is said to be pending because a cluster reservation would +- * have to be taken in the event all blocks in the cluster shared with +- * written or unwritten extents were deleted while the delayed and +- * unwritten blocks remained. +- * +- * The set of pending cluster reservations is an auxiliary data structure +- * used with the extents status tree to implement reserved cluster/block +- * accounting for bigalloc file systems. The set is kept in memory and +- * records all pending cluster reservations. +- * +- * Its primary function is to avoid the need to read extents from the +- * disk when invalidating pages as a result of a truncate, punch hole, or +- * collapse range operation. Page invalidation requires a decrease in the +- * reserved cluster count if it results in the removal of all delayed +- * and unwritten extents (blocks) from a cluster that is not shared with a +- * written or unwritten extent, and no decrease otherwise. Determining +- * whether the cluster is shared can be done by searching for a pending +- * reservation on it. +- * +- * Secondarily, it provides a potentially faster method for determining +- * whether the reserved cluster count should be increased when a physical +- * cluster is deallocated as a result of a truncate, punch hole, or +- * collapse range operation. The necessary information is also present +- * in the extents status tree, but might be more rapidly accessed in +- * the pending reservation set in many cases due to smaller size. +- * +- * The pending cluster reservation set is implemented as a red-black tree +- * with the goal of minimizing per page search time overhead. +- */ +- +-struct pending_reservation { +- struct rb_node rb_node; +- ext4_lblk_t lclu; +-}; +- +-struct ext4_pending_tree { +- struct rb_root root; +-}; +- + extern int __init ext4_init_es(void); + extern void ext4_exit_es(void); + extern void ext4_es_init_tree(struct ext4_es_tree *tree); +@@ -135,18 +90,11 @@ extern void ext4_es_cache_extent(struct inode *inode, ext4_lblk_t lblk, + unsigned int status); + extern int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk, + ext4_lblk_t len); +-extern void ext4_es_find_extent_range(struct inode *inode, +- int (*match_fn)(struct extent_status *es), +- ext4_lblk_t lblk, ext4_lblk_t end, +- struct extent_status *es); ++extern void ext4_es_find_delayed_extent_range(struct inode *inode, ++ ext4_lblk_t lblk, ext4_lblk_t end, ++ struct extent_status *es); + extern int ext4_es_lookup_extent(struct inode *inode, ext4_lblk_t lblk, + struct extent_status *es); +-extern bool ext4_es_scan_range(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk, ext4_lblk_t end); +-extern bool ext4_es_scan_clu(struct inode *inode, +- int (*matching_fn)(struct extent_status *es), +- ext4_lblk_t lblk); + + static inline unsigned int ext4_es_status(struct extent_status *es) + { +@@ -178,16 +126,6 @@ static inline int ext4_es_is_hole(struct extent_status *es) + return (ext4_es_type(es) & EXTENT_STATUS_HOLE) != 0; + } + +-static inline int ext4_es_is_mapped(struct extent_status *es) +-{ +- return (ext4_es_is_written(es) || ext4_es_is_unwritten(es)); +-} +- +-static inline int ext4_es_is_delonly(struct extent_status *es) +-{ +- return (ext4_es_is_delayed(es) && !ext4_es_is_unwritten(es)); +-} +- + static inline void ext4_es_set_referenced(struct extent_status *es) + { + es->es_pblk |= ((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT; +@@ -237,12 +175,4 @@ extern void ext4_es_unregister_shrinker(struct ext4_sb_info *sbi); + + extern int ext4_seq_es_shrinker_info_show(struct seq_file *seq, void *v); + +-extern int __init ext4_init_pending(void); +-extern void ext4_exit_pending(void); +-extern void ext4_init_pending_tree(struct ext4_pending_tree *tree); +-extern void ext4_remove_pending(struct inode *inode, ext4_lblk_t lblk); +-extern bool ext4_is_pending(struct inode *inode, ext4_lblk_t lblk); +-extern int ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk, +- bool allocated); +- + #endif /* _EXT4_EXTENTS_STATUS_H */ +diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c +index 17d120ac20100..3c7bbdaa425a7 100644 +--- a/fs/ext4/inode.c ++++ b/fs/ext4/inode.c +@@ -600,8 +600,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode, + EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN; + if (!(flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) && + !(status & EXTENT_STATUS_WRITTEN) && +- ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk, +- map->m_lblk + map->m_len - 1)) ++ ext4_find_delalloc_range(inode, map->m_lblk, ++ map->m_lblk + map->m_len - 1)) + status |= EXTENT_STATUS_DELAYED; + ret = ext4_es_insert_extent(inode, map->m_lblk, + map->m_len, map->m_pblk, status); +@@ -724,8 +724,8 @@ found: + EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN; + if (!(flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) && + !(status & EXTENT_STATUS_WRITTEN) && +- ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk, +- map->m_lblk + map->m_len - 1)) ++ ext4_find_delalloc_range(inode, map->m_lblk, ++ map->m_lblk + map->m_len - 1)) + status |= EXTENT_STATUS_DELAYED; + ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len, + map->m_pblk, status); +@@ -1717,7 +1717,7 @@ static void ext4_da_page_release_reservation(struct page *page, + lblk = (page->index << (PAGE_SHIFT - inode->i_blkbits)) + + ((num_clusters - 1) << sbi->s_cluster_bits); + if (sbi->s_cluster_ratio == 1 || +- !ext4_es_scan_clu(inode, &ext4_es_is_delayed, lblk)) ++ !ext4_find_delalloc_cluster(inode, lblk)) + ext4_da_release_space(inode, 1); + + num_clusters--; +@@ -1823,65 +1823,6 @@ static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh) + return (buffer_delay(bh) || buffer_unwritten(bh)) && buffer_dirty(bh); + } + +-/* +- * ext4_insert_delayed_block - adds a delayed block to the extents status +- * tree, incrementing the reserved cluster/block +- * count or making a pending reservation +- * where needed +- * +- * @inode - file containing the newly added block +- * @lblk - logical block to be added +- * +- * Returns 0 on success, negative error code on failure. +- */ +-static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk) +-{ +- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); +- int ret; +- bool allocated = false; +- +- /* +- * If the cluster containing lblk is shared with a delayed, +- * written, or unwritten extent in a bigalloc file system, it's +- * already been accounted for and does not need to be reserved. +- * A pending reservation must be made for the cluster if it's +- * shared with a written or unwritten extent and doesn't already +- * have one. Written and unwritten extents can be purged from the +- * extents status tree if the system is under memory pressure, so +- * it's necessary to examine the extent tree if a search of the +- * extents status tree doesn't get a match. +- */ +- if (sbi->s_cluster_ratio == 1) { +- ret = ext4_da_reserve_space(inode); +- if (ret != 0) /* ENOSPC */ +- goto errout; +- } else { /* bigalloc */ +- if (!ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) { +- if (!ext4_es_scan_clu(inode, +- &ext4_es_is_mapped, lblk)) { +- ret = ext4_clu_mapped(inode, +- EXT4_B2C(sbi, lblk)); +- if (ret < 0) +- goto errout; +- if (ret == 0) { +- ret = ext4_da_reserve_space(inode); +- if (ret != 0) /* ENOSPC */ +- goto errout; +- } else { +- allocated = true; +- } +- } else { +- allocated = true; +- } +- } +- } +- +- ret = ext4_es_insert_delayed_block(inode, lblk, allocated); +- +-errout: +- return ret; +-} +- + /* + * This function is grabs code from the very beginning of + * ext4_map_blocks, but assumes that the caller is from delayed write +@@ -1961,14 +1902,28 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock, + add_delayed: + if (retval == 0) { + int ret; +- + /* + * XXX: __block_prepare_write() unmaps passed block, + * is it OK? + */ ++ /* ++ * If the block was allocated from previously allocated cluster, ++ * then we don't need to reserve it again. However we still need ++ * to reserve metadata for every block we're going to write. ++ */ ++ if (EXT4_SB(inode->i_sb)->s_cluster_ratio == 1 || ++ !ext4_find_delalloc_cluster(inode, map->m_lblk)) { ++ ret = ext4_da_reserve_space(inode); ++ if (ret) { ++ /* not enough space to reserve */ ++ retval = ret; ++ goto out_unlock; ++ } ++ } + +- ret = ext4_insert_delayed_block(inode, map->m_lblk); +- if (ret != 0) { ++ ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len, ++ ~0, EXTENT_STATUS_DELAYED); ++ if (ret) { + retval = ret; + goto out_unlock; + } +@@ -3564,8 +3519,7 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length, + ext4_lblk_t end = map.m_lblk + map.m_len - 1; + struct extent_status es; + +- ext4_es_find_extent_range(inode, &ext4_es_is_delayed, +- map.m_lblk, end, &es); ++ ext4_es_find_delayed_extent_range(inode, map.m_lblk, end, &es); + + if (!es.es_len || es.es_lblk > end) { + /* entire range is a hole */ +diff --git a/fs/ext4/super.c b/fs/ext4/super.c +index 73a431b6e720f..e54a5be15636d 100644 +--- a/fs/ext4/super.c ++++ b/fs/ext4/super.c +@@ -1095,7 +1095,6 @@ static struct inode *ext4_alloc_inode(struct super_block *sb) + ei->i_da_metadata_calc_len = 0; + ei->i_da_metadata_calc_last_lblock = 0; + spin_lock_init(&(ei->i_block_reservation_lock)); +- ext4_init_pending_tree(&ei->i_pending_tree); + #ifdef CONFIG_QUOTA + ei->i_reserved_quota = 0; + memset(&ei->i_dquot, 0, sizeof(ei->i_dquot)); +@@ -6190,10 +6189,6 @@ static int __init ext4_init_fs(void) + if (err) + return err; + +- err = ext4_init_pending(); +- if (err) +- goto out6; +- + err = ext4_init_pageio(); + if (err) + goto out5; +@@ -6232,8 +6227,6 @@ out3: + out4: + ext4_exit_pageio(); + out5: +- ext4_exit_pending(); +-out6: + ext4_exit_es(); + + return err; +@@ -6251,7 +6244,6 @@ static void __exit ext4_exit_fs(void) + ext4_exit_system_zone(); + ext4_exit_pageio(); + ext4_exit_es(); +- ext4_exit_pending(); + } + + MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others"); +diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c +index 36d6b561b524f..e85ed4aa9d46f 100644 +--- a/fs/f2fs/extent_cache.c ++++ b/fs/f2fs/extent_cache.c +@@ -375,7 +375,8 @@ static bool f2fs_lookup_extent_tree(struct inode *inode, pgoff_t pgofs, + struct extent_node *en; + bool ret = false; + +- f2fs_bug_on(sbi, !et); ++ if (!et) ++ return false; + + trace_f2fs_lookup_extent_tree_start(inode, pgofs); + +diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c +index e8e825497cbdc..015d39ac2c8f4 100644 +--- a/fs/nfs/filelayout/filelayout.c ++++ b/fs/nfs/filelayout/filelayout.c +@@ -837,6 +837,12 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, + return &fl->generic_hdr; + } + ++static bool ++filelayout_lseg_is_striped(const struct nfs4_filelayout_segment *flseg) ++{ ++ return flseg->num_fh > 1; ++} ++ + /* + * filelayout_pg_test(). Called by nfs_can_coalesce_requests() + * +@@ -857,6 +863,8 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, + size = pnfs_generic_pg_test(pgio, prev, req); + if (!size) + return 0; ++ else if (!filelayout_lseg_is_striped(FILELAYOUT_LSEG(pgio->pg_lseg))) ++ return size; + + /* see if req and prev are in the same stripe */ + if (prev) { +diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c +index 919d1238ce45f..a0e37530dcf30 100644 +--- a/fs/nilfs2/btree.c ++++ b/fs/nilfs2/btree.c +@@ -480,9 +480,18 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr, + ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, 0, &bh, + &submit_ptr); + if (ret) { +- if (ret != -EEXIST) +- return ret; +- goto out_check; ++ if (likely(ret == -EEXIST)) ++ goto out_check; ++ if (ret == -ENOENT) { ++ /* ++ * Block address translation failed due to invalid ++ * value of 'ptr'. In this case, return internal code ++ * -EINVAL (broken bmap) to notify bmap layer of fatal ++ * metadata corruption. ++ */ ++ ret = -EINVAL; ++ } ++ return ret; + } + + if (ra) { +diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h +index 20c9b8e77a571..0dfb174f707e9 100644 +--- a/include/trace/events/ext4.h ++++ b/include/trace/events/ext4.h +@@ -2290,7 +2290,7 @@ TRACE_EVENT(ext4_es_remove_extent, + __entry->lblk, __entry->len) + ); + +-TRACE_EVENT(ext4_es_find_extent_range_enter, ++TRACE_EVENT(ext4_es_find_delayed_extent_range_enter, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk), + + TP_ARGS(inode, lblk), +@@ -2312,7 +2312,7 @@ TRACE_EVENT(ext4_es_find_extent_range_enter, + (unsigned long) __entry->ino, __entry->lblk) + ); + +-TRACE_EVENT(ext4_es_find_extent_range_exit, ++TRACE_EVENT(ext4_es_find_delayed_extent_range_exit, + TP_PROTO(struct inode *inode, struct extent_status *es), + + TP_ARGS(inode, es), +@@ -2532,41 +2532,6 @@ TRACE_EVENT(ext4_es_shrink, + __entry->scan_time, __entry->nr_skipped, __entry->retried) + ); + +-TRACE_EVENT(ext4_es_insert_delayed_block, +- TP_PROTO(struct inode *inode, struct extent_status *es, +- bool allocated), +- +- TP_ARGS(inode, es, allocated), +- +- TP_STRUCT__entry( +- __field( dev_t, dev ) +- __field( ino_t, ino ) +- __field( ext4_lblk_t, lblk ) +- __field( ext4_lblk_t, len ) +- __field( ext4_fsblk_t, pblk ) +- __field( char, status ) +- __field( bool, allocated ) +- ), +- +- TP_fast_assign( +- __entry->dev = inode->i_sb->s_dev; +- __entry->ino = inode->i_ino; +- __entry->lblk = es->es_lblk; +- __entry->len = es->es_len; +- __entry->pblk = ext4_es_pblock(es); +- __entry->status = ext4_es_status(es); +- __entry->allocated = allocated; +- ), +- +- TP_printk("dev %d,%d ino %lu es [%u/%u) mapped %llu status %s " +- "allocated %d", +- MAJOR(__entry->dev), MINOR(__entry->dev), +- (unsigned long) __entry->ino, +- __entry->lblk, __entry->len, +- __entry->pblk, show_extent_status(__entry->status), +- __entry->allocated) +-); +- + /* fsmap traces */ + DECLARE_EVENT_CLASS(ext4_fsmap_class, + TP_PROTO(struct super_block *sb, u32 keydev, u32 agno, u64 bno, u64 len, +diff --git a/kernel/sys.c b/kernel/sys.c +index d0663f8e6fb80..3548467f6459b 100644 +--- a/kernel/sys.c ++++ b/kernel/sys.c +@@ -1530,6 +1530,8 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource, + + if (resource >= RLIM_NLIMITS) + return -EINVAL; ++ resource = array_index_nospec(resource, RLIM_NLIMITS); ++ + if (new_rlim) { + if (new_rlim->rlim_cur > new_rlim->rlim_max) + return -EINVAL; +diff --git a/net/core/ethtool.c b/net/core/ethtool.c +index 4db9512feba83..d007f1cca64c7 100644 +--- a/net/core/ethtool.c ++++ b/net/core/ethtool.c +@@ -2023,7 +2023,8 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr) + return n_stats; + if (n_stats > S32_MAX / sizeof(u64)) + return -ENOMEM; +- WARN_ON_ONCE(!n_stats); ++ if (WARN_ON_ONCE(!n_stats)) ++ return -EOPNOTSUPP; + + if (copy_from_user(&stats, useraddr, sizeof(stats))) + return -EFAULT; |