dri-devel May 2019

dri-devel@lists.freedesktop.org

299 participants
2118 discussions

[PATCH v2] drm/virtio: Remove redundant return type
by Robert Foss 06 May '19

06 May '19

virtio_gpu_fence_emit() always returns 0, since it has no error paths. Consequently no calls for virtio_gpu_fence_emit() use the return value, and it can be removed. Signed-off-by: Robert Foss <robert.foss(a)collabora.com> Suggested-by: Emil Velikov <emil.velikov(a)collabora.com> Reviewed-by: Chia-I Wu <olvaffe(a)gmail.com> --- This patch was suggested in this email thread: [PATCH] drm/virtio: allocate fences with GFP_KERNEL https://www.spinics.net/lists/dri-devel/msg208536.html Changes since v1: - Rebased on drm-misc-next - Added r-b from Chia-I Wu drivers/gpu/drm/virtio/virtgpu_drv.h | 2 +- drivers/gpu/drm/virtio/virtgpu_fence.c | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 90461feeafdb..2d3e5b1debb3 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -355,7 +355,7 @@ int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma); bool virtio_fence_signaled(struct dma_fence *f); struct virtio_gpu_fence *virtio_gpu_fence_alloc( struct virtio_gpu_device *vgdev); -int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, +void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, struct virtio_gpu_ctrl_hdr *cmd_hdr, struct virtio_gpu_fence *fence); void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev, diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c index 8aecc36a0417..70d6c4329778 100644 --- a/drivers/gpu/drm/virtio/virtgpu_fence.c +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c @@ -85,7 +85,7 @@ struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev) return fence; } -int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, +void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, struct virtio_gpu_ctrl_hdr *cmd_hdr, struct virtio_gpu_fence *fence) { @@ -102,7 +102,6 @@ int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, cmd_hdr->flags |= cpu_to_le32(VIRTIO_GPU_FLAG_FENCE); cmd_hdr->fence_id = cpu_to_le64(fence->f.seqno); - return 0; } void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev, -- 2.20.1

2 1

[PATCH v3 00/26] compat_ioctl: cleanups
by Arnd Bergmann 06 May '19

06 May '19

Hi Al, It took me way longer than I had hoped to revisit this series, see https://lore.kernel.org/lkml/20180912150142.157913-1-arnd@arndb.de/ for the previously posted version. I've come to the point where all conversion handlers and most COMPATIBLE_IOCTL() entries are gone from this file, but for now, this series only has the parts that have either been reviewed previously, or that are simple enough to include. The main missing piece is the SG_IO/SG_GET_REQUEST_TABLE conversion. I'll post the patches I made for that later, as they need more testing and review from the scsi maintainers. I hope you can still take these for the coming merge window, unless new problems come up. Arnd Arnd Bergmann (26): compat_ioctl: pppoe: fix PPPOEIOCSFWD handling compat_ioctl: move simple ppp command handling into driver compat_ioctl: avoid unused function warning for do_ioctl compat_ioctl: move PPPIOCSCOMPRESS32 to ppp-generic.c compat_ioctl: move PPPIOCSPASS32/PPPIOCSACTIVE32 to ppp_generic.c compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t compat_ioctl: move rtc handling into rtc-dev.c compat_ioctl: add compat_ptr_ioctl() compat_ioctl: move drivers to compat_ptr_ioctl compat_ioctl: use correct compat_ptr() translation in drivers ceph: fix compat_ioctl for ceph_dir_operations compat_ioctl: move more drivers to compat_ptr_ioctl compat_ioctl: move tape handling into drivers compat_ioctl: move ATYFB_CLK handling to atyfb driver compat_ioctl: move isdn/capi ioctl translation into driver compat_ioctl: move rfcomm handlers into driver compat_ioctl: move hci_sock handlers into driver compat_ioctl: remove HCIUART handling compat_ioctl: remove HIDIO translation compat_ioctl: remove translation for sound ioctls compat_ioctl: remove IGNORE_IOCTL() compat_ioctl: remove /dev/random commands compat_ioctl: remove joystick ioctl translation compat_ioctl: remove PCI ioctl translation compat_ioctl: remove /dev/raw ioctl translation compat_ioctl: remove last RAID handling code Documentation/networking/ppp_generic.txt | 2 + arch/um/drivers/hostaudio_kern.c | 1 + drivers/android/binder.c | 2 +- drivers/char/ppdev.c | 12 +- drivers/char/random.c | 1 + drivers/char/tpm/tpm_vtpm_proxy.c | 12 +- drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 +- drivers/dma-buf/dma-buf.c | 4 +- drivers/dma-buf/sw_sync.c | 2 +- drivers/dma-buf/sync_file.c | 2 +- drivers/firewire/core-cdev.c | 12 +- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +- drivers/hid/hidraw.c | 4 +- drivers/hid/usbhid/hiddev.c | 11 +- drivers/hwtracing/stm/core.c | 12 +- drivers/ide/ide-tape.c | 31 +- drivers/iio/industrialio-core.c | 2 +- drivers/infiniband/core/uverbs_main.c | 4 +- drivers/isdn/capi/capi.c | 31 + drivers/isdn/i4l/isdn_ppp.c | 14 +- drivers/media/rc/lirc_dev.c | 4 +- drivers/mfd/cros_ec_dev.c | 4 +- drivers/misc/cxl/flash.c | 8 +- drivers/misc/genwqe/card_dev.c | 23 +- drivers/misc/mei/main.c | 22 +- drivers/misc/vmw_vmci/vmci_host.c | 2 +- drivers/mtd/ubi/cdev.c | 36 +- drivers/net/ppp/ppp_generic.c | 99 +++- drivers/net/ppp/pppoe.c | 7 + drivers/net/ppp/pptp.c | 3 + drivers/net/tap.c | 12 +- drivers/nvdimm/bus.c | 4 +- drivers/nvme/host/core.c | 2 +- drivers/pci/switch/switchtec.c | 2 +- drivers/platform/x86/wmi.c | 2 +- drivers/rpmsg/rpmsg_char.c | 4 +- drivers/rtc/dev.c | 13 +- drivers/rtc/rtc-vr41xx.c | 10 + drivers/s390/char/tape_char.c | 41 +- drivers/sbus/char/display7seg.c | 2 +- drivers/sbus/char/envctrl.c | 4 +- drivers/scsi/3w-xxxx.c | 4 +- drivers/scsi/cxlflash/main.c | 2 +- drivers/scsi/esas2r/esas2r_main.c | 2 +- drivers/scsi/megaraid/megaraid_mm.c | 28 +- drivers/scsi/osst.c | 34 +- drivers/scsi/pmcraid.c | 4 +- drivers/scsi/st.c | 35 +- drivers/staging/android/ion/ion.c | 4 +- drivers/staging/pi433/pi433_if.c | 12 +- drivers/staging/vme/devices/vme_user.c | 2 +- drivers/tee/tee_core.c | 2 +- drivers/usb/class/cdc-wdm.c | 2 +- drivers/usb/class/usbtmc.c | 4 +- drivers/usb/core/devio.c | 16 +- drivers/usb/gadget/function/f_fs.c | 12 +- drivers/vfio/vfio.c | 39 +- drivers/vhost/net.c | 12 +- drivers/vhost/scsi.c | 12 +- drivers/vhost/test.c | 12 +- drivers/vhost/vsock.c | 12 +- drivers/video/fbdev/aty/atyfb_base.c | 12 +- drivers/virt/fsl_hypervisor.c | 2 +- fs/btrfs/super.c | 2 +- fs/ceph/dir.c | 1 + fs/ceph/file.c | 2 +- fs/compat_ioctl.c | 602 +------------------- fs/fat/file.c | 13 +- fs/fuse/dev.c | 2 +- fs/notify/fanotify/fanotify_user.c | 2 +- fs/userfaultfd.c | 2 +- include/linux/fs.h | 7 + include/linux/if_pppox.h | 2 + include/linux/mtio.h | 58 ++ include/uapi/linux/ppp-ioctl.h | 2 + include/uapi/linux/ppp_defs.h | 14 + net/bluetooth/hci_sock.c | 21 +- net/bluetooth/rfcomm/sock.c | 14 +- net/l2tp/l2tp_ppp.c | 3 + net/rfkill/core.c | 2 +- sound/core/oss/pcm_oss.c | 4 + sound/oss/dmasound/dmasound_core.c | 2 + 82 files changed, 452 insertions(+), 1034 deletions(-) create mode 100644 include/linux/mtio.h -- 2.20.0 Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Karsten Keil <isdn(a)linux-pingi.de> Cc: "James E.J. Bottomley" <jejb(a)linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen(a)oracle.com> Cc: Marcel Holtmann <marcel(a)holtmann.org> Cc: netdev(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: devel(a)driverdev.osuosl.org Cc: linux-integrity(a)vger.kernel.org Cc: qat-linux(a)intel.com Cc: linux-crypto(a)vger.kernel.org Cc: linux-media(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: linux1394-devel(a)lists.sourceforge.net Cc: amd-gfx(a)lists.freedesktop.org Cc: linux-input(a)vger.kernel.org Cc: linux-usb(a)vger.kernel.org Cc: linux-arm-kernel(a)lists.infradead.org Cc: linux-ide(a)vger.kernel.org Cc: linux-iio(a)vger.kernel.org Cc: linux-rdma(a)vger.kernel.org Cc: linuxppc-dev(a)lists.ozlabs.org Cc: linux-mtd(a)lists.infradead.org Cc: linux-ppp(a)vger.kernel.org Cc: linux-nvme(a)lists.infradead.org Cc: platform-driver-x86(a)vger.kernel.org Cc: linux-remoteproc(a)vger.kernel.org Cc: linux-rtc(a)vger.kernel.org Cc: linux-s390(a)vger.kernel.org Cc: sparclinux(a)vger.kernel.org Cc: linux-scsi(a)vger.kernel.org Cc: linux-fbdev(a)vger.kernel.org Cc: linux-btrfs(a)vger.kernel.org Cc: ceph-devel(a)vger.kernel.org Cc: linux-fsdevel(a)vger.kernel.org Cc: linux-bluetooth(a)vger.kernel.org Cc: linux-wireless(a)vger.kernel.org Cc: alsa-devel(a)alsa-project.org Cc: y2038(a)lists.linaro.org

7 16

[PATCH 00/57] Convert files to ReST
by Mauro Carvalho Chehab 06 May '19

06 May '19

This series convert lots of files to be properly parsed by Sphinx as ReST files. As it touches on lot of stuff, the series is based on linux-next. I have a separate patch series with do the actual rename and adjustment of references. I opted to submit this first, as it sounds easier to merge this way, as each subsystem maintainer can apply the conversion directly on their trees (or at docs tree), avoiding merge conflects. Both this series and the next steps are on my devel git tree, at: https://git.linuxtv.org/mchehab/experimental.git/log/?h=all_with_indexes-v3 The final output in html can be seen at: https://www.infradead.org/~mchehab/rst_conversion/ Mauro Carvalho Chehab (57): docs: trace: fix some Sphinx warnings docs: acpi: convert text files to ReST docs: aoe: convert text files to ReST docs: arm64: convert documentation to ReST format docs: cdrom/cdrom-standard.tex: convert from LaTeX to ReST docs: cdrom: convert remaining files to ReST docs: cgroup-v1: convert to ReST file format docs: cgroup-v1/blkio-controller.rst: add a note about CFQ scheduler docs: cpu-freq: convert files to ReST docs: device-mapper: convert it to ReST format docs: extcon: move it to acpi dir and convert it to ReST docs: fault-injection: convert it to ReST format docs: fb: convert documentation to ReST format docs: fpga: convert it to ReST docs: gpio: convert it to ReST docs: ide: convert it to ReST format docs: infiniband: convert it to ReST format docs: kbuild: convert it to ReST output docs: kdump: convert it to ReST docs: livepatch: convert it to ReST format docs: locking: convert docs to ReST format docs: mic: convert it to ReST format docs: netlabel: convert it to ReST docs: pcmcia: convert it to ReST format docs: power: convert docs to ReST docs: powerpc: convert docs to ReST docs: pps/pps.txt convert it to ReST and move to API book docs: ptp.txt: convert to ReST and move to driver-api docs: riscv: convert it to ReST format docs: s390: Debugging390.txt: convert table to ascii artwork docs: s390: convert text files to ReST format s390: include/asm/debug.h add kerneldoc markups docs: serial: convert it to ReST format docs: target: convert it to ReST format docs: timers: convert documentation to ReST docs: usb: convert documents to ReST docs: watchdog: convert documents to ReST format docs: x86: convert text files to ReST docs: xilinx: convert eemi.txt to ReST docs: scheduler: convert files to ReST docs: EDID/HOWTO.txt: convert to ReST and move to kernel-API docs: connector.txt: convert to ReST docs: lcd-panel-cgram.txt convert it to ReST and move to admin-guide docs: lp855x-driver.txt: convert to ReST and move to kernel-api docs: m68k: convert it to ReST file format and add to arch bookset docs: cma/debugfs.txt: convert to ReST and move to admin-guide/mm docs: console.txt: convert to ReST format docs: pti_intel_mid.txt: convert to ReST docs: early-userspace: convert docs to ReST docs: driver-model: convert it to ReST format docs: arm: convert text files to ReST format docs: memory-devices: convert ti-emif.txt to ReST format docs: xen-tpmfront.txt: convert the file to ReST format docs: bus-devices: ti-gpmc.txt: convert it to ReST docs: nvmem: convert file to ReST format docs: phy: convert samsung-usb2.txt to ReST format docs: Prepare files to be renamed to *.rst Documentation/EDID/HOWTO.txt | 29 +- Documentation/acpi/DSD-properties-rules.txt | 4 +- Documentation/acpi/acpi-lid.txt | 37 +- Documentation/acpi/aml-debugger.txt | 31 +- Documentation/acpi/apei/einj.txt | 59 +- Documentation/acpi/apei/output_format.txt | 247 +- Documentation/acpi/cppc_sysfs.txt | 52 +- Documentation/acpi/debug.txt | 20 +- .../drivers/extcon-intel-int3496.txt} | 14 +- .../acpi/dsd/data-node-references.txt | 11 +- Documentation/acpi/dsd/graph.txt | 24 +- Documentation/acpi/dsd/leds.txt | 18 +- Documentation/acpi/dsdt-override.txt | 4 +- Documentation/acpi/enumeration.txt | 42 +- Documentation/acpi/gpio-properties.txt | 42 +- Documentation/acpi/i2c-muxes.txt | 21 +- Documentation/acpi/initrd_table_override.txt | 90 +- Documentation/acpi/linuxized-acpica.txt | 58 +- Documentation/acpi/lpit.txt | 8 +- Documentation/acpi/method-customizing.txt | 48 +- Documentation/acpi/method-tracing.txt | 132 +- Documentation/acpi/namespace.txt | 323 +- Documentation/acpi/osi.txt | 3 +- Documentation/acpi/scan_handlers.txt | 9 +- Documentation/acpi/ssdt-overlays.txt | 128 +- Documentation/acpi/video_extension.txt | 16 +- Documentation/aoe/aoe.txt | 63 +- Documentation/aoe/todo.txt | 3 + Documentation/aoe/udev.txt | 2 +- Documentation/arm/Booting | 71 +- Documentation/arm/IXP4xx | 61 +- Documentation/arm/Interrupts | 86 +- Documentation/arm/Marvell/README | 537 ++-- Documentation/arm/Microchip/README | 63 +- Documentation/arm/Netwinder | 59 +- Documentation/arm/OMAP/DSS | 112 +- Documentation/arm/OMAP/README | 7 + Documentation/arm/OMAP/omap_pm | 55 +- Documentation/arm/Porting | 14 +- Documentation/arm/README | 50 +- Documentation/arm/SA1100/ADSBitsy | 14 +- Documentation/arm/SA1100/Assabet | 185 +- Documentation/arm/SA1100/Brutus | 45 +- Documentation/arm/SA1100/CERF | 10 +- Documentation/arm/SA1100/FreeBird | 26 +- Documentation/arm/SA1100/GraphicsClient | 46 +- Documentation/arm/SA1100/GraphicsMaster | 13 +- Documentation/arm/SA1100/HUW_WEBPANEL | 8 +- Documentation/arm/SA1100/Itsy | 14 +- Documentation/arm/SA1100/LART | 3 +- Documentation/arm/SA1100/PLEB | 6 +- Documentation/arm/SA1100/Pangolin | 10 +- Documentation/arm/SA1100/Tifon | 4 +- Documentation/arm/SA1100/Yopy | 5 +- Documentation/arm/SA1100/empeg | 2 - Documentation/arm/SA1100/nanoEngine | 6 +- Documentation/arm/SA1100/serial_UART | 60 +- Documentation/arm/SPEAr/overview.txt | 20 +- Documentation/arm/Samsung-S3C24XX/CPUfreq.txt | 5 +- .../arm/Samsung-S3C24XX/EB2410ITX.txt | 5 +- Documentation/arm/Samsung-S3C24XX/GPIO.txt | 21 +- Documentation/arm/Samsung-S3C24XX/H1940.txt | 5 +- Documentation/arm/Samsung-S3C24XX/NAND.txt | 6 +- .../arm/Samsung-S3C24XX/Overview.txt | 15 +- Documentation/arm/Samsung-S3C24XX/S3C2412.txt | 5 +- Documentation/arm/Samsung-S3C24XX/S3C2413.txt | 7 +- .../arm/Samsung-S3C24XX/SMDK2440.txt | 5 +- Documentation/arm/Samsung-S3C24XX/Suspend.txt | 20 +- .../arm/Samsung-S3C24XX/USB-Host.txt | 16 +- .../arm/Samsung/Bootloader-interface.txt | 27 +- Documentation/arm/Samsung/GPIO.txt | 5 +- Documentation/arm/Samsung/Overview.txt | 11 +- Documentation/arm/Setup | 49 +- Documentation/arm/VFP/release-notes.txt | 4 +- .../arm/cluster-pm-race-avoidance.txt | 177 +- Documentation/arm/firmware.txt | 14 +- Documentation/arm/kernel_mode_neon.txt | 3 + Documentation/arm/kernel_user_helpers.txt | 79 +- Documentation/arm/keystone/Overview.txt | 47 +- Documentation/arm/keystone/knav-qmss.txt | 6 +- Documentation/arm/mem_alignment | 11 +- Documentation/arm/memory.txt | 9 +- Documentation/arm/nwfpe/NOTES | 3 + Documentation/arm/nwfpe/README | 10 +- Documentation/arm/nwfpe/README.FPE | 24 +- Documentation/arm/nwfpe/TODO | 47 +- Documentation/arm/pxa/mfp.txt | 106 +- Documentation/arm/sti/overview.txt | 21 +- Documentation/arm/sti/stih407-overview.txt | 9 +- Documentation/arm/sti/stih415-overview.txt | 8 +- Documentation/arm/sti/stih416-overview.txt | 5 +- Documentation/arm/sti/stih418-overview.txt | 9 +- .../arm/stm32/stm32f429-overview.rst | 5 +- .../arm/stm32/stm32f746-overview.rst | 5 +- .../arm/stm32/stm32f769-overview.rst | 5 +- .../arm/stm32/stm32h743-overview.rst | 5 +- .../arm/stm32/stm32mp157-overview.rst | 1 + Documentation/arm/sunxi/README | 98 +- Documentation/arm/sunxi/clocks.txt | 7 +- Documentation/arm/swp_emulation | 24 +- Documentation/arm/tcm.txt | 54 +- Documentation/arm/uefi.txt | 39 +- Documentation/arm/vlocks.txt | 9 +- Documentation/arm64/acpi_object_usage.txt | 288 +- Documentation/arm64/arm-acpi.txt | 153 +- Documentation/arm64/booting.txt | 91 +- Documentation/arm64/cpu-feature-registers.txt | 190 +- Documentation/arm64/elf_hwcaps.txt | 50 +- Documentation/arm64/hugetlbpage.txt | 7 +- Documentation/arm64/legacy_instructions.txt | 43 +- Documentation/arm64/memory.txt | 91 +- .../arm64/pointer-authentication.txt | 2 + Documentation/arm64/silicon-errata.txt | 63 +- Documentation/arm64/sve.txt | 10 +- Documentation/arm64/tagged-pointers.txt | 6 +- Documentation/auxdisplay/lcd-panel-cgram.txt | 7 +- Documentation/backlight/lp855x-driver.txt | 65 +- Documentation/bt8xxgpio.txt | 1 - Documentation/bus-devices/ti-gpmc.txt | 157 +- Documentation/bus-virt-phys-mapping.txt | 50 +- Documentation/cdrom/Makefile | 21 - Documentation/cdrom/cdrom-standard.tex | 1026 ------- Documentation/cdrom/cdrom-standard.txt | 1063 +++++++ Documentation/cdrom/ide-cd | 178 +- Documentation/cdrom/packet-writing.txt | 27 +- Documentation/cgroup-v1/blkio-controller.txt | 103 +- Documentation/cgroup-v1/cgroups.txt | 180 +- Documentation/cgroup-v1/cpuacct.txt | 15 +- Documentation/cgroup-v1/cpusets.txt | 203 +- Documentation/cgroup-v1/devices.txt | 40 +- Documentation/cgroup-v1/freezer-subsystem.txt | 14 +- Documentation/cgroup-v1/hugetlb.txt | 31 +- Documentation/cgroup-v1/memcg_test.txt | 259 +- Documentation/cgroup-v1/memory.txt | 449 +-- Documentation/cgroup-v1/net_cls.txt | 37 +- Documentation/cgroup-v1/net_prio.txt | 24 +- Documentation/cgroup-v1/pids.txt | 78 +- Documentation/cgroup-v1/rdma.txt | 66 +- Documentation/cma/debugfs.txt | 6 +- Documentation/connector/connector.txt | 128 +- Documentation/console/console.txt | 61 +- Documentation/cpu-freq/amd-powernow.txt | 11 +- Documentation/cpu-freq/core.txt | 66 +- Documentation/cpu-freq/cpu-drivers.txt | 217 +- Documentation/cpu-freq/cpufreq-nforce2.txt | 12 +- Documentation/cpu-freq/cpufreq-stats.txt | 141 +- Documentation/cpu-freq/pcc-cpufreq.txt | 102 +- .../device-mapper/cache-policies.txt | 24 +- Documentation/device-mapper/cache.txt | 206 +- Documentation/device-mapper/delay.txt | 29 +- Documentation/device-mapper/dm-crypt.txt | 57 +- Documentation/device-mapper/dm-flakey.txt | 45 +- Documentation/device-mapper/dm-init.txt | 75 +- Documentation/device-mapper/dm-integrity.txt | 55 +- Documentation/device-mapper/dm-io.txt | 14 +- Documentation/device-mapper/dm-log.txt | 5 +- .../device-mapper/dm-queue-length.txt | 25 +- Documentation/device-mapper/dm-raid.txt | 225 +- .../device-mapper/dm-service-time.txt | 68 +- Documentation/device-mapper/dm-uevent.txt | 143 +- Documentation/device-mapper/dm-zoned.txt | 10 +- Documentation/device-mapper/era.txt | 36 +- Documentation/device-mapper/kcopyd.txt | 10 +- Documentation/device-mapper/linear.txt | 100 +- Documentation/device-mapper/log-writes.txt | 91 +- .../device-mapper/persistent-data.txt | 4 + Documentation/device-mapper/snapshot.txt | 116 +- Documentation/device-mapper/statistics.txt | 62 +- Documentation/device-mapper/striped.txt | 68 +- Documentation/device-mapper/switch.txt | 47 +- .../device-mapper/thin-provisioning.txt | 68 +- Documentation/device-mapper/unstriped.txt | 111 +- Documentation/device-mapper/verity.txt | 20 +- Documentation/device-mapper/writecache.txt | 13 +- Documentation/device-mapper/zero.txt | 14 +- Documentation/driver-model/binding.txt | 20 +- Documentation/driver-model/bus.txt | 69 +- Documentation/driver-model/class.txt | 74 +- .../driver-model/design-patterns.txt | 106 +- Documentation/driver-model/device.txt | 57 +- Documentation/driver-model/devres.txt | 50 +- Documentation/driver-model/driver.txt | 112 +- Documentation/driver-model/overview.txt | 37 +- Documentation/driver-model/platform.txt | 30 +- Documentation/driver-model/porting.txt | 333 +-- Documentation/early-userspace/README | 3 + .../early-userspace/buffer-format.txt | 19 +- .../fault-injection/fault-injection.txt | 265 +- .../fault-injection/notifier-error-inject.txt | 18 +- .../fault-injection/nvme-fault-injection.txt | 174 +- .../fault-injection/provoke-crashes.txt | 40 +- Documentation/fb/api.txt | 29 +- Documentation/fb/arkfb.txt | 8 +- Documentation/fb/aty128fb.txt | 31 +- Documentation/fb/cirrusfb.txt | 47 +- Documentation/fb/cmap_xfbdev.txt | 57 +- Documentation/fb/deferred_io.txt | 28 +- Documentation/fb/efifb.txt | 18 +- Documentation/fb/ep93xx-fb.txt | 25 +- Documentation/fb/fbcon.txt | 177 +- Documentation/fb/framebuffer.txt | 79 +- Documentation/fb/gxfb.txt | 22 +- Documentation/fb/intel810.txt | 77 +- Documentation/fb/intelfb.txt | 62 +- Documentation/fb/internals.txt | 24 +- Documentation/fb/lxfb.txt | 23 +- Documentation/fb/matroxfb.txt | 526 ++-- Documentation/fb/metronomefb.txt | 8 +- Documentation/fb/modedb.txt | 44 +- Documentation/fb/pvr2fb.txt | 55 +- Documentation/fb/pxafb.txt | 81 +- Documentation/fb/s3fb.txt | 8 +- Documentation/fb/sa1100fb.txt | 23 +- Documentation/fb/sh7760fb.txt | 153 +- Documentation/fb/sisfb.txt | 40 +- Documentation/fb/sm501.txt | 7 +- Documentation/fb/sm712fb.txt | 18 +- Documentation/fb/sstfb.txt | 231 +- Documentation/fb/tgafb.txt | 30 +- Documentation/fb/tridentfb.txt | 34 +- Documentation/fb/udlfb.txt | 55 +- Documentation/fb/uvesafb.txt | 128 +- Documentation/fb/vesafb.txt | 121 +- Documentation/fb/viafb.txt | 393 +-- Documentation/fb/vt8623fb.txt | 10 +- Documentation/fpga/dfl.txt | 58 +- Documentation/gpio/sysfs.txt | 39 +- Documentation/highuid.txt | 2 +- Documentation/ide/ide-tape.txt | 23 +- Documentation/ide/ide.txt | 147 +- Documentation/ide/warm-plug-howto.txt | 10 +- Documentation/index.rst | 1 + Documentation/infiniband/core_locking.txt | 64 +- Documentation/infiniband/ipoib.txt | 24 +- Documentation/infiniband/opa_vnic.txt | 108 +- Documentation/infiniband/sysfs.txt | 4 +- Documentation/infiniband/tag_matching.txt | 5 + Documentation/infiniband/user_mad.txt | 33 +- Documentation/infiniband/user_verbs.txt | 12 +- Documentation/kbuild/headers_install.txt | 5 +- Documentation/kbuild/kbuild.txt | 119 +- Documentation/kbuild/kconfig-language.txt | 232 +- .../kbuild/kconfig-macro-language.txt | 37 +- Documentation/kbuild/kconfig.txt | 136 +- Documentation/kbuild/makefiles.txt | 518 ++-- Documentation/kbuild/modules.txt | 166 +- Documentation/kdump/kdump.txt | 131 +- Documentation/kdump/vmcoreinfo.txt | 59 +- Documentation/kobject.txt | 2 +- Documentation/ldm.txt | 3 +- Documentation/livepatch/callbacks.txt | 12 +- .../livepatch/cumulative-patches.txt | 14 +- Documentation/livepatch/livepatch.txt | 56 +- Documentation/livepatch/module-elf-format.txt | 211 +- Documentation/livepatch/shadow-vars.txt | 65 +- Documentation/locking/lockdep-design.txt | 41 +- Documentation/locking/lockstat.txt | 219 +- Documentation/locking/locktorture.txt | 105 +- Documentation/locking/mutex-design.txt | 26 +- Documentation/locking/rt-mutex-design.txt | 135 +- Documentation/locking/rt-mutex.txt | 30 +- Documentation/locking/spinlocks.txt | 32 +- Documentation/locking/ww-mutex-design.txt | 82 +- Documentation/m68k/kernel-options.txt | 319 +- Documentation/memory-barriers.txt | 2 +- Documentation/memory-devices/ti-emif.txt | 25 +- Documentation/mic/mic_overview.txt | 6 +- Documentation/mic/scif_overview.txt | 58 +- Documentation/netlabel/cipso_ipv4.txt | 19 +- Documentation/netlabel/introduction.txt | 16 +- Documentation/netlabel/lsm_interface.txt | 16 +- Documentation/numastat.txt | 1 - Documentation/nvmem/nvmem.txt | 110 +- Documentation/pcmcia/devicetable.txt | 4 + Documentation/pcmcia/driver-changes.txt | 35 +- Documentation/pcmcia/driver.txt | 18 +- Documentation/pcmcia/locking.txt | 39 +- Documentation/phy/samsung-usb2.txt | 60 +- Documentation/pnp.txt | 11 +- Documentation/power/apm-acpi.txt | 10 +- Documentation/power/basic-pm-debugging.txt | 77 +- Documentation/power/charger-manager.txt | 101 +- Documentation/power/drivers-testing.txt | 5 + Documentation/power/energy-model.txt | 101 +- Documentation/power/freezing-of-tasks.txt | 91 +- Documentation/power/interface.txt | 20 +- Documentation/power/opp.txt | 175 +- Documentation/power/pci.txt | 77 +- Documentation/power/pm_qos_interface.txt | 127 +- Documentation/power/power_supply_class.txt | 269 +- Documentation/power/powercap/powercap.txt | 297 +- Documentation/power/regulator/consumer.txt | 141 +- Documentation/power/regulator/design.txt | 9 +- Documentation/power/regulator/machine.txt | 47 +- Documentation/power/regulator/overview.txt | 51 +- Documentation/power/regulator/regulator.txt | 18 +- Documentation/power/runtime_pm.txt | 234 +- Documentation/power/s2ram.txt | 20 +- .../power/suspend-and-cpuhotplug.txt | 42 +- .../power/suspend-and-interrupts.txt | 2 + Documentation/power/swsusp-and-swap-files.txt | 15 +- Documentation/power/swsusp-dmcrypt.txt | 118 +- Documentation/power/swsusp.txt | 639 ++-- Documentation/power/tricks.txt | 6 +- Documentation/power/userland-swsusp.txt | 53 +- Documentation/power/video.txt | 156 +- Documentation/powerpc/DAWR-POWER9.txt | 10 +- Documentation/powerpc/bootwrapper.txt | 28 +- Documentation/powerpc/cpu_families.txt | 23 +- Documentation/powerpc/cpu_features.txt | 6 +- Documentation/powerpc/cxl.txt | 46 +- Documentation/powerpc/cxlflash.txt | 8 +- Documentation/powerpc/dscr.txt | 18 +- .../powerpc/eeh-pci-error-recovery.txt | 108 +- .../powerpc/firmware-assisted-dump.txt | 117 +- Documentation/powerpc/hvcs.txt | 108 +- Documentation/powerpc/isa-versions.rst | 13 +- Documentation/powerpc/mpc52xx.txt | 12 +- .../powerpc/pci_iov_resource_on_powernv.txt | 15 +- Documentation/powerpc/pmu-ebb.txt | 1 + Documentation/powerpc/ptrace.txt | 169 +- Documentation/powerpc/qe_firmware.txt | 37 +- Documentation/powerpc/syscall64-abi.txt | 29 +- .../powerpc/transactional_memory.txt | 45 +- Documentation/pps/pps.txt | 67 +- Documentation/preempt-locking.txt | 2 +- Documentation/pti/pti_intel_mid.txt | 135 +- Documentation/ptp/ptp.txt | 26 +- Documentation/rbtree.txt | 52 +- Documentation/riscv/pmu.txt | 98 +- Documentation/rtc.txt | 6 +- Documentation/s390/3270.txt | 85 +- Documentation/s390/CommonIO | 47 +- Documentation/s390/DASD | 33 +- Documentation/s390/Debugging390.txt | 2599 ++++++++++------- Documentation/s390/cds.txt | 354 ++- Documentation/s390/driver-model.txt | 179 +- Documentation/s390/monreader.txt | 85 +- Documentation/s390/qeth.txt | 36 +- Documentation/s390/s390dbf.txt | 639 ++-- Documentation/s390/vfio-ap.txt | 487 +-- Documentation/s390/vfio-ccw.txt | 88 +- Documentation/s390/zfcpdump.txt | 2 + Documentation/scheduler/completion.txt | 38 +- Documentation/scheduler/sched-arch.txt | 18 +- Documentation/scheduler/sched-bwc.txt | 28 +- Documentation/scheduler/sched-deadline.txt | 293 +- Documentation/scheduler/sched-design-CFS.txt | 15 +- Documentation/scheduler/sched-domains.txt | 8 +- Documentation/scheduler/sched-energy.txt | 47 +- Documentation/scheduler/sched-nice-design.txt | 6 +- Documentation/scheduler/sched-rt-group.txt | 28 +- Documentation/scheduler/sched-stats.txt | 35 +- Documentation/security/tpm/xen-tpmfront.txt | 101 +- Documentation/serial/README.cycladesZ | 5 +- Documentation/serial/driver | 113 +- Documentation/serial/moxa-smartio | 750 ++--- Documentation/serial/n_gsm.txt | 81 +- Documentation/serial/rocket.txt | 144 +- Documentation/serial/serial-iso7816.txt | 21 +- Documentation/serial/serial-rs485.txt | 22 +- Documentation/serial/tty.txt | 111 +- Documentation/target/tcm_mod_builder.txt | 200 +- Documentation/target/tcmu-design.txt | 268 +- Documentation/timers/NO_HZ.txt | 40 +- Documentation/timers/highres.txt | 11 +- Documentation/timers/hpet.txt | 4 +- Documentation/timers/hrtimers.txt | 6 +- Documentation/timers/timekeeping.txt | 3 +- Documentation/timers/timers-howto.txt | 15 +- Documentation/trace/ftrace.rst | 1 + Documentation/trace/histogram.rst | 86 +- Documentation/usb/WUSB-Design-overview.txt | 56 +- Documentation/usb/acm.txt | 156 +- Documentation/usb/authorization.txt | 75 +- Documentation/usb/chipidea.txt | 101 +- Documentation/usb/dwc3.txt | 12 +- Documentation/usb/ehci.txt | 42 +- Documentation/usb/functionfs.txt | 17 +- Documentation/usb/gadget-testing.txt | 609 ++-- Documentation/usb/gadget_configfs.txt | 302 +- Documentation/usb/gadget_hid.txt | 175 +- Documentation/usb/gadget_multi.txt | 43 +- Documentation/usb/gadget_printer.txt | 155 +- Documentation/usb/gadget_serial.txt | 73 +- Documentation/usb/iuu_phoenix.txt | 34 +- Documentation/usb/mass-storage.txt | 19 +- Documentation/usb/misc_usbsevseg.txt | 9 +- Documentation/usb/mtouchusb.txt | 42 +- Documentation/usb/ohci.txt | 5 +- Documentation/usb/rio.txt | 83 +- Documentation/usb/usb-help.txt | 21 +- Documentation/usb/usb-serial.txt | 203 +- Documentation/usb/usbip_protocol.txt | 552 ++-- Documentation/usb/usbmon.txt | 100 +- .../convert_drivers_to_kernel_api.txt | 109 +- Documentation/watchdog/hpwdt.txt | 23 +- Documentation/watchdog/mlx-wdt.txt | 24 +- Documentation/watchdog/pcwd-watchdog.txt | 13 +- Documentation/watchdog/watchdog-api.txt | 76 +- .../watchdog/watchdog-kernel-api.txt | 89 +- .../watchdog/watchdog-parameters.txt | 672 +++-- Documentation/watchdog/watchdog-pm.txt | 3 + Documentation/watchdog/wdt.txt | 31 +- Documentation/x86/amd-memory-encryption.txt | 10 +- Documentation/x86/boot.txt | 578 ++-- Documentation/x86/earlyprintk.txt | 69 +- Documentation/x86/entry_64.txt | 11 +- Documentation/x86/exception-tables.txt | 245 +- Documentation/x86/i386/IO-APIC.txt | 23 +- Documentation/x86/intel_mpx.txt | 55 +- Documentation/x86/microcode.txt | 51 +- Documentation/x86/mtrr.txt | 442 +-- Documentation/x86/orc-unwinder.txt | 1 + Documentation/x86/pat.txt | 217 +- Documentation/x86/protection-keys.txt | 33 +- Documentation/x86/pti.txt | 8 +- Documentation/x86/resctrl_ui.txt | 621 ++-- Documentation/x86/tlb.txt | 12 +- Documentation/x86/topology.txt | 26 +- Documentation/x86/usb-legacy-support.txt | 33 +- Documentation/x86/x86_64/5level-paging.txt | 14 +- Documentation/x86/x86_64/boot-options.txt | 98 +- Documentation/x86/x86_64/mm.txt | 212 +- Documentation/x86/x86_64/uefi.txt | 21 +- Documentation/x86/zero-page.txt | 67 +- Documentation/xilinx/eemi.txt | 8 +- Documentation/zorro.txt | 5 +- MAINTAINERS | 2 +- arch/arm64/kernel/kexec_image.c | 2 +- arch/s390/include/asm/debug.h | 231 ++ drivers/cdrom/cdrom.c | 2 +- include/linux/connector.h | 63 +- 433 files changed, 21459 insertions(+), 16370 deletions(-) rename Documentation/{extcon/intel-int3496.txt => acpi/drivers/extcon-intel-int3496.txt} (66%) delete mode 100644 Documentation/arm/SA1100/empeg delete mode 100644 Documentation/cdrom/Makefile delete mode 100644 Documentation/cdrom/cdrom-standard.tex create mode 100644 Documentation/cdrom/cdrom-standard.txt -- 2.20.1

3 4

[PATCH v5 0/2] Do not output logo on quiet boots
by Prarit Bhargava 06 May '19

06 May '19

On text-based systems the 'quiet' boot option will show printk levels higher than CONSOLE_LOGLEVEL_QUIET. The displaying of the Tux logo during boot can cause some consoles to lose display data and as a result confuse the end user. Do not display the Tux logo on systems that are in 'quiet' boot. v2: It helps to commit all my changes before sending them. Remove extra bracket. v3: buildbot error fix: fbcon can be built as part of a module so export console_printk v4: move console_printk change to separate patch, and drop logo cleanup v5: Only set FBCON_LOGO_DONTSHOW for console loglevel Signed-off-by: Prarit Bhargava <prarit(a)redhat.com> Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: Marko Myllynen <myllynen(a)redhat.com> Cc: Steven Rostedt (VMware) <rostedt(a)goodmis.org> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie(a)samsung.com> Cc: Kees Cook <keescook(a)chromium.org> Cc: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Thierry Reding <treding(a)nvidia.com> Cc: Yisheng Xie <ysxie(a)foxmail.com> Cc: Petr Mladek <pmladek(a)suse.com> Cc: Sergey Senozhatsky <sergey.senozhatsky(a)gmail.com> Cc: dri-devel(a)lists.freedesktop.org Prarit Bhargava (2): printk: Export console_printk fbcon: Silence fbcon logo on 'quiet' boots drivers/video/fbdev/core/fbcon.c | 8 +++++++- kernel/printk/printk.c | 1 + 2 files changed, 8 insertions(+), 1 deletion(-) -- 2.17.2

3 7

[PATCH 1/2] drm/dp: drmP.h include removal
by Jani Nikula 06 May '19

06 May '19

Continue to get rid of drmP.h. Add minimal includes to build. Sort includes while at it. Signed-off-by: Jani Nikula <jani.nikula(a)intel.com> --- drivers/gpu/drm/drm_dp_aux_dev.c | 8 +++++--- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 4 +++- drivers/gpu/drm/drm_dp_helper.c | 12 +++++++----- drivers/gpu/drm/drm_dp_mst_topology.c | 13 +++++++------ 4 files changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c index 0e4f25d..5be28e 100644 --- a/drivers/gpu/drm/drm_dp_aux_dev.c +++ b/drivers/gpu/drm/drm_dp_aux_dev.c @@ -27,15 +27,17 @@ #include <linux/device.h> #include <linux/fs.h> -#include <linux/slab.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/sched/signal.h> +#include <linux/slab.h> #include <linux/uaccess.h> #include <linux/uio.h> -#include <drm/drm_dp_helper.h> + #include <drm/drm_crtc.h> -#include <drm/drmP.h> +#include <drm/drm_dp_helper.h> +#include <drm/drm_print.h> #include "drm_crtc_helper_internal.h" diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index e7f4fe2..1c9ea9f 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -20,13 +20,15 @@ * OTHER DEALINGS IN THE SOFTWARE. */ +#include <linux/delay.h> #include <linux/errno.h> #include <linux/export.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/string.h> + #include <drm/drm_dp_dual_mode_helper.h> -#include <drm/drmP.h> +#include <drm/drm_print.h> /** * DOC: dp dual mode helpers diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 54a641..e6af75 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -20,16 +20,18 @@ * OF THIS SOFTWARE. */ -#include <linux/kernel.h> -#include <linux/module.h> #include <linux/delay.h> -#include <linux/init.h> #include <linux/errno.h> -#include <linux/sched.h> #include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> #include <linux/seq_file.h> + #include <drm/drm_dp_helper.h> -#include <drm/drmP.h> +#include <drm/drm_print.h> +#include <drm/drm_vblank.h> #include "drm_crtc_helper_internal.h" diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index c630ed..da1abc 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -20,19 +20,20 @@ * OF THIS SOFTWARE. */ -#include <linux/kernel.h> #include <linux/delay.h> -#include <linux/init.h> #include <linux/errno.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> #include <linux/sched.h> #include <linux/seq_file.h> -#include <linux/i2c.h> -#include <drm/drm_dp_mst_helper.h> -#include <drm/drmP.h> -#include <drm/drm_fixed.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_dp_mst_helper.h> +#include <drm/drm_drv.h> +#include <drm/drm_fixed.h> +#include <drm/drm_print.h> #include <drm/drm_probe_helper.h> /** -- 2.20.1

2 4

[Bug 110250] [Regression linux 5.1-rc1] Displayport 1.2 tty second monitor corruption
by bugzilla-daemon＠freedesktop.org 06 May '19

06 May '19

https://bugs.freedesktop.org/show_bug.cgi?id=110250 Bug ID: 110250 Summary: [Regression linux 5.1-rc1] Displayport 1.2 tty second monitor corruption Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel(a)lists.freedesktop.org Reporter: freedesktop(a)sibrenvasse.nl Created attachment 143781 --> https://bugs.freedesktop.org/attachment.cgi?id=143781&action=edit Bisect log & result I have two monitors daisy chained via Displayport 1.2. GPU: Radeon RX 570 4GB amdgpu.dc=1 (issue does not occur when disabled) After upgrading to Linux 5.1-rc1 when switching to a tty the second monitor (that's connected to the first) displays a corrupted version of the first monitor. Previously this would display a stretched version of monitor 1 (because of a different aspect ratio). There is no output in dmesg when switching to a tty. I have bisected the issue between tags v5.0 and v5.1-rc1. The result was bc7f670ee04cd619f8c4627c37d77b3618bc5edd as the first bad commit. Bisect log attached. commit 8a48b44cd00f10e83f573b9028d11bd90a36de26 GOOD commit bc7f670ee04cd619f8c4627c37d77b3618bc5edd BAD After switching from graphical environment to a tty, the second monitor will keep displaying the last frame of the graphical environment. commit b2e85302494a6b7d3a3006c8d80a729377600628 BAD Screen display is corrupted. -- You are receiving this mail because: You are the assignee for the bug.

1 4

[Bug 110621] inbox is going to blank page
by bugzilla-daemon＠freedesktop.org 06 May '19

06 May '19

https://bugs.freedesktop.org/show_bug.cgi?id=110621 abcd <sunilakash47(a)gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED -- You are receiving this mail because: You are the assignee for the bug.

1 0

[Bug 110621] inbox is going to blank page
by bugzilla-daemon＠freedesktop.org 06 May '19

06 May '19

1 0

KASAN: use-after-free Read in add_uevent_var
by syzbot 06 May '19

06 May '19

Hello, syzbot found the following crash on: HEAD commit: a4ccb5f9 Merge tag 'drm-fixes-2019-05-03' of git://anongit.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1205d570a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=2bd0da4b8de0b004 dashboard link: https://syzkaller.appspot.com/bug?extid=6da9575ba2db4da91831 compiler: gcc (GCC) 9.0.0 20181231 (experimental) userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1769f62ca00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=167ae984a00000 The bug was bisected to: commit 0a1c7959acd9674a0e4e59f911f3e5fbf25fd693 Author: Wolfram Sang <wsa(a)the-dreams.de> Date: Wed May 17 15:22:18 2017 +0000 gpu: drm: tc35876x: move header file out of I2C realm bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=138fe12ca00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=104fe12ca00000 console output: https://syzkaller.appspot.com/x/log.txt?x=178fe12ca00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+6da9575ba2db4da91831(a)syzkaller.appspotmail.com Fixes: 0a1c7959acd9 ("gpu: drm: tc35876x: move header file out of I2C realm") RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005502 RDX: 0000000000000000 RSI: 00000000080daf20 RDI: 00000000080f0f84 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ================================================================== BUG: KASAN: use-after-free in string+0x208/0x230 lib/vsprintf.c:606 Read of size 1 at addr ffff8880a55aa200 by task syz-executor222/7839 CPU: 1 PID: 7839 Comm: syz-executor222 Not tainted 5.1.0-rc7+ #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 __asan_report_load1_noabort+0x14/0x20 mm/kasan/generic_report.c:129 string+0x208/0x230 lib/vsprintf.c:606 vsnprintf+0xbfc/0x1af0 lib/vsprintf.c:2396 add_uevent_var+0x14d/0x310 lib/kobject_uevent.c:661 input_dev_uevent+0x163/0x890 drivers/input/input.c:1594 dev_uevent+0x312/0x580 drivers/base/core.c:1180 kobject_uevent_env+0x487/0x1030 lib/kobject_uevent.c:549 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:638 kobject_cleanup lib/kobject.c:649 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:67 [inline] kobject_put.cold+0x177/0x2ec lib/kobject.c:708 put_device+0x20/0x30 drivers/base/core.c:2205 input_put_device include/linux/input.h:349 [inline] evdev_free+0x51/0x70 drivers/input/evdev.c:369 device_release+0x7d/0x210 drivers/base/core.c:1064 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:67 [inline] kobject_put.cold+0x28f/0x2ec lib/kobject.c:708 cdev_default_release+0x41/0x50 fs/char_dev.c:607 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:67 [inline] kobject_put.cold+0x28f/0x2ec lib/kobject.c:708 cdev_put.part.0+0x39/0x50 fs/char_dev.c:368 cdev_put+0x20/0x30 fs/char_dev.c:366 __fput+0x6df/0x8d0 fs/file_table.c:281 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x90a/0x2fa0 kernel/exit.c:876 do_group_exit+0x135/0x370 kernel/exit.c:980 __do_sys_exit_group kernel/exit.c:991 [inline] __se_sys_exit_group kernel/exit.c:989 [inline] __ia32_sys_exit_group+0x44/0x50 kernel/exit.c:989 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7ff7849 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000fff2db8c EFLAGS: 00000292 ORIG_RAX: 00000000000000fc RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080f1298 RDX: 0000000000000000 RSI: 00000000080daf1c RDI: 00000000080f12a0 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 7839: save_stack+0x45/0xd0 mm/kasan/common.c:75 set_track mm/kasan/common.c:87 [inline] __kasan_kmalloc mm/kasan/common.c:497 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:470 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:511 __do_kmalloc mm/slab.c:3727 [inline] __kmalloc_track_caller+0x158/0x740 mm/slab.c:3742 kstrndup+0x5f/0xf0 mm/util.c:96 uinput_dev_setup+0x1d4/0x310 drivers/input/misc/uinput.c:475 uinput_ioctl_handler.isra.0+0x12b8/0x1cc0 drivers/input/misc/uinput.c:886 uinput_compat_ioctl+0x70/0x90 drivers/input/misc/uinput.c:1062 __do_compat_sys_ioctl fs/compat_ioctl.c:1052 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:998 [inline] __ia32_compat_sys_ioctl+0x197/0x620 fs/compat_ioctl.c:998 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Freed by task 7839: save_stack+0x45/0xd0 mm/kasan/common.c:75 set_track mm/kasan/common.c:87 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:459 kasan_slab_free+0xe/0x10 mm/kasan/common.c:467 __cache_free mm/slab.c:3499 [inline] kfree+0xcf/0x230 mm/slab.c:3822 uinput_destroy_device+0xf8/0x250 drivers/input/misc/uinput.c:311 uinput_ioctl_handler.isra.0+0x886/0x1cc0 drivers/input/misc/uinput.c:882 uinput_compat_ioctl+0x70/0x90 drivers/input/misc/uinput.c:1062 __do_compat_sys_ioctl fs/compat_ioctl.c:1052 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:998 [inline] __ia32_compat_sys_ioctl+0x197/0x620 fs/compat_ioctl.c:998 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 The buggy address belongs to the object at ffff8880a55aa200 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff8880a55aa200, ffff8880a55aa220) The buggy address belongs to the page: page:ffffea0002956a80 count:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a55aafc1 flags: 0x1fffc0000000200(slab) raw: 01fffc0000000200 ffffea0002949e88 ffffea00029482c8 ffff8880aa4001c0 raw: ffff8880a55aafc1 ffff8880a55aa000 0000000100000039 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a55aa100: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8880a55aa180: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc > ffff8880a55aa200: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ^ ffff8880a55aa280: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8880a55aa300: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ================================================================== --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches

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[PATCH v1 0/3] Tegra DRM: Support memory bandwidth management for display
by Dmitry Osipenko 06 May '19

06 May '19

Hello, Display controllers have a need for minimum memory bandwidth in order to maintain data-stream to output at a required rate. There is a visual corruption once the requirement is violated and CRTC reset may be required in order to recover. This series adds preliminary support for the memory bandwidth management, it will become active once Memory Controller drivers will get support for the PM memory bandwidth QoS. Dmitry Osipenko (3): drm/tegra: dc: Tune up high priority request controls on Tegra20 drm/tegra: dc: Extend debug stats with total number of events drm/tegra: Support PM QoS memory bandwidth management drivers/gpu/drm/tegra/dc.c | 234 +++++++++++++++++++++++++++++++++- drivers/gpu/drm/tegra/dc.h | 13 ++ drivers/gpu/drm/tegra/drm.c | 18 +++ drivers/gpu/drm/tegra/plane.c | 1 + drivers/gpu/drm/tegra/plane.h | 4 +- 5 files changed, 264 insertions(+), 6 deletions(-) -- 2.21.0

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dri-devel May 2019