arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension
support
+ arm64.nosve [ARM64] Unconditionally disable Scalable Vector
+ Extension support
+
+ arm64.nosme [ARM64] Unconditionally disable Scalable Matrix
+ Extension support
+
ataflop= [HW,M68k]
atarimouse= [HW,MOUSE] Atari Mouse
nosocket -- Disable socket memory accounting.
nokmem -- Disable kernel memory accounting.
- checkreqprot [SELINUX] Set initial checkreqprot flag value.
+ checkreqprot= [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
0 -- check protection applied by kernel (includes
(in particular on some ATI chipsets).
The kernel tries to set a reasonable default.
- enforcing [SELINUX] Set initial enforcing status.
+ enforcing= [SELINUX] Set initial enforcing status.
Format: {"0" | "1"}
See security/selinux/Kconfig help text.
0 -- permissive (log only, no denials).
hlt [BUGS=ARM,SH]
+ hostname= [KNL] Set the hostname (aka UTS nodename).
+ Format: <string>
+ This allows setting the system's hostname during early
+ startup. This sets the name returned by gethostname.
+ Using this parameter to set the hostname makes it
+ possible to ensure the hostname is correctly set before
+ any userspace processes run, avoiding the possibility
+ that a process may call gethostname before the hostname
+ has been explicitly set, resulting in the calling
+ process getting an incorrect result. The string must
+ not exceed the maximum allowed hostname length (usually
+ 64 characters) and will be truncated otherwise.
+
hpet= [X86-32,HPET] option to control HPET usage
Format: { enable (default) | disable | force |
verbose }
Built with CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON=y,
the default is on.
- This is not compatible with memory_hotplug.memmap_on_memory.
- If both parameters are enabled, hugetlb_free_vmemmap takes
- precedence over memory_hotplug.memmap_on_memory.
+ Note that the vmemmap pages may be allocated from the added
+ memory block itself when memory_hotplug.memmap_on_memory is
+ enabled, those vmemmap pages cannot be optimized even if this
+ feature is enabled. Other vmemmap pages not allocated from
+ the added memory block itself do not be affected.
hung_task_panic=
[KNL] Should the hung task detector generate panics.
ivrs_ioapic [HW,X86-64]
Provide an override to the IOAPIC-ID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map IOAPIC-ID decimal 10 to
- PCI device 00:14.0 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+ By default, PCI segment is 0, and can be omitted.
+ For example:
+ * To map IOAPIC-ID decimal 10 to PCI device 00:14.0
+ write the parameter as:
ivrs_ioapic[10]=00:14.0
+ * To map IOAPIC-ID decimal 10 to PCI segment 0x1 and
+ PCI device 00:14.0 write the parameter as:
+ ivrs_ioapic[10]=0001:00:14.0
ivrs_hpet [HW,X86-64]
Provide an override to the HPET-ID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map HPET-ID decimal 0 to
- PCI device 00:14.0 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+ By default, PCI segment is 0, and can be omitted.
+ For example:
+ * To map HPET-ID decimal 0 to PCI device 00:14.0
+ write the parameter as:
ivrs_hpet[0]=00:14.0
+ * To map HPET-ID decimal 10 to PCI segment 0x1 and
+ PCI device 00:14.0 write the parameter as:
+ ivrs_ioapic[10]=0001:00:14.0
ivrs_acpihid [HW,X86-64]
Provide an override to the ACPI-HID:UID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map UART-HID:UID AMD0020:0 to
- PCI device 00:14.5 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+
+ For example, to map UART-HID:UID AMD0020:0 to
+ PCI segment 0x1 and PCI device ID 00:14.5,
+ write the parameter as:
+ ivrs_acpihid[0001:00:14.5]=AMD0020:0
+
+ By default, PCI segment is 0, and can be omitted.
+ For example, PCI device 00:14.5 write the parameter as:
ivrs_acpihid[00:14.5]=AMD0020:0
js= [HW,JOY] Analog joystick
the KVM_CLEAR_DIRTY ioctl, and only for the pages being
cleared.
- Eager page splitting currently only supports splitting
- huge pages mapped by the TDP MMU.
+ Eager page splitting is only supported when kvm.tdp_mmu=Y.
Default is Y (on).
[KNL,X86,ARM] Boolean flag to enable this feature.
Format: {on | off (default)}
When enabled, runtime hotplugged memory will
- allocate its internal metadata (struct pages)
- from the hotadded memory which will allow to
- hotadd a lot of memory without requiring
- additional memory to do so.
+ allocate its internal metadata (struct pages,
+ those vmemmap pages cannot be optimized even
+ if hugetlb_free_vmemmap is enabled) from the
+ hotadded memory which will allow to hotadd a
+ lot of memory without requiring additional
+ memory to do so.
This feature is disabled by default because it
has some implication on large (e.g. GB)
allocations in some configurations (e.g. small
Note that even when enabled, there are a few cases where
the feature is not effective.
- This is not compatible with hugetlb_free_vmemmap. If
- both parameters are enabled, hugetlb_free_vmemmap takes
- precedence over memory_hotplug.memmap_on_memory.
-
memtest= [KNL,X86,ARM,M68K,PPC,RISCV] Enable memtest
Format: <integer>
default : 0 <disable>
mem_encrypt=on: Activate SME
mem_encrypt=off: Do not activate SME
- Refer to Documentation/virt/kvm/amd-memory-encryption.rst
+ Refer to Documentation/virt/kvm/x86/amd-memory-encryption.rst
for details on when memory encryption can be activated.
mem_sleep_default= [SUSPEND] Default system suspend mode:
improves system performance, but it may also
expose users to several CPU vulnerabilities.
Equivalent to: nopti [X86,PPC]
- kpti=0 [ARM64]
+ if nokaslr then kpti=0 [ARM64]
nospectre_v1 [X86,PPC]
nobp=0 [S390]
nospectre_v2 [X86,PPC,S390,ARM64]
no_entry_flush [PPC]
no_uaccess_flush [PPC]
mmio_stale_data=off [X86]
+ retbleed=off [X86]
Exceptions:
This does not have any effect on
mds=full,nosmt [X86]
tsx_async_abort=full,nosmt [X86]
mmio_stale_data=full,nosmt [X86]
+ retbleed=auto,nosmt [X86]
mminit_loglevel=
[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
noautogroup Disable scheduler automatic task group creation.
- nobats [PPC] Do not use BATs for mapping kernel lowmem
- on "Classic" PPC cores.
-
nocache [ARM]
nodsp [SH] Disable hardware DSP at boot time.
just as if they had also been called out in the
rcu_nocbs= boot parameter.
+ Note that this argument takes precedence over
+ the CONFIG_RCU_NOCB_CPU_DEFAULT_ALL option.
+
noiotrap [SH] Disables trapped I/O port accesses.
noirqdebug [X86-32] Disables the code which attempts to detect and
nolapic_timer [X86-32,APIC] Do not use the local APIC timer.
- noltlbs [PPC] Do not use large page/tlb entries for kernel
- lowmem mapping on PPC40x and PPC8xx
-
nomca [IA-64] Disable machine check abort handling
nomce [X86-32] Disable Machine Check Exception
noreplace-smp [X86-32,SMP] Don't replace SMP instructions
with UP alternatives
- nordrand [X86] Disable kernel use of the RDRAND and
- RDSEED instructions even if they are supported
- by the processor. RDRAND and RDSEED are still
- available to user space applications.
-
noresume [SWSUSP] Disables resume and restores original swap
space.
no-callback mode from boot but the mode may be
toggled at runtime via cpusets.
+ Note that this argument takes precedence over
+ the CONFIG_RCU_NOCB_CPU_DEFAULT_ALL option.
+
rcu_nocb_poll [KNL]
Rather than requiring that offloaded CPUs
(specified by rcu_nocbs= above) explicitly
When RCU_NOCB_CPU is set, also adjust the
priority of NOCB callback kthreads.
+ rcutree.rcu_divisor= [KNL]
+ Set the shift-right count to use to compute
+ the callback-invocation batch limit bl from
+ the number of callbacks queued on this CPU.
+ The result will be bounded below by the value of
+ the rcutree.blimit kernel parameter. Every bl
+ callbacks, the softirq handler will exit in
+ order to allow the CPU to do other work.
+
+ Please note that this callback-invocation batch
+ limit applies only to non-offloaded callback
+ invocation. Offloaded callbacks are instead
+ invoked in the context of an rcuoc kthread, which
+ scheduler will preempt as it does any other task.
+
+ rcutree.nocb_nobypass_lim_per_jiffy= [KNL]
+ On callback-offloaded (rcu_nocbs) CPUs,
+ RCU reduces the lock contention that would
+ otherwise be caused by callback floods through
+ use of the ->nocb_bypass list. However, in the
+ common non-flooded case, RCU queues directly to
+ the main ->cblist in order to avoid the extra
+ overhead of the ->nocb_bypass list and its lock.
+ But if there are too many callbacks queued during
+ a single jiffy, RCU pre-queues the callbacks into
+ the ->nocb_bypass queue. The definition of "too
+ many" is supplied by this kernel boot parameter.
+
rcutree.rcu_nocb_gp_stride= [KNL]
Set the number of NOCB callback kthreads in
each group, which defaults to the square root
retain_initrd [RAM] Keep initrd memory after extraction
+ retbleed= [X86] Control mitigation of RETBleed (Arbitrary
+ Speculative Code Execution with Return Instructions)
+ vulnerability.
+
+ off - no mitigation
+ auto - automatically select a migitation
+ auto,nosmt - automatically select a mitigation,
+ disabling SMT if necessary for
+ the full mitigation (only on Zen1
+ and older without STIBP).
+ ibpb - mitigate short speculation windows on
+ basic block boundaries too. Safe, highest
+ perf impact.
+ unret - force enable untrained return thunks,
+ only effective on AMD f15h-f17h
+ based systems.
+ unret,nosmt - like unret, will disable SMT when STIBP
+ is not available.
+
+ Selecting 'auto' will choose a mitigation method at run
+ time according to the CPU.
+
+ Not specifying this option is equivalent to retbleed=auto.
+
rfkill.default_state=
0 "airplane mode". All wifi, bluetooth, wimax, gps, fm,
etc. communication is blocked by default.
cache (risks via metadata attacks are mostly
unchanged). Debug options disable merging on their
own.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slab_max_order= [MM, SLAB]
Determines the maximum allowed order for slabs.
slub_debug can create guard zones around objects and
may poison objects when not in use. Also tracks the
last alloc / free. For more information see
- Documentation/vm/slub.rst.
+ Documentation/mm/slub.rst.
slub_max_order= [MM, SLUB]
Determines the maximum allowed order for slabs.
A high setting may cause OOMs due to memory
fragmentation. For more information see
- Documentation/vm/slub.rst.
+ Documentation/mm/slub.rst.
slub_min_objects= [MM, SLUB]
The minimum number of objects per slab. SLUB will
the number of objects indicated. The higher the number
of objects the smaller the overhead of tracking slabs
and the less frequently locks need to be acquired.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slub_min_order= [MM, SLUB]
Determines the minimum page order for slabs. Must be
lower than slub_max_order.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slub_merge [MM, SLUB]
Same with slab_merge.
eibrs - enhanced IBRS
eibrs,retpoline - enhanced IBRS + Retpolines
eibrs,lfence - enhanced IBRS + LFENCE
+ ibrs - use IBRS to protect kernel
Not specifying this option is equivalent to
spectre_v2=auto.
expediting. Set to zero to disable automatic
expediting.
+ srcutree.srcu_max_nodelay [KNL]
+ Specifies the number of no-delay instances
+ per jiffy for which the SRCU grace period
+ worker thread will be rescheduled with zero
+ delay. Beyond this limit, worker thread will
+ be rescheduled with a sleep delay of one jiffy.
+
+ srcutree.srcu_max_nodelay_phase [KNL]
+ Specifies the per-grace-period phase, number of
+ non-sleeping polls of readers. Beyond this limit,
+ grace period worker thread will be rescheduled
+ with a sleep delay of one jiffy, between each
+ rescan of the readers, for a grace period phase.
+
+ srcutree.srcu_retry_check_delay [KNL]
+ Specifies number of microseconds of non-sleeping
+ delay between each non-sleeping poll of readers.
+
srcutree.small_contention_lim [KNL]
Specifies the number of update-side contention
events per jiffy will be tolerated before
it if 0 is given (See Documentation/admin-guide/cgroup-v1/memory.rst)
swiotlb= [ARM,IA-64,PPC,MIPS,X86]
- Format: { <int> | force | noforce }
+ Format: { <int> [,<int>] | force | noforce }
<int> -- Number of I/O TLB slabs
+ <int> -- Second integer after comma. Number of swiotlb
+ areas with their own lock. Will be rounded up
+ to a power of 2.
force -- force using of bounce buffers even if they
wouldn't be automatically used by the kernel
noforce -- Never use bounce buffers (for debugging)
6LOWPAN GENERIC (BTLE/IEEE 802.15.4)
S: Maintained
F: include/uapi/linux/virtio_9p.h
F: net/9p/
+A64FX DIAG DRIVER
+S: Supported
+F: drivers/soc/fujitsu/a64fx-diag.c
+
A8293 MEDIA DRIVER
F: drivers/hwmon/abituguru3.c
ACCES 104-DIO-48E GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-104-dio-48e.c
ACCES 104-IDI-48 GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-104-idi-48.c
ACCES 104-IDIO-16 GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-104-idio-16.c
ACCES 104-QUAD-8 DRIVER
S: Maintained
F: drivers/counter/104-quad-8.c
ACCES PCI-IDIO-16 GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-pci-idio-16.c
ACCES PCIe-IDIO-24 GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-pcie-idio-24.c
ACPI VIOT DRIVER
S: Maintained
F: drivers/acpi/viot.c
F: Documentation/i2c/busses/i2c-ali1563.rst
F: drivers/i2c/busses/i2c-ali1563.c
+ALIBABA ELASTIC RDMA DRIVER
+S: Supported
+F: drivers/infiniband/hw/erdma
+F: include/uapi/rdma/erdma-abi.h
+
ALIENWARE WMI DRIVER
S: Maintained
F: Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
F: drivers/media/platform/sunxi/sun4i-csi/
+ALLWINNER A31 MIPI CSI-2 BRIDGE DRIVER
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: Documentation/devicetree/bindings/media/allwinner,sun6i-a31-mipi-csi2.yaml
+F: drivers/media/platform/sunxi/sun6i-mipi-csi2/
+
ALLWINNER CPUFREQ DRIVER
F: drivers/staging/media/sunxi/cedrus/
ALPHA PORT
AMD IOMMU (AMD-VI)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
S: Maintained
-F: drivers/platform/x86/amd-pmc.*
+F: drivers/platform/x86/amd/pmc.c
AMD HSMP DRIVER
F: Documentation/x86/amd_hsmp.rst
F: arch/x86/include/asm/amd_hsmp.h
F: arch/x86/include/uapi/asm/amd_hsmp.h
-F: drivers/platform/x86/amd_hsmp.c
+F: drivers/platform/x86/amd/hsmp.c
AMD POWERPLAY AND SWSMU
AMD XGBE DRIVER
S: Supported
F: arch/arm64/boot/dts/amd/amd-seattle-xgbe*.dtsi
-M: Hridya Valsaraju <hridya@google.com>
+M: Carlos Llamas <cmllamas@google.com>
S: Supported
F: sound/aoa/
APEX EMBEDDED SYSTEMS STX104 IIO DRIVER
S: Maintained
F: drivers/iio/adc/stx104.c
W: http://www.aquantia.com
F: drivers/net/ethernet/aquantia/atlantic/aq_ptp*
+AR0521 ON SEMICONDUCTOR CAMERA SENSOR DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
+F: drivers/media/i2c/ar0521.c
+
ARASAN NAND CONTROLLER DRIVER
F: Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
F: Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
F: Documentation/devicetree/bindings/clock/arm,syscon-icst.yaml
-F: Documentation/devicetree/bindings/i2c/i2c-versatile.txt
+F: Documentation/devicetree/bindings/i2c/arm,i2c-versatile.yaml
F: Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt
F: Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
F: arch/arm/boot/dts/arm-realview-*
S: Maintained
W: https://asahilinux.org
F: Documentation/devicetree/bindings/arm/apple.yaml
F: Documentation/devicetree/bindings/arm/apple/*
F: Documentation/devicetree/bindings/clock/apple,nco.yaml
+F: Documentation/devicetree/bindings/dma/apple,admac.yaml
F: Documentation/devicetree/bindings/i2c/apple,i2c.yaml
F: Documentation/devicetree/bindings/interrupt-controller/apple,*
F: Documentation/devicetree/bindings/iommu/apple,dart.yaml
F: Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
F: arch/arm64/boot/dts/apple/
F: drivers/clk/clk-apple-nco.c
+F: drivers/dma/apple-admac.c
F: drivers/i2c/busses/i2c-pasemi-core.c
F: drivers/i2c/busses/i2c-pasemi-platform.c
F: drivers/iommu/apple-dart.c
S: Supported
Q: https://patchwork.ozlabs.org/project/linux-aspeed/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
+F: Documentation/devicetree/bindings/arm/aspeed/
F: arch/arm/boot/dts/aspeed-*
F: arch/arm/mach-aspeed/
N: aspeed
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git
F: Documentation/ABI/testing/sysfs-bus-coresight-devices-*
-F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
-F: Documentation/devicetree/bindings/arm/coresight-cti.yaml
-F: Documentation/devicetree/bindings/arm/coresight.txt
-F: Documentation/devicetree/bindings/arm/ete.yaml
-F: Documentation/devicetree/bindings/arm/trbe.yaml
+F: Documentation/devicetree/bindings/arm/arm,coresight-*.yaml
+F: Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
+F: Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
F: Documentation/trace/coresight/*
F: drivers/hwtracing/coresight/*
F: include/dt-bindings/arm/coresight-cti-dt.h
S: Maintained
F: Documentation/devicetree/bindings/arm/hpe,gxp.yaml
+F: Documentation/devicetree/bindings/spi/hpe,gxp-spi.yaml
F: Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
F: arch/arm/boot/dts/hpe-bmc*
F: arch/arm/boot/dts/hpe-gxp*
F: arch/arm/mach-hpe/
F: drivers/clocksource/timer-gxp.c
+F: drivers/spi/spi-gxp.c
F: drivers/watchdog/gxp-wdt.c
ARM/IGEP MACHINE SUPPORT
F: Documentation/devicetree/bindings/arm/ste-*
F: Documentation/devicetree/bindings/arm/ux500.yaml
F: Documentation/devicetree/bindings/arm/ux500/
-F: Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
+F: Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
F: arch/arm/boot/dts/ste-*
F: arch/arm/mach-nomadik/
F: arch/arm/mach-ux500/
F: Documentation/devicetree/bindings/arm/npcm/*
F: arch/arm/boot/dts/nuvoton-npcm*
F: arch/arm/mach-npcm/
+F: arch/arm64/boot/dts/nuvoton/
F: drivers/*/*npcm*
F: drivers/*/*/*npcm*
F: include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
+F: include/dt-bindings/clock/nuvoton,npcm845-clk.h
ARM/NUVOTON WPCM450 ARCHITECTURE
N: oxnas
ARM/PALM TREO SUPPORT
-S: Maintained
-W: http://hackndev.com
+S: Orphan
F: arch/arm/mach-pxa/palmtreo.*
ARM/PALMTX,PALMT5,PALMLD,PALMTE2,PALMTC SUPPORT
ARM/QUALCOMM SUPPORT
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git
S: Maintained
F: Documentation/devicetree/bindings/arm/rda.yaml
F: Documentation/devicetree/bindings/gpio/gpio-rda.yaml
-F: Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
+F: Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.yaml
F: Documentation/devicetree/bindings/serial/rda,8810pl-uart.yaml
F: Documentation/devicetree/bindings/timer/rda,8810pl-timer.yaml
F: arch/arm/boot/dts/rda8810pl-*
C: irc://irc.libera.chat/renesas-soc
T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
F: Documentation/devicetree/bindings/arm/renesas.yaml
+F: Documentation/devicetree/bindings/hwinfo/renesas,prr.yaml
+F: Documentation/devicetree/bindings/soc/renesas/
F: arch/arm64/boot/dts/renesas/
F: drivers/soc/renesas/
F: include/linux/soc/renesas/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git
F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
+F: Documentation/devicetree/bindings/hwinfo/samsung,*
F: Documentation/devicetree/bindings/power/pd-samsung.yaml
F: Documentation/devicetree/bindings/soc/samsung/
F: arch/arm/boot/dts/exynos*
S: Maintained
+F: Documentation/devicetree/bindings/media/samsung,s5pv210-jpeg.yaml
F: drivers/media/platform/samsung/s5p-jpeg/
ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
C: irc://irc.libera.chat/renesas-soc
T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
F: Documentation/devicetree/bindings/arm/renesas.yaml
+F: Documentation/devicetree/bindings/soc/renesas/
F: arch/arm/boot/dts/emev2*
F: arch/arm/boot/dts/gr-peach*
F: arch/arm/boot/dts/iwg20d-q7*
N: stm32
N: stm
+ARM/SUNPLUS SP7021 SOC SUPPORT
+S: Maintained
+W: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
+F: Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
+F: Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
+F: Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
+F: Documentation/devicetree/bindings/reset/sunplus,reset.yaml
+F: arch/arm/boot/dts/sunplus-sp7021*.dts*
+F: arch/arm/configs/sp7021_*defconfig
+F: arch/arm/mach-sunplus/
+F: drivers/irqchip/irq-sp7021-intc.c
+F: drivers/reset/reset-sunplus.c
+F: include/dt-bindings/clock/sunplus,sp7021-clkc.h
+F: include/dt-bindings/reset/sunplus,sp7021-reset.h
+
ARM/Synaptics SoC support
S: Supported
F: Documentation/devicetree/bindings/arm/ti/k3.yaml
+F: Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
F: arch/arm64/boot/dts/ti/Makefile
F: arch/arm64/boot/dts/ti/k3-*
F: include/dt-bindings/pinctrl/k3.h
F: Documentation/devicetree/bindings/media/aspeed-video.txt
F: drivers/media/platform/aspeed/
+ASPEED USB UDC DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml
+F: drivers/usb/gadget/udc/aspeed_udc.c
+
ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
F: drivers/net/wireless/broadcom/b43legacy/
BACKLIGHT CLASS/SUBSYSTEM
-M: Lee Jones <lee.jones@linaro.org>
+M: Lee Jones <lee@kernel.org>
F: Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
F: drivers/iio/accel/bma400*
-BPF (Safe dynamic programs and tools)
+BPF [GENERAL] (Safe Dynamic Programs and Tools)
+R: Song Liu <song@kernel.org>
S: Supported
W: https://bpf.io/
F: tools/bpf/
F: tools/lib/bpf/
F: tools/testing/selftests/bpf/
-N: bpf
-K: bpf
BPF JIT for ARM
S: Odd Fixes
F: arch/arm/net/
S: Supported
F: arch/arm64/net/
BPF JIT for MIPS (32-BIT AND 64-BIT)
S: Maintained
F: arch/mips/net/
BPF JIT for NFP NICs
S: Odd Fixes
F: drivers/net/ethernet/netronome/nfp/bpf/
BPF JIT for POWERPC (32-BIT AND 64-BIT)
S: Supported
F: arch/powerpc/net/
BPF JIT for RISC-V (32-bit)
S: Maintained
F: arch/riscv/net/
BPF JIT for RISC-V (64-bit)
S: Maintained
F: arch/riscv/net/
S: Supported
F: arch/s390/net/
BPF JIT for SPARC (32-BIT AND 64-BIT)
S: Odd Fixes
F: arch/sparc/net/
BPF JIT for X86 32-BIT
S: Odd Fixes
F: arch/x86/net/bpf_jit_comp32.c
BPF JIT for X86 64-BIT
S: Supported
F: arch/x86/net/
X: arch/x86/net/bpf_jit_comp32.c
-BPF LSM (Security Audit and Enforcement using BPF)
+BPF [CORE]
+S: Maintained
+F: kernel/bpf/verifier.c
+F: kernel/bpf/tnum.c
+F: kernel/bpf/core.c
+F: kernel/bpf/syscall.c
+F: kernel/bpf/dispatcher.c
+F: kernel/bpf/trampoline.c
+F: include/linux/bpf*
+F: include/linux/filter.h
+
+BPF [BTF]
+S: Maintained
+F: kernel/bpf/btf.c
+F: include/linux/btf*
+
+BPF [TRACING]
+S: Maintained
+F: kernel/trace/bpf_trace.c
+F: kernel/bpf/stackmap.c
+
+BPF [NETWORKING] (tc BPF, sock_addr)
+S: Maintained
+F: net/core/filter.c
+F: net/sched/act_bpf.c
+F: net/sched/cls_bpf.c
+
+BPF [NETWORKING] (struct_ops, reuseport)
+S: Maintained
+F: kernel/bpf/bpf_struct*
+
+BPF [SECURITY & LSM] (Security Audit and Enforcement using BPF)
F: kernel/bpf/bpf_lsm.c
F: security/bpf/
-BPF L7 FRAMEWORK
+BPF [STORAGE & CGROUPS]
+S: Maintained
+F: kernel/bpf/cgroup.c
+F: kernel/bpf/*storage.c
+F: kernel/bpf/bpf_lru*
+
+BPF [RINGBUF]
+S: Maintained
+F: kernel/bpf/ringbuf.c
+
+BPF [ITERATOR]
+S: Maintained
+F: kernel/bpf/*iter.c
+
+BPF [L7 FRAMEWORK] (sockmap)
F: net/ipv4/udp_bpf.c
F: net/unix/unix_bpf.c
-BPFTOOL
+BPF [LIBRARY] (libbpf)
+S: Maintained
+F: tools/lib/bpf/
+
+BPF [TOOLING] (bpftool)
S: Maintained
F: kernel/bpf/disasm.*
F: tools/bpf/bpftool/
+BPF [SELFTESTS] (Test Runners & Infrastructure)
+S: Maintained
+F: tools/testing/selftests/bpf/
+
+BPF [MISC]
+S: Odd Fixes
+K: (?:\b|_)bpf(?:\b|_)
+
BROADCOM B44 10/100 ETHERNET DRIVER
S: Maintained
T: git git://github.com/broadcom/stblinux.git
F: Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
-F: arch/arm/boot/dts/bcm47622.dtsi
-F: arch/arm/boot/dts/bcm947622.dts
+F: arch/arm64/boot/dts/broadcom/bcmbca/*
N: bcmbca
N: bcm[9]?47622
+N: bcm[9]?4912
+N: bcm[9]?63138
+N: bcm[9]?63146
+N: bcm[9]?63148
+N: bcm[9]?63158
+N: bcm[9]?63178
+N: bcm[9]?6756
+N: bcm[9]?6813
+N: bcm[9]?6846
+N: bcm[9]?6855
+N: bcm[9]?6856
+N: bcm[9]?6858
+N: bcm[9]?6878
BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE
F: arch/arm/boot/dts/bcm47189*
F: arch/arm/boot/dts/bcm53573*
-BROADCOM BCM63XX ARM ARCHITECTURE
-S: Maintained
-T: git git://github.com/broadcom/stblinux.git
-N: bcm63xx
-
BROADCOM BCM63XX/BCM33XX UDC DRIVER
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git
-F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+F: Documentation/devicetree/bindings/interconnect/samsung,exynos-bus.yaml
F: drivers/devfreq/exynos-bus.c
BUSLOGIC SCSI DRIVER
F: Documentation/devicetree/bindings/sound/cirrus,cs*
F: include/dt-bindings/sound/cs*
F: sound/pci/hda/cs*
+F: sound/pci/hda/hda_cs_dsp_ctl.*
F: sound/soc/codecs/cs*
CIRRUS LOGIC DSP FIRMWARE DRIVER
S: Supported
B: https://github.com/ClangBuiltLinux/linux/issues
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/features
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: include/linux/cfi.h
F: kernel/cfi.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git
F: Documentation/devicetree/bindings/clock/
F: drivers/clk/
+F: include/dt-bindings/clock/
F: include/linux/clk-pr*
F: include/linux/clk/
F: include/linux/of_clk.h
S: Maintained
CONTEXT TRACKING
S: Maintained
F: kernel/context_tracking.c
F: include/linux/context_tracking*
F: drivers/hwmon/corsair-psu.c
COUNTER SUBSYSTEM
S: Maintained
+T: git https://git.linaro.org/people/william.gray/counter.git
F: Documentation/ABI/testing/sysfs-bus-counter
F: Documentation/driver-api/generic-counter.rst
F: drivers/counter/
F: drivers/net/ethernet/chelsio/cxgb3/
CXGB3 ISCSI DRIVER (CXGB3I)
-M: Karen Xie <kxie@chelsio.com>
+M: Varun Prakash <varun@chelsio.com>
S: Supported
W: http://www.chelsio.com
F: drivers/net/ethernet/chelsio/cxgb4/
CXGB4 ISCSI DRIVER (CXGB4I)
-M: Karen Xie <kxie@chelsio.com>
+M: Varun Prakash <varun@chelsio.com>
S: Supported
W: http://www.chelsio.com
S: Maintained
F: Documentation/ABI/testing/sysfs-kernel-mm-damon
F: Documentation/admin-guide/mm/damon/
-F: Documentation/vm/damon/
+F: Documentation/mm/damon/
F: include/linux/damon.h
F: include/trace/events/damon.h
F: mm/damon/
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git
F: Documentation/devicetree/bindings/devfreq/
+F: Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml
F: drivers/devfreq/
F: include/linux/devfreq.h
F: include/trace/events/devfreq.h
F: Documentation/devicetree/bindings/input/da90??-onkey.txt
F: Documentation/devicetree/bindings/input/dlg,da72??.txt
F: Documentation/devicetree/bindings/mfd/da90*.txt
+F: Documentation/devicetree/bindings/mfd/da90*.yaml
F: Documentation/devicetree/bindings/regulator/dlg,da9*.yaml
F: Documentation/devicetree/bindings/regulator/da92*.txt
F: Documentation/devicetree/bindings/regulator/slg51000.txt
F: sound/soc/codecs/da[79]*.[ch]
DIAMOND SYSTEMS GPIO-MM GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-gpio-mm.c
F: Documentation/devicetree/bindings/dma/
F: Documentation/driver-api/dmaengine/
F: drivers/dma/
+F: include/dt-bindings/dma/
F: include/linux/dma/
F: include/linux/dmaengine.h
F: include/linux/of_dma.h
S: Supported
W: http://git.infradead.org/users/hch/dma-mapping.git
DMA MAPPING BENCHMARK
F: kernel/dma/map_benchmark.c
F: tools/testing/selftests/dma/
F: drivers/net/ethernet/freescale/dpaa2/dpaa2-switch*
F: drivers/net/ethernet/freescale/dpaa2/dpsw*
-DPT_I2O SCSI RAID DRIVER
-S: Maintained
-W: http://www.adaptec.com/
-F: drivers/scsi/dpt*
-F: drivers/scsi/dpt/
-
DRBD DRIVER
F: Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
F: drivers/gpu/drm/bridge/chipone-icn6211.c
+DRM DRIVER FOR EBBG FT8719 PANEL
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
+F: drivers/gpu/drm/panel/panel-ebbg-ft8719.c
+
DRM DRIVER FOR FARADAY TVE200 TV ENCODER
S: Maintained
F: drivers/gpu/drm/i810/
F: include/uapi/drm/i810_drm.h
+DRM DRIVER FOR LOGICVC DISPLAY CONTROLLER
+S: Supported
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/logicvc/
+
DRM DRIVER FOR LVDS PANELS
F: drivers/gpu/drm/savage/
F: include/uapi/drm/savage_drm.h
-DRM DRIVER FOR SIMPLE FRAMEBUFFERS
+DRM DRIVER FOR FIRMWARE FRAMEBUFFERS
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/drm_aperture.c
F: drivers/gpu/drm/tiny/simpledrm.c
+F: drivers/video/aperture.c
+F: include/drm/drm_aperture.h
+F: include/linux/aperture.h
DRM DRIVER FOR SIS VIDEO CARDS
S: Orphan / Obsolete
S: Orphan / Obsolete
F: drivers/gpu/drm/tdfx/
+DRM DRIVER FOR TI DLPC3433 MIPI DSI TO DMD BRIDGE
+S: Maintained
+F: Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml
+F: drivers/gpu/drm/bridge/ti-dlpc3433.c
+
DRM DRIVER FOR TI SN65DSI86 BRIDGE CHIP
F: Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
DRM DRIVERS FOR EXYNOS
F: drivers/gpu/drm/imx/
F: drivers/gpu/ipu-v3/
+DRM DRIVERS FOR FREESCALE IMX BRIDGE
+S: Maintained
+F: Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-ldb.yaml
+F: Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-combiner.yaml
+F: Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-link.yaml
+F: Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
+F: drivers/gpu/drm/bridge/imx/
+
DRM DRIVERS FOR GMA500 (Poulsbo, Moorestown and derivative chipsets)
S: Supported
F: Documentation/devicetree/bindings/display/mediatek/
F: drivers/gpu/drm/mediatek/
+F: drivers/phy/mediatek/phy-mtk-dp.c
F: drivers/phy/mediatek/phy-mtk-hdmi*
F: drivers/phy/mediatek/phy-mtk-mipi*
S: Supported
T: git git://anongit.freedesktop.org/tegra/linux.git
-F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
F: Documentation/devicetree/bindings/gpu/host1x/
F: drivers/gpu/drm/tegra/
F: drivers/gpu/host1x/
DRM DRIVERS FOR V3D
S: Supported
T: git git://anongit.freedesktop.org/drm/drm-misc
F: Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml
S: Maintained
F: drivers/net/ethernet/ibm/ehea/
+ELM327 CAN NETWORK DRIVER
+S: Maintained
+F: Documentation/networking/device_drivers/can/can327.rst
+F: drivers/net/can/can327.c
+
EM28XX VIDEO4LINUX DRIVER
F: drivers/media/usb/em28xx/
EMBEDDED LINUX
-M: Matt Mackall <mpm@selenic.com>
+M: Olivia Mackall <olivia@selenic.com>
S: Maintained
EROFS FILE SYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
F: include/linux/errseq.h
F: lib/errseq.c
+ESD CAN/USB DRIVERS
+S: Maintained
+F: drivers/net/can/usb/esd_usb.c
+
ET131X NETWORK DRIVER
S: Odd Fixes
EXYNOS SYSMMU (IOMMU) driver
S: Maintained
F: drivers/iommu/exynos-iommu.c
F: include/linux/fs_types.h
F: include/uapi/linux/fs.h
F: include/uapi/linux/openat2.h
-X: fs/io-wq.c
-X: fs/io-wq.h
-X: fs/io_uring.c
FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
S: Supported
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: include/linux/fortify-string.h
F: lib/test_fortify/*
F: scripts/test_fortify.sh
F: drivers/fpga/
F: include/linux/fpga/
+INTEL MAX10 BMC SECURE UPDATES
+S: Maintained
+F: Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
+F: drivers/fpga/intel-m10-bmc-sec-update.c
+
+MICROCHIP POLARFIRE FPGA DRIVERS
+S: Supported
+F: Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml
+F: drivers/fpga/microchip-spi.c
+
FPU EMULATOR
S: Maintained
S: Maintained
F: drivers/video/fbdev/imxfb.c
-F: include/linux/platform_data/video-imxfb.h
FREESCALE IMX DDR PMU DRIVER
S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: Documentation/kbuild/gcc-plugins.rst
F: scripts/Makefile.gcc-plugins
F: scripts/gcc-plugins/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git
F: Documentation/devicetree/bindings/phy/
F: drivers/phy/
+F: include/dt-bindings/phy/
F: include/linux/phy/
GENERIC PINCTRL I2C DEMULTIPLEXER DRIVER
S: Maintained
F: Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
+F: Documentation/devicetree/bindings/media/rockchip,rk3568-vepu.yaml
F: Documentation/devicetree/bindings/media/rockchip-vpu.yaml
F: drivers/staging/media/hantro/
K: (devm_)?hwmon_device_(un)?register(|_with_groups|_with_info)
HARDWARE RANDOM NUMBER GENERATOR CORE
-M: Matt Mackall <mpm@selenic.com>
+M: Olivia Mackall <olivia@selenic.com>
S: Odd fixes
F: Documentation/admin-guide/perf/hisi-pmu.rst
F: drivers/perf/hisilicon
-HISILICON QM AND ZIP Controller DRIVER
+HISILICON HNS3 PMU DRIVER
+S: Supported
+F: Documentation/admin-guide/perf/hns3-pmu.rst
+F: drivers/perf/hisilicon/hns3_pmu.c
+
+HISILICON QM DRIVER
S: Maintained
-F: Documentation/ABI/testing/debugfs-hisi-zip
+F: drivers/crypto/hisilicon/Kconfig
+F: drivers/crypto/hisilicon/Makefile
F: drivers/crypto/hisilicon/qm.c
F: drivers/crypto/hisilicon/sgl.c
-F: drivers/crypto/hisilicon/zip/
F: include/linux/hisi_acc_qm.h
+HISILICON ZIP Controller DRIVER
+S: Maintained
+F: Documentation/ABI/testing/debugfs-hisi-zip
+F: drivers/crypto/hisilicon/zip/
+
HISILICON ROCE DRIVER
S: Maintained
-F: Documentation/vm/hmm.rst
+F: Documentation/mm/hmm.rst
F: include/linux/hmm*
F: lib/test_hmm*
F: mm/hmm*
S: Maintained
F: Documentation/ABI/testing/sysfs-kernel-mm-hugepages
F: Documentation/admin-guide/mm/hugetlbpage.rst
-F: Documentation/vm/hugetlbfs_reserv.rst
-F: Documentation/vm/vmemmap_dedup.rst
+F: Documentation/mm/hugetlbfs_reserv.rst
+F: Documentation/mm/vmemmap_dedup.rst
F: fs/hugetlbfs/
F: include/linux/hugetlb.h
F: mm/hugetlb.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
F: Documentation/ABI/stable/sysfs-bus-vmbus
F: Documentation/ABI/testing/debugfs-hyperv
+F: Documentation/virt/hyperv
F: Documentation/networking/device_drivers/ethernet/microsoft/netvsc.rst
F: arch/arm64/hyperv
F: arch/arm64/include/asm/hyperv-tlfs.h
IDMAPPED MOUNTS
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
F: Documentation/devicetree/bindings/iio/
F: drivers/iio/
F: drivers/staging/iio/
+F: include/dt-bindings/iio/
F: include/linux/iio/
F: tools/iio/
S: Maintained
F: drivers/video/fbdev/i810/
+INTEL 8255 GPIO DRIVER
+S: Maintained
+F: drivers/gpio/gpio-i8255.c
+F: drivers/gpio/gpio-i8255.h
+
INTEL ASoC DRIVERS
S: Supported
F: sound/soc/intel/
Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
F: drivers/dma/ioat*
-INTEL IADX DRIVER
+INTEL IDXD DRIVER
S: Supported
INTEL IOMMU (VT-d)
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
F: drivers/iommu/intel/
-F: include/linux/intel-iommu.h
F: include/linux/intel-svm.h
INTEL IOP-ADMA DMA DRIVER
INTEL PMIC MULTIFUNCTION DEVICE DRIVERS
-S: Maintained
+S: Supported
F: drivers/mfd/intel_soc_pmic*
F: include/linux/mfd/intel_soc_pmic*
F: fs/iomap/
F: include/linux/iomap.h
-IOMMU DRIVERS
+IOMMU DMA-API LAYER
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+F: drivers/iommu/dma-iommu.c
+F: drivers/iommu/iova.c
+F: include/linux/dma-iommu.h
+F: include/linux/iova.h
+
+IOMMU SUBSYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
S: Maintained
T: git git://git.kernel.dk/linux-block
T: git git://git.kernel.dk/liburing
-F: fs/io-wq.c
-F: fs/io-wq.h
-F: fs/io_uring.c
+F: io_uring/
F: include/linux/io_uring.h
F: include/uapi/linux/io_uring.h
F: tools/io_uring/
F: drivers/irqchip/
ISA
S: Maintained
F: Documentation/driver-api/isa.rst
F: drivers/base/isa.c
F: scripts/mod/
F: scripts/package/
+KERNEL HARDENING (not covered by other areas)
+S: Supported
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
+F: include/linux/overflow.h
+F: include/linux/randomize_kstack.h
+F: mm/usercopy.c
+K: \b(add|choose)_random_kstack_offset\b
+K: \b__check_(object_size|heap_object)\b
+
KERNEL JANITORS
S: Odd Fixes
KERNEL UNIT TESTING FRAMEWORK (KUnit)
S: Maintained
LINUX FOR POWERPC (32-BIT AND 64-BIT)
S: Supported
W: https://github.com/linuxppc/wiki/wiki
LOADPIN SECURITY MODULE
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: Documentation/admin-guide/LSM/LoadPin.rst
F: security/loadpin/
F: Documentation/devicetree/bindings/*/maxim,max77693.yaml
F: Documentation/devicetree/bindings/*/maxim,max77843.yaml
F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
-F: Documentation/devicetree/bindings/mfd/max77693.txt
F: drivers/*/*max77843.c
F: drivers/*/max14577*.c
F: drivers/*/max77686*.c
F: drivers/net/ieee802154/mcr20a.h
MEASUREMENT COMPUTING CIO-DAC IIO DRIVER
S: Maintained
F: drivers/iio/dac/cio-dac.c
F: Documentation/userspace-api/media/
F: drivers/media/
F: drivers/staging/media/
+F: include/dt-bindings/media/
F: include/linux/platform_data/media/
F: include/media/
F: include/uapi/linux/dvb/
MEDIATEK IOMMU DRIVER
S: Supported
MEDIATEK MEDIA DRIVER
S: Supported
F: Documentation/devicetree/bindings/media/mediatek,vcodec*.yaml
F: Documentation/devicetree/bindings/media/mediatek-vpu.txt
S: Maintained
F: Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
+F: Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
F: drivers/net/dsa/microchip/*
F: include/linux/platform_data/microchip-ksz.h
F: net/dsa/tag_ksz.c
F: Documentation/devicetree/bindings/mtd/atmel-nand.txt
F: drivers/mtd/nand/raw/atmel/*
+MICROCHIP OTPC DRIVER
+S: Supported
+F: Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml
+F: drivers/nvmem/microchip-otpc.c
+F: include/dt-bindings/nvmem/microchip,sama7g5-otpc.h
+
MICROCHIP PWM DRIVER
F: include/linux/cciss*.h
F: include/uapi/linux/cciss*.h
+MICROSOFT SURFACE AGGREGATOR TABLET-MODE SWITCH
+S: Maintained
+F: drivers/platform/surface/surface_aggregator_tabletsw.c
+
MICROSOFT SURFACE BATTERY AND AC DRIVERS
F: include/linux/surface_aggregator/
F: include/uapi/linux/surface_aggregator/
+MICROSOFT SURFACE SYSTEM AGGREGATOR HUB DRIVER
+S: Maintained
+F: drivers/platform/surface/surface_aggregator_hub.c
+
MICROTEK X6 SCANNER
S: Maintained
F: Documentation/mips/
F: arch/mips/
F: drivers/platform/mips/
+F: include/dt-bindings/mips/
MIPS BOSTON DEVELOPMENT BOARD
F: drivers/media/i2c/mt9v111.c
MULTIFUNCTION DEVICES (MFD)
-M: Lee Jones <lee.jones@linaro.org>
+M: Lee Jones <lee@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
F: Documentation/devicetree/bindings/mfd/
S: Maintained
F: net/sched/sch_netem.c
-NETERION 10GbE DRIVERS (s2io/vxge)
+NETERION 10GbE DRIVERS (s2io)
S: Supported
F: Documentation/networking/device_drivers/ethernet/neterion/s2io.rst
-F: Documentation/networking/device_drivers/ethernet/neterion/vxge.rst
F: drivers/net/ethernet/neterion/
NETFILTER
W: http://git.infradead.org/nvme.git
T: git://git.infradead.org/nvme.git
F: drivers/nvme/host/
-F: include/linux/nvme.h
+F: drivers/nvme/common/
+F: include/linux/nvme*
F: include/uapi/linux/nvme_ioctl.h
NVM EXPRESS FC TRANSPORT DRIVERS
F: drivers/net/phy/nxp-c45-tja11xx.c
NXP FSPI DRIVER
S: Maintained
F: sound/soc/codecs/tfa989x.c
NXP-NCI NFC DRIVER
-S: Supported
+S: Orphan
F: Documentation/devicetree/bindings/net/nfc/nxp,nci.yaml
F: drivers/nfc/nxp-nci
S: Maintained
T: git git://linuxtv.org/media_tree.git
+F: Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
F: drivers/media/i2c/ov5693.c
OMNIVISION OV5695 SENSOR DRIVER
T: git git://linuxtv.org/media_tree.git
F: drivers/media/i2c/ov9734.c
+ONBOARD USB HUB DRIVER
+S: Maintained
+F: Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
+F: drivers/usb/misc/onboard_usb_hub.c
+
ONENAND FLASH DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-ocores.txt
+F: Documentation/devicetree/bindings/i2c/opencores,i2c-ocores.yaml
F: Documentation/i2c/busses/i2c-ocores.rst
F: drivers/i2c/busses/i2c-ocores.c
F: include/linux/platform_data/i2c-ocores.h
S: Maintained
-F: Documentation/vm/page_table_check.rst
+F: Documentation/mm/page_table_check.rst
F: include/linux/page_table_check.h
F: mm/page_table_check.c
S: Maintained
F: drivers/pci/controller/dwc/*spear*
+PCI DRIVER FOR XILINX VERSAL CPM
+S: Maintained
+F: Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
+F: drivers/pci/controller/pcie-xilinx-cpm.c
+
PCMCIA SUBSYSTEM
S: Odd Fixes
S: Maintained
PIN CONTROLLER - INTEL
-S: Maintained
+S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git
F: drivers/pinctrl/intel/
F: Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
F: drivers/iio/chemical/pms7003.c
-PLATFORM FEATURE INFRASTRUCTURE
-S: Maintained
-F: arch/*/include/asm/platform-feature.h
-F: include/asm-generic/platform-feature.h
-F: include/linux/platform-feature.h
-F: kernel/platform-feature.c
-
PLDMFW LIBRARY
S: Maintained
PWM SUBSYSTEM
S: Maintained
Q: https://patchwork.ozlabs.org/project/linux-pwm/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git
-F: Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+F: Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml
F: Documentation/devicetree/bindings/pwm/
F: Documentation/driver-api/pwm.rst
F: drivers/gpio/gpio-mvebu.c
F: drivers/pwm/
F: drivers/video/backlight/pwm_bl.c
+F: include/dt-bindings/pwm/
F: include/linux/pwm.h
F: include/linux/pwm_backlight.h
K: pwm_(config|apply_state|ops)
QCOM AUDIO (ASoC) DRIVERS
-M: Banajit Goswami <bgoswami@codeaurora.org>
+M: Banajit Goswami <bgoswami@quicinc.com>
S: Supported
+F: include/dt-bindings/sound/qcom,wcd9335.h
+F: sound/soc/codecs/lpass-rx-macro.*
+F: sound/soc/codecs/lpass-tx-macro.*
F: sound/soc/codecs/lpass-va-macro.c
F: sound/soc/codecs/lpass-wsa-macro.*
F: sound/soc/codecs/msm8916-wcd-analog.c
F: sound/soc/codecs/wcd9335.*
F: sound/soc/codecs/wcd934x.c
F: sound/soc/codecs/wcd-clsh-v2.*
+F: sound/soc/codecs/wcd-mbhc-v2.*
F: sound/soc/codecs/wsa881x.c
+F: sound/soc/codecs/wsa883x.c
F: sound/soc/qcom/
QCOM EMBEDDED USB DEBUGGER (EUD)
F: Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt
F: drivers/i2c/busses/i2c-qcom-cci.c
+QUALCOMM INTERCONNECT BWMON DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
+F: drivers/soc/qcom/icc-bwmon.c
+
QUALCOMM IOMMU
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
F: drivers/iio/adc/rzg2l_adc.c
+RENESAS RZ/N1 A5PSW SWITCH DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
+F: Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
+F: drivers/net/dsa/rzn1_a5psw*
+F: drivers/net/pcs/pcs-rzn1-miic.c
+F: include/dt-bindings/net/pcs-rzn1-miic.h
+F: include/linux/pcs-rzn1-miic.h
+F: net/dsa/tag_rzn1_a5psw.c
+
RENESAS RZ/N1 RTC CONTROLLER DRIVER
K: riscv
RISC-V/MICROCHIP POLARFIRE SOC SUPPORT
S: Supported
F: arch/riscv/boot/dts/microchip/
+F: drivers/char/hw_random/mpfs-rng.c
+F: drivers/clk/microchip/clk-mpfs.c
F: drivers/mailbox/mailbox-mpfs.c
+F: drivers/pci/controller/pcie-microchip-host.c
F: drivers/soc/microchip/
+F: drivers/spi/spi-microchip-core.c
+F: drivers/usb/musb/mpfs.c
F: include/soc/microchip/mpfs.h
RNBD BLOCK DRIVERS
S: Supported
W: http://www.ibm.com/developerworks/linux/linux390/
-F: Documentation/s390/vfio-ap.rst
+F: Documentation/s390/vfio-ap*
F: drivers/s390/crypto/vfio_ap*
S390 VFIO-CCW DRIVER
S: Supported
+F: arch/s390/kvm/pci*
F: drivers/vfio/pci/vfio_pci_zdev.c
F: include/uapi/linux/vfio_zdev.h
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git seccomp
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/seccomp
F: Documentation/userspace-api/seccomp_filter.rst
F: include/linux/seccomp.h
F: include/uapi/linux/seccomp.h
F: Documentation/admin-guide/security-bugs.rst
SECURITY SUBSYSTEM
S: Supported
W: http://kernsec.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm.git
F: security/
X: security/selinux/
S: Maintained
+F: Documentation/devicetree/bindings/net/sff,sfp.yaml
F: drivers/net/phy/phylink.c
F: drivers/net/phy/sfp*
F: include/linux/mdio/mdio-i2c.h
SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
S: Supported
W: http://www.ibm.com/developerworks/linux/linux390/
F: include/linux/sl?b*.h
F: mm/sl?b*
+SLCAN CAN NETWORK DRIVER
+S: Maintained
+F: drivers/net/can/slcan/
+
SLEEPABLE READ-COPY UPDATE (SRCU)
S: Supported
+Q: https://patchwork.kernel.org/project/linux-raid/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git
F: drivers/md/Kconfig
F: drivers/md/Makefile
SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS
S: Supported
SPI NOR SUBSYSTEM
S: Maintained
STAGING - REALTEK RTL8188EU DRIVERS
S: Supported
F: drivers/staging/r8188eu/
SWIOTLB SUBSYSTEM
S: Supported
W: http://git.infradead.org/users/hch/dma-mapping.git
F: drivers/mmc/host/sdhci-pci-dwc-mshc.c
SYSTEM CONFIGURATION (SYSCON)
-M: Lee Jones <lee.jones@linaro.org>
+M: Lee Jones <lee@kernel.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
S: Maintained
-F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
F: drivers/staging/media/tegra-video/
TEGRA XUSB PADCTL DRIVER
F: Documentation/devicetree/bindings/thermal/
F: Documentation/driver-api/thermal/
F: drivers/thermal/
+F: include/dt-bindings/thermal/
F: include/linux/cpu_cooling.h
F: include/linux/thermal.h
F: include/uapi/linux/thermal.h
TRADITIONAL CHINESE DOCUMENTATION
S: Maintained
W: https://github.com/srcres258/linux-doc
T: git git://github.com/srcres258/linux-doc.git doc-zh-tw
F: Documentation/filesystems/ubifs.rst
F: fs/ubifs/
+UBLK USERSPACE BLOCK DRIVER
+S: Maintained
+F: drivers/block/ublk_drv.c
+F: include/uapi/linux/ublk_cmd.h
+
UCLINUX (M68KNOMMU AND COLDFIRE)
S: Maintained
F: drivers/ufs/host/ufs-mediatek*
+UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER RENESAS HOOKS
+S: Maintained
+F: drivers/ufs/host/ufs-renesas.c
+
UNSORTED BLOCK IMAGES (UBI)
S: Maintained
F: Documentation/filesystems/vfat.rst
F: fs/fat/
+ F: tools/testing/selftests/filesystems/fat/
VFIO DRIVER
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-vdpa
+F: Documentation/ABI/testing/sysfs-class-vduse
F: Documentation/devicetree/bindings/virtio/
F: drivers/block/virtio_blk.c
F: drivers/crypto/virtio/
-S: Maintained
+S: Odd fixes
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
F: Documentation/driver-api/vme.rst
F: drivers/staging/vme_user/
-F: drivers/vme/
-F: include/linux/vme*
VM SOCKETS (AF_VSOCK)
S: Maintained
F: drivers/input/tablet/wacom_serial4.c
+WANGXUN ETHERNET DRIVER
+S: Maintained
+F: Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst
+F: drivers/net/ethernet/wangxun/
+
WATCHDOG DEVICE DRIVERS
F: drivers/media/rc/winbond-cir.c
WINSYSTEMS EBC-C384 WATCHDOG DRIVER
S: Maintained
F: drivers/watchdog/ebc-c384_wdt.c
WINSYSTEMS WS16C48 GPIO DRIVER
S: Maintained
F: drivers/gpio/gpio-ws16c48.c
F: include/uapi/linux/xdp_diag.h
F: include/net/netns/xdp.h
F: net/xdp/
-F: samples/bpf/xdpsock*
-F: tools/lib/bpf/xsk*
+F: tools/testing/selftests/bpf/*xsk*
XEN BLOCK SUBSYSTEM
S: Supported
F: arch/x86/xen/*swiotlb*
YAMA SECURITY MODULE
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
F: Documentation/admin-guide/LSM/Yama.rst
F: security/yama/
S: Maintained
-F: Documentation/vm/zsmalloc.rst
+F: Documentation/mm/zsmalloc.rst
F: include/linux/zsmalloc.h
F: mm/zsmalloc.c
#include <linux/stackprotector.h>
#include <linux/pgtable.h>
#include <linux/clockchips.h>
+#include <linux/kexec.h>
#include <asm/ptrace.h>
#include <linux/atomic.h>
#endif
#include <asm/vdso.h>
#include <asm/debug.h>
-#include <asm/kexec.h>
#include <asm/cpu_has_feature.h>
#include <asm/ftrace.h>
#include <asm/kup.h>
}
#endif
-#ifdef CONFIG_NMI_IPI
-static void crash_stop_this_cpu(struct pt_regs *regs)
-#else
-static void crash_stop_this_cpu(void *dummy)
-#endif
-{
- /*
- * Just busy wait here and avoid marking CPU as offline to ensure
- * register data is captured appropriately.
- */
- while (1)
- cpu_relax();
-}
-
void crash_smp_send_stop(void)
{
static bool stopped = false;
stopped = true;
-#ifdef CONFIG_NMI_IPI
- smp_send_nmi_ipi(NMI_IPI_ALL_OTHERS, crash_stop_this_cpu, 1000000);
-#else
- smp_call_function(crash_stop_this_cpu, NULL, 0);
-#endif /* CONFIG_NMI_IPI */
+#ifdef CONFIG_KEXEC_CORE
+ if (kexec_crash_image) {
+ crash_kexec_prepare();
+ return;
+ }
+#endif
+
+ smp_send_stop();
}
#ifdef CONFIG_NMI_IPI
BUG();
}
- #ifdef CONFIG_PROFILING
- int setup_profiling_timer(unsigned int multiplier)
- {
- return 0;
- }
- #endif
-
static void __init fixup_topology(void)
{
int i;
unsigned long bits ____cacheline_aligned;
} ipi_data[NR_CPUS] __cacheline_aligned;
-int riscv_hartid_to_cpuid(int hartid)
+int riscv_hartid_to_cpuid(unsigned long hartid)
{
int i;
if (cpuid_to_hartid_map(i) == hartid)
return i;
- pr_err("Couldn't find cpu id for hartid [%d]\n", hartid);
+ pr_err("Couldn't find cpu id for hartid [%lu]\n", hartid);
return -ENOENT;
}
return phys_id == cpuid_to_hartid_map(cpu);
}
- /* Unsupported */
- int setup_profiling_timer(unsigned int multiplier)
- {
- return -EINVAL;
- }
-
static void ipi_stop(void)
{
set_cpu_online(smp_processor_id(), false);
unsigned long flags;
local_irq_save(flags);
- apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(id));
+ apic_write(APIC_ICR2, SET_XAPIC_DEST_FIELD(id));
apic_write(APIC_ICR, low);
local_irq_restore(flags);
}
set_irq_regs(old_regs);
}
- int setup_profiling_timer(unsigned int multiplier)
- {
- return -EINVAL;
- }
-
/*
* Local APIC start and shutdown
*/
#include "squashfs_fs_sb.h"
#include "squashfs_fs_i.h"
#include "squashfs.h"
+ #include "page_actor.h"
/*
* Locate cache slot in range [offset, index] for specified inode. If
int expected = index == file_end ?
(i_size_read(inode) & (msblk->block_size - 1)) :
msblk->block_size;
- int res;
+ int res = 0;
void *pageaddr;
TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n",
if (index < file_end || squashfs_i(inode)->fragment_block ==
SQUASHFS_INVALID_BLK) {
u64 block = 0;
- int bsize = read_blocklist(inode, index, &block);
- if (bsize < 0)
+
+ res = read_blocklist(inode, index, &block);
+ if (res < 0)
goto error_out;
- if (bsize == 0)
+ if (res == 0)
res = squashfs_readpage_sparse(page, expected);
else
- res = squashfs_readpage_block(page, block, bsize, expected);
+ res = squashfs_readpage_block(page, block, res, expected);
} else
res = squashfs_readpage_fragment(page, expected);
memset(pageaddr, 0, PAGE_SIZE);
kunmap_atomic(pageaddr);
flush_dcache_page(page);
- if (!PageError(page))
+ if (res == 0)
SetPageUptodate(page);
unlock_page(page);
- return 0;
+ return res;
}
+ static int squashfs_readahead_fragment(struct page **page,
+ unsigned int pages, unsigned int expected)
+ {
+ struct inode *inode = page[0]->mapping->host;
+ struct squashfs_cache_entry *buffer = squashfs_get_fragment(inode->i_sb,
+ squashfs_i(inode)->fragment_block,
+ squashfs_i(inode)->fragment_size);
+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+ unsigned int n, mask = (1 << (msblk->block_log - PAGE_SHIFT)) - 1;
+
+ if (buffer->error)
+ goto out;
+
+ expected += squashfs_i(inode)->fragment_offset;
+
+ for (n = 0; n < pages; n++) {
+ unsigned int base = (page[n]->index & mask) << PAGE_SHIFT;
+ unsigned int offset = base + squashfs_i(inode)->fragment_offset;
+
+ if (expected > offset) {
+ unsigned int avail = min_t(unsigned int, expected -
+ offset, PAGE_SIZE);
+
+ squashfs_fill_page(page[n], buffer, offset, avail);
+ }
+
+ unlock_page(page[n]);
+ put_page(page[n]);
+ }
+
+ out:
+ squashfs_cache_put(buffer);
+ return buffer->error;
+ }
+
+ static void squashfs_readahead(struct readahead_control *ractl)
+ {
+ struct inode *inode = ractl->mapping->host;
+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+ size_t mask = (1UL << msblk->block_log) - 1;
+ unsigned short shift = msblk->block_log - PAGE_SHIFT;
+ loff_t start = readahead_pos(ractl) & ~mask;
+ size_t len = readahead_length(ractl) + readahead_pos(ractl) - start;
+ struct squashfs_page_actor *actor;
+ unsigned int nr_pages = 0;
+ struct page **pages;
+ int i, file_end = i_size_read(inode) >> msblk->block_log;
+ unsigned int max_pages = 1UL << shift;
+
+ readahead_expand(ractl, start, (len | mask) + 1);
+
+ pages = kmalloc_array(max_pages, sizeof(void *), GFP_KERNEL);
+ if (!pages)
+ return;
+
+ for (;;) {
+ pgoff_t index;
+ int res, bsize;
+ u64 block = 0;
+ unsigned int expected;
+
+ nr_pages = __readahead_batch(ractl, pages, max_pages);
+ if (!nr_pages)
+ break;
+
+ if (readahead_pos(ractl) >= i_size_read(inode))
+ goto skip_pages;
+
+ index = pages[0]->index >> shift;
+ if ((pages[nr_pages - 1]->index >> shift) != index)
+ goto skip_pages;
+
+ expected = index == file_end ?
+ (i_size_read(inode) & (msblk->block_size - 1)) :
+ msblk->block_size;
+
+ if (index == file_end && squashfs_i(inode)->fragment_block !=
+ SQUASHFS_INVALID_BLK) {
+ res = squashfs_readahead_fragment(pages, nr_pages,
+ expected);
+ if (res)
+ goto skip_pages;
+ continue;
+ }
+
+ bsize = read_blocklist(inode, index, &block);
+ if (bsize == 0)
+ goto skip_pages;
+
+ actor = squashfs_page_actor_init_special(msblk, pages, nr_pages,
+ expected);
+ if (!actor)
+ goto skip_pages;
+
+ res = squashfs_read_data(inode->i_sb, block, bsize, NULL, actor);
+
+ kfree(actor);
+
+ if (res == expected) {
+ int bytes;
+
+ /* Last page (if present) may have trailing bytes not filled */
+ bytes = res % PAGE_SIZE;
+ if (pages[nr_pages - 1]->index == file_end && bytes)
+ memzero_page(pages[nr_pages - 1], bytes,
+ PAGE_SIZE - bytes);
+
+ for (i = 0; i < nr_pages; i++) {
+ flush_dcache_page(pages[i]);
+ SetPageUptodate(pages[i]);
+ }
+ }
+
+ for (i = 0; i < nr_pages; i++) {
+ unlock_page(pages[i]);
+ put_page(pages[i]);
+ }
+ }
+
+ kfree(pages);
+ return;
+
+ skip_pages:
+ for (i = 0; i < nr_pages; i++) {
+ unlock_page(pages[i]);
+ put_page(pages[i]);
+ }
+ kfree(pages);
+ }
const struct address_space_operations squashfs_aops = {
- .read_folio = squashfs_read_folio
+ .read_folio = squashfs_read_folio,
+ .readahead = squashfs_readahead
};
return cpu;
}
- #if NR_CPUS == 1
- /* Uniprocessor. Assume all masks are "1". */
- static inline unsigned int cpumask_first(const struct cpumask *srcp)
- {
- return 0;
- }
-
- static inline unsigned int cpumask_first_zero(const struct cpumask *srcp)
- {
- return 0;
- }
-
- static inline unsigned int cpumask_first_and(const struct cpumask *srcp1,
- const struct cpumask *srcp2)
- {
- return 0;
- }
-
- static inline unsigned int cpumask_last(const struct cpumask *srcp)
- {
- return 0;
- }
-
- /* Valid inputs for n are -1 and 0. */
- static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
- {
- return n+1;
- }
-
- static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
- {
- return n+1;
- }
-
- static inline unsigned int cpumask_next_and(int n,
- const struct cpumask *srcp,
- const struct cpumask *andp)
- {
- return n+1;
- }
-
- static inline unsigned int cpumask_next_wrap(int n, const struct cpumask *mask,
- int start, bool wrap)
- {
- /* cpu0 unless stop condition, wrap and at cpu0, then nr_cpumask_bits */
- return (wrap && n == 0);
- }
-
- /* cpu must be a valid cpu, ie 0, so there's no other choice. */
- static inline unsigned int cpumask_any_but(const struct cpumask *mask,
- unsigned int cpu)
- {
- return 1;
- }
-
- static inline unsigned int cpumask_local_spread(unsigned int i, int node)
- {
- return 0;
- }
-
- static inline int cpumask_any_and_distribute(const struct cpumask *src1p,
- const struct cpumask *src2p) {
- return cpumask_first_and(src1p, src2p);
- }
-
- static inline int cpumask_any_distribute(const struct cpumask *srcp)
- {
- return cpumask_first(srcp);
- }
-
- #define for_each_cpu(cpu, mask) \
- for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
- #define for_each_cpu_not(cpu, mask) \
- for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
- #define for_each_cpu_wrap(cpu, mask, start) \
- for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
- #define for_each_cpu_and(cpu, mask1, mask2) \
- for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask1, (void)mask2)
- #else
/**
* cpumask_first - get the first cpu in a cpumask
* @srcp: the cpumask pointer
int __pure cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
int __pure cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
+
+ #if NR_CPUS == 1
+ /* Uniprocessor: there is only one valid CPU */
+ static inline unsigned int cpumask_local_spread(unsigned int i, int node)
+ {
+ return 0;
+ }
+
+ static inline int cpumask_any_and_distribute(const struct cpumask *src1p,
+ const struct cpumask *src2p) {
+ return cpumask_first_and(src1p, src2p);
+ }
+
+ static inline int cpumask_any_distribute(const struct cpumask *srcp)
+ {
+ return cpumask_first(srcp);
+ }
+ #else
unsigned int cpumask_local_spread(unsigned int i, int node);
int cpumask_any_and_distribute(const struct cpumask *src1p,
const struct cpumask *src2p);
int cpumask_any_distribute(const struct cpumask *srcp);
+ #endif /* NR_CPUS */
/**
* for_each_cpu - iterate over every cpu in a mask
(cpu) = cpumask_next_zero((cpu), (mask)), \
(cpu) < nr_cpu_ids;)
- extern int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap);
+ int __pure cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap);
/**
* for_each_cpu_wrap - iterate over every cpu in a mask, starting at a specified location
for ((cpu) = -1; \
(cpu) = cpumask_next_and((cpu), (mask1), (mask2)), \
(cpu) < nr_cpu_ids;)
- #endif /* SMP */
#define CPU_BITS_NONE \
{ \
/* First bits of cpu_bit_bitmap are in fact unset. */
#define cpu_none_mask to_cpumask(cpu_bit_bitmap[0])
+ #if NR_CPUS == 1
+ /* Uniprocessor: the possible/online/present masks are always "1" */
+ #define for_each_possible_cpu(cpu) for ((cpu) = 0; (cpu) < 1; (cpu)++)
+ #define for_each_online_cpu(cpu) for ((cpu) = 0; (cpu) < 1; (cpu)++)
+ #define for_each_present_cpu(cpu) for ((cpu) = 0; (cpu) < 1; (cpu)++)
+ #else
#define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask)
#define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask)
#define for_each_present_cpu(cpu) for_each_cpu((cpu), cpu_present_mask)
+ #endif
/* Wrappers for arch boot code to manipulate normally-constant masks */
void init_cpu_present(const struct cpumask *src);
[0] = 1UL \
} }
+/*
+ * Provide a valid theoretical max size for cpumap and cpulist sysfs files
+ * to avoid breaking userspace which may allocate a buffer based on the size
+ * reported by e.g. fstat.
+ *
+ * for cpumap NR_CPUS * 9/32 - 1 should be an exact length.
+ *
+ * For cpulist 7 is (ceil(log10(NR_CPUS)) + 1) allowing for NR_CPUS to be up
+ * to 2 orders of magnitude larger than 8192. And then we divide by 2 to
+ * cover a worst-case of every other cpu being on one of two nodes for a
+ * very large NR_CPUS.
+ *
+ * Use PAGE_SIZE as a minimum for smaller configurations.
+ */
+#define CPUMAP_FILE_MAX_BYTES ((((NR_CPUS * 9)/32 - 1) > PAGE_SIZE) \
+ ? (NR_CPUS * 9)/32 - 1 : PAGE_SIZE)
+#define CPULIST_FILE_MAX_BYTES (((NR_CPUS * 7)/2 > PAGE_SIZE) ? (NR_CPUS * 7)/2 : PAGE_SIZE)
+
#endif /* __LINUX_CPUMASK_H */
struct sk_buff;
typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *,
unsigned int, size_t);
+typedef int (*skb_read_actor_t)(struct sock *, struct sk_buff *);
+
struct proto_ops {
int family;
*/
int (*read_sock)(struct sock *sk, read_descriptor_t *desc,
sk_read_actor_t recv_actor);
+ /* This is different from read_sock(), it reads an entire skb at a time. */
+ int (*read_skb)(struct sock *sk, skb_read_actor_t recv_actor);
int (*sendpage_locked)(struct sock *sk, struct page *page,
int offset, size_t size, int flags);
int (*sendmsg_locked)(struct sock *sk, struct msghdr *msg,
#define net_get_random_once(buf, nbytes) \
get_random_once((buf), (nbytes))
- #define net_get_random_once_wait(buf, nbytes) \
- get_random_once_wait((buf), (nbytes))
/*
* E.g. XFS meta- & log-data is in slab pages, or bcache meta
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/bsearch.h>
+#include <linux/btf_ids.h>
- /*
- * These will be re-linked against their real values
- * during the second link stage.
- */
- extern const unsigned long kallsyms_addresses[] __weak;
- extern const int kallsyms_offsets[] __weak;
- extern const u8 kallsyms_names[] __weak;
-
- /*
- * Tell the compiler that the count isn't in the small data section if the arch
- * has one (eg: FRV).
- */
- extern const unsigned int kallsyms_num_syms
- __section(".rodata") __attribute__((weak));
-
- extern const unsigned long kallsyms_relative_base
- __section(".rodata") __attribute__((weak));
-
- extern const char kallsyms_token_table[] __weak;
- extern const u16 kallsyms_token_index[] __weak;
-
- extern const unsigned int kallsyms_markers[] __weak;
+ #include "kallsyms_internal.h"
/*
* Expand a compressed symbol data into the resulting uncompressed string,
.show = s_show
};
+#ifdef CONFIG_BPF_SYSCALL
+
+struct bpf_iter__ksym {
+ __bpf_md_ptr(struct bpf_iter_meta *, meta);
+ __bpf_md_ptr(struct kallsym_iter *, ksym);
+};
+
+static int ksym_prog_seq_show(struct seq_file *m, bool in_stop)
+{
+ struct bpf_iter__ksym ctx;
+ struct bpf_iter_meta meta;
+ struct bpf_prog *prog;
+
+ meta.seq = m;
+ prog = bpf_iter_get_info(&meta, in_stop);
+ if (!prog)
+ return 0;
+
+ ctx.meta = &meta;
+ ctx.ksym = m ? m->private : NULL;
+ return bpf_iter_run_prog(prog, &ctx);
+}
+
+static int bpf_iter_ksym_seq_show(struct seq_file *m, void *p)
+{
+ return ksym_prog_seq_show(m, false);
+}
+
+static void bpf_iter_ksym_seq_stop(struct seq_file *m, void *p)
+{
+ if (!p)
+ (void) ksym_prog_seq_show(m, true);
+ else
+ s_stop(m, p);
+}
+
+static const struct seq_operations bpf_iter_ksym_ops = {
+ .start = s_start,
+ .next = s_next,
+ .stop = bpf_iter_ksym_seq_stop,
+ .show = bpf_iter_ksym_seq_show,
+};
+
+static int bpf_iter_ksym_init(void *priv_data, struct bpf_iter_aux_info *aux)
+{
+ struct kallsym_iter *iter = priv_data;
+
+ reset_iter(iter, 0);
+
+ /* cache here as in kallsyms_open() case; use current process
+ * credentials to tell BPF iterators if values should be shown.
+ */
+ iter->show_value = kallsyms_show_value(current_cred());
+
+ return 0;
+}
+
+DEFINE_BPF_ITER_FUNC(ksym, struct bpf_iter_meta *meta, struct kallsym_iter *ksym)
+
+static const struct bpf_iter_seq_info ksym_iter_seq_info = {
+ .seq_ops = &bpf_iter_ksym_ops,
+ .init_seq_private = bpf_iter_ksym_init,
+ .fini_seq_private = NULL,
+ .seq_priv_size = sizeof(struct kallsym_iter),
+};
+
+static struct bpf_iter_reg ksym_iter_reg_info = {
+ .target = "ksym",
+ .feature = BPF_ITER_RESCHED,
+ .ctx_arg_info_size = 1,
+ .ctx_arg_info = {
+ { offsetof(struct bpf_iter__ksym, ksym),
+ PTR_TO_BTF_ID_OR_NULL },
+ },
+ .seq_info = &ksym_iter_seq_info,
+};
+
+BTF_ID_LIST(btf_ksym_iter_id)
+BTF_ID(struct, kallsym_iter)
+
+static int __init bpf_ksym_iter_register(void)
+{
+ ksym_iter_reg_info.ctx_arg_info[0].btf_id = *btf_ksym_iter_id;
+ return bpf_iter_reg_target(&ksym_iter_reg_info);
+}
+
+late_initcall(bpf_ksym_iter_register);
+
+#endif /* CONFIG_BPF_SYSCALL */
+
static inline int kallsyms_for_perf(void)
{
#ifdef CONFIG_PERF_EVENTS
#include <linux/vmalloc.h>
#include "kexec_internal.h"
+#ifdef CONFIG_KEXEC_SIG
+static bool sig_enforce = IS_ENABLED(CONFIG_KEXEC_SIG_FORCE);
+
+void set_kexec_sig_enforced(void)
+{
+ sig_enforce = true;
+}
+#endif
+
static int kexec_calculate_store_digests(struct kimage *image);
+ /* Maximum size in bytes for kernel/initrd files. */
+ #define KEXEC_FILE_SIZE_MAX min_t(s64, 4LL << 30, SSIZE_MAX)
+
/*
* Currently this is the only default function that is exported as some
* architectures need it to do additional handlings.
return ret;
}
-/* Architectures can provide this probe function */
-int __weak arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
- unsigned long buf_len)
-{
- return kexec_image_probe_default(image, buf, buf_len);
-}
-
-static void *kexec_image_load_default(struct kimage *image)
+void *kexec_image_load_default(struct kimage *image)
{
if (!image->fops || !image->fops->load)
return ERR_PTR(-ENOEXEC);
image->cmdline_buf_len);
}
-void * __weak arch_kexec_kernel_image_load(struct kimage *image)
-{
- return kexec_image_load_default(image);
-}
-
int kexec_image_post_load_cleanup_default(struct kimage *image)
{
if (!image->fops || !image->fops->cleanup)
return image->fops->cleanup(image->image_loader_data);
}
-int __weak arch_kimage_file_post_load_cleanup(struct kimage *image)
-{
- return kexec_image_post_load_cleanup_default(image);
-}
-
-#ifdef CONFIG_KEXEC_SIG
-static int kexec_image_verify_sig_default(struct kimage *image, void *buf,
- unsigned long buf_len)
-{
- if (!image->fops || !image->fops->verify_sig) {
- pr_debug("kernel loader does not support signature verification.\n");
- return -EKEYREJECTED;
- }
-
- return image->fops->verify_sig(buf, buf_len);
-}
-
-int __weak arch_kexec_kernel_verify_sig(struct kimage *image, void *buf,
- unsigned long buf_len)
-{
- return kexec_image_verify_sig_default(image, buf, buf_len);
-}
-#endif
-
/*
* Free up memory used by kernel, initrd, and command line. This is temporary
* memory allocation which is not needed any more after these buffers have
}
#ifdef CONFIG_KEXEC_SIG
+#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
+int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len)
+{
+ int ret;
+
+ ret = verify_pefile_signature(kernel, kernel_len,
+ VERIFY_USE_SECONDARY_KEYRING,
+ VERIFYING_KEXEC_PE_SIGNATURE);
+ if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
+ ret = verify_pefile_signature(kernel, kernel_len,
+ VERIFY_USE_PLATFORM_KEYRING,
+ VERIFYING_KEXEC_PE_SIGNATURE);
+ }
+ return ret;
+}
+#endif
+
+static int kexec_image_verify_sig(struct kimage *image, void *buf,
+ unsigned long buf_len)
+{
+ if (!image->fops || !image->fops->verify_sig) {
+ pr_debug("kernel loader does not support signature verification.\n");
+ return -EKEYREJECTED;
+ }
+
+ return image->fops->verify_sig(buf, buf_len);
+}
+
static int
kimage_validate_signature(struct kimage *image)
{
int ret;
- ret = arch_kexec_kernel_verify_sig(image, image->kernel_buf,
- image->kernel_buf_len);
+ ret = kexec_image_verify_sig(image, image->kernel_buf,
+ image->kernel_buf_len);
if (ret) {
- if (IS_ENABLED(CONFIG_KEXEC_SIG_FORCE)) {
+ if (sig_enforce) {
pr_notice("Enforced kernel signature verification failed (%d).\n", ret);
return ret;
}
const char __user *cmdline_ptr,
unsigned long cmdline_len, unsigned flags)
{
- int ret;
+ ssize_t ret;
void *ldata;
ret = kernel_read_file_from_fd(kernel_fd, 0, &image->kernel_buf,
- INT_MAX, NULL, READING_KEXEC_IMAGE);
+ KEXEC_FILE_SIZE_MAX, NULL,
+ READING_KEXEC_IMAGE);
if (ret < 0)
return ret;
image->kernel_buf_len = ret;
/* It is possible that there no initramfs is being loaded */
if (!(flags & KEXEC_FILE_NO_INITRAMFS)) {
ret = kernel_read_file_from_fd(initrd_fd, 0, &image->initrd_buf,
- INT_MAX, NULL,
+ KEXEC_FILE_SIZE_MAX, NULL,
READING_KEXEC_INITRAMFS);
if (ret < 0)
goto out;
return ret == 1 ? 0 : -EADDRNOTAVAIL;
}
-/**
- * arch_kexec_locate_mem_hole - Find free memory to place the segments.
- * @kbuf: Parameters for the memory search.
- *
- * On success, kbuf->mem will have the start address of the memory region found.
- *
- * Return: 0 on success, negative errno on error.
- */
-int __weak arch_kexec_locate_mem_hole(struct kexec_buf *kbuf)
-{
- return kexec_locate_mem_hole(kbuf);
-}
-
/**
* kexec_add_buffer - place a buffer in a kexec segment
* @kbuf: Buffer contents and memory parameters.
mmio accesses when the IO memory address is not a registered
emulated region.
+config TRACE_MMIO_ACCESS
+ bool "Register read/write tracing"
+ depends on TRACING && ARCH_HAVE_TRACE_MMIO_ACCESS
+ help
+ Create tracepoints for MMIO read/write operations. These trace events
+ can be used for logging all MMIO read/write operations.
+
source "lib/crypto/Kconfig"
config LIB_MEMNEQ
bool
select STACKDEPOT
- config STACK_HASH_ORDER
- int "stack depot hash size (12 => 4KB, 20 => 1024KB)"
- range 12 20
- default 20
- depends on STACKDEPOT
- help
- Select the hash size as a power of 2 for the stackdepot hash table.
- Choose a lower value to reduce the memory impact.
-
config REF_TRACKER
bool
depends on STACKTRACE_SUPPORT
runtime stack traces are more reliable.
For more information, see
- tools/objtool/Documentation/stack-validation.txt.
+ tools/objtool/Documentation/objtool.txt.
config NOINSTR_VALIDATION
bool
help
Debug objects boot parameter default value
+config SHRINKER_DEBUG
+ bool "Enable shrinker debugging support"
+ depends on DEBUG_FS
+ help
+ Say Y to enable the shrinker debugfs interface which provides
+ visibility into the kernel memory shrinkers subsystem.
+ Disable it to avoid an extra memory footprint.
+
config HAVE_DEBUG_KMEMLEAK
bool
help
kobjects are reference counted objects. This means that their
last reference count put is not predictable, and the kobject can
- live on past the point at which a driver decides to drop it's
+ live on past the point at which a driver decides to drop its
initial reference to the kobject gained on allocation. An
example of this would be a struct device which has just been
unregistered.
Documentation on how to use the module can be found in
Documentation/fault-injection/provoke-crashes.rst
+ config TEST_CPUMASK
+ tristate "cpumask tests" if !KUNIT_ALL_TESTS
+ depends on KUNIT
+ default KUNIT_ALL_TESTS
+ help
+ Enable to turn on cpumask tests, running at boot or module load time.
+
+ If unsure, say N.
+
config TEST_LIST_SORT
tristate "Linked list sorting test" if !KUNIT_ALL_TESTS
depends on KUNIT
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o timerqueue.o xarray.o \
- idr.o extable.o sha1.o irq_regs.o argv_split.o \
+ idr.o extable.o irq_regs.o argv_split.o \
flex_proportions.o ratelimit.o show_mem.o \
is_single_threaded.o plist.o decompress.o kobject_uevent.o \
earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
nmi_backtrace.o nodemask.o win_minmax.o memcat_p.o \
- buildid.o
+ buildid.o cpumask.o
lib-$(CONFIG_PRINTK) += dump_stack.o
- lib-$(CONFIG_SMP) += cpumask.o
lib-y += kobject.o klist.o
obj-y += lockref.o
bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
list_sort.o uuid.o iov_iter.o clz_ctz.o \
bsearch.o find_bit.o llist.o memweight.o kfifo.o \
- percpu-refcount.o rhashtable.o \
+ percpu-refcount.o rhashtable.o base64.o \
once.o refcount.o usercopy.o errseq.o bucket_locks.o \
generic-radix-tree.o
obj-$(CONFIG_STRING_SELFTEST) += test_string.o
obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o
+ obj-$(CONFIG_TEST_CPUMASK) += test_cpumask.o
CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE)
obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o
#
lib-$(CONFIG_INDIRECT_IOMEM) += logic_iomem.o
+obj-$(CONFIG_TRACE_MMIO_ACCESS) += trace_readwrite.o
+
obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
obj-$(CONFIG_BTREE) += btree.o
TARGETS += filesystems
TARGETS += filesystems/binderfs
TARGETS += filesystems/epoll
+ TARGETS += filesystems/fat
TARGETS += firmware
TARGETS += fpu
TARGETS += ftrace
# Prepare for headers install
include $(top_srcdir)/scripts/subarch.include
ARCH ?= $(SUBARCH)
-export KSFT_KHDR_INSTALL_DONE := 1
export BUILD
export KHDR_INCLUDES
# all isn't the first target in the file.
.DEFAULT_GOAL := all
-# Install headers here once for all tests. KSFT_KHDR_INSTALL_DONE
-# is used to avoid running headers_install from lib.mk.
-# Invoke headers install with --no-builtin-rules to avoid circular
-# dependency in "make kselftest" case. In this case, second level
-# make inherits builtin-rules which will use the rule generate
-# Makefile.o and runs into
-# "Circular Makefile.o <- prepare dependency dropped."
-# and headers_install fails and test compile fails.
-#
-# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
-# invokes them as sub-makes and --no-builtin-rules is not necessary,
-# but doesn't cause any failures. Keep it simple and use the same
-# flags in both cases.
-# Local build cases: "make kselftest", "make -C" - headers are installed
-# in the default INSTALL_HDR_PATH usr/include.
-khdr:
-ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
- $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
-else
- $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$(abs_objtree)/usr \
- ARCH=$(ARCH) -C $(top_srcdir) headers_install
-endif
-
-all: khdr
+all:
@ret=1; \
for TARGET in $(TARGETS); do \
BUILD_TARGET=$$BUILD/$$TARGET; \
for TARGET in $(TARGETS); do \
BUILD_TARGET=$$BUILD/$$TARGET; \
[ ! -d $(INSTALL_PATH)/$$TARGET ] && echo "Skipping non-existent dir: $$TARGET" && continue; \
- echo -n "Emit Tests for $$TARGET\n"; \
+ echo -ne "Emit Tests for $$TARGET\n"; \
$(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET COLLECTION=$$TARGET \
-C $$TARGET emit_tests >> $(TEST_LIST); \
done;
$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
done;
-.PHONY: khdr all run_tests hotplug run_hotplug clean_hotplug run_pstore_crash install clean gen_tar
+.PHONY: all run_tests hotplug run_hotplug clean_hotplug run_pstore_crash install clean gen_tar
projects / linux.git / commitdiff