If variable is of Type, use printk format specifier:
------------------------------------------------------------
- char %hhd or %hhx
- unsigned char %hhu or %hhx
- short int %hd or %hx
- unsigned short int %hu or %hx
+ char %d or %x
+ unsigned char %u or %x
+ short int %d or %x
+ unsigned short int %u or %x
int %d or %x
unsigned int %u or %x
long %ld or %lx
unsigned long long %llu or %llx
size_t %zu or %zx
ssize_t %zd or %zx
- s8 %hhd or %hhx
- u8 %hhu or %hhx
- s16 %hd or %hx
- u16 %hu or %hx
+ s8 %d or %x
+ u8 %u or %x
+ s16 %d or %x
+ u16 %u or %x
s32 %d or %x
u32 %u or %x
s64 %lld or %llx
the first 32 bits are zeroed. The kernel will print ``(ptrval)`` until it
gathers enough entropy. If you *really* want the address see %px below.
+ Error Pointers
+ --------------
+
+ ::
+
+ %pe -ENOSPC
+
+ For printing error pointers (i.e. a pointer for which IS_ERR() is true)
+ as a symbolic error name. Error values for which no symbolic name is
+ known are printed in decimal, while a non-ERR_PTR passed as the
+ argument to %pe gets treated as ordinary %p.
+
Symbols/Function Pointers
-------------------------
For printing kernel pointers which should be hidden from unprivileged
users. The behaviour of %pK depends on the kptr_restrict sysctl - see
-Documentation/sysctl/kernel.txt for more details.
+Documentation/admin-guide/sysctl/kernel.rst for more details.
Unmodified Addresses
--------------------
S: Maintained
-F: drivers/net/ethernet/realtek/r8169.c
+F: drivers/net/ethernet/realtek/r8169*
8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
S: Supported
F: drivers/video/backlight/adp8860_bl.c
-ADS1015 HARDWARE MONITOR DRIVER
-S: Maintained
-F: Documentation/hwmon/ads1015.rst
-F: drivers/hwmon/ads1015.c
-F: include/linux/platform_data/ads1015.h
-
ADT746X FAN DRIVER
S: Maintained
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/misc/adxl34x.c
+F: Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
ADXL372 THREE-AXIS DIGITAL ACCELEROMETER DRIVER
F: drivers/iio/accel/adxl372.c
F: drivers/iio/accel/adxl372_spi.c
F: drivers/iio/accel/adxl372_i2c.c
-F: Documentation/devicetree/bindings/iio/accel/adxl372.txt
+F: Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
AF9013 MEDIA DRIVER
S: Maintained
F: drivers/net/ethernet/alacritech/*
+FORCEDETH GIGABIT ETHERNET DRIVER
+S: Maintained
+F: drivers/net/ethernet/nvidia/*
+
ALCATEL SPEEDTOUCH USB DRIVER
S: Maintained
-F: Documentation/i2c/busses/i2c-ali1563
+F: Documentation/i2c/busses/i2c-ali1563.rst
F: drivers/i2c/busses/i2c-ali1563.c
ALLEGRO DVT VIDEO IP CORE DRIVER
S: Maintained
F: drivers/staging/media/allegro-dvt/
+ALLWINNER CPUFREQ DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt
+F: drivers/cpufreq/sun50i-cpufreq-nvmem.c
+
ALLWINNER SECURITY SYSTEM
F: drivers/crypto/sunxi-ss/
ALLWINNER VPU DRIVER
S: Maintained
S: Maintained
F: drivers/mfd/altera-sysmgr.c
-F: include/linux/mfd/altera-sysgmr.h
+F: include/linux/mfd/altera-sysmgr.h
ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT
F: include/linux/amd-iommu.h
AMD KFD
-T: git git://people.freedesktop.org/~gabbayo/linux.git
-S: Supported
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
-F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+T: git git://people.freedesktop.org/~agd5f/linux
+S: Supported
+F: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd*.[ch]
F: drivers/gpu/drm/amd/amdkfd/
F: drivers/gpu/drm/amd/include/cik_structs.h
F: drivers/gpu/drm/amd/include/kgd_kfd_interface.h
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/iio/adc/ad7124.c
-F: Documentation/devicetree/bindings/iio/adc/adi,ad7124.txt
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
ANALOG DEVICES INC AD7606 DRIVER
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/iio/adc/ad7606.c
-F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
ANALOG DEVICES INC AD7768-1 DRIVER
F: drivers/iio/adc/ad7768-1.c
F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt
+ANALOG DEVICES INC AD7780 DRIVER
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/iio/adc/ad7780.c
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
+
ANALOG DEVICES INC AD9389B DRIVER
F: drivers/mux/adgs1408.c
F: Documentation/devicetree/bindings/mux/adi,adgs1408.txt
+ANALOG DEVICES INC ADIN DRIVER
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/net/phy/adin.c
+F: Documentation/devicetree/bindings/net/adi,adin.yaml
+
+ANALOG DEVICES INC ADIS DRIVER LIBRARY
+S: Supported
+F: include/linux/iio/imu/adis.h
+F: drivers/iio/imu/adis.c
+
+ANALOG DEVICES INC ADIS16460 DRIVER
+S: Supported
+W: http://ez.analog.com/community/linux-device-drivers
+F: drivers/iio/imu/adis16460.c
+F: Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
+
ANALOG DEVICES INC ADP5061 DRIVER
S: Supported
F: drivers/perf/xgene_pmu.c
-F: Documentation/perf/xgene-pmu.txt
+F: Documentation/admin-guide/perf/xgene-pmu.rst
F: Documentation/devicetree/bindings/perf/apm-xgene-pmu.txt
APTINA CAMERA SENSOR PLL
S: Maintained
F: drivers/media/i2c/aptina-pll.*
+AQUANTIA ETHERNET DRIVER (atlantic)
+S: Supported
+W: http://www.aquantia.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+F: drivers/net/ethernet/aquantia/atlantic/
+F: Documentation/networking/device_drivers/aquantia/atlantic.txt
+
ARC FRAMEBUFFER DRIVER
S: Maintained
ARM ARCHITECTED TIMER DRIVER
S: Maintained
F: arch/arm/include/asm/arch_timer.h
S: Supported
-T: git git://linux-arm.org/linux-ld.git for-upstream/mali-dp
+T: git git://anongit.freedesktop.org/drm/drm-misc
F: drivers/gpu/drm/arm/display/include/
F: drivers/gpu/drm/arm/display/komeda/
F: Documentation/devicetree/bindings/display/arm,komeda.txt
S: Supported
-T: git git://linux-arm.org/linux-ld.git for-upstream/mali-dp
+T: git git://anongit.freedesktop.org/drm/drm-misc
F: drivers/gpu/drm/arm/
F: Documentation/devicetree/bindings/display/arm,malidp.txt
F: Documentation/gpu/afbc.rst
ARM MFM AND FLOPPY DRIVERS
S: Maintained
-F: arch/arm/lib/floppydma.S
+F: arch/arm/mach-rpc/floppydma.S
F: arch/arm/include/asm/floppy.h
ARM PMU PROFILING AND DEBUGGING
S: Maintained
-F: drivers/iommu/arm-smmu.c
-F: drivers/iommu/arm-smmu-v3.c
+F: drivers/iommu/arm-smmu*
F: drivers/iommu/io-pgtable-arm.c
F: drivers/iommu/io-pgtable-arm-v7s.c
F: drivers/soc/actions/
F: include/dt-bindings/power/owl-*
F: include/linux/soc/actions/
-F: Documentation/devicetree/bindings/arm/actions.txt
+F: Documentation/devicetree/bindings/arm/actions.yaml
F: Documentation/devicetree/bindings/clock/actions,owl-cmu.txt
F: Documentation/devicetree/bindings/dma/owl-dma.txt
F: Documentation/devicetree/bindings/i2c/i2c-owl.txt
F: drivers/clk/sunxi/
ARM/Allwinner sunXi SoC support
S: Maintained
F: drivers/soc/sunxi/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git
+Allwinner A10 CSI driver
+T: git git://linuxtv.org/media_tree.git
+F: drivers/media/platform/sunxi/sun4i-csi/
+F: Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
+S: Maintained
+
ARM/Amlogic Meson SoC CLOCK FRAMEWORK
F: drivers/pinctrl/meson/
F: drivers/mmc/host/meson*
F: drivers/soc/amlogic/
+F: drivers/rtc/rtc-meson*
N: meson
ARM/Amlogic Meson SoC Sound Drivers
F: arch/arm/boot/dts/artpec6*
F: drivers/clk/axis
F: drivers/crypto/axis
+F: drivers/mmc/host/usdhi6rol0.c
F: drivers/pinctrl/pinctrl-artpec*
F: Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
S: Maintained
F: drivers/hwtracing/coresight/*
-F: Documentation/trace/coresight.txt
-F: Documentation/trace/coresight-cpu-debug.txt
+F: Documentation/trace/coresight.rst
+F: Documentation/trace/coresight-cpu-debug.rst
F: Documentation/devicetree/bindings/arm/coresight.txt
F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
F: Documentation/ABI/testing/sysfs-bus-coresight-devices-*
N: [^a-z]sirf
X: drivers/gnss
+ARM/CZ.NIC TURRIS MOX SUPPORT
+W: http://mox.turris.cz
+S: Maintained
+F: Documentation/ABI/testing/debugfs-moxtet
+F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
+F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
+F: Documentation/devicetree/bindings/bus/moxtet.txt
+F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
+F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
+F: include/linux/moxtet.h
+F: drivers/bus/moxtet.c
+F: drivers/firmware/turris-mox-rwtm.c
+F: drivers/gpio/gpio-moxtet.c
+
ARM/EBSA110 MACHINE SUPPORT
S: Maintained
F: arch/arm/mach-pxa/colibri-pxa270-income.c
-ARM/INTEL IOP13XX ARM ARCHITECTURE
-S: Maintained
-
ARM/INTEL IOP32X ARM ARCHITECTURE
S: Maintained
-ARM/INTEL IOP33X ARM ARCHITECTURE
-S: Orphan
-
ARM/INTEL IQ81342EX MACHINE SUPPORT
F: arch/arm/plat-orion/
F: arch/arm/boot/dts/dove*
F: arch/arm/boot/dts/orion5x*
+T: git git://git.infradead.org/linux-mvebu.git
ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
F: drivers/irqchip/irq-mvebu-*
F: drivers/pinctrl/mvebu/
F: drivers/rtc/rtc-armada38x.c
+T: git git://git.infradead.org/linux-mvebu.git
ARM/Mediatek RTC DRIVER
F: drivers/phy/mediatek/
F: Documentation/devicetree/bindings/phy/phy-mtk-*
-ARM/MICREL KS8695 ARCHITECTURE
-F: arch/arm/mach-ks8695/
-S: Odd Fixes
-
ARM/Microchip (AT91) SoC support
F: arch/arm/mach-nomadik/
F: arch/arm/mach-u300/
F: arch/arm/mach-ux500/
+F: drivers/soc/ux500/
F: arch/arm/boot/dts/ste-*
F: drivers/clk/clk-nomadik.c
F: drivers/clk/clk-u300.c
F: Documentation/devicetree/bindings/*/*npcm*
F: Documentation/devicetree/bindings/*/*/*npcm*
-ARM/NUVOTON W90X900 ARM ARCHITECTURE
-W: http://www.mcuos.com
-S: Maintained
-F: arch/arm/mach-w90x900/
-F: drivers/input/keyboard/w90p910_keypad.c
-F: drivers/input/touchscreen/w90p910_ts.c
-F: drivers/watchdog/nuc900_wdt.c
-F: drivers/net/ethernet/nuvoton/w90p910_ether.c
-F: drivers/mtd/nand/raw/nuc900_nand.c
-F: drivers/rtc/rtc-nuc900.c
-F: drivers/spi/spi-nuc900.c
-F: drivers/usb/host/ehci-w90x900.c
-F: drivers/video/fbdev/nuc900fb.c
-
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
W: http://wiki.openmoko.org/wiki/Neo_FreeRunner
ARM/QUALCOMM SUPPORT
S: Maintained
F: Documentation/devicetree/bindings/soc/qcom/
F: drivers/i2c/busses/i2c-qcom-geni.c
F: drivers/mfd/ssbi.c
F: drivers/mmc/host/mmci_qcom*
-F: drivers/mmc/host/sdhci_msm.c
+F: drivers/mmc/host/sdhci-msm.c
F: drivers/pci/controller/dwc/pcie-qcom.c
F: drivers/phy/qualcomm/
F: drivers/power/*/msm*
F: drivers/clocksource/timer-rda.c
F: drivers/irqchip/irq-rda-intc.c
F: drivers/tty/serial/rda-uart.c
-F: Documentation/devicetree/bindings/arm/rda.txt
+F: Documentation/devicetree/bindings/arm/rda.yaml
F: Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
F: Documentation/devicetree/bindings/serial/rda,8810pl-uart.txt
F: Documentation/devicetree/bindings/timer/rda,8810pl-timer.txt
S: Maintained
F: arch/arm64/boot/dts/realtek/
-F: Documentation/devicetree/bindings/arm/realtek.txt
+F: Documentation/devicetree/bindings/arm/realtek.yaml
ARM/RENESAS ARM64 ARCHITECTURE
Q: http://patchwork.kernel.org/project/linux-renesas-soc/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
S: Supported
F: arch/arm64/boot/dts/renesas/
F: Documentation/devicetree/bindings/arm/renesas.yaml
F: drivers/*/*/*s3c24*
F: drivers/*/*s3c64xx*
F: drivers/*/*s5pv210*
-F: drivers/memory/samsung/*
-F: drivers/soc/samsung/*
-F: Documentation/arm/Samsung/
+F: drivers/memory/samsung/
+F: drivers/soc/samsung/
+F: include/linux/soc/samsung/
+F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
F: Documentation/devicetree/bindings/sram/samsung-sram.txt
F: Documentation/devicetree/bindings/power/pd-samsung.txt
F: drivers/media/platform/s5p-mfc/
ARM/SHMOBILE ARM ARCHITECTURE
Q: http://patchwork.kernel.org/project/linux-renesas-soc/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
S: Supported
F: arch/arm/boot/dts/emev2*
F: arch/arm/boot/dts/gr-peach*
ARM/SPREADTRUM SoC SUPPORT
-M: Baolin Wang <baolin.wang@linaro.org>
S: Maintained
F: arch/arm64/boot/dts/sprd
N: sprd
+N: sc27xx
+N: sc2731
ARM/STI ARCHITECTURE
F: arch/arm64/
X: arch/arm64/boot/dts/
F: Documentation/arm64/
+F: tools/testing/selftests/arm64/
AS3645A LED FLASH CONTROLLER DRIVER
F: Documentation/hwmon/asc7621.rst
F: drivers/hwmon/asc7621.c
+ASPEED PINCTRL DRIVERS
+S: Maintained
+F: drivers/pinctrl/aspeed/
+F: Documentation/devicetree/bindings/pinctrl/aspeed,*
+
ASPEED VIDEO ENGINE DRIVER
W: http://www.openaoe.org/
S: Supported
-F: Documentation/aoe/
+F: Documentation/admin-guide/aoe/
F: drivers/block/aoe/
ATHEROS 71XX/9XXX GPIO DRIVER
F: include/linux/backlight.h
F: include/linux/pwm_backlight.h
F: Documentation/devicetree/bindings/leds/backlight
+F: Documentation/ABI/stable/sysfs-class-backlight
+F: Documentation/ABI/testing/sysfs-class-backlight
BATMAN ADVANCED
W: https://www.open-mesh.org/
B: https://www.open-mesh.org/projects/batman-adv/issues
S: Maintained
F: block/bfq-*
-F: Documentation/block/bfq-iosched.txt
+F: Documentation/block/bfq-iosched.rst
BFS FILE SYSTEM
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
F: arch/arm64/net/
BPF JIT for MIPS (32-BIT AND 64-BIT)
S: Maintained
F: arch/riscv/net/
BPF JIT for S390
S: Maintained
N: kona
F: arch/arm/mach-bcm/
-BROADCOM BCM2835 ARM ARCHITECTURE
+BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE
T: git git://github.com/anholt/linux
S: Maintained
+N: bcm2711
N: bcm2835
F: drivers/staging/vc04_services
F: drivers/usb/gadget/udc/bcm63xx_udc.*
BROADCOM BCM7XXX ARM ARCHITECTURE
F: drivers/cpufreq/bmips-cpufreq.c
BROADCOM BMIPS MIPS ARCHITECTURE
F: fs/cachefiles/
CADENCE MIPI-CSI2 BRIDGES
S: Maintained
F: Documentation/devicetree/bindings/media/cdns,*.txt
F: drivers/media/platform/cadence/cdns-csi2*
+CADENCE NAND DRIVER
+S: Maintained
+F: drivers/mtd/nand/raw/cadence-nand-controller.c
+F: Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt
+
CADET FM/AM RADIO RECEIVER DRIVER
F: Documentation/devicetree/bindings/net/can/
F: drivers/net/can/
F: include/linux/can/dev.h
+F: include/linux/can/led.h
+F: include/linux/can/rx-offload.h
F: include/linux/can/platform/
F: include/uapi/linux/can/error.h
F: include/uapi/linux/can/netlink.h
+F: include/uapi/linux/can/vxcan.h
CAN NETWORK LAYER
F: Documentation/networking/can.rst
F: net/can/
F: include/linux/can/core.h
+F: include/linux/can/skb.h
+F: include/net/netns/can.h
F: include/uapi/linux/can.h
F: include/uapi/linux/can/bcm.h
F: include/uapi/linux/can/raw.h
F: include/uapi/linux/can/gw.h
+CAN-J1939 NETWORK LAYER
+S: Maintained
+F: Documentation/networking/j1939.txt
+F: net/can/j1939/
+F: include/uapi/linux/can/j1939.h
+
CAPABILITIES
CAVIUM THUNDERX2 ARM64 SOC
S: Maintained
F: arch/arm64/boot/dts/cavium/thunder2-99xx*
CEPH COMMON CODE (LIBCEPH)
W: http://ceph.com/
F: include/linux/crush/
CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH)
F: scripts/extract-cert.c
CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
-S: Orphan
-F: Documentation/usb/WUSB-Design-overview.txt
-F: Documentation/usb/wusb-cbaf
-F: drivers/usb/host/hwa-hc.c
-F: drivers/usb/host/whci/
-F: drivers/usb/wusbcore/
-F: include/linux/usb/wusb*
+S: Obsolete
+F: drivers/staging/wusbcore/
CFAG12864B LCD DRIVER
F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt
-F: Documentation/hwmon/lochnagar
+F: Documentation/hwmon/lochnagar.rst
CISCO FCOE HBA DRIVER
W: http://linux-cifs.samba.org/
T: git git://git.samba.org/sfrench/cifs-2.6.git
S: Supported
-F: Documentation/filesystems/cifs/
+F: Documentation/admin-guide/cifs/
F: fs/cifs/
COMPACTPCI HOTPLUG CORE
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
F: Documentation/admin-guide/cgroup-v2.rst
-F: Documentation/cgroup-v1/
+F: Documentation/admin-guide/cgroup-v1/
F: include/linux/cgroup*
F: kernel/cgroup/
W: http://oss.sgi.com/projects/cpusets/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
-F: Documentation/cgroup-v1/cpusets.rst
+F: Documentation/admin-guide/cgroup-v1/cpusets.rst
F: include/linux/cpuset.h
F: kernel/cgroup/cpuset.c
F: mm/memcontrol.c
F: mm/swap_cgroup.c
+CONTROL GROUP - BLOCK IO CONTROLLER (BLKIO)
+T: git git://git.kernel.dk/linux-block
+F: Documentation/admin-guide/cgroup-v1/blkio-controller.rst
+F: block/blk-cgroup.c
+F: include/linux/blk-cgroup.h
+F: block/blk-throttle.c
+F: block/blk-iolatency.c
+F: block/bfq-cgroup.c
+
CORETEMP HARDWARE MONITORING DRIVER
F: drivers/cpuidle/cpuidle-exynos.c
F: arch/arm/mach-exynos/pm.c
+CPUIDLE DRIVER - ARM PSCI
+S: Supported
+F: drivers/cpuidle/cpuidle-psci.c
+
CPU IDLE TIME MANAGEMENT FRAMEWORK
F: Documentation/filesystems/cramfs.txt
F: fs/cramfs/
+CREATIVE SB0540
+S: Maintained
+F: drivers/hid/hid-creative-sb0540.c
+
CRYPTO API
F: drivers/misc/cxl/
F: include/misc/cxl*
F: include/uapi/misc/cxl.h
-F: Documentation/powerpc/cxl.txt
+F: Documentation/powerpc/cxl.rst
F: Documentation/ABI/testing/sysfs-class-cxl
CXLFLASH (IBM Coherent Accelerator Processor Interface CAPI Flash) SCSI DRIVER
S: Supported
F: drivers/scsi/cxlflash/
F: include/uapi/scsi/cxlflash_ioctl.h
-F: Documentation/powerpc/cxlflash.txt
+F: Documentation/powerpc/cxlflash.rst
CYBERPRO FB DRIVER
S: Maintained
-F: Documentation/dcdbas.txt
+F: Documentation/driver-api/dcdbas.rst
F: drivers/platform/x86/dcdbas.*
DELL WMI NOTIFICATIONS DRIVER
S: Supported
F: drivers/mtd/nand/raw/denali*
+DESIGNWARE EDMA CORE IP DRIVER
+S: Maintained
+F: drivers/dma/dw-edma/
+F: include/linux/dma/edma.h
+
DESIGNWARE USB2 DRD IP DRIVER
T: git git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
T: quilt http://people.redhat.com/agk/patches/linux/editing/
S: Maintained
-F: Documentation/device-mapper/
+F: Documentation/admin-guide/device-mapper/
F: drivers/md/Makefile
F: drivers/md/Kconfig
F: drivers/md/dm*
W: http://plugable.com/category/projects/udlfb/
F: drivers/video/fbdev/udlfb.c
F: include/video/udlfb.h
-F: Documentation/fb/udlfb.txt
+F: Documentation/fb/udlfb.rst
DISTRIBUTED LOCK MANAGER (DLM)
S: Maintained
F: Documentation/
+F: scripts/documentation-file-ref-check
F: scripts/kernel-doc
+F: scripts/sphinx-pre-install
X: Documentation/ABI/
X: Documentation/firmware-guide/acpi/
X: Documentation/devicetree/
S: Maintained
F: Documentation/translations/it_IT
+DOCUMENTATION SCRIPTS
+S: Maintained
+F: scripts/documentation-file-ref-check
+F: scripts/sphinx-pre-install
+F: Documentation/sphinx/parse-headers.pl
+
DONGWOON DW9714 LENS VOICE COIL DRIVER
S: Maintained
F: drivers/staging/fsl-dpaa2/ethsw
-DPAA2 PTP CLOCK DRIVER
-S: Maintained
-F: drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp*
-F: drivers/net/ethernet/freescale/dpaa2/dprtc*
-
DPT_I2O SCSI RAID DRIVER
S: Supported
F: drivers/block/drbd/
F: lib/lru_cache.c
-F: Documentation/blockdev/drbd/
+F: Documentation/admin-guide/blockdev/
DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
F: drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
F: Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.txt
+DRM DRIVER FOR GRAIN MEDIA GM12U320 PROJECTORS
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/tiny/gm12u320.c
+
DRM DRIVER FOR ILITEK ILI9225 PANELS
+T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/ili9225.c
+F: drivers/gpu/drm/tiny/ili9225.c
F: Documentation/devicetree/bindings/display/ilitek,ili9225.txt
DRM DRIVER FOR HX8357D PANELS
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/hx8357d.c
+F: drivers/gpu/drm/tiny/hx8357d.c
F: Documentation/devicetree/bindings/display/himax,hx8357d.txt
DRM DRIVER FOR INTEL I810 VIDEO CARDS
DRM DRIVER FOR MI0283QT
+T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/mi0283qt.c
+F: drivers/gpu/drm/tiny/mi0283qt.c
F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
DRM DRIVER FOR MSM ADRENO GPU
DRM DRIVER FOR PERVASIVE DISPLAYS REPAPER PANELS
+T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/repaper.c
+F: drivers/gpu/drm/tiny/repaper.c
F: Documentation/devicetree/bindings/display/repaper.txt
DRM DRIVER FOR QEMU'S CIRRUS DEVICE
F: drivers/gpu/drm/qxl/
F: include/uapi/drm/qxl_drm.h
+DRM DRIVER FOR RAYDIUM RM67191 PANELS
+S: Maintained
+F: drivers/gpu/drm/panel/panel-raydium-rm67191.c
+F: Documentation/devicetree/bindings/display/panel/raydium,rm67191.txt
+
DRM DRIVER FOR RAGE 128 VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/r128/
DRM DRIVER FOR ROCKTECH JH057N00900 PANELS
S: Maintained
F: drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
F: Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.txt
DRM DRIVER FOR SITRONIX ST7586 PANELS
+T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/st7586.c
+F: drivers/gpu/drm/tiny/st7586.c
F: Documentation/devicetree/bindings/display/sitronix,st7586.txt
DRM DRIVER FOR SITRONIX ST7735R PANELS
+T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
-F: drivers/gpu/drm/tinydrm/st7735r.c
+F: drivers/gpu/drm/tiny/st7735r.c
F: Documentation/devicetree/bindings/display/sitronix,st7735r.txt
+DRM DRIVER FOR ST-ERICSSON MCDE
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/mcde/
+F: Documentation/devicetree/bindings/display/ste,mcde.txt
+
DRM DRIVER FOR TDFX VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/tdfx/
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/panel/panel-tpo-tpg110.c
-F: Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt
+F: Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml
DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
DRM DRIVERS AND MISC GPU PATCHES
W: https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
S: Maintained
F: include/linux/vga*
DRM DRIVERS FOR ALLWINNER A10
S: Supported
F: drivers/gpu/drm/sun4i/
W: http://linux-meson.com/
S: Supported
F: drivers/gpu/drm/meson/
-F: Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
-F: Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.txt
+F: Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
+F: Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
F: Documentation/gpu/meson.rst
T: git git://anongit.freedesktop.org/drm/drm-misc
DRM DRIVERS FOR ATMEL HLCDC
S: Supported
DRM DRIVERS FOR BRIDGE CHIPS
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
F: drivers/gpu/drm/bridge/
DRM PANEL DRIVERS
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: include/drm/drm_panel.h
F: Documentation/devicetree/bindings/display/panel/
-DRM TINYDRM DRIVERS
-W: https://github.com/notro/tinydrm/wiki/Development
-T: git git://anongit.freedesktop.org/drm/drm-misc
-S: Maintained
-F: drivers/gpu/drm/tinydrm/
-F: include/drm/tinydrm/
-
DRM DRIVERS FOR XEN
T: git git://anongit.freedesktop.org/drm/drm-misc
DRM TTM SUBSYSTEM
T: git git://people.freedesktop.org/~agd5f/linux
S: Maintained
S: Maintained
F: drivers/media/radio/dsbr100.c
-DSCC4 DRIVER
-S: Maintained
-F: drivers/net/wan/dscc4.c
-
DT3155 MEDIA DRIVER
DYNAMIC INTERRUPT MODERATION
S: Maintained
-F: include/linux/net_dim.h
+F: include/linux/dim.h
+F: lib/dim/
DZ DECSTATION DZ11 SERIAL DRIVER
S: Maintained
F: drivers/edac/amd64_edac*
+EDAC-ARMADA
+S: Maintained
+F: drivers/edac/armada_xp_*
+
EDAC-AST2500
S: Supported
F: drivers/edac/aspeed_edac.c
F: Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
+EDAC-BLUEFIELD
+S: Supported
+F: drivers/edac/bluefield_edac.c
+
EDAC-CALXEDA
EDAC-CORE
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git edac-for-next
S: Supported
F: Documentation/admin-guide/ras.rst
F: Documentation/driver-api/edac.rst
F: drivers/video/fbdev/s1d13xxxfb.c
F: include/video/s1d13xxxfb.h
+EROFS FILE SYSTEM
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
+F: Documentation/filesystems/erofs.txt
+F: fs/erofs/
+F: include/trace/events/erofs.h
+
ERRSEQ ERROR TRACKING INFRASTRUCTURE
S: Maintained
S: Maintained
-F: Documentation/ABI/testing/sysfs-bus-mdio
+F: Documentation/ABI/testing/sysfs-class-net-phydev
+F: Documentation/devicetree/bindings/net/ethernet-phy.yaml
F: Documentation/devicetree/bindings/net/mdio*
F: Documentation/networking/phy.rst
F: drivers/net/phy/
F: include/uapi/linux/mdio.h
F: include/uapi/linux/mii.h
+EXFAT FILE SYSTEM
+S: Maintained
+F: drivers/staging/exfat/
+
EXT2 FILE SYSTEM
T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
S: Maintained
-F: Documentation/efi-stub.txt
+F: Documentation/admin-guide/efi-stub.rst
F: arch/*/kernel/efi.c
F: arch/x86/boot/compressed/eboot.[ch]
F: arch/*/include/asm/efi.h
F: drivers/hwmon/f75375s.c
F: include/linux/f75375s.h
-FIREWIRE AUDIO DRIVERS
+FIREWIRE AUDIO DRIVERS and IEC 61883-1/6 PACKET STREAMING ENGINE
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/firewire/
+F: include/uapi/sound/firewire.h
FIREWIRE MEDIA DRIVERS (firedtv)
S: Maintained
F: drivers/block/rsxx/
+FLEXTIMER FTM-QUADDEC DRIVER
+S: Maintained
+F: Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec
+F: Documentation/devicetree/bindings/counter/ftm-quaddec.txt
+F: drivers/counter/ftm-quaddec.c
+
FLOPPY DRIVER
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/floppy.git
-S: Odd fixes
+S: Odd Fixes
F: drivers/block/floppy.c
-FMC SUBSYSTEM
-W: http://www.ohwr.org/projects/fmc-bus
-S: Supported
-F: drivers/fmc/
-F: include/linux/fmc*.h
-F: include/linux/ipmi-fru.h
-K: fmc_d.*register
-
FPGA MANAGER FRAMEWORK
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/atull/linux-fpga.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga.git
Q: http://patchwork.kernel.org/project/linux-fpga/list/
F: Documentation/fpga/
F: Documentation/driver-api/fpga/
S: Maintained
-F: Documentation/fpga/dfl.txt
+F: Documentation/fpga/dfl.rst
F: include/uapi/linux/fpga-dfl.h
F: drivers/fpga/dfl*
-T: git git://github.com/bzolnier/linux.git
+T: git git://anongit.freedesktop.org/drm/drm-misc
Q: http://patchwork.kernel.org/project/linux-fbdev/list/
S: Maintained
F: Documentation/fb/
S: Maintained
F: drivers/perf/fsl_imx8_ddr_perf.c
+F: Documentation/admin-guide/perf/imx-ddr.rst
F: Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
+FREESCALE IMX I2C DRIVER
+S: Maintained
+F: drivers/i2c/busses/i2c-imx.c
+F: Documentation/devicetree/bindings/i2c/i2c-imx.txt
+
FREESCALE IMX LPI2C DRIVER
S: Maintained
+F: drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp*
+F: drivers/net/ethernet/freescale/dpaa2/dprtc*
F: drivers/net/ethernet/freescale/enetc/enetc_ptp.c
F: drivers/ptp/ptp_qoriq.c
F: drivers/ptp/ptp_qoriq_debugfs.c
S: Maintained
+F: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.txt
F: Documentation/devicetree/bindings/soc/fsl/
F: drivers/soc/fsl/
F: include/linux/fsl/
S: Supported
-F: Documentation/power/freezing-of-tasks.txt
+F: Documentation/power/freezing-of-tasks.rst
F: include/linux/freezer.h
F: kernel/freezer.c
S: Supported
F: fs/crypto/
F: include/linux/fscrypt*.h
+F: include/uapi/linux/fscrypt.h
F: Documentation/filesystems/fscrypt.rst
+FSI SUBSYSTEM
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi.git
+Q: http://patchwork.ozlabs.org/project/linux-fsi/list/
+S: Supported
+F: drivers/fsi/
+F: include/linux/fsi*.h
+F: include/trace/events/fsi*.h
+
FSI-ATTACHED I2C DRIVER
F: fs/notify/
F: include/linux/fsnotify*.h
+FSVERITY: READ-ONLY FILE-BASED AUTHENTICITY PROTECTION
+Q: https://patchwork.kernel.org/project/linux-fscrypt/list/
+T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git fsverity
+S: Supported
+F: fs/verity/
+F: include/linux/fsverity.h
+F: include/uapi/linux/fsverity.h
+F: Documentation/filesystems/fsverity.rst
+
FUJITSU LAPTOP EXTRAS
F: scripts/gcc-plugins/
F: scripts/gcc-plugin.sh
F: scripts/Makefile.gcc-plugins
-F: Documentation/gcc-plugins.txt
+F: Documentation/core-api/gcc-plugins.rst
GASKET DRIVER FRAMEWORK
S: Maintained
F: drivers/media/radio/radio-gemtek*
+GENERIC ARCHITECTURE TOPOLOGY
+S: Maintained
+F: drivers/base/arch_topology.c
+F: include/linux/arch_topology.h
+
GENERIC GPIO I2C DRIVER
S: Supported
S: Supported
F: drivers/i2c/muxes/i2c-mux-gpio.c
F: include/linux/platform_data/i2c-mux-gpio.h
-F: Documentation/i2c/muxes/i2c-mux-gpio
+F: Documentation/i2c/muxes/i2c-mux-gpio.rst
GENERIC HDLC (WAN) DRIVERS
F: fs/gfs2/
F: include/uapi/linux/gfs2_ondisk.h
-GIGASET ISDN DRIVERS
-W: http://gigaset307x.sourceforge.net/
-S: Odd Fixes
-F: Documentation/isdn/README.gigaset
-F: drivers/isdn/gigaset/
-F: include/uapi/linux/gigaset_dev.h
-
GNSS SUBSYSTEM
T: git git://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss.git
S: Maintained
F: drivers/input/touchscreen/goodix.c
+GOOGLE ETHERNET DRIVERS
+S: Supported
+F: Documentation/networking/device_drivers/google/gve.rst
+F: drivers/net/ethernet/google
+
GPD POCKET FAN DRIVER
S: Maintained
F: Documentation/devicetree/bindings/gpio/
F: Documentation/driver-api/gpio/
-F: Documentation/gpio/
+F: Documentation/admin-guide/gpio/
F: Documentation/ABI/testing/gpio-cdev
F: Documentation/ABI/obsolete/sysfs-gpio
F: drivers/gpio/
S: Maintained
F: drivers/staging/greybus/
+F: drivers/greybus/
+F: include/linux/greybus.h
+F: include/linux/greybus/
GREYBUS UART PROTOCOLS DRIVERS
S: Odd fixes
F: Documentation/devicetree/bindings/rng/
-F: Documentation/hw_random.txt
+F: Documentation/admin-guide/hw_random.rst
F: drivers/char/hw_random/
F: include/linux/hw_random.h
HEWLETT PACKARD ENTERPRISE ILO NMI WATCHDOG DRIVER
S: Supported
-F: Documentation/watchdog/hpwdt.txt
+F: Documentation/watchdog/hpwdt.rst
F: drivers/watchdog/hpwdt.c
HEWLETT-PACKARD SMART ARRAY RAID DRIVER (hpsa)
W: http://www.hisilicon.com
S: Supported
F: drivers/perf/hisilicon
-F: Documentation/perf/hisi-pmu.txt
+F: Documentation/admin-guide/perf/hisi-pmu.rst
HISILICON ROCE DRIVER
F: drivers/scsi/hisi_sas/
F: Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+HISILICON QM AND ZIP Controller DRIVER
+S: Maintained
+F: drivers/crypto/hisilicon/qm.c
+F: drivers/crypto/hisilicon/qm.h
+F: drivers/crypto/hisilicon/sgl.c
+F: drivers/crypto/hisilicon/sgl.h
+F: drivers/crypto/hisilicon/zip/
+F: Documentation/ABI/testing/debugfs-hisi-zip
+
HMM - Heterogeneous Memory Management
HPET: High Precision Event Timers driver
S: Maintained
-F: Documentation/timers/hpet.txt
+F: Documentation/timers/hpet.rst
F: drivers/char/hpet.c
F: include/linux/hpet.h
F: include/uapi/linux/hpet.h
F: drivers/hv/
F: drivers/input/serio/hyperv-keyboard.c
F: drivers/pci/controller/pci-hyperv.c
+F: drivers/pci/controller/pci-hyperv-intf.c
F: drivers/net/hyperv/
F: drivers/scsi/storvsc_drv.c
F: drivers/uio/uio_hv_generic.c
F: drivers/video/fbdev/hyperv_fb.c
-F: drivers/iommu/hyperv_iommu.c
+F: drivers/iommu/hyperv-iommu.c
F: net/vmw_vsock/hyperv_transport.c
F: include/clocksource/hyperv_timer.h
F: include/linux/hyperv.h
F: include/uapi/linux/hyperv.h
+F: include/asm-generic/mshyperv.h
F: tools/hv/
F: Documentation/ABI/stable/sysfs-bus-vmbus
+HYPERBUS SUPPORT
+S: Supported
+F: drivers/mtd/hyperbus/
+F: include/linux/mtd/hyperbus.h
+F: Documentation/devicetree/bindings/mtd/cypress,hyperflash.txt
+F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
+
HYPERVISOR VIRTUAL CONSOLE DRIVER
S: Odd Fixes
S: Maintained
-F: Documentation/i2c/busses/i2c-nvidia-gpu
+F: Documentation/i2c/busses/i2c-nvidia-gpu.rst
F: drivers/i2c/busses/i2c-nvidia-gpu.c
I2C MUXES
S: Maintained
-F: Documentation/i2c/i2c-topology
+F: Documentation/i2c/i2c-topology.rst
F: Documentation/i2c/muxes/
F: Documentation/devicetree/bindings/i2c/i2c-mux*
F: Documentation/devicetree/bindings/i2c/i2c-arb*
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
+F: Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
F: drivers/i2c/busses/i2c-mv64xxx.c
I2C OVER PARALLEL PORT
S: Maintained
-F: Documentation/i2c/busses/i2c-parport
-F: Documentation/i2c/busses/i2c-parport-light
+F: Documentation/i2c/busses/i2c-parport.rst
+F: Documentation/i2c/busses/i2c-parport-light.rst
F: drivers/i2c/busses/i2c-parport.c
F: drivers/i2c/busses/i2c-parport-light.c
S: Maintained
-F: Documentation/i2c/busses/i2c-taos-evm
+F: Documentation/i2c/busses/i2c-taos-evm.rst
F: drivers/i2c/busses/i2c-taos-evm.c
I2C-TINY-USB DRIVER
S: Maintained
-F: Documentation/i2c/busses/i2c-ali1535
-F: Documentation/i2c/busses/i2c-ali1563
-F: Documentation/i2c/busses/i2c-ali15x3
-F: Documentation/i2c/busses/i2c-amd756
-F: Documentation/i2c/busses/i2c-amd8111
-F: Documentation/i2c/busses/i2c-i801
-F: Documentation/i2c/busses/i2c-nforce2
-F: Documentation/i2c/busses/i2c-piix4
-F: Documentation/i2c/busses/i2c-sis5595
-F: Documentation/i2c/busses/i2c-sis630
-F: Documentation/i2c/busses/i2c-sis96x
-F: Documentation/i2c/busses/i2c-via
-F: Documentation/i2c/busses/i2c-viapro
+F: Documentation/i2c/busses/i2c-ali1535.rst
+F: Documentation/i2c/busses/i2c-ali1563.rst
+F: Documentation/i2c/busses/i2c-ali15x3.rst
+F: Documentation/i2c/busses/i2c-amd756.rst
+F: Documentation/i2c/busses/i2c-amd8111.rst
+F: Documentation/i2c/busses/i2c-i801.rst
+F: Documentation/i2c/busses/i2c-nforce2.rst
+F: Documentation/i2c/busses/i2c-piix4.rst
+F: Documentation/i2c/busses/i2c-sis5595.rst
+F: Documentation/i2c/busses/i2c-sis630.rst
+F: Documentation/i2c/busses/i2c-sis96x.rst
+F: Documentation/i2c/busses/i2c-via.rst
+F: Documentation/i2c/busses/i2c-viapro.rst
F: drivers/i2c/busses/i2c-ali1535.c
F: drivers/i2c/busses/i2c-ali1563.c
F: drivers/i2c/busses/i2c-ali15x3.c
F: drivers/i2c/busses/i2c-ismt.c
-F: Documentation/i2c/busses/i2c-ismt
+F: Documentation/i2c/busses/i2c-ismt.rst
I2C/SMBUS STUB DRIVER
F: drivers/crypto/nx/nx-sha*
F: drivers/crypto/nx/nx.*
F: drivers/crypto/nx/nx_csbcpb.h
-F: drivers/crypto/nx/nx_debugfs.h
+F: drivers/crypto/nx/nx_debugfs.c
IBM Power Linux RAID adapter
F: drivers/mfd/lpc_ich.c
F: drivers/gpio/gpio-ich.c
+ICY I2C DRIVER
+S: Maintained
+F: drivers/i2c/busses/i2c-icy.c
+
IDE SUBSYSTEM
S: Maintained
-F: Documentation/cdrom/ide-cd
+F: Documentation/cdrom/ide-cd.rst
F: drivers/ide/ide-cd*
IDEAPAD LAPTOP EXTRAS DRIVER
F: drivers/usb/atm/ueagle-atm.c
IMGTEC ASCII LCD DRIVER
S: Maintained
F: Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
F: drivers/auxdisplay/img-ascii-lcd.c
S: Maintained
F: drivers/ipack/
+INFINEON DPS310 Driver
+F: drivers/iio/pressure/dps310.c
+S: Maintained
+
INFINIBAND SUBSYSTEM
S: Maintained
F: drivers/mtd/nand/raw/ingenic/
+INGENIC JZ47xx SoCs
+S: Maintained
+F: arch/mips/boot/dts/ingenic/
+F: arch/mips/include/asm/mach-jz4740/
+F: arch/mips/jz4740/
+F: drivers/clk/ingenic/
+F: drivers/dma/dma-jz4780.c
+F: drivers/gpu/drm/ingenic/
+F: drivers/i2c/busses/i2c-jz4780.c
+F: drivers/iio/adc/ingenic-adc.c
+F: drivers/irqchip/irq-ingenic.c
+F: drivers/memory/jz4780-nemc.c
+F: drivers/mmc/host/jz4740_mmc.c
+F: drivers/mtd/nand/raw/ingenic/
+F: drivers/pinctrl/pinctrl-ingenic.c
+F: drivers/power/supply/ingenic-battery.c
+F: drivers/pwm/pwm-jz4740.c
+F: drivers/rtc/rtc-jz4740.c
+F: drivers/tty/serial/8250/8250_ingenic.c
+F: drivers/usb/musb/jz4740.c
+F: drivers/watchdog/jz4740_wdt.c
+F: include/dt-bindings/iio/adc/ingenic,adc.h
+F: include/linux/mfd/ingenic-tcu.h
+F: sound/soc/jz4740/
+F: sound/soc/codecs/jz47*
+
INOTIFY
F: drivers/video/fbdev/i810/
INTEL ASoC DRIVERS
S: Supported
F: drivers/scsi/isci/
+INTEL CPU family model numbers
+S: Supported
+F: arch/x86/include/asm/intel-family.h
+
INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
S: Maintained
-F: Documentation/fb/intelfb.txt
+F: Documentation/fb/intelfb.rst
F: drivers/video/fbdev/intelfb/
INTEL GPIO DRIVERS
INTEL IOMMU (VT-d)
-T: git git://git.infradead.org/iommu-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
S: Supported
-F: drivers/iommu/intel-iommu.c
+F: drivers/iommu/dmar.c
+F: drivers/iommu/intel*.[ch]
F: include/linux/intel-iommu.h
+F: include/linux/intel-svm.h
INTEL IOP-ADMA DMA DRIVER
F: include/linux/mei_cl_bus.h
F: drivers/misc/mei/*
F: drivers/watchdog/mei_wdt.c
-F: Documentation/misc-devices/mei/*
+F: Documentation/driver-api/mei/*
F: samples/mei/*
INTEL MENLOW THERMAL DRIVER
F: drivers/gpio/gpio-*cove.c
F: drivers/gpio/gpio-msic.c
-INTEL MULTIFUNCTION PMIC DEVICE DRIVERS
+INTEL PMIC MULTIFUNCTION DEVICE DRIVERS
S: Maintained
F: drivers/mfd/intel_msic.c
F: drivers/infiniband/hw/i40iw/
F: include/uapi/rdma/i40iw-abi.h
+INTEL SPEED SELECT TECHNOLOGY
+S: Maintained
+F: drivers/platform/x86/intel_speed_select_if/
+F: tools/power/x86/intel-speed-select/
+F: include/uapi/linux/isst_if.h
+
+INTEL STRATIX10 FIRMWARE DRIVERS
+S: Maintained
+F: drivers/firmware/stratix10-rsu.c
+F: drivers/firmware/stratix10-svc.c
+F: include/linux/firmware/intel/stratix10-smc.h
+F: include/linux/firmware/intel/stratix10-svc-client.h
+F: Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
+F: Documentation/devicetree/bindings/firmware/intel,stratix10-svc.txt
+
INTEL TELEMETRY DRIVER
S: Supported
W: http://linuxwimax.org
-F: Documentation/wimax/README.i2400m
+F: Documentation/admin-guide/wimax/i2400m.rst
F: drivers/net/wimax/i2400m/
F: include/uapi/linux/wimax/i2400m.h
S: Supported
F: Documentation/trace/intel_th.rst
F: drivers/hwtracing/intel_th/
+F: include/linux/intel_th.h
INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
W: http://tboot.sourceforge.net
T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
S: Supported
-F: Documentation/intel_txt.txt
+F: Documentation/x86/intel_txt.rst
F: include/linux/tboot.h
F: arch/x86/kernel/tboot.c
-INTEL-MID GPIO DRIVER
-S: Maintained
-F: drivers/gpio/gpio-intel-mid.c
-
INTERCONNECT API
S: Maintained
-F: Documentation/interconnect/
+F: Documentation/driver-api/interconnect.rst
F: Documentation/devicetree/bindings/interconnect/
F: drivers/interconnect/
F: include/dt-bindings/interconnect/
S: Maintained
F: drivers/net/ethernet/sgi/ioc3-eth.c
-IOC3 SERIAL DRIVER
-S: Maintained
-F: drivers/tty/serial/ioc3_serial.c
-
IOMAP FILESYSTEM LIBRARY
T: git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git
S: Supported
-F: fs/iomap.c
+F: fs/iomap/
F: include/linux/iomap.h
IOMMU DRIVERS
IO_URING
T: git git://git.kernel.dk/linux-block
T: git git://git.kernel.dk/liburing
S: Maintained
F: fs/io_uring.c
+F: fs/io-wq.c
+F: fs/io-wq.h
F: include/uapi/linux/io_uring.h
-IP MASQUERADING
-S: Maintained
-F: net/ipv4/netfilter/ipt_MASQUERADE.c
-
IPMI SUBSYSTEM
F: include/uapi/linux/ipx.h
IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
F: Documentation/IRQ-domain.txt
IRQCHIP DRIVERS
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
ISA
S: Maintained
-F: Documentation/isa.txt
+F: Documentation/driver-api/isa.rst
F: drivers/base/isa.c
F: include/linux/isa.h
ISAPNP
S: Maintained
-F: Documentation/isapnp.txt
+F: Documentation/driver-api/isapnp.rst
F: drivers/pnp/isapnp/
F: include/linux/isapnp.h
W: http://www.linux-iscsi.org
F: drivers/infiniband/ulp/isert
-ISDN SUBSYSTEM
+ISDN/mISDN SUBSYSTEM
W: http://www.isdn4linux.de
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git
S: Maintained
+F: drivers/isdn/mISDN
+F: drivers/isdn/hardware
+
+ISDN/CAPI SUBSYSTEM
+W: http://www.isdn4linux.de
+S: Odd Fixes
F: Documentation/isdn/
-F: drivers/isdn/
-F: include/linux/isdn.h
+F: drivers/isdn/capi/
+F: drivers/staging/isdn/
+F: net/bluetooth/cmtp/
F: include/linux/isdn/
-F: include/uapi/linux/isdn.h
F: include/uapi/linux/isdn/
IT87 HARDWARE MONITORING DRIVER
W: http://jfs.sourceforge.net/
T: git git://github.com/kleikamp/linux-shaggy.git
S: Maintained
-F: Documentation/filesystems/jfs.txt
+F: Documentation/admin-guide/jfs.rst
F: fs/jfs/
JME NETWORK DRIVER
W: http://lse.sourceforge.net/kdump/
S: Maintained
-F: Documentation/kdump/
+F: Documentation/admin-guide/kdump/
KEENE FM RADIO TRANSMITTER DRIVER
F: tools/testing/selftests/
F: Documentation/dev-tools/kselftest*
+KERNEL UNIT TESTING FRAMEWORK (KUnit)
+W: https://google.github.io/kunit-docs/third_party/kernel/docs/
+S: Maintained
+F: Documentation/dev-tools/kunit/
+F: include/kunit/
+F: lib/kunit/
+F: tools/testing/kunit/
+
KERNEL USERMODE HELPER
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
S: Supported
-F: Documentation/virtual/kvm/
+F: Documentation/virt/kvm/
F: include/trace/events/kvm.h
F: include/uapi/asm-generic/kvm*
F: include/uapi/linux/kvm*
F: tools/kvm/
F: tools/testing/selftests/kvm/
-KERNEL VIRTUAL MACHINE FOR AMD-V (KVM/amd)
-W: http://www.linux-kvm.org/
-S: Maintained
-F: arch/x86/include/asm/svm.h
-F: arch/x86/kvm/svm.c
-
KERNEL VIRTUAL MACHINE FOR ARM/ARM64 (KVM/arm, KVM/arm64)
-R: Julien Thierry <julien.thierry@arm.com>
+R: Julien Thierry <julien.thierry.kdev@gmail.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
-L: linux-s390@vger.kernel.org
+L: kvm@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
S: Supported
F: arch/s390/include/asm/kvm*
F: arch/s390/kvm/
F: arch/s390/mm/gmap.c
+F: tools/testing/selftests/kvm/s390x/
+F: tools/testing/selftests/kvm/*/s390x/
KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
F: arch/x86/kvm/
F: arch/x86/kvm/*/
F: arch/x86/include/uapi/asm/kvm*
+F: arch/x86/include/uapi/asm/vmx.h
+F: arch/x86/include/uapi/asm/svm.h
F: arch/x86/include/asm/kvm*
F: arch/x86/include/asm/pvclock-abi.h
+F: arch/x86/include/asm/svm.h
+F: arch/x86/include/asm/vmx.h
F: arch/x86/kernel/kvm.c
F: arch/x86/kernel/kvmclock.c
KEYS-TRUSTED
F: Documentation/security/keys/trusted-encrypted.rst
F: include/keys/trusted-type.h
F: security/keys/trusted.c
-F: security/keys/trusted.h
+F: include/keys/trusted.h
KEYS/KEYRINGS:
S: Maintained
F: Documentation/security/keys/core.rst
KGDB / KDB /debug_core
W: http://kgdb.wiki.kernel.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git
KS0108 LCD CONTROLLER DRIVER
S: Maintained
-F: Documentation/auxdisplay/ks0108
+F: Documentation/admin-guide/auxdisplay/ks0108.rst
F: drivers/auxdisplay/ks0108.c
F: include/linux/ks0108.h
L3MDEV
-M: David Ahern <dsa@cumulusnetworks.com>
S: Maintained
F: net/l3mdev
T: git git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git
S: Maintained
F: Documentation/devicetree/bindings/leds/
F: drivers/leds/
LEGACY EEPROM DRIVER
S: Maintained
-F: Documentation/misc-devices/eeprom
+F: Documentation/misc-devices/eeprom.rst
F: drivers/misc/eeprom/eeprom.c
LEGO MINDSTORMS EV3
S: Maintained
F: Documentation/ABI/testing/sysfs-platform-lg-laptop
-F: Documentation/laptops/lg-laptop.rst
+F: Documentation/admin-guide/laptops/lg-laptop.rst
F: drivers/platform/x86/lg-laptop.c
LG2160 MEDIA DRIVER
F: include/linux/libnvdimm.h
F: include/uapi/linux/ndctl.h
+LICENSES and SPDX stuff
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx.git
+F: COPYING
+F: Documentation/process/license-rules.rst
+F: LICENSES/
+F: scripts/spdxcheck-test.sh
+F: scripts/spdxcheck.py
+
LIGHTNVM PLATFORM SUPPORT
W: http://github/OpenChannelSSD
LINUX KERNEL MEMORY CONSISTENCY MODEL (LKMM)
-M: Andrea Parri <andrea.parri@amarulasolutions.com>
+M: Andrea Parri <parri.andrea@gmail.com>
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
LIS3LV02D ACCELEROMETER DRIVER
S: Maintained
-F: Documentation/misc-devices/lis3lv02d
+F: Documentation/misc-devices/lis3lv02d.rst
F: drivers/misc/lis3lv02d/
F: drivers/platform/x86/hp_accel.c
+LIST KUNIT TEST
+S: Maintained
+F: lib/list-test.c
+
LIVE PATCHING
W: http://www.linux-ntfs.org/content/view/19/37/
S: Maintained
-F: Documentation/ldm.txt
+F: Documentation/admin-guide/ldm.rst
F: block/partitions/ldm.*
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
F: include/net/mac80211.h
F: net/mac80211/
F: drivers/net/wireless/mac80211_hwsim.[ch]
-F: Documentation/networking/mac80211_hwsim/README
+F: Documentation/networking/mac80211_hwsim/mac80211_hwsim.rst
MAILBOX API
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
-F: Documentation/devicetree/bindings/media/rcar_vin.txt
+F: Documentation/devicetree/bindings/media/renesas,csi2.txt
+F: Documentation/devicetree/bindings/media/renesas,vin.txt
F: drivers/media/platform/rcar-vin/
MEDIA DRIVERS FOR RENESAS - VSP1
-M: Nelson Chang <nelson.chang@mediatek.com>
+M: Mark Lee <Mark-MC.Lee@mediatek.com>
S: Maintained
F: drivers/net/ethernet/mediatek/
S: Maintained
F: drivers/net/wireless/mediatek/mt7601u/
+MEDIATEK MT7621/28/88 I2C DRIVER
+S: Maintained
+F: drivers/i2c/busses/i2c-mt7621.c
+F: Documentation/devicetree/bindings/i2c/i2c-mt7621.txt
+
MEDIATEK NAND CONTROLLER DRIVER
S: Supported
F: drivers/net/ethernet/mellanox/mlx5/core/
F: include/linux/mlx5/
+F: Documentation/networking/device_drivers/mellanox/
MELLANOX MLX5 IB driver
S: Supported
F: drivers/i2c/busses/i2c-mlxcpld.c
F: drivers/i2c/muxes/i2c-mux-mlxcpld.c
-F: Documentation/i2c/busses/i2c-mlxcpld
+F: Documentation/i2c/busses/i2c-mlxcpld.rst
MELLANOX MLXCPLD LED DRIVER
MEMBARRIER SUPPORT
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
S: Supported
F: kernel/sched/membarrier.c
F: Documentation/core-api/boot-time-mm.rst
MEMORY MANAGEMENT
W: http://www.linux-mm.org
+T: quilt https://ozlabs.org/~akpm/mmotm/
+T: quilt https://ozlabs.org/~akpm/mmots/
+T: git git://github.com/hnaz/linux-mm.git
S: Maintained
F: include/linux/mm.h
F: include/linux/gfp.h
F: mm/
MEMORY TECHNOLOGY DEVICES (MTD)
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
+C: irc://irc.oftc.net/mtd
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next
S: Maintained
S: Maintained
F: drivers/mcb/
F: include/linux/mcb.h
-F: Documentation/men-chameleon-bus.txt
+F: Documentation/driver-api/men-chameleon-bus.rst
MEN F21BMC (Board Management Controller)
S: Supported
F: drivers/power/reset/at91-sama5d2_shdwc.c
-MICROCHIP SAMA5D2-COMPATIBLE PIOBU GPIO
-F: drivers/gpio/gpio-sama5d2-piobu.c
-
MICROCHIP SPI DRIVER
S: Supported
F: drivers/misc/atmel-ssc.c
F: include/linux/atmel-ssc.h
-MICROCHIP TIMER COUNTER (TC) AND CLOCKSOURCE DRIVERS
-S: Supported
-F: drivers/misc/atmel_tclib.c
-F: drivers/clocksource/tcb_clksrc.c
-
MICROCHIP USBA UDC DRIVER
MIPS
W: http://www.linux-mips.org/
F: drivers/platform/mips/
MIPS BOSTON DEVELOPMENT BOARD
S: Maintained
F: Documentation/devicetree/bindings/clock/img,boston-clock.txt
F: include/dt-bindings/clock/boston-clock.h
MIPS GENERIC PLATFORM
S: Supported
F: Documentation/devicetree/bindings/power/mti,mips-cpc.txt
F: drivers/*/*loongson1*
F: drivers/*/*/*loongson1*
-MIPS/LOONGSON2 ARCHITECTURE
+MIPS/LOONGSON2EF ARCHITECTURE
S: Maintained
-F: arch/mips/loongson64/fuloong-2e/
-F: arch/mips/loongson64/lemote-2f/
-F: arch/mips/include/asm/mach-loongson64/
+F: arch/mips/loongson2ef/
+F: arch/mips/include/asm/mach-loongson2ef/
F: drivers/*/*loongson2*
F: drivers/*/*/*loongson2*
-MIPS/LOONGSON3 ARCHITECTURE
+MIPS/LOONGSON64 ARCHITECTURE
S: Maintained
F: arch/mips/loongson64/
MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
S: Maintained
-F: Documentation/serial/moxa-smartio.rst
+F: Documentation/driver-api/serial/moxa-smartio.rst
F: drivers/tty/mxser.*
MR800 AVERMEDIA USB FM RADIO DRIVER
S: Supported
-F: driver/net/net_failover.c
+F: drivers/net/net_failover.c
F: include/net/net_failover.h
F: Documentation/networking/net_failover.rst
-NETEFFECT IWARP RNIC DRIVER (IW_NES)
-W: http://www.intel.com/Products/Server/Adapters/Server-Cluster/Server-Cluster-overview.htm
-S: Supported
-F: drivers/infiniband/hw/nes/
-F: include/uapi/rdma/nes-abi.h
-
NETEM NETWORK EMULATOR
NETFILTER
-M: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+M: Jozsef Kadlecsik <kadlec@netfilter.org>
S: Maintained
-F: Documentation/blockdev/nbd.txt
+F: Documentation/admin-guide/blockdev/nbd.rst
F: drivers/block/nbd.c
F: include/trace/events/nbd.h
F: include/uapi/linux/nbd.h
S: Maintained
W: https://fedorahosted.org/dropwatch/
F: net/core/drop_monitor.c
+F: include/uapi/linux/net_dropmon.h
+F: include/net/drop_monitor.h
NETWORKING DRIVERS
NETWORKING [TLS]
S: Maintained
F: net/tls/*
S: Supported
F: drivers/net/ethernet/qlogic/netxen/
+NEXTHOP
+S: Maintained
+F: include/net/nexthop.h
+F: include/uapi/linux/nexthop.h
+F: include/net/netns/nexthop.h
+F: net/ipv4/nexthop.c
+
NFC SUBSYSTEM
S: Orphan
F: include/uapi/linux/nfc.h
F: drivers/nfc/
F: include/linux/platform_data/nfcmrvl.h
-F: include/linux/platform_data/nxp-nci.h
F: Documentation/devicetree/bindings/net/nfc/
NFS, SUNRPC, AND LOCKD CLIENTS
F: include/uapi/linux/sunrpc/
NILFS2 FILESYSTEM
-M: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
+M: Ryusuke Konishi <konishi.ryusuke@gmail.com>
W: https://nilfs.sourceforge.io/
W: https://nilfs.osdn.jp/
F: include/linux/power/bq2415x_charger.h
F: include/linux/power/bq27xxx_battery.h
-F: include/linux/power/isp1704_charger.h
F: drivers/power/supply/bq2415x_charger.c
F: drivers/power/supply/bq27xxx_battery.c
F: drivers/power/supply/bq27xxx_battery_i2c.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/nolibc.git
F: tools/include/nolibc/
+NSDEPS
+S: Maintained
+F: scripts/nsdeps
+F: Documentation/core-api/symbol-namespaces.rst
+
NTB AMD DRIVER
NVM EXPRESS TARGET DRIVER
T: git://git.infradead.org/nvme.git
W: http://git.infradead.org/nvme.git
S: Maintained
-F: Documentation/devicetree/bindings/iio/gyroscope/fxas21002c.txt
+F: Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt
F: drivers/iio/gyro/fxas21002c_core.c
F: drivers/iio/gyro/fxas21002c.h
F: drivers/iio/gyro/fxas21002c_i2c.c
F: drivers/misc/ocxl/
F: include/misc/ocxl*
F: include/uapi/misc/ocxl.h
-F: Documentation/accelerators/ocxl.rst
+F: Documentation/userspace-api/accelerators/ocxl.rst
OMAP AUDIO SUPPORT
S: Orphan
F: drivers/video/fbdev/omap2/
-F: Documentation/arm/OMAP/DSS
+F: Documentation/arm/omap/dss.rst
OMAP FRAMEBUFFER SUPPORT
F: arch/arm/mach-omap2/
F: arch/arm/plat-omap/
F: arch/arm/configs/omap2plus_defconfig
+F: drivers/bus/ti-sysc.c
F: drivers/i2c/busses/i2c-omap.c
F: drivers/irqchip/irq-omap-intc.c
F: drivers/mfd/*omap*.c
F: drivers/regulator/twl-regulator.c
F: drivers/regulator/twl6030-regulator.c
F: include/linux/platform_data/i2c-omap.h
+F: include/linux/platform_data/ti-sysc.h
ONION OMEGA2+ BOARD
S: Maintained
F: drivers/media/i2c/ov5647.c
+OMNIVISION OV5670 SENSOR DRIVER
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/ov5670.c
+
+OMNIVISION OV5675 SENSOR DRIVER
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/ov5675.c
+
OMNIVISION OV5695 SENSOR DRIVER
F: drivers/mtd/nand/onenand/
F: include/linux/mtd/onenand*.h
-ONSTREAM SCSI TAPE DRIVER
-S: Maintained
-F: Documentation/scsi/osst.txt
-F: drivers/scsi/osst.*
-F: drivers/scsi/osst_*.h
-F: drivers/scsi/st.h
-
OP-TEE DRIVER
S: Maintained
F: drivers/tee/optee/
OP-TEE RANDOM NUMBER GENERATOR (RNG) DRIVER
S: Maintained
F: drivers/char/hw_random/optee-rng.c
S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-ocores.txt
-F: Documentation/i2c/busses/i2c-ocores
+F: Documentation/i2c/busses/i2c-ocores.rst
F: drivers/i2c/busses/i2c-ocores.c
F: include/linux/platform_data/i2c-ocores.h
T: git git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git
F: drivers/opp/
F: include/linux/pm_opp.h
-F: Documentation/power/opp.txt
+F: Documentation/power/opp.rst
F: Documentation/devicetree/bindings/opp/
OPL4 DRIVER
S: Supported
F: lib/packing.c
F: include/linux/packing.h
-F: Documentation/packing.txt
+F: Documentation/core-api/packing.rst
PADATA PARALLEL EXECUTION MECHANISM
F: include/linux/padata.h
F: Documentation/padata.txt
+PAGE POOL
+S: Supported
+F: net/core/page_pool.c
+F: include/net/page_pool.h
+
PANASONIC LAPTOP ACPI EXTRAS DRIVER
S: Odd Fixes
-F: Documentation/auxdisplay/lcd-panel-cgram.txt
+F: Documentation/admin-guide/lcd-panel-cgram.rst
F: drivers/auxdisplay/panel.c
PARALLEL PORT SUBSYSTEM
F: include/linux/parport*.h
F: drivers/char/ppdev.c
F: include/uapi/linux/ppdev.h
-F: Documentation/parport*.txt
+F: Documentation/driver-api/parport*.rst
PARAVIRT_OPS INTERFACE
S: Supported
-F: Documentation/virtual/paravirt_ops.txt
+F: Documentation/virt/paravirt_ops.rst
F: arch/*/kernel/paravirt*
F: arch/*/include/asm/paravirt*.h
F: include/linux/hypervisor.h
S: Maintained
-F: Documentation/blockdev/paride.txt
+F: Documentation/admin-guide/blockdev/paride.rst
F: drivers/block/paride/
PARISC ARCHITECTURE
F: Documentation/parisc/
F: drivers/parisc/
F: drivers/char/agp/parisc-agp.c
+F: drivers/input/misc/hp_sdc_rtc.c
F: drivers/input/serio/gscps2.c
+F: drivers/input/serio/hp_sdc*
F: drivers/parport/parport_gsc.*
F: drivers/tty/serial/8250/8250_gsc.c
F: drivers/video/fbdev/sti*
F: drivers/video/console/sti*
F: drivers/video/logo/logo_parisc*
+F: include/linux/hp_sdc.h
PARMAN
S: Maintained
-F: Documentation/switchtec.txt
+F: Documentation/driver-api/switchtec.rst
F: Documentation/ABI/testing/sysfs-class-switchtec
F: drivers/pci/switch/switchtec*
F: include/uapi/linux/switchtec_ioctl.h
S: Supported
-F: Documentation/PCI/pci-error-recovery.txt
+F: Documentation/PCI/pci-error-recovery.rst
F: drivers/pci/pcie/aer.c
F: drivers/pci/pcie/dpc.c
F: drivers/pci/pcie/err.c
-F: Documentation/powerpc/eeh-pci-error-recovery.txt
+F: Documentation/powerpc/eeh-pci-error-recovery.rst
F: arch/powerpc/kernel/eeh*.c
F: arch/powerpc/platforms/*/eeh*.c
F: arch/powerpc/include/*/eeh*.h
S: Supported
-F: Documentation/PCI/pci-error-recovery.txt
+F: Documentation/PCI/pci-error-recovery.rst
PCI MSI DRIVER FOR ALTERA MSI IP
PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
Q: http://patchwork.ozlabs.org/project/linux-pci/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/
S: Supported
F: drivers/pci/controller/
-PCIE DRIVER FOR ANNAPURNA LABS
+PCIE DRIVER FOR AMAZON ANNAPURNA LABS
S: Maintained
+F: Documentation/devicetree/bindings/pci/pcie-al.txt
F: drivers/pci/controller/dwc/pcie-al.c
PCIE DRIVER FOR AMLOGIC MESON
S: Maintained
F: drivers/platform/x86/peaq-wmi.c
+PENSANDO ETHERNET DRIVERS
+S: Supported
+F: Documentation/networking/device_drivers/pensando/ionic.rst
+F: drivers/net/ethernet/pensando/
+
PER-CPU MEMORY ALLOCATOR
F: Documentation/input/devices/pxrc.rst
F: drivers/input/joystick/pxrc.c
+FLYSKY FSIA6B RC RECEIVER
+S: Maintained
+F: drivers/input/joystick/fsia6b.c
+
PHONET PROTOCOL
S: Supported
F: arch/arm/mach-picoxcell/
F: drivers/crypto/picoxcell*
+PIDFD API
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
+F: samples/pidfd/
+F: tools/testing/selftests/pidfd/
+F: tools/testing/selftests/clone3/
+K: (?i)pidfd
+K: (?i)clone3
+K: \b(clone_args|kernel_clone_args)\b
+
PIN CONTROL SUBSYSTEM
S: Supported
F: drivers/pinctrl/pinctrl-at91*
+F: drivers/gpio/gpio-sama5d2-piobu.c
PIN CONTROLLER - FREESCALE
F: drivers/video/fbdev/fb-puv3.c
F: drivers/rtc/rtc-puv3.c
+PLANTOWER PMS7003 AIR POLLUTION SENSOR DRIVER
+S: Maintained
+F: drivers/iio/chemical/pms7003.c
+F: Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
+
PMBUS HARDWARE MONITORING DRIVERS
F: drivers/scsi/pmcraid.*
PMC SIERRA PM8001 DRIVER
S: Supported
F: drivers/scsi/pm8001/
F: include/linux/pm.h
F: include/linux/pm_*
F: include/linux/powercap.h
+F: include/linux/intel_rapl.h
F: drivers/powercap/
F: kernel/configs/nopm.config
W: http://wiki.enneenne.com/index.php/LinuxPPS_support
S: Maintained
-F: Documentation/pps/
+F: Documentation/driver-api/pps.rst
F: Documentation/devicetree/bindings/pps/pps-gpio.txt
F: Documentation/ABI/testing/sysfs-pps
F: drivers/pps/
PROC SYSCTL
S: Maintained
F: fs/proc/proc_sysctl.c
F: include/linux/sysctl.h
F: kernel/sysctl.c
+F: kernel/sysctl-test.c
F: tools/testing/selftests/sysctl/
PS3 NETWORK SUPPORT
S: Maintained
W: http://linuxptp.sourceforge.net/
F: Documentation/ABI/testing/sysfs-ptp
-F: Documentation/ptp/*
+F: Documentation/driver-api/ptp.rst
F: drivers/net/phy/dp83640*
F: drivers/ptp/*
F: include/linux/ptp_cl*
F: include/linux/tracehook.h
F: include/uapi/linux/ptrace.h
F: include/uapi/linux/ptrace.h
-F: include/asm-generic/ptrace.h
F: kernel/ptrace.c
F: arch/*/ptrace*.c
F: arch/*/*/ptrace*.c
PWM SUBSYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git
-F: Documentation/pwm.txt
+Q: https://patchwork.ozlabs.org/project/linux-pwm/list/
+F: Documentation/driver-api/pwm.rst
F: Documentation/devicetree/bindings/pwm/
F: include/linux/pwm.h
F: drivers/pwm/
F: include/linux/pwm_backlight.h
F: drivers/gpio/gpio-mvebu.c
F: Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+K: pwm_(config|apply_state|ops)
PXA GPIO DRIVER
F: drivers/scsi/qla1280.[ch]
QLOGIC QLA2XXX FC-SCSI DRIVER
-M: qla2xxx-upstream@qlogic.com
+M: hmadhani@marvell.com
S: Supported
F: Documentation/scsi/LICENSE.qla2xxx
S: Supported
-F: drivers/net/ethernet/qlogic/qlge/
+F: drivers/staging/qlge/
QM1D1B0004 MEDIA DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/opp/kryo-cpufreq.txt
-F: drivers/cpufreq/qcom-cpufreq-kryo.c
+F: Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
+F: drivers/cpufreq/qcom-cpufreq-nvmem.c
QUALCOMM EMAC GIGABIT ETHERNET DRIVER
S: Maintained
F: drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
-F: Documentation/devicetree/bindings/net/qcom,dwmac.txt
+F: Documentation/devicetree/bindings/net/qcom,ethqos.txt
QUALCOMM GENERIC INTERFACE I2C DRIVER
F: drivers/i2c/busses/i2c-qcom-geni.c
QUALCOMM HEXAGON ARCHITECTURE
-M: Richard Kuo <rkuo@codeaurora.org>
+M: Brian Cain <bcain@codeaurora.org>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel.git
S: Supported
F: arch/hexagon/
RAMDISK RAM BLOCK DEVICE DRIVER
S: Maintained
-F: Documentation/blockdev/ramdisk.txt
+F: Documentation/admin-guide/blockdev/ramdisk.rst
F: drivers/block/brd.c
RANCHU VIRTUAL BOARD FOR MIPS
F: drivers/net/wireless/ray*
RCUTORTURE TEST FRAMEWORK
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
F: Documentation/x86/resctrl*
READ-COPY UPDATE (RCU)
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git
S: Maintained
F: Documentation/devicetree/bindings/rtc/
-F: Documentation/rtc.txt
+F: Documentation/admin-guide/rtc.rst
F: drivers/rtc/
F: include/linux/rtc.h
F: include/uapi/linux/rtc.h
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rproc-next
S: Maintained
F: Documentation/devicetree/bindings/remoteproc/
+F: Documentation/ABI/testing/sysfs-class-remoteproc
F: Documentation/remoteproc.txt
F: drivers/remoteproc/
F: include/linux/remoteproc.h
+F: include/linux/remoteproc/
REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rpmsg-next
S: Maintained
F: drivers/rpmsg/
F: Documentation/rpmsg.txt
+F: Documentation/ABI/testing/sysfs-bus-rpmsg
F: include/linux/rpmsg.h
F: include/linux/rpmsg/
+F: include/uapi/linux/rpmsg.h
+F: samples/rpmsg/
RENESAS CLOCK DRIVERS
RENESAS EMEV2 I2C DRIVER
S: Supported
-F: Documentation/devicetree/bindings/i2c/i2c-emev2.txt
+F: Documentation/devicetree/bindings/i2c/renesas,iic-emev2.txt
F: drivers/i2c/busses/i2c-emev2.c
RENESAS ETHERNET DRIVERS
RENESAS R-CAR I2C DRIVERS
S: Supported
-F: Documentation/devicetree/bindings/i2c/i2c-rcar.txt
-F: Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+F: Documentation/devicetree/bindings/i2c/renesas,i2c.txt
+F: Documentation/devicetree/bindings/i2c/renesas,iic.txt
F: drivers/i2c/busses/i2c-rcar.c
F: drivers/i2c/busses/i2c-sh_mobile.c
RENESAS RIIC DRIVER
S: Supported
-F: Documentation/devicetree/bindings/i2c/i2c-riic.txt
+F: Documentation/devicetree/bindings/i2c/renesas,riic.txt
F: drivers/i2c/busses/i2c-riic.c
RENESAS USB PHY DRIVER
RESTARTABLE SEQUENCES SUPPORT
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
S: Maintained
-F: Documentation/rfkill.txt
+F: Documentation/driver-api/rfkill.rst
F: Documentation/ABI/stable/sysfs-class-rfkill
F: net/rfkill/
F: include/linux/rfkill.h
F: drivers/mtd/nand/raw/r852.h
RISC-V ARCHITECTURE
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git
S: Supported
F: arch/riscv/
K: riscv
F: Documentation/ABI/*/sysfs-driver-hid-roccat*
ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER
S: Maintained
F: drivers/media/platform/rockchip/rga/
S: Maintained
-F: drivers/staging/media/platform/hantro/
+F: drivers/staging/media/hantro/
F: Documentation/devicetree/bindings/media/rockchip-vpu.txt
ROCKER DRIVER
P: Comtrol Corp.
W: http://www.comtrol.com
S: Maintained
-F: Documentation/serial/rocket.rst
+F: Documentation/driver-api/serial/rocket.rst
F: drivers/tty/rocket*
ROCKETPORT EXPRESS/INFINITY DRIVER
S390 VFIO-CCW DRIVER
F: drivers/media/pci/saa7146/
F: include/media/drv-intf/saa7146*
+SAFESETID SECURITY MODULE
+S: Supported
+F: security/safesetid/
+F: Documentation/admin-guide/LSM/SafeSetID.rst
+
SAMSUNG AUDIO (ASoC) DRIVERS
S: Maintained
+F: Documentation/devicetree/bindings/crypto/samsung-slimsss.txt
+F: Documentation/devicetree/bindings/crypto/samsung-sss.txt
F: drivers/crypto/s5p-sss.c
SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
F: drivers/clk/samsung/
F: include/dt-bindings/clock/exynos*.h
F: Documentation/devicetree/bindings/clock/exynos*.txt
+F: Documentation/devicetree/bindings/clock/samsung,s3c*
+F: Documentation/devicetree/bindings/clock/samsung,s5p*
SAMSUNG SPI DRIVERS
S: Supported
F: Documentation/devicetree/bindings/phy/samsung-phy.txt
-F: Documentation/phy/samsung-usb2.txt
+F: Documentation/driver-api/phy/samsung-usb2.rst
F: drivers/phy/samsung/phy-exynos4210-usb2.c
F: drivers/phy/samsung/phy-exynos4x12-usb2.c
F: drivers/phy/samsung/phy-exynos5250-usb2.c
SCHEDULER
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
S: Maintained
SCx200 CPU SUPPORT
S: Odd Fixes
-F: Documentation/i2c/busses/scx200_acb
+F: Documentation/i2c/busses/scx200_acb.rst
F: arch/x86/platform/scx200/
F: drivers/watchdog/scx200_wdt.c
F: drivers/i2c/busses/scx200*
F: drivers/misc/phantom.c
F: include/uapi/linux/phantom.h
+SENSIRION SPS30 AIR POLLUTION SENSOR DRIVER
+S: Maintained
+F: drivers/iio/chemical/sps30.c
+F: Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
+
SERIAL DEVICE BUS
F: drivers/net/phy/sfp*
F: include/linux/phylink.h
F: include/linux/sfp.h
+K: phylink
SGI GRU DRIVER
S: Supported
-F: Documentation/ia64/serial.txt
+F: Documentation/ia64/serial.rst
F: drivers/tty/serial/ioc?_serial.c
F: include/linux/ioc?.h
F: drivers/media/mmc/siano/
SIFIVE DRIVERS
-M: Palmer Dabbelt <palmer@sifive.com>
+M: Palmer Dabbelt <palmer@dabbelt.com>
T: git git://github.com/sifive/riscv-linux.git
S: Supported
-K: sifive
+K: [^@]sifive
N: sifive
SIFIVE FU540 SYSTEM-ON-CHIP
-M: Palmer Dabbelt <palmer@sifive.com>
+M: Palmer Dabbelt <palmer@dabbelt.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pjw/sifive.git
S: Supported
S: Maintained
F: drivers/video/fbdev/sm712*
-F: Documentation/fb/sm712fb.txt
+F: Documentation/fb/sm712fb.rst
SIMPLE FIRMWARE INTERFACE (SFI)
W: http://www.winischhofer.net/linuxsisvga.shtml
S: Maintained
-F: Documentation/fb/sisfb.txt
+F: Documentation/fb/sisfb.rst
F: drivers/video/fbdev/sis/
F: include/video/sisfb.h
SLEEPABLE READ-COPY UPDATE (SRCU)
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
S: Maintained
F: drivers/leds/leds-net48xx.c
+SOFT-IWARP DRIVER (siw)
+S: Supported
+F: drivers/infiniband/sw/siw/
+F: include/uapi/rdma/siw-abi.h
+
SOFT-ROCE DRIVER (rxe)
F: include/uapi/linux/arm_sdei.h
SOFTWARE RAID (Multiple Disks) SUPPORT
-M: Shaohua Li <shli@kernel.org>
+M: Song Liu <song@kernel.org>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/shli/md.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git
S: Supported
F: drivers/md/Makefile
F: drivers/md/Kconfig
SOCIONEXT (SNI) NETSEC NETWORK DRIVER
S: Maintained
F: drivers/net/ethernet/socionext/netsec.c
W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
S: Maintained
-F: Documentation/laptops/sony-laptop.txt
+F: Documentation/admin-guide/laptops/sony-laptop.rst
F: drivers/char/sonypi.c
F: drivers/platform/x86/sony-laptop.c
F: include/linux/sony-laptop.h
F: arch/arm/mach-spear/
SPI NOR SUBSYSTEM
W: http://www.linux-mtd.infradead.org/
S: Odd Fixes
F: drivers/staging/comedi/
-STAGING - EROFS FILE SYSTEM
+STAGING - FIELDBUS SUBSYSTEM
+S: Maintained
+F: drivers/staging/fieldbus/*
+F: drivers/staging/fieldbus/Documentation/
+
+STAGING - HMS ANYBUS-S BUS
S: Maintained
-F: drivers/staging/erofs/
+F: drivers/staging/fieldbus/anybuss/
STAGING - INDUSTRIAL IO
S: Maintained
-F: Documentation/svga.txt
+F: Documentation/admin-guide/svga.rst
F: arch/x86/boot/video*
SWIOTLB SUBSYSTEM
F: drivers/dma-buf/sw_sync.c
F: include/linux/sync_file.h
F: include/uapi/linux/sync_file.h
-F: Documentation/sync_file.txt
+F: Documentation/driver-api/sync_file.rst
T: git git://anongit.freedesktop.org/drm/drm-misc
SYNOPSYS ARC ARCHITECTURE
SYNOPSYS DESIGNWARE AXI DMAC DRIVER
S: Maintained
-F: drivers/dma/dwi-axi-dmac/
+F: drivers/dma/dw-axi-dmac/
F: Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.txt
SYNOPSYS DESIGNWARE DMAC DRIVER
F: drivers/cpufreq/sc[mp]i-cpufreq.c
F: drivers/firmware/arm_scpi.c
F: drivers/firmware/arm_scmi/
+F: drivers/reset/reset-scmi.c
F: include/linux/sc[mp]i_protocol.h
SYSTEM RESET/SHUTDOWN DRIVERS
TEE SUBSYSTEM
S: Maintained
F: include/linux/tee_drv.h
F: include/uapi/linux/tee.h
F: include/linux/soc/ti/ti_sci_protocol.h
F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
F: drivers/soc/ti/ti_sci_pm_domains.c
+F: include/dt-bindings/soc/ti,sci_pm_domain.h
F: Documentation/devicetree/bindings/reset/ti,sci-reset.txt
F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt
F: drivers/clk/keystone/sci-clk.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal.git
S: Supported
-F: Documentation/thermal/cpu-cooling-api.txt
+F: Documentation/driver-api/thermal/cpu-cooling-api.rst
F: drivers/thermal/cpu_cooling.c
F: include/linux/cpu_cooling.h
TI LP855x BACKLIGHT DRIVER
S: Maintained
-F: Documentation/backlight/lp855x-driver.txt
+F: Documentation/driver-api/backlight/lp855x-driver.rst
F: drivers/video/backlight/lp855x_bl.c
F: include/linux/platform_data/lp855x.h
F: drivers/net/ethernet/ti/netcp*
TI PCM3060 ASoC CODEC DRIVER
-M: Kirill Marinushkin <kmarinushkin@birdec.tech>
+M: Kirill Marinushkin <kmarinushkin@birdec.com>
S: Maintained
F: Documentation/devicetree/bindings/sound/pcm3060.txt
TORTURE-TEST MODULES
-M: "Paul E. McKenney" <paulmck@linux.ibm.com>
+M: "Paul E. McKenney" <paulmck@kernel.org>
S: Supported
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
-F: Documentation/serial/
+F: Documentation/driver-api/serial/
F: drivers/tty/
F: drivers/tty/serial/serial_core.c
F: include/linux/serial_core.h
UBI FILE SYSTEM (UBIFS)
-T: git git://git.infradead.org/ubifs-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git fixes
W: http://www.linux-mtd.infradead.org/doc/ubifs.html
S: Supported
F: Documentation/filesystems/ubifs.txt
UFS FILESYSTEM
S: Maintained
-F: Documentation/filesystems/ufs.txt
+F: Documentation/admin-guide/ufs.rst
F: fs/ufs/
UHID USERSPACE HID IO DRIVER:
F: include/linux/ulpi/
ULTRA-WIDEBAND (UWB) SUBSYSTEM:
-S: Orphan
-F: drivers/uwb/
-F: include/linux/uwb.h
-F: include/linux/uwb/
+S: Obsolete
+F: drivers/staging/uwb/
UNICODE SUBSYSTEM:
F: drivers/scsi/ufs/ufs-mediatek*
UNSORTED BLOCK IMAGES (UBI)
W: http://www.linux-mtd.infradead.org/
-T: git git://git.infradead.org/ubifs-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git fixes
S: Supported
F: drivers/mtd/ubi/
F: include/linux/mtd/ubi.h
S: Maintained
-F: Documentation/usb/acm.txt
+F: Documentation/usb/acm.rst
F: drivers/usb/class/cdc-acm.*
USB AR5523 WIRELESS DRIVER
S: Maintained
F: drivers/net/usb/dm9601.c
-USB DIAMOND RIO500 DRIVER
-W: http://rio500.sourceforge.net
-S: Maintained
-F: drivers/usb/misc/rio500*
-
USB EHCI DRIVER
S: Maintained
-F: Documentation/usb/ehci.txt
+F: Documentation/usb/ehci.rst
F: drivers/usb/host/ehci*
USB GADGET/PERIPHERAL SUBSYSTEM
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
S: Maintained
-F: Documentation/hid/hiddev.txt
+F: Documentation/hid/hiddev.rst
F: drivers/hid/usbhid/
USB INTEL XHCI ROLE MUX DRIVER
S: Maintained
-F: Documentation/usb/ohci.txt
+F: Documentation/usb/ohci.rst
F: drivers/usb/host/ohci*
USB OTG FSM (Finite State Machine)
S: Maintained
-F: Documentation/usb/usbip_protocol.txt
+F: Documentation/usb/usbip_protocol.rst
F: drivers/usb/usbip/
F: tools/usb/usbip/
F: tools/testing/selftests/drivers/usb/usbip/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git
S: Maintained
-F: Documentation/usb/usb-serial.txt
+F: Documentation/usb/usb-serial.rst
F: drivers/usb/serial/
F: include/linux/usb/serial.h
Q: https://patchwork.ozlabs.org/project/linux-um/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git
S: Maintained
-F: Documentation/virtual/uml/
+F: Documentation/virt/uml/
F: arch/um/
F: arch/x86/um/
F: fs/hostfs/
W: https://github.com/mjanusz/v86d
S: Maintained
-F: Documentation/fb/uvesafb.txt
+F: Documentation/fb/uvesafb.rst
F: drivers/video/fbdev/uvesafb.*
VF610 NAND DRIVER
T: git git://github.com/awilliam/linux-vfio.git
S: Maintained
-F: Documentation/vfio.txt
+F: Documentation/driver-api/vfio.rst
F: drivers/vfio/
F: include/linux/vfio.h
F: include/uapi/linux/vfio.h
S: Maintained
-F: Documentation/vfio-mediated-device.txt
+F: Documentation/driver-api/vfio-mediated-device.rst
F: drivers/vfio/mdev/
F: include/linux/mdev.h
F: samples/vfio-mdev/
VIRTIO AND VHOST VSOCK DRIVER
F: drivers/s390/virtio/
F: arch/s390/include/uapi/asm/virtio-ccw.h
+VIRTIO FILE SYSTEM
+W: https://virtio-fs.gitlab.io/
+S: Supported
+F: fs/fuse/virtio_fs.c
+F: include/uapi/linux/virtio_fs.h
+F: Documentation/filesystems/virtiofs.rst
+
VIRTIO GPU DRIVER
F: drivers/virtio/virtio_input.c
F: include/uapi/linux/virtio_input.h
+VIRTIO IOMMU DRIVER
+S: Maintained
+F: drivers/iommu/virtio-iommu.c
+F: include/uapi/linux/virtio_iommu.h
+
VIRTUAL BOX GUEST DEVICE DRIVER
F: include/linux/vme*
VMWARE BALLOON DRIVER
F: drivers/misc/vmw_balloon.c
VMWARE HYPERVISOR INTERFACE
S: Supported
F: arch/x86/kernel/cpu/vmware.c
+F: arch/x86/include/asm/vmware.h
VMWARE PVRDMA DRIVER
F: drivers/regulator/
F: include/dt-bindings/regulator/
F: include/linux/regulator/
+K: regulator_get_optional
VRF
-M: David Ahern <dsa@cumulusnetworks.com>
S: Maintained
F: drivers/net/vrf.c
F: Documentation/networking/vrf.txt
+ VSPRINTF
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git
+ S: Maintained
+ F: lib/vsprintf.c
+ F: lib/test_printf.c
+ F: Documentation/core-api/printk-formats.rst
+
VT1211 HARDWARE MONITOR DRIVER
S: Supported
W: http://linuxwimax.org
-F: Documentation/wimax/README.wimax
+F: Documentation/admin-guide/wimax/wimax.rst
F: include/linux/wimax/debug.h
F: include/net/wimax.h
F: include/uapi/linux/wimax.h
T: git git://git.infradead.org/linux-platform-drivers-x86.git
-S: Maintained
+S: Odd Fixes
F: drivers/platform/x86/
F: drivers/platform/olpc/
S: Supported
F: net/core/xdp.c
XDP SOCKETS (AF_XDP)
S: Maintained
XEN NETWORK BACKEND DRIVER
+M: Paul Durrant <paul@xen.org>
S: Supported
W: http://xfs.org/
T: git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git
S: Supported
-F: Documentation/filesystems/xfs.txt
+F: Documentation/admin-guide/xfs.rst
+F: Documentation/ABI/testing/sysfs-fs-xfs
+F: Documentation/filesystems/xfs-delayed-logging-design.txt
+F: Documentation/filesystems/xfs-self-describing-metadata.txt
F: fs/xfs/
+F: include/uapi/linux/dqblk_xfs.h
+F: include/uapi/linux/fsmap.h
XILINX AXI ETHERNET DRIVER
S: Maintained
F: drivers/net/ethernet/xilinx/xilinx_axienet*
F: drivers/media/platform/xilinx/
F: include/uapi/linux/xilinx-v4l2-controls.h
+XILINX SD-FEC IP CORES
+S: Maintained
+F: Documentation/devicetree/bindings/misc/xlnx,sd-fec.txt
+F: Documentation/misc-devices/xilinx_sdfec.rst
+F: drivers/misc/xilinx_sdfec.c
+F: drivers/misc/Kconfig
+F: drivers/misc/Makefile
+F: include/uapi/misc/xilinx_sdfec.h
+
XILLYBUS DRIVER
F: mm/zpool.c
F: include/linux/zpool.h
-ZR36067 VIDEO FOR LINUX DRIVER
-W: http://mjpeg.sourceforge.net/driver-zoran/
-T: hg https://linuxtv.org/hg/v4l-dvb
-S: Odd Fixes
-F: drivers/staging/media/zoran/
-
ZRAM COMPRESSED RAM BLOCK DEVICE DRVIER
S: Maintained
F: drivers/block/zram/
-F: Documentation/blockdev/zram.txt
+F: Documentation/admin-guide/blockdev/zram.rst
ZS DECSTATION Z85C30 SERIAL DRIVER
ZSWAP COMPRESSED SWAP CACHING
S: Maintained
F: mm/zswap.c
case TYPE_DATA:
return get_num_wrps();
default:
- pr_warning("unknown slot type: %d\n", type);
+ pr_warn("unknown slot type: %d\n", type);
return 0;
}
}
GEN_READ_WB_REG_CASES(AARCH64_DBG_REG_WVR, AARCH64_DBG_REG_NAME_WVR, val);
GEN_READ_WB_REG_CASES(AARCH64_DBG_REG_WCR, AARCH64_DBG_REG_NAME_WCR, val);
default:
- pr_warning("attempt to read from unknown breakpoint register %d\n", n);
+ pr_warn("attempt to read from unknown breakpoint register %d\n", n);
}
return val;
GEN_WRITE_WB_REG_CASES(AARCH64_DBG_REG_WVR, AARCH64_DBG_REG_NAME_WVR, val);
GEN_WRITE_WB_REG_CASES(AARCH64_DBG_REG_WCR, AARCH64_DBG_REG_NAME_WCR, val);
default:
- pr_warning("attempt to write to unknown breakpoint register %d\n", n);
+ pr_warn("attempt to write to unknown breakpoint register %d\n", n);
}
isb();
}
case AARCH64_BREAKPOINT_EL1:
return DBG_ACTIVE_EL1;
default:
- pr_warning("invalid breakpoint privilege level %d\n", privilege);
+ pr_warn("invalid breakpoint privilege level %d\n", privilege);
return -EINVAL;
}
}
/* Aligned */
break;
case 1:
- /* Allow single byte watchpoint. */
- if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
- break;
case 2:
/* Allow halfword watchpoints and breakpoints. */
if (hw->ctrl.len == ARM_BREAKPOINT_LEN_2)
break;
+
+ /* Fallthrough */
+ case 3:
+ /* Allow single byte watchpoint. */
+ if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
+ break;
+
+ /* Fallthrough */
default:
return -EINVAL;
}
* time out.
*/
wait_for_completion_timeout(&cpu_running,
- msecs_to_jiffies(1000));
+ msecs_to_jiffies(5000));
if (!cpu_online(cpu)) {
pr_crit("CPU%u: failed to come online\n", cpu);
secondary_data.task = NULL;
secondary_data.stack = NULL;
+ __flush_dcache_area(&secondary_data, sizeof(secondary_data));
status = READ_ONCE(secondary_data.status);
if (ret && status) {
default:
pr_err("CPU%u: failed in unknown state : 0x%lx\n",
cpu, status);
+ cpus_stuck_in_kernel++;
break;
case CPU_KILL_ME:
if (!op_cpu_kill(cpu)) {
pr_crit("CPU%u: died during early boot\n", cpu);
break;
}
- /* Fall through */
pr_crit("CPU%u: may not have shut down cleanly\n", cpu);
+ /* Fall through */
case CPU_STUCK_IN_KERNEL:
pr_crit("CPU%u: is stuck in kernel\n", cpu);
if (status & CPU_STUCK_REASON_52_BIT_VA)
*/
err = op_cpu_kill(cpu);
if (err)
- pr_warn("CPU%d may not have shut down cleanly: %d\n",
- cpu, err);
+ pr_warn("CPU%d may not have shut down cleanly: %d\n", cpu, err);
}
/*
void __init smp_prepare_boot_cpu(void)
{
set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
- /*
- * Initialise the static keys early as they may be enabled by the
- * cpufeature code.
- */
- jump_label_init();
cpuinfo_store_boot_cpu();
/*
udelay(1);
if (num_online_cpus() > 1)
- pr_warning("SMP: failed to stop secondary CPUs %*pbl\n",
- cpumask_pr_args(cpu_online_mask));
+ pr_warn("SMP: failed to stop secondary CPUs %*pbl\n",
+ cpumask_pr_args(cpu_online_mask));
sdei_mask_local_cpu();
}
udelay(1);
if (atomic_read(&waiting_for_crash_ipi) > 0)
- pr_warning("SMP: failed to stop secondary CPUs %*pbl\n",
- cpumask_pr_args(&mask));
+ pr_warn("SMP: failed to stop secondary CPUs %*pbl\n",
+ cpumask_pr_args(&mask));
sdei_mask_local_cpu();
}
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/cpu.h>
+#include <linux/kdev_t.h>
#include <linux/kernel.h>
#include <linux/memblock.h>
#include <linux/reboot.h>
#include <linux/threads.h>
#include <linux/screen_info.h>
#include <linux/dmi.h>
+#include <linux/root_dev.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/efi.h>
#include <linux/kexec.h>
#include <linux/crash_dump.h>
-#include <asm/machvec.h>
#include <asm/mca.h>
#include <asm/meminit.h>
#include <asm/page.h>
#include <asm/smp.h>
#include <asm/tlbflush.h>
#include <asm/unistd.h>
-#include <asm/hpsim.h>
+#include <asm/uv/uv.h>
#if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE)
# error "struct cpuinfo_ia64 too big!"
#endif
+char ia64_platform_name[64];
+
#ifdef CONFIG_SMP
unsigned long __per_cpu_offset[NR_CPUS];
EXPORT_SYMBOL(__per_cpu_offset);
* This function checks if the reserved crashkernel is allowed on the specific
* IA64 machine flavour. Machines without an IO TLB use swiotlb and require
* some memory below 4 GB (i.e. in 32 bit area), see the implementation of
- * lib/swiotlb.c. The hpzx1 architecture has an IO TLB but cannot use that
+ * kernel/dma/swiotlb.c. The hpzx1 architecture has an IO TLB but cannot use that
* in kdump case. See the comment in sba_init() in sba_iommu.c.
*
* So, the only machvec that really supports loading the kdump kernel
- * over 4 GB is "sn2".
+ * over 4 GB is "uv".
*/
static int __init check_crashkernel_memory(unsigned long pbase, size_t size)
{
- if (ia64_platform_is("sn2") || ia64_platform_is("uv"))
+ if (is_uv_system())
return 1;
else
return pbase < (1UL << 32);
}
if (!check_crashkernel_memory(base, size)) {
- pr_warning("crashkernel: There would be kdump memory "
+ pr_warn("crashkernel: There would be kdump memory "
"at %ld GB but this is unusable because it "
"must\nbe below 4 GB. Change the memory "
"configuration of the machine.\n",
static inline int __init
early_console_setup (char *cmdline)
{
- int earlycons = 0;
-
-#ifdef CONFIG_SERIAL_SGI_L1_CONSOLE
- {
- extern int sn_serial_console_early_setup(void);
- if (!sn_serial_console_early_setup())
- earlycons++;
- }
-#endif
#ifdef CONFIG_EFI_PCDP
if (!efi_setup_pcdp_console(cmdline))
- earlycons++;
+ return 0;
#endif
- if (!simcons_register())
- earlycons++;
+ return -1;
+}
+
+static void __init
+screen_info_setup(void)
+{
+ unsigned int orig_x, orig_y, num_cols, num_rows, font_height;
+
+ memset(&screen_info, 0, sizeof(screen_info));
+
+ if (!ia64_boot_param->console_info.num_rows ||
+ !ia64_boot_param->console_info.num_cols) {
+ printk(KERN_WARNING "invalid screen-info, guessing 80x25\n");
+ orig_x = 0;
+ orig_y = 0;
+ num_cols = 80;
+ num_rows = 25;
+ font_height = 16;
+ } else {
+ orig_x = ia64_boot_param->console_info.orig_x;
+ orig_y = ia64_boot_param->console_info.orig_y;
+ num_cols = ia64_boot_param->console_info.num_cols;
+ num_rows = ia64_boot_param->console_info.num_rows;
+ font_height = 400 / num_rows;
+ }
- return (earlycons) ? 0 : -1;
+ screen_info.orig_x = orig_x;
+ screen_info.orig_y = orig_y;
+ screen_info.orig_video_cols = num_cols;
+ screen_info.orig_video_lines = num_rows;
+ screen_info.orig_video_points = font_height;
+ screen_info.orig_video_mode = 3; /* XXX fake */
+ screen_info.orig_video_isVGA = 1; /* XXX fake */
+ screen_info.orig_video_ega_bx = 3; /* XXX fake */
}
static inline void
efi_init();
io_port_init();
-#ifdef CONFIG_IA64_GENERIC
- /* machvec needs to be parsed from the command line
- * before parse_early_param() is called to ensure
- * that ia64_mv is initialised before any command line
- * settings may cause console setup to occur
- */
- machvec_init_from_cmdline(*cmdline_p);
-#endif
-
+ uv_probe_system_type();
parse_early_param();
if (early_console_setup(*cmdline_p) == 0)
mark_bsp_online();
-#ifdef CONFIG_ACPI
/* Initialize the ACPI boot-time table parser */
acpi_table_init();
early_acpi_boot_init();
-# ifdef CONFIG_ACPI_NUMA
+#ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
acpi_numa_fixup();
-# ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
prefill_possible_map();
-# endif
+#endif
per_cpu_scan_finalize((cpumask_weight(&early_cpu_possible_map) == 0 ?
32 : cpumask_weight(&early_cpu_possible_map)),
additional_cpus > 0 ? additional_cpus : 0);
-# endif
-#endif /* CONFIG_APCI_BOOT */
+#endif /* CONFIG_ACPI_NUMA */
#ifdef CONFIG_SMP
smp_build_cpu_map();
find_memory();
/* process SAL system table: */
- ia64_sal_init(__va(efi.sal_systab));
+ ia64_sal_init(__va(sal_systab_phys));
#ifdef CONFIG_ITANIUM
ia64_patch_rse((u64) __start___rse_patchlist, (u64) __end___rse_patchlist);
if (!nomca)
ia64_mca_init();
- platform_setup(cmdline_p);
-#ifndef CONFIG_IA64_HP_SIM
- check_sal_cache_flush();
+ /*
+ * Default to /dev/sda2. This assumes that the EFI partition
+ * is physical disk 1 partition 1 and the Linux root disk is
+ * physical disk 1 partition 2.
+ */
+ ROOT_DEV = Root_SDA2; /* default to second partition on first drive */
+
+ if (is_uv_system())
+ uv_setup(cmdline_p);
+#ifdef CONFIG_SMP
+ else
+ init_smp_config();
#endif
+
+ screen_info_setup();
paging_init();
clear_sched_clock_stable();
ia64_patch_phys_stack_reg(num_phys_stacked*8 + 8);
max_num_phys_stacked = num_phys_stacked;
}
- platform_cpu_init();
}
void __init
iommu_size -= round_up(a, PMD_PAGE_SIZE) - a;
if (iommu_size < 64*1024*1024) {
- pr_warning(
- "PCI-DMA: Warning: Small IOMMU %luMB."
+ pr_warn("PCI-DMA: Warning: Small IOMMU %luMB."
" Consider increasing the AGP aperture in BIOS\n",
- iommu_size >> 20);
+ iommu_size >> 20);
}
return iommu_size;
nommu:
/* Should not happen anymore */
- pr_warning("PCI-DMA: More than 4GB of RAM and no IOMMU\n"
- "falling back to iommu=soft.\n");
+ pr_warn("PCI-DMA: More than 4GB of RAM and no IOMMU - falling back to iommu=soft.\n");
return -1;
}
.unmap_page = gart_unmap_page,
.alloc = gart_alloc_coherent,
.free = gart_free_coherent,
+ .mmap = dma_common_mmap,
+ .get_sgtable = dma_common_get_sgtable,
.dma_supported = dma_direct_supported,
+ .get_required_mask = dma_direct_get_required_mask,
};
static void gart_iommu_shutdown(void)
!gart_iommu_aperture ||
(no_agp && init_amd_gatt(&info) < 0)) {
if (max_pfn > MAX_DMA32_PFN) {
- pr_warning("More than 4GB of memory but GART IOMMU not available.\n");
- pr_warning("falling back to iommu=soft.\n");
+ pr_warn("More than 4GB of memory but GART IOMMU not available.\n");
+ pr_warn("falling back to iommu=soft.\n");
}
return 0;
}
unsigned disabled_cpus;
/* Processor that is doing the boot up */
-unsigned int boot_cpu_physical_apicid = -1U;
+unsigned int boot_cpu_physical_apicid __ro_after_init = -1U;
EXPORT_SYMBOL_GPL(boot_cpu_physical_apicid);
-u8 boot_cpu_apic_version;
+u8 boot_cpu_apic_version __ro_after_init;
/*
* The highest APIC ID seen during enumeration.
* disable_cpu_apicid=<int>, mostly used for the kdump 2nd kernel to
* avoid undefined behaviour caused by sending INIT from AP to BSP.
*/
-static unsigned int disabled_cpu_apicid __read_mostly = BAD_APICID;
+static unsigned int disabled_cpu_apicid __ro_after_init = BAD_APICID;
/*
* This variable controls which CPUs receive external NMIs. By default,
* external NMIs are delivered only to the BSP.
*/
-static int apic_extnmi = APIC_EXTNMI_BSP;
+static int apic_extnmi __ro_after_init = APIC_EXTNMI_BSP;
/*
* Map cpu index to physical APIC ID
DEFINE_EARLY_PER_CPU_READ_MOSTLY(int, x86_cpu_to_logical_apicid, BAD_APICID);
/* Local APIC was disabled by the BIOS and enabled by the kernel */
-static int enabled_via_apicbase;
+static int enabled_via_apicbase __ro_after_init;
/*
* Handle interrupt mode configuration register (IMCR).
__setup("apicpmtimer", setup_apicpmtimer);
#endif
-unsigned long mp_lapic_addr;
-int disable_apic;
+unsigned long mp_lapic_addr __ro_after_init;
+int disable_apic __ro_after_init;
/* Disable local APIC timer from the kernel commandline or via dmi quirk */
static int disable_apic_timer __initdata;
/* Local APIC timer works in C2 */
-int local_apic_timer_c2_ok;
+int local_apic_timer_c2_ok __ro_after_init;
EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
/*
* Debug level, exported for io_apic.c
*/
-unsigned int apic_verbosity;
+int apic_verbosity __ro_after_init;
-int pic_mode;
+int pic_mode __ro_after_init;
/* Have we found an MP table */
-int smp_found_config;
+int smp_found_config __ro_after_init;
static struct resource lapic_resource = {
.name = "Local APIC",
static void apic_pm_activate(void);
-static unsigned long apic_phys;
+static unsigned long apic_phys __ro_after_init;
/*
* Get the LAPIC version
static const struct x86_cpu_id deadline_match[] = {
DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_HASWELL_X, hsx_deadline_rev),
DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_X, 0x0b000020),
- DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_BROADWELL_XEON_D, bdx_deadline_rev),
+ DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_BROADWELL_D, bdx_deadline_rev),
DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_SKYLAKE_X, skx_deadline_rev),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_CORE, 0x22),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_ULT, 0x20),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_GT3E, 0x17),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL, 0x22),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_L, 0x20),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_G, 0x17),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_CORE, 0x25),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_GT3E, 0x17),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL, 0x25),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_G, 0x17),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_MOBILE, 0xb2),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_DESKTOP, 0xb2),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_L, 0xb2),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE, 0xb2),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_MOBILE, 0x52),
- DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_DESKTOP, 0x52),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_L, 0x52),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE, 0x52),
{},
};
static __initdata unsigned long lapic_cal_j1, lapic_cal_j2;
/*
- * Temporary interrupt handler.
+ * Temporary interrupt handler and polled calibration function.
*/
static void __init lapic_cal_handler(struct clock_event_device *dev)
{
res = (((u64)deltapm) * mult) >> 22;
do_div(res, 1000000);
- pr_warning("APIC calibration not consistent "
- "with PM-Timer: %ldms instead of 100ms\n",(long)res);
+ pr_warn("APIC calibration not consistent "
+ "with PM-Timer: %ldms instead of 100ms\n", (long)res);
/* Correct the lapic counter value */
res = (((u64)(*delta)) * pm_100ms);
if (!boot_cpu_has(X86_FEATURE_APIC))
return true;
+ /* Virt guests may lack ARAT, but still have DEADLINE */
+ if (!boot_cpu_has(X86_FEATURE_ARAT))
+ return true;
+
/* Deadline timer is based on TSC so no further PIT action required */
if (boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER))
return false;
static int __init calibrate_APIC_clock(void)
{
struct clock_event_device *levt = this_cpu_ptr(&lapic_events);
- void (*real_handler)(struct clock_event_device *dev);
+ u64 tsc_perj = 0, tsc_start = 0;
+ unsigned long jif_start;
unsigned long deltaj;
long delta, deltatsc;
int pm_referenced = 0;
apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n"
"calibrating APIC timer ...\n");
+ /*
+ * There are platforms w/o global clockevent devices. Instead of
+ * making the calibration conditional on that, use a polling based
+ * approach everywhere.
+ */
local_irq_disable();
- /* Replace the global interrupt handler */
- real_handler = global_clock_event->event_handler;
- global_clock_event->event_handler = lapic_cal_handler;
-
/*
* Setup the APIC counter to maximum. There is no way the lapic
* can underflow in the 100ms detection time frame
*/
__setup_APIC_LVTT(0xffffffff, 0, 0);
- /* Let the interrupts run */
+ /*
+ * Methods to terminate the calibration loop:
+ * 1) Global clockevent if available (jiffies)
+ * 2) TSC if available and frequency is known
+ */
+ jif_start = READ_ONCE(jiffies);
+
+ if (tsc_khz) {
+ tsc_start = rdtsc();
+ tsc_perj = div_u64((u64)tsc_khz * 1000, HZ);
+ }
+
+ /*
+ * Enable interrupts so the tick can fire, if a global
+ * clockevent device is available
+ */
local_irq_enable();
- while (lapic_cal_loops <= LAPIC_CAL_LOOPS)
- cpu_relax();
+ while (lapic_cal_loops <= LAPIC_CAL_LOOPS) {
+ /* Wait for a tick to elapse */
+ while (1) {
+ if (tsc_khz) {
+ u64 tsc_now = rdtsc();
+ if ((tsc_now - tsc_start) >= tsc_perj) {
+ tsc_start += tsc_perj;
+ break;
+ }
+ } else {
+ unsigned long jif_now = READ_ONCE(jiffies);
- local_irq_disable();
+ if (time_after(jif_now, jif_start)) {
+ jif_start = jif_now;
+ break;
+ }
+ }
+ cpu_relax();
+ }
- /* Restore the real event handler */
- global_clock_event->event_handler = real_handler;
+ /* Invoke the calibration routine */
+ local_irq_disable();
+ lapic_cal_handler(NULL);
+ local_irq_enable();
+ }
+
+ local_irq_disable();
/* Build delta t1-t2 as apic timer counts down */
delta = lapic_cal_t1 - lapic_cal_t2;
*/
if (lapic_timer_period < (1000000 / HZ)) {
local_irq_enable();
- pr_warning("APIC frequency too slow, disabling apic timer\n");
+ pr_warn("APIC frequency too slow, disabling apic timer\n");
return -1;
}
levt->features &= ~CLOCK_EVT_FEAT_DUMMY;
/*
- * PM timer calibration failed or not turned on
- * so lets try APIC timer based calibration
+ * PM timer calibration failed or not turned on so lets try APIC
+ * timer based calibration, if a global clockevent device is
+ * available.
*/
- if (!pm_referenced) {
+ if (!pm_referenced && global_clock_event) {
apic_printk(APIC_VERBOSE, "... verify APIC timer\n");
/*
local_irq_enable();
if (levt->features & CLOCK_EVT_FEAT_DUMMY) {
- pr_warning("APIC timer disabled due to verification failure\n");
+ pr_warn("APIC timer disabled due to verification failure\n");
return -1;
}
* spurious.
*/
if (!evt->event_handler) {
- pr_warning("Spurious LAPIC timer interrupt on cpu %d\n",
- smp_processor_id());
+ pr_warn("Spurious LAPIC timer interrupt on cpu %d\n",
+ smp_processor_id());
/* Switch it off */
lapic_timer_shutdown(evt);
return;
}
/**
- * disable_local_APIC - clear and disable the local APIC
+ * apic_soft_disable - Clears and software disables the local APIC on hotplug
+ *
+ * Contrary to disable_local_APIC() this does not touch the enable bit in
+ * MSR_IA32_APICBASE. Clearing that bit on systems based on the 3 wire APIC
+ * bus would require a hardware reset as the APIC would lose track of bus
+ * arbitration. On systems with FSB delivery APICBASE could be disabled,
+ * but it has to be guaranteed that no interrupt is sent to the APIC while
+ * in that state and it's not clear from the SDM whether it still responds
+ * to INIT/SIPI messages. Stay on the safe side and use software disable.
*/
-void disable_local_APIC(void)
+void apic_soft_disable(void)
{
- unsigned int value;
-
- /* APIC hasn't been mapped yet */
- if (!x2apic_mode && !apic_phys)
- return;
+ u32 value;
clear_local_APIC();
- /*
- * Disable APIC (implies clearing of registers
- * for 82489DX!).
- */
+ /* Soft disable APIC (implies clearing of registers for 82489DX!). */
value = apic_read(APIC_SPIV);
value &= ~APIC_SPIV_APIC_ENABLED;
apic_write(APIC_SPIV, value);
+}
+
+/**
+ * disable_local_APIC - clear and disable the local APIC
+ */
+void disable_local_APIC(void)
+{
+ /* APIC hasn't been mapped yet */
+ if (!x2apic_mode && !apic_phys)
+ return;
+
+ apic_soft_disable();
#ifdef CONFIG_X86_32
/*
APIC_INT_LEVELTRIG | APIC_DM_INIT);
}
-enum apic_intr_mode_id apic_intr_mode;
+enum apic_intr_mode_id apic_intr_mode __ro_after_init;
static int __init apic_intr_mode_select(void)
{
oldvalue, value);
}
-static void apic_pending_intr_clear(void)
+#define APIC_IR_REGS APIC_ISR_NR
+#define APIC_IR_BITS (APIC_IR_REGS * 32)
+#define APIC_IR_MAPSIZE (APIC_IR_BITS / BITS_PER_LONG)
+
+union apic_ir {
+ unsigned long map[APIC_IR_MAPSIZE];
+ u32 regs[APIC_IR_REGS];
+};
+
+static bool apic_check_and_ack(union apic_ir *irr, union apic_ir *isr)
{
- long long max_loops = cpu_khz ? cpu_khz : 1000000;
- unsigned long long tsc = 0, ntsc;
- unsigned int queued;
- unsigned long value;
- int i, j, acked = 0;
+ int i, bit;
+
+ /* Read the IRRs */
+ for (i = 0; i < APIC_IR_REGS; i++)
+ irr->regs[i] = apic_read(APIC_IRR + i * 0x10);
+
+ /* Read the ISRs */
+ for (i = 0; i < APIC_IR_REGS; i++)
+ isr->regs[i] = apic_read(APIC_ISR + i * 0x10);
- if (boot_cpu_has(X86_FEATURE_TSC))
- tsc = rdtsc();
/*
- * After a crash, we no longer service the interrupts and a pending
- * interrupt from previous kernel might still have ISR bit set.
- *
- * Most probably by now CPU has serviced that pending interrupt and
- * it might not have done the ack_APIC_irq() because it thought,
- * interrupt came from i8259 as ExtInt. LAPIC did not get EOI so it
- * does not clear the ISR bit and cpu thinks it has already serivced
- * the interrupt. Hence a vector might get locked. It was noticed
- * for timer irq (vector 0x31). Issue an extra EOI to clear ISR.
+ * If the ISR map is not empty. ACK the APIC and run another round
+ * to verify whether a pending IRR has been unblocked and turned
+ * into a ISR.
*/
- do {
- queued = 0;
- for (i = APIC_ISR_NR - 1; i >= 0; i--)
- queued |= apic_read(APIC_IRR + i*0x10);
-
- for (i = APIC_ISR_NR - 1; i >= 0; i--) {
- value = apic_read(APIC_ISR + i*0x10);
- for_each_set_bit(j, &value, 32) {
- ack_APIC_irq();
- acked++;
- }
- }
- if (acked > 256) {
- pr_err("LAPIC pending interrupts after %d EOI\n", acked);
- break;
- }
- if (queued) {
- if (boot_cpu_has(X86_FEATURE_TSC) && cpu_khz) {
- ntsc = rdtsc();
- max_loops = (long long)cpu_khz << 10;
- max_loops -= ntsc - tsc;
- } else {
- max_loops--;
- }
- }
- } while (queued && max_loops > 0);
- WARN_ON(max_loops <= 0);
+ if (!bitmap_empty(isr->map, APIC_IR_BITS)) {
+ /*
+ * There can be multiple ISR bits set when a high priority
+ * interrupt preempted a lower priority one. Issue an ACK
+ * per set bit.
+ */
+ for_each_set_bit(bit, isr->map, APIC_IR_BITS)
+ ack_APIC_irq();
+ return true;
+ }
+
+ return !bitmap_empty(irr->map, APIC_IR_BITS);
+}
+
+/*
+ * After a crash, we no longer service the interrupts and a pending
+ * interrupt from previous kernel might still have ISR bit set.
+ *
+ * Most probably by now the CPU has serviced that pending interrupt and it
+ * might not have done the ack_APIC_irq() because it thought, interrupt
+ * came from i8259 as ExtInt. LAPIC did not get EOI so it does not clear
+ * the ISR bit and cpu thinks it has already serivced the interrupt. Hence
+ * a vector might get locked. It was noticed for timer irq (vector
+ * 0x31). Issue an extra EOI to clear ISR.
+ *
+ * If there are pending IRR bits they turn into ISR bits after a higher
+ * priority ISR bit has been acked.
+ */
+static void apic_pending_intr_clear(void)
+{
+ union apic_ir irr, isr;
+ unsigned int i;
+
+ /* 512 loops are way oversized and give the APIC a chance to obey. */
+ for (i = 0; i < 512; i++) {
+ if (!apic_check_and_ack(&irr, &isr))
+ return;
+ }
+ /* Dump the IRR/ISR content if that failed */
+ pr_warn("APIC: Stale IRR: %256pb ISR: %256pb\n", irr.map, isr.map);
}
/**
{
int cpu = smp_processor_id();
unsigned int value;
-#ifdef CONFIG_X86_32
- int logical_apicid, ldr_apicid;
-#endif
-
if (disable_apic) {
disable_ioapic_support();
return;
}
+ /*
+ * If this comes from kexec/kcrash the APIC might be enabled in
+ * SPIV. Soft disable it before doing further initialization.
+ */
+ value = apic_read(APIC_SPIV);
+ value &= ~APIC_SPIV_APIC_ENABLED;
+ apic_write(APIC_SPIV, value);
+
#ifdef CONFIG_X86_32
/* Pound the ESR really hard over the head with a big hammer - mbligh */
if (lapic_is_integrated() && apic->disable_esr) {
apic_write(APIC_ESR, 0);
}
#endif
- perf_events_lapic_init();
-
/*
* Double-check whether this APIC is really registered.
* This is meaningless in clustered apic mode, so we skip it.
apic->init_apic_ldr();
#ifdef CONFIG_X86_32
- /*
- * APIC LDR is initialized. If logical_apicid mapping was
- * initialized during get_smp_config(), make sure it matches the
- * actual value.
- */
- logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
- ldr_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
- WARN_ON(logical_apicid != BAD_APICID && logical_apicid != ldr_apicid);
- /* always use the value from LDR */
- early_per_cpu(x86_cpu_to_logical_apicid, cpu) = ldr_apicid;
+ if (apic->dest_logical) {
+ int logical_apicid, ldr_apicid;
+
+ /*
+ * APIC LDR is initialized. If logical_apicid mapping was
+ * initialized during get_smp_config(), make sure it matches
+ * the actual value.
+ */
+ logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
+ ldr_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
+ if (logical_apicid != BAD_APICID)
+ WARN_ON(logical_apicid != ldr_apicid);
+ /* Always use the value from LDR. */
+ early_per_cpu(x86_cpu_to_logical_apicid, cpu) = ldr_apicid;
+ }
#endif
/*
- * Set Task Priority to 'accept all'. We never change this
- * later on.
+ * Set Task Priority to 'accept all except vectors 0-31'. An APIC
+ * vector in the 16-31 range could be delivered if TPR == 0, but we
+ * would think it's an exception and terrible things will happen. We
+ * never change this later on.
*/
value = apic_read(APIC_TASKPRI);
value &= ~APIC_TPRI_MASK;
+ value |= 0x10;
apic_write(APIC_TASKPRI, value);
+ /* Clear eventually stale ISR/IRR bits */
apic_pending_intr_clear();
/*
value |= SPURIOUS_APIC_VECTOR;
apic_write(APIC_SPIV, value);
+ perf_events_lapic_init();
+
/*
* Set up LVT0, LVT1:
*
int apicid = native_apic_msr_read(APIC_ID);
if (apicid >= 255) {
- pr_warning("Apicid: %08x, cannot enforce nox2apic\n",
- apicid);
+ pr_warn("Apicid: %08x, cannot enforce nox2apic\n",
+ apicid);
return 0;
}
- pr_warning("x2apic already enabled.\n");
+ pr_warn("x2apic already enabled.\n");
__x2apic_disable();
}
setup_clear_cpu_cap(X86_FEATURE_X2APIC);
*/
features = cpuid_edx(1);
if (!(features & (1 << X86_FEATURE_APIC))) {
- pr_warning("Could not enable APIC!\n");
+ pr_warn("Could not enable APIC!\n");
return -1;
}
set_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
disabled_cpu_apicid == apicid) {
int thiscpu = num_processors + disabled_cpus;
- pr_warning("APIC: Disabling requested cpu."
- " Processor %d/0x%x ignored.\n",
- thiscpu, apicid);
+ pr_warn("APIC: Disabling requested cpu."
+ " Processor %d/0x%x ignored.\n", thiscpu, apicid);
disabled_cpus++;
return -ENODEV;
apicid != boot_cpu_physical_apicid) {
int thiscpu = max + disabled_cpus - 1;
- pr_warning(
- "APIC: NR_CPUS/possible_cpus limit of %i almost"
+ pr_warn("APIC: NR_CPUS/possible_cpus limit of %i almost"
" reached. Keeping one slot for boot cpu."
" Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
if (num_processors >= nr_cpu_ids) {
int thiscpu = max + disabled_cpus;
- pr_warning("APIC: NR_CPUS/possible_cpus limit of %i "
- "reached. Processor %d/0x%x ignored.\n",
- max, thiscpu, apicid);
+ pr_warn("APIC: NR_CPUS/possible_cpus limit of %i reached. "
+ "Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
disabled_cpus++;
return -EINVAL;
* Validate version
*/
if (version == 0x0) {
- pr_warning("BIOS bug: APIC version is 0 for CPU %d/0x%x, fixing up to 0x10\n",
- cpu, apicid);
+ pr_warn("BIOS bug: APIC version is 0 for CPU %d/0x%x, fixing up to 0x10\n",
+ cpu, apicid);
version = 0x10;
}
if (version != boot_cpu_apic_version) {
- pr_warning("BIOS bug: APIC version mismatch, boot CPU: %x, CPU %d: version %x\n",
+ pr_warn("BIOS bug: APIC version mismatch, boot CPU: %x, CPU %d: version %x\n",
boot_cpu_apic_version, cpu, version);
}
apic_verbosity = APIC_VERBOSE;
#ifdef CONFIG_X86_64
else {
- pr_warning("APIC Verbosity level %s not recognised"
+ pr_warn("APIC Verbosity level %s not recognised"
" use apic=verbose or apic=debug\n", arg);
return -EINVAL;
}
/** DOC: Emulation for User-Mode Instruction Prevention (UMIP)
*
* The feature User-Mode Instruction Prevention present in recent Intel
- * processor prevents a group of instructions (sgdt, sidt, sldt, smsw, and str)
+ * processor prevents a group of instructions (SGDT, SIDT, SLDT, SMSW and STR)
* from being executed with CPL > 0. Otherwise, a general protection fault is
* issued.
*
* DOSEMU2) rely on this subset of instructions to function.
*
* The instructions protected by UMIP can be split in two groups. Those which
- * return a kernel memory address (sgdt and sidt) and those which return a
- * value (sldt, str and smsw).
+ * return a kernel memory address (SGDT and SIDT) and those which return a
+ * value (SLDT, STR and SMSW).
*
* For the instructions that return a kernel memory address, applications
* such as WineHQ rely on the result being located in the kernel memory space,
* value that, lies close to the top of the kernel memory. The limit for the GDT
* and the IDT are set to zero.
*
- * Given that sldt and str are not commonly used in programs that run on WineHQ
+ * Given that SLDT and STR are not commonly used in programs that run on WineHQ
* or DOSEMU2, they are not emulated.
*
* The instruction smsw is emulated to return the value that the register CR0
* has at boot time as set in the head_32.
*
- * Also, emulation is provided only for 32-bit processes; 64-bit processes
- * that attempt to use the instructions that UMIP protects will receive the
- * SIGSEGV signal issued as a consequence of the general protection fault.
+ * Emulation is provided for both 32-bit and 64-bit processes.
*
* Care is taken to appropriately emulate the results when segmentation is
* used. That is, rather than relying on USER_DS and USER_CS, the function
* application uses a local descriptor table.
*/
-#define UMIP_DUMMY_GDT_BASE 0xfffe0000
-#define UMIP_DUMMY_IDT_BASE 0xffff0000
+#define UMIP_DUMMY_GDT_BASE 0xfffffffffffe0000ULL
+#define UMIP_DUMMY_IDT_BASE 0xffffffffffff0000ULL
/*
* The SGDT and SIDT instructions store the contents of the global descriptor
* table and interrupt table registers, respectively. The destination is a
* memory operand of X+2 bytes. X bytes are used to store the base address of
- * the table and 2 bytes are used to store the limit. In 32-bit processes, the
- * only processes for which emulation is provided, X has a value of 4.
+ * the table and 2 bytes are used to store the limit. In 32-bit processes X
+ * has a value of 4, in 64-bit processes X has a value of 8.
*/
-#define UMIP_GDT_IDT_BASE_SIZE 4
+#define UMIP_GDT_IDT_BASE_SIZE_64BIT 8
+#define UMIP_GDT_IDT_BASE_SIZE_32BIT 4
#define UMIP_GDT_IDT_LIMIT_SIZE 2
#define UMIP_INST_SGDT 0 /* 0F 01 /0 */
#define umip_pr_err(regs, fmt, ...) \
umip_printk(regs, KERN_ERR, fmt, ##__VA_ARGS__)
- #define umip_pr_warning(regs, fmt, ...) \
+ #define umip_pr_warn(regs, fmt, ...) \
umip_printk(regs, KERN_WARNING, fmt, ##__VA_ARGS__)
/**
* @umip_inst: A constant indicating the instruction to emulate
* @data: Buffer into which the dummy result is stored
* @data_size: Size of the emulated result
+ * @x86_64: true if process is 64-bit, false otherwise
*
* Emulate an instruction protected by UMIP and provide a dummy result. The
* result of the emulation is saved in @data. The size of the results depends
* 0 on success, -EINVAL on error while emulating.
*/
static int emulate_umip_insn(struct insn *insn, int umip_inst,
- unsigned char *data, int *data_size)
+ unsigned char *data, int *data_size, bool x86_64)
{
- unsigned long dummy_base_addr, dummy_value;
- unsigned short dummy_limit = 0;
-
if (!data || !data_size || !insn)
return -EINVAL;
/*
* is always returned irrespective of the operand size.
*/
if (umip_inst == UMIP_INST_SGDT || umip_inst == UMIP_INST_SIDT) {
+ u64 dummy_base_addr;
+ u16 dummy_limit = 0;
+
/* SGDT and SIDT do not use registers operands. */
if (X86_MODRM_MOD(insn->modrm.value) == 3)
return -EINVAL;
else
dummy_base_addr = UMIP_DUMMY_IDT_BASE;
- *data_size = UMIP_GDT_IDT_LIMIT_SIZE + UMIP_GDT_IDT_BASE_SIZE;
+ /*
+ * 64-bit processes use the entire dummy base address.
+ * 32-bit processes use the lower 32 bits of the base address.
+ * dummy_base_addr is always 64 bits, but we memcpy the correct
+ * number of bytes from it to the destination.
+ */
+ if (x86_64)
+ *data_size = UMIP_GDT_IDT_BASE_SIZE_64BIT;
+ else
+ *data_size = UMIP_GDT_IDT_BASE_SIZE_32BIT;
+
+ memcpy(data + 2, &dummy_base_addr, *data_size);
- memcpy(data + 2, &dummy_base_addr, UMIP_GDT_IDT_BASE_SIZE);
+ *data_size += UMIP_GDT_IDT_LIMIT_SIZE;
memcpy(data, &dummy_limit, UMIP_GDT_IDT_LIMIT_SIZE);
} else if (umip_inst == UMIP_INST_SMSW) {
- dummy_value = CR0_STATE;
+ unsigned long dummy_value = CR0_STATE;
/*
* Even though the CR0 register has 4 bytes, the number
* fixup_umip_exception() - Fixup a general protection fault caused by UMIP
* @regs: Registers as saved when entering the #GP handler
*
- * The instructions sgdt, sidt, str, smsw, sldt cause a general protection
- * fault if executed with CPL > 0 (i.e., from user space). If the offending
- * user-space process is not in long mode, this function fixes the exception
- * up and provides dummy results for sgdt, sidt and smsw; str and sldt are not
- * fixed up. Also long mode user-space processes are not fixed up.
+ * The instructions SGDT, SIDT, STR, SMSW and SLDT cause a general protection
+ * fault if executed with CPL > 0 (i.e., from user space). This function fixes
+ * the exception up and provides dummy results for SGDT, SIDT and SMSW; STR
+ * and SLDT are not fixed up.
*
* If operands are memory addresses, results are copied to user-space memory as
* indicated by the instruction pointed by eIP using the registers indicated in
if (umip_inst < 0)
return false;
- umip_pr_warning(regs, "%s instruction cannot be used by applications.\n",
+ umip_pr_warn(regs, "%s instruction cannot be used by applications.\n",
umip_insns[umip_inst]);
- /* Do not emulate SLDT, STR or user long mode processes. */
- if (umip_inst == UMIP_INST_STR || umip_inst == UMIP_INST_SLDT || user_64bit_mode(regs))
+ /* Do not emulate (spoof) SLDT or STR. */
+ if (umip_inst == UMIP_INST_STR || umip_inst == UMIP_INST_SLDT)
return false;
- umip_pr_warning(regs, "For now, expensive software emulation returns the result.\n");
+ umip_pr_warn(regs, "For now, expensive software emulation returns the result.\n");
- if (emulate_umip_insn(&insn, umip_inst, dummy_data, &dummy_data_size))
+ if (emulate_umip_insn(&insn, umip_inst, dummy_data, &dummy_data_size,
+ user_64bit_mode(regs)))
return false;
/*
#include <linux/module.h>
#include <linux/io.h>
#include <linux/mmiotrace.h>
+#include <linux/security.h>
static unsigned long mmio_address;
module_param_hw(mmio_address, ulong, iomem, 0);
static int __init init(void)
{
unsigned long size = (read_far) ? (8 << 20) : (16 << 10);
+ int ret = security_locked_down(LOCKDOWN_MMIOTRACE);
+
+ if (ret)
+ return ret;
if (mmio_address == 0) {
pr_err("you have to use the module argument mmio_address.\n");
return -ENXIO;
}
- pr_warning("WARNING: mapping %lu kB @ 0x%08lx in PCI address space, "
- "and writing 16 kB of rubbish in there.\n",
- size >> 10, mmio_address);
+ pr_warn("WARNING: mapping %lu kB @ 0x%08lx in PCI address space, "
+ "and writing 16 kB of rubbish in there.\n",
+ size >> 10, mmio_address);
do_test(size);
do_test_bulk_ioremapping();
pr_info("All done.\n");
int ghes_estatus_pool_init(int num_ghes)
{
unsigned long addr, len;
+ int rc;
ghes_estatus_pool = gen_pool_create(GHES_ESTATUS_POOL_MIN_ALLOC_ORDER, -1);
if (!ghes_estatus_pool)
ghes_estatus_pool_size_request = PAGE_ALIGN(len);
addr = (unsigned long)vmalloc(PAGE_ALIGN(len));
if (!addr)
- return -ENOMEM;
+ goto err_pool_alloc;
/*
* New allocation must be visible in all pgd before it can be found by
*/
vmalloc_sync_all();
- return gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+ rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+ if (rc)
+ goto err_pool_add;
+
+ return 0;
+
+err_pool_add:
+ vfree((void *)addr);
+
+err_pool_alloc:
+ gen_pool_destroy(ghes_estatus_pool);
+
+ return -ENOMEM;
}
static int map_gen_v2(struct ghes *ghes)
goto err_unmap_read_ack_addr;
error_block_length = generic->error_block_length;
if (error_block_length > GHES_ESTATUS_MAX_SIZE) {
- pr_warning(FW_WARN GHES_PFX
- "Error status block length is too long: %u for "
- "generic hardware error source: %d.\n",
- error_block_length, generic->header.source_id);
+ pr_warn(FW_WARN GHES_PFX
+ "Error status block length is too long: %u for "
+ "generic hardware error source: %d.\n",
+ error_block_length, generic->header.source_id);
error_block_length = GHES_ESTATUS_MAX_SIZE;
}
ghes->estatus = kmalloc(error_block_length, GFP_KERNEL);
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
guid_t *sec_type;
- guid_t *fru_id = &NULL_UUID_LE;
+ const guid_t *fru_id = &guid_null;
char *fru_text = "";
sev = ghes_severity(estatus->error_severity);
unsigned long expire;
if (!g->notify.poll_interval) {
- pr_warning(FW_WARN GHES_PFX "Poll interval is 0 for generic hardware error source: %d, disabled.\n",
- g->header.source_id);
+ pr_warn(FW_WARN GHES_PFX "Poll interval is 0 for generic hardware error source: %d, disabled.\n",
+ g->header.source_id);
return;
}
expire = jiffies + msecs_to_jiffies(g->notify.poll_interval);
}
break;
case ACPI_HEST_NOTIFY_LOCAL:
- pr_warning(GHES_PFX "Generic hardware error source: %d notified via local interrupt is not supported!\n",
- generic->header.source_id);
+ pr_warn(GHES_PFX "Generic hardware error source: %d notified via local interrupt is not supported!\n",
+ generic->header.source_id);
goto err;
default:
- pr_warning(FW_WARN GHES_PFX "Unknown notification type: %u for generic hardware error source: %d\n",
- generic->notify.type, generic->header.source_id);
+ pr_warn(FW_WARN GHES_PFX "Unknown notification type: %u for generic hardware error source: %d\n",
+ generic->notify.type, generic->header.source_id);
goto err;
}
rc = -EIO;
if (generic->error_block_length <
sizeof(struct acpi_hest_generic_status)) {
- pr_warning(FW_BUG GHES_PFX "Invalid error block length: %u for generic hardware error source: %d\n",
- generic->error_block_length,
- generic->header.source_id);
+ pr_warn(FW_BUG GHES_PFX "Invalid error block length: %u for generic hardware error source: %d\n",
+ generic->error_block_length, generic->header.source_id);
goto err;
}
ghes = ghes_new(generic);
#include <crypto/md5.h>
#include <crypto/sha.h>
#include <crypto/aes.h>
-#include <crypto/des.h>
+#include <crypto/internal/des.h>
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/sched.h>
fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0,
CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(fallback_tfm)) {
- pr_warning("Fallback driver '%s' could not be loaded!\n",
- fallback_driver_name);
+ pr_warn("Fallback driver '%s' could not be loaded!\n",
+ fallback_driver_name);
err = PTR_ERR(fallback_tfm);
goto out;
}
fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0,
CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(fallback_tfm)) {
- pr_warning("Fallback driver '%s' could not be loaded!\n",
- fallback_driver_name);
+ pr_warn("Fallback driver '%s' could not be loaded!\n",
+ fallback_driver_name);
err = PTR_ERR(fallback_tfm);
goto out;
}
child_shash = crypto_alloc_shash(n2alg->child_alg, 0, 0);
if (IS_ERR(child_shash)) {
- pr_warning("Child shash '%s' could not be loaded!\n",
- n2alg->child_alg);
+ pr_warn("Child shash '%s' could not be loaded!\n",
+ n2alg->child_alg);
err = PTR_ERR(child_shash);
goto out_free_fallback;
}
struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
- u32 tmp[DES_EXPKEY_WORDS];
int err;
- ctx->enc_type = n2alg->enc_type;
-
- if (keylen != DES_KEY_SIZE) {
- crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
+ err = verify_ablkcipher_des_key(cipher, key);
+ if (err)
+ return err;
- err = des_ekey(tmp, key);
- if (err == 0 && (tfm->crt_flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
- tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
- return -EINVAL;
- }
+ ctx->enc_type = n2alg->enc_type;
ctx->key_len = keylen;
memcpy(ctx->key.des, key, keylen);
struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
- u32 flags;
int err;
- flags = crypto_ablkcipher_get_flags(cipher);
- err = __des3_verify_key(&flags, key);
- if (unlikely(err)) {
- crypto_ablkcipher_set_flags(cipher, flags);
+ err = verify_ablkcipher_des3_key(cipher, key);
+ if (err)
return err;
- }
ctx->enc_type = n2alg->enc_type;
u8 hmac_type;
};
-static const u32 md5_init[MD5_HASH_WORDS] = {
+static const u32 n2_md5_init[MD5_HASH_WORDS] = {
cpu_to_le32(MD5_H0),
cpu_to_le32(MD5_H1),
cpu_to_le32(MD5_H2),
cpu_to_le32(MD5_H3),
};
-static const u32 sha1_init[SHA1_DIGEST_SIZE / 4] = {
+static const u32 n2_sha1_init[SHA1_DIGEST_SIZE / 4] = {
SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4,
};
-static const u32 sha256_init[SHA256_DIGEST_SIZE / 4] = {
+static const u32 n2_sha256_init[SHA256_DIGEST_SIZE / 4] = {
SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3,
SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7,
};
-static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = {
+static const u32 n2_sha224_init[SHA256_DIGEST_SIZE / 4] = {
SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3,
SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7,
};
static const struct n2_hash_tmpl hash_tmpls[] = {
{ .name = "md5",
.hash_zero = md5_zero_message_hash,
- .hash_init = md5_init,
+ .hash_init = n2_md5_init,
.auth_type = AUTH_TYPE_MD5,
.hmac_type = AUTH_TYPE_HMAC_MD5,
.hw_op_hashsz = MD5_DIGEST_SIZE,
.block_size = MD5_HMAC_BLOCK_SIZE },
{ .name = "sha1",
.hash_zero = sha1_zero_message_hash,
- .hash_init = sha1_init,
+ .hash_init = n2_sha1_init,
.auth_type = AUTH_TYPE_SHA1,
.hmac_type = AUTH_TYPE_HMAC_SHA1,
.hw_op_hashsz = SHA1_DIGEST_SIZE,
.block_size = SHA1_BLOCK_SIZE },
{ .name = "sha256",
.hash_zero = sha256_zero_message_hash,
- .hash_init = sha256_init,
+ .hash_init = n2_sha256_init,
.auth_type = AUTH_TYPE_SHA256,
.hmac_type = AUTH_TYPE_HMAC_SHA256,
.hw_op_hashsz = SHA256_DIGEST_SIZE,
.block_size = SHA256_BLOCK_SIZE },
{ .name = "sha224",
.hash_zero = sha224_zero_message_hash,
- .hash_init = sha224_init,
+ .hash_init = n2_sha224_init,
.auth_type = AUTH_TYPE_SHA256,
.hmac_type = AUTH_TYPE_RESERVED,
.hw_op_hashsz = SHA256_DIGEST_SIZE,
} else {
cnt = bchannel_get_rxbuf(bch, count);
if (cnt < 0) {
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- fc->name, bch->nr, count);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ fc->name, bch->nr, count);
return;
}
p = skb_put(bch->rx_skb, count);
if (bch->tx_skb && bch->tx_idx < bch->tx_skb->len) {
hdlc_fill_fifo(bch);
} else {
- if (bch->tx_skb)
- dev_kfree_skb(bch->tx_skb);
+ dev_kfree_skb(bch->tx_skb);
if (get_next_bframe(bch)) {
hdlc_fill_fifo(bch);
test_and_clear_bit(FLG_TX_EMPTY, &bch->Flags);
}
if (stat & HDLC_INT_RPR) {
if (stat & HDLC_STAT_RDO) {
- pr_warning("%s: ch%d stat %x RDO\n",
- fc->name, bch->nr, stat);
+ pr_warn("%s: ch%d stat %x RDO\n",
+ fc->name, bch->nr, stat);
hdlc->ctrl.sr.xml = 0;
hdlc->ctrl.sr.cmd |= HDLC_CMD_RRS;
write_ctrl(bch, 1);
HDLC_STAT_CRCVFR) {
recv_Bchannel(bch, 0, false);
} else {
- pr_warning("%s: got invalid frame\n",
- fc->name);
+ pr_warn("%s: got invalid frame\n",
+ fc->name);
skb_trim(bch->rx_skb, 0);
}
}
* restart transmitting the whole frame on HDLC
* in transparent mode we send the next data
*/
- pr_warning("%s: ch%d stat %x XDU %s\n", fc->name, bch->nr,
- stat, bch->tx_skb ? "tx_skb" : "no tx_skb");
+ pr_warn("%s: ch%d stat %x XDU %s\n", fc->name, bch->nr,
+ stat, bch->tx_skb ? "tx_skb" : "no tx_skb");
if (bch->tx_skb && bch->tx_skb->len) {
if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
bch->tx_idx = 0;
}
maxlen = bchannel_get_rxbuf(bch, fcnt_rx);
if (maxlen < 0) {
- pr_warning("B%d: No bufferspace for %d bytes\n",
- bch->nr, fcnt_rx);
+ pr_warn("B%d: No bufferspace for %d bytes\n", bch->nr, fcnt_rx);
} else {
ptr = skb_put(bch->rx_skb, fcnt_rx);
if (le16_to_cpu(*z2r) + fcnt_rx <= B_FIFO_SIZE + B_SUB_VAL)
if (bch->tx_skb && bch->tx_idx < bch->tx_skb->len)
hfcpci_fill_fifo(bch);
else {
- if (bch->tx_skb)
- dev_kfree_skb(bch->tx_skb);
+ dev_kfree_skb(bch->tx_skb);
if (get_next_bframe(bch))
hfcpci_fill_fifo(bch);
}
if (dch->tx_skb && dch->tx_idx < dch->tx_skb->len)
hfcpci_fill_dfifo(dch->hw);
else {
- if (dch->tx_skb)
- dev_kfree_skb(dch->tx_skb);
+ dev_kfree_skb(dch->tx_skb);
if (get_next_dframe(dch))
hfcpci_fill_dfifo(dch->hw);
}
if (maxlen < 0) {
if (rx_skb)
skb_trim(rx_skb, 0);
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- hw->name, fifo->bch->nr, len);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ hw->name, fifo->bch->nr, len);
spin_unlock_irqrestore(&hw->lock, flags);
return;
}
printk(KERN_DEBUG
"%s: %s: alloc urb for fifo %i failed",
hw->name, __func__, fifo->fifonum);
+ continue;
}
fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
fifo->iso[i].indx = i;
static int
setup_hfcsusb(struct hfcsusb *hw)
{
+ void *dmabuf = kmalloc(sizeof(u_char), GFP_KERNEL);
u_char b;
+ int ret;
if (debug & DBG_HFC_CALL_TRACE)
printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
+ if (!dmabuf)
+ return -ENOMEM;
+
+ ret = read_reg_atomic(hw, HFCUSB_CHIP_ID, dmabuf);
+
+ memcpy(&b, dmabuf, sizeof(u_char));
+ kfree(dmabuf);
+
/* check the chip id */
- if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) {
+ if (ret != 1) {
printk(KERN_DEBUG "%s: %s: cannot read chip id\n",
hw->name, __func__);
return 1;
/* get endpoint base */
idx = ((ep_addr & 0x7f) - 1) * 2;
+ if (idx > 15)
+ return -EIO;
+
if (ep_addr & 0x80)
idx++;
attr = ep->desc.bmAttributes;
#endif
}
WriteISAC(isac, ISAC_CMDR, 0x80);
- if (isac->dch.rx_skb)
- dev_kfree_skb(isac->dch.rx_skb);
+ dev_kfree_skb(isac->dch.rx_skb);
isac->dch.rx_skb = NULL;
} else {
count = ReadISAC(isac, ISAC_RBCL) & 0x1f;
if (isac->dch.tx_skb && isac->dch.tx_idx < isac->dch.tx_skb->len) {
isac_fill_fifo(isac);
} else {
- if (isac->dch.tx_skb)
- dev_kfree_skb(isac->dch.tx_skb);
+ dev_kfree_skb(isac->dch.tx_skb);
if (get_next_dframe(&isac->dch))
isac_fill_fifo(isac);
}
isac->dch.err_crc++;
#endif
WriteISAC(isac, ISACX_CMDRD, ISACX_CMDRD_RMC);
- if (isac->dch.rx_skb)
- dev_kfree_skb(isac->dch.rx_skb);
+ dev_kfree_skb(isac->dch.rx_skb);
isac->dch.rx_skb = NULL;
} else {
count = ReadISAC(isac, ISACX_RBCLD) & 0x1f;
hscx_cmdr(hscx, 0x80); /* RMC */
if (hscx->bch.rx_skb)
skb_trim(hscx->bch.rx_skb, 0);
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- hscx->ip->name, hscx->bch.nr, count);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ hscx->ip->name, hscx->bch.nr, count);
return;
}
p = skb_put(hscx->bch.rx_skb, count);
if (hx->bch.tx_skb && hx->bch.tx_idx < hx->bch.tx_skb->len) {
hscx_fill_fifo(hx);
} else {
- if (hx->bch.tx_skb)
- dev_kfree_skb(hx->bch.tx_skb);
+ dev_kfree_skb(hx->bch.tx_skb);
if (get_next_bframe(&hx->bch)) {
hscx_fill_fifo(hx);
test_and_clear_bit(FLG_TX_EMPTY, &hx->bch.Flags);
goto reterror;
}
if (!poll_mbox(isar, 1000)) {
- pr_warning("ISAR poll_mbox dkey failed\n");
+ pr_warn("ISAR poll_mbox dkey failed\n");
ret = -ETIME;
goto reterror;
}
case ISDN_P_B_MODEM_ASYNC:
maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
if (maxlen < 0) {
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- ch->is->name, ch->bch.nr, ch->is->clsb);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ ch->is->name, ch->bch.nr, ch->is->clsb);
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
break;
}
case ISDN_P_B_HDLC:
maxlen = bchannel_get_rxbuf(&ch->bch, ch->is->clsb);
if (maxlen < 0) {
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- ch->is->name, ch->bch.nr, ch->is->clsb);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ ch->is->name, ch->bch.nr, ch->is->clsb);
ch->is->write_reg(ch->is->hw, ISAR_IIA, 0);
break;
}
}
}
}
- if (ch->bch.tx_skb)
- dev_kfree_skb(ch->bch.tx_skb);
+ dev_kfree_skb(ch->bch.tx_skb);
if (get_next_bframe(&ch->bch)) {
isar_fill_fifo(ch);
test_and_clear_bit(FLG_TX_EMPTY, &ch->bch.Flags);
#include "ipac.h"
#include "iohelper.h"
#include "netjet.h"
-#include <linux/isdn/hdlc.h>
+#include "isdnhdlc.h"
#define NETJET_REV "2.0"
stat = bchannel_get_rxbuf(&bc->bch, cnt);
/* only transparent use the count here, HDLC overun is detected later */
if (stat == -ENOMEM) {
- pr_warning("%s.B%d: No memory for %d bytes\n",
- card->name, bc->bch.nr, cnt);
+ pr_warn("%s.B%d: No memory for %d bytes\n",
+ card->name, bc->bch.nr, cnt);
return;
}
if (test_bit(FLG_TRANSPARENT, &bc->bch.Flags))
recv_Bchannel(&bc->bch, 0, false);
stat = bchannel_get_rxbuf(&bc->bch, bc->bch.maxlen);
if (stat < 0) {
- pr_warning("%s.B%d: No memory for %d bytes\n",
- card->name, bc->bch.nr, cnt);
+ pr_warn("%s.B%d: No memory for %d bytes\n",
+ card->name, bc->bch.nr, cnt);
return;
}
} else if (stat == -HDLC_CRC_ERROR) {
if (bc->bch.tx_skb && bc->bch.tx_idx < bc->bch.tx_skb->len) {
fill_dma(bc);
} else {
- if (bc->bch.tx_skb)
- dev_kfree_skb(bc->bch.tx_skb);
+ dev_kfree_skb(bc->bch.tx_skb);
if (get_next_bframe(&bc->bch)) {
fill_dma(bc);
test_and_clear_bit(FLG_TX_EMPTY, &bc->bch.Flags);
card->dch.err_rx++;
#endif
}
- if (card->dch.rx_skb)
- dev_kfree_skb(card->dch.rx_skb);
+ dev_kfree_skb(card->dch.rx_skb);
card->dch.rx_skb = NULL;
WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
} else {
if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) {
W6692_fill_Dfifo(card);
} else {
- if (card->dch.tx_skb)
- dev_kfree_skb(card->dch.tx_skb);
+ dev_kfree_skb(card->dch.tx_skb);
if (get_next_dframe(&card->dch))
W6692_fill_Dfifo(card);
}
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
if (wch->bch.rx_skb)
skb_trim(wch->bch.rx_skb, 0);
- pr_warning("%s.B%d: No bufferspace for %d bytes\n",
- card->name, wch->bch.nr, count);
+ pr_warn("%s.B%d: No bufferspace for %d bytes\n",
+ card->name, wch->bch.nr, count);
return;
}
ptr = skb_put(wch->bch.rx_skb, count);
if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len) {
W6692_fill_Bfifo(wch);
} else {
- if (wch->bch.tx_skb)
- dev_kfree_skb(wch->bch.tx_skb);
+ dev_kfree_skb(wch->bch.tx_skb);
if (get_next_bframe(&wch->bch)) {
W6692_fill_Bfifo(wch);
test_and_clear_bit(FLG_TX_EMPTY, &wch->bch.Flags);
wch->bch.nr, star);
}
if (star & W_B_STAR_XDOW) {
- pr_warning("%s: B%d XDOW proto=%x\n", card->name,
- wch->bch.nr, wch->bch.state);
+ pr_warn("%s: B%d XDOW proto=%x\n", card->name,
+ wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_xdu++;
#endif
return; /* handle XDOW only once */
}
if (stat & W_B_EXI_XDUN) {
- pr_warning("%s: B%d XDUN proto=%x\n", card->name,
- wch->bch.nr, wch->bch.state);
+ pr_warn("%s: B%d XDUN proto=%x\n", card->name,
+ wch->bch.nr, wch->bch.state);
#ifdef ERROR_STATISTIC
wch->bch.err_xdu++;
#endif
#include <linux/debugfs.h>
#include <linux/serial_core.h>
#include <linux/sysfs.h>
+#include <linux/random.h>
#include <asm/setup.h> /* for COMMAND_LINE_SIZE */
#include <asm/page.h>
* memory entries in the /memory node. This function may be called
* any time after initial_boot_param is set.
*/
-void of_fdt_limit_memory(int limit)
+void __init of_fdt_limit_memory(int limit)
{
int memory;
int len;
}
}
-/**
- * of_fdt_is_compatible - Return true if given node from the given blob has
- * compat in its compatible list
- * @blob: A device tree blob
- * @node: node to test
- * @compat: compatible string to compare with compatible list.
- *
- * On match, returns a non-zero value with smaller values returned for more
- * specific compatible values.
- */
-static int of_fdt_is_compatible(const void *blob,
- unsigned long node, const char *compat)
-{
- const char *cp;
- int cplen;
- unsigned long l, score = 0;
-
- cp = fdt_getprop(blob, node, "compatible", &cplen);
- if (cp == NULL)
- return 0;
- while (cplen > 0) {
- score++;
- if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
- return score;
- l = strlen(cp) + 1;
- cp += l;
- cplen -= l;
- }
-
- return 0;
-}
-
-/**
- * of_fdt_is_big_endian - Return true if given node needs BE MMIO accesses
- * @blob: A device tree blob
- * @node: node to test
- *
- * Returns true if the node has a "big-endian" property, or if the kernel
- * was compiled for BE *and* the node has a "native-endian" property.
- * Returns false otherwise.
- */
-bool of_fdt_is_big_endian(const void *blob, unsigned long node)
-{
- if (fdt_getprop(blob, node, "big-endian", NULL))
- return true;
- if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) &&
- fdt_getprop(blob, node, "native-endian", NULL))
- return true;
- return false;
-}
-
static bool of_fdt_device_is_available(const void *blob, unsigned long node)
{
const char *status = fdt_getprop(blob, node, "status", NULL);
return false;
}
-/**
- * of_fdt_match - Return true if node matches a list of compatible values
- */
-int of_fdt_match(const void *blob, unsigned long node,
- const char *const *compat)
-{
- unsigned int tmp, score = 0;
-
- if (!compat)
- return 0;
-
- while (*compat) {
- tmp = of_fdt_is_compatible(blob, node, *compat);
- if (tmp && (score == 0 || (tmp < score)))
- score = tmp;
- compat++;
- }
-
- return score;
-}
-
static void *unflatten_dt_alloc(void **mem, unsigned long size,
unsigned long align)
{
/* Second pass, do actual unflattening */
unflatten_dt_nodes(blob, mem, dad, mynodes);
if (be32_to_cpup(mem + size) != 0xdeadbeef)
- pr_warning("End of tree marker overwritten: %08x\n",
- be32_to_cpup(mem + size));
+ pr_warn("End of tree marker overwritten: %08x\n",
+ be32_to_cpup(mem + size));
if (detached && mynodes) {
of_node_set_flag(*mynodes, OF_DETACHED);
int __initdata dt_root_addr_cells;
int __initdata dt_root_size_cells;
-void *initial_boot_params;
+void *initial_boot_params __ro_after_init;
#ifdef CONFIG_OF_EARLY_FLATTREE
phys_addr_t base, size;
int len;
const __be32 *prop;
- int nomap, first = 1;
+ int first = 1;
+ bool nomap;
prop = of_get_flat_dt_prop(node, "reg", &len);
if (!prop)
fdt_get_mem_rsv(initial_boot_params, n, &base, &size);
if (!size)
break;
- early_init_dt_reserve_memory_arch(base, size, 0);
+ early_init_dt_reserve_memory_arch(base, size, false);
}
of_scan_flat_dt(__fdt_scan_reserved_mem, NULL);
/* Reserve the dtb region */
early_init_dt_reserve_memory_arch(__pa(initial_boot_params),
fdt_totalsize(initial_boot_params),
- 0);
+ false);
}
/**
* @return offset of the subnode, or -FDT_ERR_NOTFOUND if there is none
*/
-int of_get_flat_dt_subnode_by_name(unsigned long node, const char *uname)
+int __init of_get_flat_dt_subnode_by_name(unsigned long node, const char *uname)
{
return fdt_subnode_offset(initial_boot_params, node, uname);
}
return 0;
}
-/**
- * of_get_flat_dt_size - Return the total size of the FDT
- */
-int __init of_get_flat_dt_size(void)
-{
- return fdt_totalsize(initial_boot_params);
-}
-
/**
* of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr
*
return fdt_getprop(initial_boot_params, node, name, size);
}
+/**
+ * of_fdt_is_compatible - Return true if given node from the given blob has
+ * compat in its compatible list
+ * @blob: A device tree blob
+ * @node: node to test
+ * @compat: compatible string to compare with compatible list.
+ *
+ * On match, returns a non-zero value with smaller values returned for more
+ * specific compatible values.
+ */
+static int of_fdt_is_compatible(const void *blob,
+ unsigned long node, const char *compat)
+{
+ const char *cp;
+ int cplen;
+ unsigned long l, score = 0;
+
+ cp = fdt_getprop(blob, node, "compatible", &cplen);
+ if (cp == NULL)
+ return 0;
+ while (cplen > 0) {
+ score++;
+ if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
+ return score;
+ l = strlen(cp) + 1;
+ cp += l;
+ cplen -= l;
+ }
+
+ return 0;
+}
+
/**
* of_flat_dt_is_compatible - Return true if given node has compat in compatible list
* @node: node to test
/**
* of_flat_dt_match - Return true if node matches a list of compatible values
*/
-int __init of_flat_dt_match(unsigned long node, const char *const *compat)
+static int __init of_flat_dt_match(unsigned long node, const char *const *compat)
{
- return of_fdt_match(initial_boot_params, node, compat);
+ unsigned int tmp, score = 0;
+
+ if (!compat)
+ return 0;
+
+ while (*compat) {
+ tmp = of_fdt_is_compatible(initial_boot_params, node, *compat);
+ if (tmp && (score == 0 || (tmp < score)))
+ score = tmp;
+ compat++;
+ }
+
+ return score;
}
/**
{
int l;
const char *p;
+ const void *rng_seed;
pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
pr_debug("Command line is: %s\n", (char*)data);
+ rng_seed = of_get_flat_dt_prop(node, "rng-seed", &l);
+ if (rng_seed && l > 0) {
+ add_bootloader_randomness(rng_seed, l);
+
+ /* try to clear seed so it won't be found. */
+ fdt_nop_property(initial_boot_params, node, "rng-seed");
+
+ /* update CRC check value */
+ of_fdt_crc32 = crc32_be(~0, initial_boot_params,
+ fdt_totalsize(initial_boot_params));
+ }
+
/* break now */
return 1;
}
size &= PAGE_MASK;
if (base > MAX_MEMBLOCK_ADDR) {
- pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
- base, base + size);
+ pr_warn("Ignoring memory block 0x%llx - 0x%llx\n",
+ base, base + size);
return;
}
if (base + size - 1 > MAX_MEMBLOCK_ADDR) {
- pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
- ((u64)MAX_MEMBLOCK_ADDR) + 1, base + size);
+ pr_warn("Ignoring memory range 0x%llx - 0x%llx\n",
+ ((u64)MAX_MEMBLOCK_ADDR) + 1, base + size);
size = MAX_MEMBLOCK_ADDR - base + 1;
}
if (base + size < phys_offset) {
- pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
- base, base + size);
+ pr_warn("Ignoring memory block 0x%llx - 0x%llx\n",
+ base, base + size);
return;
}
if (base < phys_offset) {
- pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
- base, phys_offset);
+ pr_warn("Ignoring memory range 0x%llx - 0x%llx\n",
+ base, phys_offset);
size -= phys_offset - base;
base = phys_offset;
}
{
static unsigned long once_only;
- pr_warn("kAFS: AFS vnode with undefined type %u\n",
- vnode->status.type);
+ pr_warn("kAFS: AFS vnode with undefined type %u\n", vnode->status.type);
pr_warn("kAFS: A=%d m=%o s=%llx v=%llx\n",
vnode->status.abort_code,
vnode->status.mode,
BUG_ON(test_bit(AFS_VNODE_UNSET, &vnode->flags));
if (status->type != vnode->status.type) {
- pr_warning("Vnode %llx:%llx:%x changed type %u to %u\n",
- vnode->fid.vid,
- vnode->fid.vnode,
- vnode->fid.unique,
- status->type, vnode->status.type);
+ pr_warn("Vnode %llx:%llx:%x changed type %u to %u\n",
+ vnode->fid.vid,
+ vnode->fid.vnode,
+ vnode->fid.unique,
+ status->type, vnode->status.type);
afs_protocol_error(NULL, -EBADMSG, afs_eproto_bad_status);
return;
}
if (scb->status.abort_code == VNOVNODE) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
clear_nlink(&vnode->vfs_inode);
- __afs_break_callback(vnode);
+ __afs_break_callback(vnode, afs_cb_break_for_deleted);
}
} else {
if (scb->have_status)
inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
if (root) {
inode->i_op = &afs_dynroot_inode_operations;
- inode->i_fop = &afs_dynroot_file_operations;
+ inode->i_fop = &simple_dir_operations;
} else {
inode->i_op = &afs_autocell_inode_operations;
}
struct afs_cb_interest *cbi;
struct afs_server *server;
struct afs_volume *volume = vnode->volume;
+ enum afs_cb_break_reason need_clear = afs_cb_break_no_break;
time64_t now = ktime_get_real_seconds();
- bool valid, need_clear = false;
+ bool valid;
unsigned int cb_break, cb_s_break, cb_v_break;
int seq = 0;
vnode->cb_v_break != cb_v_break) {
vnode->cb_s_break = cb_s_break;
vnode->cb_v_break = cb_v_break;
- need_clear = true;
+ need_clear = afs_cb_break_for_vsbreak;
valid = false;
} else if (test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
- need_clear = true;
+ need_clear = afs_cb_break_for_zap;
valid = false;
} else if (vnode->cb_expires_at - 10 <= now) {
- need_clear = true;
+ need_clear = afs_cb_break_for_lapsed;
valid = false;
} else {
valid = true;
done_seqretry(&vnode->cb_lock, seq);
- if (need_clear) {
+ if (need_clear != afs_cb_break_no_break) {
write_seqlock(&vnode->cb_lock);
if (cb_break == vnode->cb_break)
- __afs_break_callback(vnode);
+ __afs_break_callback(vnode, need_clear);
+ else
+ trace_afs_cb_miss(&vnode->fid, need_clear);
write_sequnlock(&vnode->cb_lock);
valid = false;
}
pr_err("kAFS: %s: Request buffer overflow (%zu>%u)\n",
call->type->name, len, call->request_size);
else if (len < call->request_size)
- pr_warning("kAFS: %s: Request buffer underflow (%zu<%u)\n",
- call->type->name, len, call->request_size);
+ pr_warn("kAFS: %s: Request buffer underflow (%zu<%u)\n",
+ call->type->name, len, call->request_size);
}
/*
req->offset = req->pos & (PAGE_SIZE - 1);
afs_extract_to_tmp64(call);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the returned data length */
+ /* extract the returned data length */
case 1:
_debug("extract data length");
ret = afs_extract_data(call, true);
call->bvec[0].bv_page = req->pages[req->index];
iov_iter_bvec(&call->iter, READ, call->bvec, 1, size);
ASSERTCMP(size, <=, PAGE_SIZE);
+ /* Fall through */
- /* Fall through - and extract the returned data */
+ /* extract the returned data */
case 2:
_debug("extract data %zu/%llu",
iov_iter_count(&call->iter), req->remain);
goto no_more_data;
/* Discard any excess data the server gave us */
- iov_iter_discard(&call->iter, READ, req->actual_len - req->len);
+ afs_extract_discard(call, req->actual_len - req->len);
call->unmarshall = 3;
-
/* Fall through */
+
case 3:
_debug("extract discard %zu/%llu",
iov_iter_count(&call->iter), req->actual_len - req->len);
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSCallBack) +
sizeof(struct yfs_xdr_YFSVolSync));
+ /* Fall through */
- /* Fall through - and extract the metadata */
+ /* extract the metadata */
case 4:
ret = afs_extract_data(call, false);
if (ret < 0)
req->file_size = call->out_scb->status.size;
call->unmarshall++;
-
/* Fall through */
+
case 5:
break;
}
case 0:
call->unmarshall++;
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSFetchVolumeStatus));
+ /* Fall through */
- /* Fall through - and extract the returned status record */
+ /* extract the returned status record */
case 1:
_debug("extract status");
ret = afs_extract_data(call, true);
xdr_decode_YFSFetchVolumeStatus(&bp, call->out_volstatus);
call->unmarshall++;
afs_extract_to_tmp(call);
+ /* Fall through */
- /* Fall through - and extract the volume name length */
+ /* extract the volume name length */
case 2:
ret = afs_extract_data(call, true);
if (ret < 0)
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_to_buf(call, size);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the volume name */
+ /* extract the volume name */
case 3:
_debug("extract volname");
ret = afs_extract_data(call, true);
_debug("volname '%s'", p);
afs_extract_to_tmp(call);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the offline message length */
+ /* extract the offline message length */
case 4:
ret = afs_extract_data(call, true);
if (ret < 0)
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_to_buf(call, size);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the offline message */
+ /* extract the offline message */
case 5:
_debug("extract offline");
ret = afs_extract_data(call, true);
afs_extract_to_tmp(call);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the message of the day length */
+ /* extract the message of the day length */
case 6:
ret = afs_extract_data(call, true);
if (ret < 0)
size = (call->count + 3) & ~3; /* It's padded */
afs_extract_to_buf(call, size);
call->unmarshall++;
+ /* Fall through */
- /* Fall through - and extract the message of the day */
+ /* extract the message of the day */
case 7:
_debug("extract motd");
ret = afs_extract_data(call, false);
_debug("motd '%s'", p);
call->unmarshall++;
-
/* Fall through */
+
case 8:
break;
}
case 0:
afs_extract_to_tmp(call);
call->unmarshall++;
+ /* Fall through */
/* Extract the file status count and array in two steps */
- /* Fall through */
case 1:
_debug("extract status count");
ret = afs_extract_data(call, true);
call->unmarshall++;
more_counts:
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSFetchStatus));
-
/* Fall through */
+
case 2:
_debug("extract status array %u", call->count);
ret = afs_extract_data(call, true);
call->count = 0;
call->unmarshall++;
afs_extract_to_tmp(call);
+ /* Fall through */
/* Extract the callback count and array in two steps */
- /* Fall through */
case 3:
_debug("extract CB count");
ret = afs_extract_data(call, true);
call->unmarshall++;
more_cbs:
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSCallBack));
-
/* Fall through */
+
case 4:
_debug("extract CB array");
ret = afs_extract_data(call, true);
afs_extract_to_buf(call, sizeof(struct yfs_xdr_YFSVolSync));
call->unmarshall++;
-
/* Fall through */
+
case 5:
ret = afs_extract_data(call, false);
if (ret < 0)
xdr_decode_YFSVolSync(&bp, call->out_volsync);
call->unmarshall++;
-
/* Fall through */
+
case 6:
break;
}
case 0:
afs_extract_to_tmp(call);
call->unmarshall++;
+ /* Fall through */
/* Extract the file ACL length */
case 1:
acl->size = call->count2;
afs_extract_begin(call, acl->data, size);
} else {
- iov_iter_discard(&call->iter, READ, size);
+ afs_extract_discard(call, size);
}
call->unmarshall++;
+ /* Fall through */
/* Extract the file ACL */
case 2:
afs_extract_to_tmp(call);
call->unmarshall++;
+ /* Fall through */
/* Extract the volume ACL length */
case 3:
acl->size = call->count2;
afs_extract_begin(call, acl->data, size);
} else {
- iov_iter_discard(&call->iter, READ, size);
+ afs_extract_discard(call, size);
}
call->unmarshall++;
+ /* Fall through */
/* Extract the volume ACL */
case 4:
sizeof(struct yfs_xdr_YFSFetchStatus) +
sizeof(struct yfs_xdr_YFSVolSync));
call->unmarshall++;
+ /* Fall through */
/* extract the metadata */
case 5:
xdr_decode_YFSVolSync(&bp, call->out_volsync);
call->unmarshall++;
+ /* Fall through */
case 6:
break;
key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
size = round_up(acl->size, 4);
- call = afs_alloc_flat_call(net, &yfs_RXYFSStoreStatus,
+ call = afs_alloc_flat_call(net, &yfs_RXYFSStoreOpaqueACL2,
sizeof(__be32) * 2 +
sizeof(struct yfs_xdr_YFSFid) +
sizeof(__be32) + size,
See Documentation/admin-guide/dynamic-debug-howto.rst for additional
information.
+ config SYMBOLIC_ERRNAME
+ bool "Support symbolic error names in printf"
+ default y if PRINTK
+ help
+ If you say Y here, the kernel's printf implementation will
+ be able to print symbolic error names such as ENOSPC instead
+ of the number 28. It makes the kernel image slightly larger
+ (about 3KB), but can make the kernel logs easier to read.
+
endmenu # "printk and dmesg options"
menu "Compile-time checks and compiler options"
to keep kernel developers who have to stare a lot at assembler listings
sane.
-config UNUSED_SYMBOLS
- bool "Enable unused/obsolete exported symbols"
- default y if X86
- help
- Unused but exported symbols make the kernel needlessly bigger. For
- that reason most of these unused exports will soon be removed. This
- option is provided temporarily to provide a transition period in case
- some external kernel module needs one of these symbols anyway. If you
- encounter such a case in your module, consider if you are actually
- using the right API. (rationale: since nobody in the kernel is using
- this in a module, there is a pretty good chance it's actually the
- wrong interface to use). If you really need the symbol, please send a
- mail to the linux kernel mailing list mentioning the symbol and why
- you really need it, and what the merge plan to the mainline kernel for
- your module is.
-
config DEBUG_FS
bool "Debug Filesystem"
help
If unsure, say N.
-config HEADERS_CHECK
- bool "Run 'make headers_check' when building vmlinux"
+config HEADERS_INSTALL
+ bool "Install uapi headers to usr/include"
depends on !UML
help
- This option will extract the user-visible kernel headers whenever
- building the kernel, and will run basic sanity checks on them to
- ensure that exported files do not attempt to include files which
- were not exported, etc.
+ This option will install uapi headers (headers exported to user-space)
+ into the usr/include directory for use during the kernel build.
+ This is unneeded for building the kernel itself, but needed for some
+ user-space program samples. It is also needed by some features such
+ as uapi header sanity checks.
+
+config HEADERS_CHECK
+ bool "Run sanity checks on uapi headers when building 'all'"
+ depends on HEADERS_INSTALL
+ help
+ This option will run basic sanity checks on uapi headers when
+ building the 'all' target, for example, ensure that they do not
+ attempt to include files which were not exported, etc.
If you're making modifications to header files which are
- relevant for userspace, say 'Y', and check the headers
- exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in
- your build tree), to make sure they're suitable.
+ relevant for userspace, say 'Y'.
config OPTIMIZE_INLINING
- bool "Allow compiler to uninline functions marked 'inline'"
+ def_bool y
help
This option determines if the kernel forces gcc to inline the functions
developers have marked 'inline'. Doing so takes away freedom from gcc to
decision will become the default in the future. Until then this option
is there to test gcc for this.
- If unsure, say N.
-
config DEBUG_SECTION_MISMATCH
bool "Enable full Section mismatch analysis"
help
which results in the code/data being placed in specific sections.
The section mismatch analysis is always performed after a full
kernel build, and enabling this option causes the following
- additional steps to occur:
+ additional step to occur:
- Add the option -fno-inline-functions-called-once to gcc commands.
When inlining a function annotated with __init in a non-init
function, we would lose the section information and thus
the analysis would not catch the illegal reference.
This option tells gcc to inline less (but it does result in
a larger kernel).
- - Run the section mismatch analysis for each module/built-in.a file.
- When we run the section mismatch analysis on vmlinux.o, we
- lose valuable information about where the mismatch was
- introduced.
- Running the analysis for each module/built-in.a file
- tells where the mismatch happens much closer to the
- source. The drawback is that the same mismatch is
- reported at least twice.
- - Enable verbose reporting from modpost in order to help resolve
- the section mismatches that are reported.
config SECTION_MISMATCH_WARN_ONLY
bool "Make section mismatch errors non-fatal"
In order to access the kmemleak file, debugfs needs to be
mounted (usually at /sys/kernel/debug).
-config DEBUG_KMEMLEAK_EARLY_LOG_SIZE
- int "Maximum kmemleak early log entries"
+config DEBUG_KMEMLEAK_MEM_POOL_SIZE
+ int "Kmemleak memory pool size"
depends on DEBUG_KMEMLEAK
- range 200 40000
- default 400
+ range 200 1000000
+ default 16000
help
Kmemleak must track all the memory allocations to avoid
reporting false positives. Since memory may be allocated or
- freed before kmemleak is initialised, an early log buffer is
- used to store these actions. If kmemleak reports "early log
- buffer exceeded", please increase this value.
+ freed before kmemleak is fully initialised, use a static pool
+ of metadata objects to track such callbacks. After kmemleak is
+ fully initialised, this memory pool acts as an emergency one
+ if slab allocations fail.
config DEBUG_KMEMLEAK_TEST
tristate "Simple test for the kernel memory leak detector"
the proof of observed correctness is also maintained for an
arbitrary combination of these separate locking variants.
- For more details, see Documentation/locking/lockdep-design.txt.
+ For more details, see Documentation/locking/lockdep-design.rst.
config LOCK_STAT
bool "Lock usage statistics"
help
This feature enables tracking lock contention points
- For more details, see Documentation/locking/lockstat.txt
+ For more details, see Documentation/locking/lockstat.rst
This also enables lock events required by "perf lock",
subcommand of perf.
See Documentation/debugging-via-ohci1394.txt for more information.
+source "lib/kunit/Kconfig"
+
menuconfig RUNTIME_TESTING_MENU
bool "Runtime Testing"
def_bool y
called lkdtm.
Documentation on how to use the module can be found in
- Documentation/fault-injection/provoke-crashes.txt
+ Documentation/fault-injection/provoke-crashes.rst
config TEST_LIST_SORT
tristate "Linked list sorting test"
If unsure, say N.
+config TEST_BLACKHOLE_DEV
+ tristate "Test blackhole netdev functionality"
+ depends on m && NET
+ help
+ This builds the "test_blackhole_dev" module that validates the
+ data path through this blackhole netdev.
+
+ If unsure, say N.
+
config FIND_BIT_BENCHMARK
tristate "Test find_bit functions"
help
If unsure, say N.
+config SYSCTL_KUNIT_TEST
+ bool "KUnit test for sysctl"
+ depends on KUNIT
+ help
+ This builds the proc sysctl unit test, which runs on boot.
+ Tests the API contract and implementation correctness of sysctl.
+ For more information on KUnit and unit tests in general please refer
+ to the KUnit documentation in Documentation/dev-tools/kunit/.
+
+ If unsure, say N.
+
+config LIST_KUNIT_TEST
+ bool "KUnit Test for Kernel Linked-list structures"
+ depends on KUNIT
+ help
+ This builds the linked list KUnit test suite.
+ It tests that the API and basic functionality of the list_head type
+ and associated macros.
+
+ KUnit tests run during boot and output the results to the debug log
+ in TAP format (http://testanything.org/). Only useful for kernel devs
+ running the KUnit test harness, and not intended for inclusion into a
+ production build.
+
+ For more information on KUnit and unit tests in general please refer
+ to the KUnit documentation in Documentation/dev-tools/kunit/.
+
+ If unsure, say N.
+
config TEST_UDELAY
tristate "udelay test driver"
help
If unsure, say N.
+config TEST_MEMINIT
+ tristate "Test heap/page initialization"
+ help
+ Test if the kernel is zero-initializing heap and page allocations.
+ This can be useful to test init_on_alloc and init_on_free features.
+
+ If unsure, say N.
+
endif # RUNTIME_TESTING_MENU
config MEMTEST
ifdef CONFIG_AMD_MEM_ENCRYPT
KASAN_SANITIZE_string.o := n
-ifdef CONFIG_FUNCTION_TRACER
-CFLAGS_REMOVE_string.o = -pg
-endif
-
CFLAGS_string.o := $(call cc-option, -fno-stack-protector)
endif
obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
obj-$(CONFIG_TEST_STACKINIT) += test_stackinit.o
+obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
+obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
obj-$(CONFIG_TEST_LIVEPATCH) += livepatch/
+obj-$(CONFIG_KUNIT) += kunit/
+
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
CFLAGS_kobject_uevent.o += -DDEBUG
obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
+ obj-$(CONFIG_SYMBOLIC_ERRNAME) += errname.o
obj-$(CONFIG_NLATTR) += nlattr.o
obj-$(CONFIG_GLOB_SELFTEST) += globtest.o
obj-$(CONFIG_MPILIB) += mpi/
+obj-$(CONFIG_DIMLIB) += dim/
obj-$(CONFIG_SIGNATURE) += digsig.o
lib-$(CONFIG_CLZ_TAB) += clz_tab.o
-obj-$(CONFIG_DDR) += jedec_ddr_data.o
-
obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
obj-$(CONFIG_UBSAN) += ubsan.o
UBSAN_SANITIZE_ubsan.o := n
-CFLAGS_ubsan.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
+KASAN_SANITIZE_ubsan.o := n
+CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN)
obj-$(CONFIG_SBITMAP) += sbitmap.o
obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
obj-$(CONFIG_OBJAGG) += objagg.o
+
+# KUnit tests
+obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
my $typedefsfile = "";
my $color = "auto";
my $allow_c99_comments = 1; # Can be overridden by --ignore C99_COMMENT_TOLERANCE
+# git output parsing needs US English output, so first set backtick child process LANGUAGE
+my $git_command ='export LANGUAGE=en_US.UTF-8; git';
sub help {
my ($exitcode) = @_;
$camelcase_seeded = 1;
if (-e ".git") {
- my $git_last_include_commit = `git log --no-merges --pretty=format:"%h%n" -1 -- include`;
+ my $git_last_include_commit = `${git_command} log --no-merges --pretty=format:"%h%n" -1 -- include`;
chomp $git_last_include_commit;
$camelcase_cache = ".checkpatch-camelcase.git.$git_last_include_commit";
} else {
}
if (-e ".git") {
- $files = `git ls-files "include/*.h"`;
+ $files = `${git_command} ls-files "include/*.h"`;
@include_files = split('\n', $files);
}
return ($id, $desc) if ((which("git") eq "") || !(-e ".git"));
- my $output = `git log --no-color --format='%H %s' -1 $commit 2>&1`;
+ my $output = `${git_command} log --no-color --format='%H %s' -1 $commit 2>&1`;
$output =~ s/^\s*//gm;
my @lines = split("\n", $output);
return ($id, $desc) if ($#lines < 0);
- if ($lines[0] =~ /^error: short SHA1 $commit is ambiguous\./) {
+ if ($lines[0] =~ /^error: short SHA1 $commit is ambiguous/) {
# Maybe one day convert this block of bash into something that returns
# all matching commit ids, but it's very slow...
#
} else {
$git_range = "-1 $commit_expr";
}
- my $lines = `git log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
+ my $lines = `${git_command} log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
foreach my $line (split(/\n/, $lines)) {
$line =~ /^([0-9a-fA-F]{40,40}) (.*)$/;
next if (!defined($1) || !defined($2));
($line =~ /^\s*(?:WARNING:|BUG:)/ ||
$line =~ /^\s*\[\s*\d+\.\d{6,6}\s*\]/ ||
# timestamp
- $line =~ /^\s*\[\<[0-9a-fA-F]{8,}\>\]/)) {
- # stack dump address
+ $line =~ /^\s*\[\<[0-9a-fA-F]{8,}\>\]/) ||
+ $line =~ /^(?:\s+\w+:\s+[0-9a-fA-F]+){3,3}/ ||
+ $line =~ /^\s*\#\d+\s*\[[0-9a-fA-F]+\]\s*\w+ at [0-9a-fA-F]+/) {
+ # stack dump address styles
$commit_log_possible_stack_dump = 1;
}
}
}
+# check for invalid commit id
+ if ($in_commit_log && $line =~ /(^fixes:|\bcommit)\s+([0-9a-f]{6,40})\b/i) {
+ my $id;
+ my $description;
+ ($id, $description) = git_commit_info($2, undef, undef);
+ if (!defined($id)) {
+ WARN("UNKNOWN_COMMIT_ID",
+ "Unknown commit id '$2', maybe rebased or not pulled?\n" . $herecurr);
+ }
+ }
+
# ignore non-hunk lines and lines being removed
next if (!$hunk_line || $line =~ /^-/);
# check SPDX comment style for .[chsS] files
if ($realfile =~ /\.[chsS]$/ &&
$rawline =~ /SPDX-License-Identifier:/ &&
- $rawline !~ /^\+\s*\Q$comment\E\s*/) {
+ $rawline !~ m@^\+\s*\Q$comment\E\s*@) {
WARN("SPDX_LICENSE_TAG",
"Improper SPDX comment style for '$realfile', please use '$comment' instead\n" . $herecurr);
}
if ($comment !~ /^$/ &&
- $rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) {
- WARN("SPDX_LICENSE_TAG",
- "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
+ $rawline !~ m@^\+\Q$comment\E SPDX-License-Identifier: @) {
+ WARN("SPDX_LICENSE_TAG",
+ "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
} elsif ($rawline =~ /(SPDX-License-Identifier: .*)/) {
- my $spdx_license = $1;
- if (!is_SPDX_License_valid($spdx_license)) {
- WARN("SPDX_LICENSE_TAG",
- "'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
- }
+ my $spdx_license = $1;
+ if (!is_SPDX_License_valid($spdx_license)) {
+ WARN("SPDX_LICENSE_TAG",
+ "'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
+ }
}
}
}
# closing brace should have a space following it when it has anything
# on the line
- if ($line =~ /}(?!(?:,|;|\)))\S/) {
+ if ($line =~ /}(?!(?:,|;|\)|\}))\S/) {
if (ERROR("SPACING",
"space required after that close brace '}'\n" . $herecurr) &&
$fix) {
next if ($arg =~ /\.\.\./);
next if ($arg =~ /^type$/i);
my $tmp_stmt = $define_stmt;
- $tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
+ $tmp_stmt =~ s/\b(sizeof|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
$tmp_stmt =~ s/\#+\s*$arg\b//g;
$tmp_stmt =~ s/\b$arg\s*\#\#//g;
my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g;
# ignore udelay's < 10, however
if (! ($delay < 10) ) {
CHK("USLEEP_RANGE",
- "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $herecurr);
+ "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.rst\n" . $herecurr);
}
if ($delay > 2000) {
WARN("LONG_UDELAY",
if ($line =~ /\bmsleep\s*\((\d+)\);/) {
if ($1 < 20) {
WARN("MSLEEP",
- "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $herecurr);
+ "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.rst\n" . $herecurr);
}
}
"__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
}
+# Check for __attribute__ section, prefer __section
+ if ($realfile !~ m@\binclude/uapi/@ &&
+ $line =~ /\b__attribute__\s*\(\s*\(.*_*section_*\s*\(\s*("[^"]*")/) {
+ my $old = substr($rawline, $-[1], $+[1] - $-[1]);
+ my $new = substr($old, 1, -1);
+ if (WARN("PREFER_SECTION",
+ "__section($new) is preferred over __attribute__((section($old)))\n" . $herecurr) &&
+ $fix) {
+ $fixed[$fixlinenr] =~ s/\b__attribute__\s*\(\s*\(\s*_*section_*\s*\(\s*\Q$old\E\s*\)\s*\)\s*\)/__section($new)/;
+ }
+ }
+
# Check for __attribute__ format(printf, prefer __printf
if ($realfile !~ m@\binclude/uapi/@ &&
$line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
while ($fmt =~ /(\%[\*\d\.]*p(\w))/g) {
$specifier = $1;
$extension = $2;
- if ($extension !~ /[SsBKRraEhMmIiUDdgVCbGNOxt]/) {
+ if ($extension !~ /[SsBKRraEehMmIiUDdgVCbGNOxt]/) {
$bad_specifier = $specifier;
last;
}
my $max = $7;
if ($min eq $max) {
WARN("USLEEP_RANGE",
- "usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
+ "usleep_range should not use min == max args; see Documentation/timers/timers-howto.rst\n" . "$here\n$stat\n");
} elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ &&
$min > $max) {
WARN("USLEEP_RANGE",
- "usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
+ "usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.rst\n" . "$here\n$stat\n");
}
}
"Using $1 should generally have parentheses around the comparison\n" . $herecurr);
}
+# nested likely/unlikely calls
+ if ($line =~ /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) {
+ WARN("LIKELY_MISUSE",
+ "nested (un)?likely() calls, $1 already uses unlikely() internally\n" . $herecurr);
+ }
+
# whine mightly about in_atomic
if ($line =~ /\bin_atomic\s*\(/) {
if ($realfile =~ m@^drivers/@) {
"unknown module license " . $extracted_string . "\n" . $herecurr);
}
}
+
+# check for sysctl duplicate constants
+ if ($line =~ /\.extra[12]\s*=\s*&(zero|one|int_max)\b/) {
+ WARN("DUPLICATED_SYSCTL_CONST",
+ "duplicated sysctl range checking value '$1', consider using the shared one in include/linux/sysctl.h\n" . $herecurr);
+ }
}
# If we have no input at all, then there is nothing to report on
projects / linux.git / commitdiff