* tag 'tag-chrome-platform-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: Use imperative mood for ChromeOS ACPI sysfs ABI descriptions
platform/chrome: Use tables for values lists of ChromeOS ACPI sysfs ABI
platform/chrome: cros_ec_spi: drop BUG_ON() if `din` isn't large enough
platform/chrome: cros_ec_spi: drop unneeded BUG_ON()
platform/chrome: cros_ec_i2c: drop BUG_ON() in cros_ec_pkt_xfer_i2c()
platform/chrome: cros_ec_proto: drop BUG_ON() in cros_ec_get_host_event()
platform/chrome: cros_ec_proto: drop BUG_ON() in cros_ec_prepare_tx()
platform/chrome: correct cros_ec_prepare_tx() usage
platform/chrome: cros_ec_proto: drop unneeded BUG_ON() in prepare_packet()
platform/chrome: Add ChromeOS ACPI device driver
platform/chrome: cros_ec_typec: Check for EC driver
platform/chrome: cros_ec_lpcs: reserve the MEC LPC I/O ports first
platform/chrome: cros_ec_lpcs: detect the Framework Laptop
platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls
platform/chrome: cros_ec: append newline to all logs
platform/chrome: cros_ec: sort header inclusion alphabetically
platform/chrome: cros_ec: determine `wake_enabled` in cros_ec_suspend()
platform/chrome: cros_ec: remove unused variable `was_wake_device`
platform/chrome: cros_ec: fix error handling in cros_ec_register()
Sean Young [Thu, 26 May 2022 07:59:40 +0000 (08:59 +0100)]
media: lirc: add missing exceptions for lirc uapi header file
Commit 182eb57e3969 ("media: lirc: revert removal of unused feature
flags") reintroduced unused feature flags in the lirc uapi header, but
failed to reintroduce the necessary exceptions for the docs.
Fixes: 182eb57e3969 ("media: lirc: revert removal of unused feature flags") Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 26 May 2022 21:20:14 +0000 (14:20 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"S390:
- ultravisor communication device driver
- fix TEID on terminating storage key ops
RISC-V:
- Added Sv57x4 support for G-stage page table
- Added range based local HFENCE functions
- Added remote HFENCE functions based on VCPU requests
- Added ISA extension registers in ONE_REG interface
- Updated KVM RISC-V maintainers entry to cover selftests support
ARM:
- Add support for the ARMv8.6 WFxT extension
- Guard pages for the EL2 stacks
- Trap and emulate AArch32 ID registers to hide unsupported features
- Ability to select and save/restore the set of hypercalls exposed to
the guest
- Support for PSCI-initiated suspend in collaboration with userspace
- GICv3 register-based LPI invalidation support
- Move host PMU event merging into the vcpu data structure
- GICv3 ITS save/restore fixes
- The usual set of small-scale cleanups and fixes
x86:
- New ioctls to get/set TSC frequency for a whole VM
- Allow userspace to opt out of hypercall patching
- Only do MSR filtering for MSRs accessed by rdmsr/wrmsr
AMD SEV improvements:
- Add KVM_EXIT_SHUTDOWN metadata for SEV-ES
- V_TSC_AUX support
Nested virtualization improvements for AMD:
- Support for "nested nested" optimizations (nested vVMLOAD/VMSAVE,
nested vGIF)
- Allow AVIC to co-exist with a nested guest running
- Fixes for LBR virtualizations when a nested guest is running, and
nested LBR virtualization support
- PAUSE filtering for nested hypervisors
Guest support:
- Decoupling of vcpu_is_preempted from PV spinlocks"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (199 commits)
KVM: x86: Fix the intel_pt PMI handling wrongly considered from guest
KVM: selftests: x86: Sync the new name of the test case to .gitignore
Documentation: kvm: reorder ARM-specific section about KVM_SYSTEM_EVENT_SUSPEND
x86, kvm: use correct GFP flags for preemption disabled
KVM: LAPIC: Drop pending LAPIC timer injection when canceling the timer
x86/kvm: Alloc dummy async #PF token outside of raw spinlock
KVM: x86: avoid calling x86 emulator without a decoded instruction
KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak
x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)
s390/uv_uapi: depend on CONFIG_S390
KVM: selftests: x86: Fix test failure on arch lbr capable platforms
KVM: LAPIC: Trace LAPIC timer expiration on every vmentry
KVM: s390: selftest: Test suppression indication on key prot exception
KVM: s390: Don't indicate suppression on dirtying, failing memop
selftests: drivers/s390x: Add uvdevice tests
drivers/s390/char: Add Ultravisor io device
MAINTAINERS: Update KVM RISC-V entry to cover selftests support
RISC-V: KVM: Introduce ISA extension register
RISC-V: KVM: Cleanup stale TLB entries when host CPU changes
RISC-V: KVM: Add remote HFENCE functions based on VCPU requests
...
Linus Torvalds [Thu, 26 May 2022 19:32:41 +0000 (12:32 -0700)]
Merge tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Almost all of MM here. A few things are still getting finished off,
reviewed, etc.
- Yang Shi has improved the behaviour of khugepaged collapsing of
readonly file-backed transparent hugepages.
- Johannes Weiner has arranged for zswap memory use to be tracked and
managed on a per-cgroup basis.
- Munchun Song adds a /proc knob ("hugetlb_optimize_vmemmap") for
runtime enablement of the recent huge page vmemmap optimization
feature.
- Baolin Wang contributes a series to fix some issues around hugetlb
pagetable invalidation.
- Zhenwei Pi has fixed some interactions between hwpoisoned pages and
virtualization.
- Tong Tiangen has enabled the use of the presently x86-only
page_table_check debugging feature on arm64 and riscv.
- David Vernet has done some fixup work on the memcg selftests.
- Peter Xu has taught userfaultfd to handle write protection faults
against shmem- and hugetlbfs-backed files.
- More DAMON development from SeongJae Park - adding online tuning of
the feature and support for monitoring of fixed virtual address
ranges. Also easier discovery of which monitoring operations are
available.
- Nadav Amit has done some optimization of TLB flushing during
mprotect().
- Neil Brown continues to labor away at improving our swap-over-NFS
support.
- David Hildenbrand has some fixes to anon page COWing versus
get_user_pages().
- Peng Liu fixed some errors in the core hugetlb code.
- Joao Martins has reduced the amount of memory consumed by
device-dax's compound devmaps.
- Some cleanups of the arch-specific pagemap code from Anshuman
Khandual.
- Muchun Song has found and fixed some errors in the TLB flushing of
transparent hugepages.
- Roman Gushchin has done more work on the memcg selftests.
... and, of course, many smaller fixes and cleanups. Notably, the
customary million cleanup serieses from Miaohe Lin"
* tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (381 commits)
mm: kfence: use PAGE_ALIGNED helper
selftests: vm: add the "settings" file with timeout variable
selftests: vm: add "test_hmm.sh" to TEST_FILES
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
selftests: vm: add migration to the .gitignore
selftests/vm/pkeys: fix typo in comment
ksm: fix typo in comment
selftests: vm: add process_mrelease tests
Revert "mm/vmscan: never demote for memcg reclaim"
mm/kfence: print disabling or re-enabling message
include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace"
include/trace/events/mmflags.h: cleanup for "tracing: incorrect gfp_t conversion"
mm: fix a potential infinite loop in start_isolate_page_range()
MAINTAINERS: add Muchun as co-maintainer for HugeTLB
zram: fix Kconfig dependency warning
mm/shmem: fix shmem folio swapoff hang
cgroup: fix an error handling path in alloc_pagecache_max_30M()
mm: damon: use HPAGE_PMD_SIZE
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
nodemask.h: fix compilation error with GCC12
...
Linus Torvalds [Thu, 26 May 2022 19:09:50 +0000 (12:09 -0700)]
Merge tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add HOSTPKG_CONFIG env variable to allow users to override pkg-config
- Support W=e as a shorthand for KCFLAGS=-Werror
- Fix CONFIG_IKHEADERS build to support toybox cpio
- Add scripts/dummy-tools/pahole to ease distro packagers' life
- Suppress false-positive warnings from checksyscalls.sh for W=2 build
- Factor out the common code of arch/*/boot/install.sh into
scripts/install.sh
- Support 'kernel-install' tool in scripts/prune-kernel
- Refactor module-versioning to link the symbol versions at the final
link of vmlinux and modules
- Remove CONFIG_MODULE_REL_CRCS because module-versioning now works in
an arch-agnostic way
- Refactor modpost, Makefiles
* tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (56 commits)
genksyms: adjust the output format to modpost
kbuild: stop merging *.symversions
kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS
modpost: extract symbol versions from *.cmd files
modpost: add sym_find_with_module() helper
modpost: change the license of EXPORT_SYMBOL to bool type
modpost: remove left-over cross_compile declaration
kbuild: record symbol versions in *.cmd files
kbuild: generate a list of objects in vmlinux
modpost: move *.mod.c generation to write_mod_c_files()
modpost: merge add_{intree_flag,retpoline,staging_flag} to add_header
scripts/prune-kernel: Use kernel-install if available
kbuild: factor out the common installation code into scripts/install.sh
modpost: split new_symbol() to symbol allocation and hash table addition
modpost: make sym_add_exported() always allocate a new symbol
modpost: make multiple export error
modpost: dump Module.symvers in the same order of modules.order
modpost: traverse the namespace_list in order
modpost: use doubly linked list for dump_lists
modpost: traverse unresolved symbols in order
...
Linus Torvalds [Thu, 26 May 2022 17:50:30 +0000 (10:50 -0700)]
Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The asm-generic tree contains three separate changes for linux-5.19:
- The h8300 architecture is retired after it has been effectively
unmaintained for a number of years. This is the last architecture
we supported that has no MMU implementation, but there are still a
few architectures (arm, m68k, riscv, sh and xtensa) that support
CPUs with and without an MMU.
- A series to add a generic ticket spinlock that can be shared by
most architectures with a working cmpxchg or ll/sc type atomic,
including the conversion of riscv, csky and openrisc. This series
is also a prerequisite for the loongarch64 architecture port that
will come as a separate pull request.
- A cleanup of some exported uapi header files to ensure they can be
included from user space without relying on other kernel headers"
* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
h8300: remove stale bindings and symlink
sparc: add asm/stat.h to UAPI compile-test coverage
powerpc: add asm/stat.h to UAPI compile-test coverage
mips: add asm/stat.h to UAPI compile-test coverage
riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
agpgart.h: do not include <stdlib.h> from exported header
csky: Move to generic ticket-spinlock
RISC-V: Move to queued RW locks
RISC-V: Move to generic spinlocks
openrisc: Move to ticket-spinlock
asm-generic: qrwlock: Document the spinlock fairness requirements
asm-generic: qspinlock: Indicate the use of mixed-size atomics
asm-generic: ticket-lock: New generic ticket-based spinlock
remove the h8300 architecture
Linus Torvalds [Thu, 26 May 2022 17:43:09 +0000 (10:43 -0700)]
Merge tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
"This series has been 12 years in the making, it mostly finishes the
work that was started with the founding of Linaro to clean up platform
support in the kernel.
The largest change here is a cleanup of the omap1 platform, which is
the final ARM machine type to get converted to the common-clk
subsystem. All the omap1 specific drivers are now made independent of
the mach/*.h headers to allow the platform to be part of a generic
ARMv4/v5 multiplatform kernel.
The last bit that enables this support is still missing here while we
wait for some last dependencies to make it into the mainline kernel
through other subsystems.
The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
at the point of allowing multiplatform kernels, this work gets
completed here along with a few additional cleanup. At the same time,
the s3c24xx and s3c64xx are now deprecated and expected to get removed
in the future.
The PXA and OMAP1 bits are in a separate branch because of
dependencies. Once both branches are merged, only the three Intel
StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
need separate kernels, and there are no plans to include these"
* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
ARM: ixp4xx: Consolidate Kconfig fixing issue
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: config: Refresh IXP4xx config after multiplatform
ARM: omap1: add back omap_set_dma_priority() stub
ARM: omap: fix missing declaration warnings
ARM: omap: fix address space warnings from sparse
ARM: spear: remove include/mach/ subdirectory
ARM: davinci: remove include/mach/ subdirectory
ARM: omap2: remove include/mach/ subdirectory
integrator: remove empty ap_init_early()
ARM: s3c: fix include path
MAINTAINERS: omap1: Add Janusz as an additional maintainer
ARM: omap1: htc_herald: fix typos in comments
ARM: OMAP1: fix typos in comments
ARM: OMAP1: clock: Remove noop code
ARM: OMAP1: clock: Remove unused code
ARM: OMAP1: clock: Fix UART rate reporting algorithm
ARM: OMAP1: clock: Fix early UART rate issues
ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
ARM: omap1: fix build with no SoC selected
...
Linus Torvalds [Thu, 26 May 2022 17:37:02 +0000 (10:37 -0700)]
Merge tag 'arm-defconfig-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM defconfig updates from Arnd Bergmann:
"Lots of smaller additions to the defconfig files for both 32-bit and
64-bit arm platforms, enabling drivers that are now usable on common
hardware, and a few options to make it possible to boot a file system
image using systemd"
* tag 'arm-defconfig-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (39 commits)
ARM: configs: Enable ASoC AC'97 glue
ARM: configs: Enable audio on BeagleBone Black in multi_v7_defconfig
ARM: configs: at91: Enable AUTOFS_FS required by systemd
ARM: configs: at91: Enable options required for systemd
ARM: configs: at91: sama7: enable CONFIG_RESET_CONTROLLER
ARM: configs: at91: sama7: add MCHP PDMC and DMIC drivers
ARM: configs: at91: sama7: Enable MTD_UBI_BLOCK
ARM: configs: at91: sama7: Enable MTD_UBI_FASTMAP
ARM: configs: at91: sama7: add xisc and csi2dc
ARM: multi_v7_defconfig: add atmel video pipeline modules
ARM: configs: at91: Remove MTD_BLOCK and use MTD_UBI_BLOCK for read only block FS
arm64: defconfig: Enable the WM8524 codec driver
arm64: defconfig: Enable modules for arm displays
arm: nomadik: drop selecting obsolete CLKSRC_NOMADIK_MTU_SCHED_CLOCK
arm64: defconfig: Enable Renesas RZ/V2M SoC
arm64: defconfig: Enable ARCH_R9A07G043
arm64: defconfig: Enable configs for DisplayPort on J721e
arm64: defconfig: Build Tegra ASRC module
ARM: multi_v7_defconfig: enable CONFIG_ARCH_BCMBCA in armv7 defconfig
arm: mediatek: select arch timer for mt7629
...
Linus Torvalds [Thu, 26 May 2022 17:32:47 +0000 (10:32 -0700)]
Merge tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"There are minor updates to SoC specific drivers for chips by Rockchip,
Samsung, NVIDIA, TI, NXP, i.MX, Qualcomm, and Broadcom.
Noteworthy driver changes include:
- Several conversions of DT bindings to yaml format.
- Renesas adds driver support for R-Car V4H, RZ/V2M and RZ/G2UL SoCs.
- Qualcomm adds a bus driver for the SSC (Snapdragon Sensor Core),
and support for more chips in the RPMh power domains and the
soc-id.
- NXP has a new driver for the HDMI blk-ctrl on i.MX8MP.
- Apple M1 gains support for the on-chip NVMe controller, making it
possible to finally use the internal disks. This also includes SoC
drivers for their RTKit IPC and for the SART DMA address filter.
For other subsystems that merge their drivers through the SoC tree, we
have
- Firmware drivers for the ARM firmware stack including TEE, OP-TEE,
SCMI and FF-A get a number of smaller updates and cleanups. OP-TEE
now has a cache for firmware argument structures as an
optimization, and SCMI now supports the 3.1 version of the
specification.
- Reset controller updates to Amlogic, ASpeed, Renesas and ACPI
drivers
- Memory controller updates for Tegra, and a few updates for other
platforms"
* tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (159 commits)
memory: tegra: Add MC error logging on Tegra186 onward
memory: tegra: Add memory controller channels support
memory: tegra: Add APE memory clients for Tegra234
memory: tegra: Add Tegra234 support
nvme-apple: fix sparse endianess warnings
soc/tegra: pmc: Document core domain fields
soc: qcom: pdr: use static for servreg_* variables
soc: imx: fix semicolon.cocci warnings
soc: renesas: R-Car V3U is R-Car Gen4
soc: imx: add i.MX8MP HDMI blk-ctrl
soc: imx: imx8m-blk-ctrl: Add i.MX8MP media blk-ctrl
soc: imx: add i.MX8MP HSIO blk-ctrl
soc: imx: imx8m-blk-ctrl: set power device name
soc: qcom: llcc: Add sc8180x and sc8280xp configurations
dt-bindings: arm: msm: Add sc8180x and sc8280xp LLCC compatibles
soc/tegra: pmc: Select REGMAP
dt-bindings: reset: st,sti-powerdown: Convert to yaml
dt-bindings: reset: st,sti-picophyreset: Convert to yaml
dt-bindings: reset: socfpga: Convert to yaml
dt-bindings: reset: snps,axs10x-reset: Convert to yaml
...
Linus Torvalds [Thu, 26 May 2022 17:28:12 +0000 (10:28 -0700)]
Merge tag 'arm-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM DT updates from Arnd Bergmann:
"There are 40 branches this time, adding a lot of new hardware support,
and cleanups. Krzysztof Kozlowski continues his treewide cleanups.
There are a number of new SoCs, all of them as part of existing
families, and typically added along with a reference board:
- Renesas RZ/G2UL (R9A07G043) is the single-core version of the
RZ/G2L general-purpose MPU.
- Renesas RZ/V2M (R9A09G011) is a smart camera SoC
- Renesas R-Car V4H (R8A779G0) is an automotive chip with Cortex-A76
cores and deep learning accerlation.
- Broadcom BCM47622 is a new broadband SoC based on a quad Cortex-A7
and dual Wifi-6.
- Corstone1000 is a generic platform from Arm that is used for
designing custom SoCs, the support for now is for the Fixed Virtual
Platform emulation for it.
- Mediatek MT8195 (Kompanio 1200) is a high-end consumer chip used in
upcoming Chromebooks.
- NXP i.MXRT1050 is a Cortex-M7 based microcontroller, the first
MMU-less SoC to be added in a while
New machines based on already supported SoCs this time are mainly for
32-bit platforms and include:
- Two wireless routers based on Broadcom bcm4708
- 30 new boards based on NXP i.MX6, i.MX7 and i.MX8 families, mostly
for the industrial embedded market, and on NXP LS1021A based IOT
board.
- Two ethernet switches based on Microchip LAN966
- Eight Qualcomm Snapdragon based machines, including a smartwatch, a
Chromebook board and some phones
- Another phone based on the old ST-Ericsson Ux500 platform
- Seven STM32MP1 based boards
- Four single-board computers based on Rockchip RK3566/RK3568"
Linus Torvalds [Thu, 26 May 2022 17:25:22 +0000 (10:25 -0700)]
Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull 32-bit ARM SoC updates from Arnd Bergmann:
"These updates are for platform specific code in arch/arm/, mostly
fixing minor issues.
The at91 platform gains support for better power management on the
lan966 platform and new firmware on the sama5 platform. The mediatek
soc drivers in turn are enabled for the new mt8195 SoC"
* tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (34 commits)
ARM: at91: debug: add lan966 support
ARM: at91: pm: add support for sama5d2 secure suspend
ARM: at91: add code to handle secure calls
ARM: at91: Kconfig: implement PIT64B selection
ARM: at91: pm: add quirks for pm
ARM: at91: pm: use kernel documentation style
ARM: at91: pm: introduce macros for pm mode replacement
ARM: at91: pm: keep documentation inline with structure members
orion5x: fix typos in comments
ARM: hisi: Add missing of_node_put after of_find_compatible_node
ARM: shmobile: rcar-gen2: Drop comma after OF match table sentinel
ARM: shmobile: Drop commas after dt_compat sentinels
soc: mediatek: mutex: remove mt8195 MOD0 and SOF0 definition
MAINTAINERS: Add Broadcom BCMBCA entry
arm: bcmbca: add arch bcmbca machine entry
MAINTAINERS: Broadcom internal lists aren't maintainers
dt-bindings: pwrap: mediatek: Update pwrap document for mt8195
soc: mediatek: add DDP_DOMPONENT_DITHER0 enum for mt8195 vdosys0
soc: mediatek: add mtk-mutex support for mt8195 vdosys0
soc: mediatek: add mtk-mmsys support for mt8195 vdosys0
...
Uros Bizjak [Wed, 25 May 2022 14:40:12 +0000 (16:40 +0200)]
locking/lockref: Use try_cmpxchg64 in CMPXCHG_LOOP macro
Use try_cmpxchg64 instead of cmpxchg64 in CMPXCHG_LOOP macro.
x86 CMPXCHG instruction returns success in ZF flag, so this
change saves a compare after cmpxchg (and related move instruction
in front of cmpxchg). The main loop of lockref_get improves from:
13: 48 89 ca mov %rcx,%rdx
16: 48 c1 fa 20 sar $0x20,%rdx
1a: 83 c2 01 add $0x1,%edx
1d: 48 89 d6 mov %rdx,%rsi
20: 89 ca mov %ecx,%edx
22: 48 c1 e6 20 shl $0x20,%rsi
26: 48 09 f2 or %rsi,%rdx
29: f0 48 0f b1 55 00 lock cmpxchg %rdx,0x0(%rbp)
2f: 75 02 jne 33 <lockref_get+0x33>
[ Michael Ellerman and Mark Rutland confirm that code generation on
powerpc and arm64 respectively is also ok, even though they do not
have a native arch_try_cmpxchg() implementation, and rely on the
default fallback case - Linus ]
Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman.Long@hp.com Cc: paulmck@linux.vnet.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 26 May 2022 02:34:40 +0000 (19:34 -0700)]
Merge tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Dave Chinner:
"This is a big update with lots of new code. The summary below them
all, so I'll just touch on teh higlights. The two main new features
are Large Extent Counts and Logged Attribute Replay - these are two
new foundational features that we are building more complex future
features on top of.
For upcoming functionality, we need to be able to store hundreds of
millions of xattrs per inode. The Large Extent Count feature removes
the limits that prevent this scale of xattr storage, and while we were
modifying the on disk extent count format we also increased the number
of data extents we support per inode from 2^32 to 2^47.
We also need to be able to modify xattrs as part of larger atomic
transactions rather than as standalone transactions. The Logged
Attribute Replay feature introduces the infrastructure that allows us
to use intents to record the attribute modifications in the journal
before we start them, hence allowing other atomic transactions to log
attribute modification intents and then defer the actual modification
to later. If we then crash, log recovery then guarantees that the
attribute is replayed in the context of the atomic transaction that
logged the intent.
A significant chunk of the commits in this merge are for the base
attribute replay functionality along with fixes, improvements and
cleanups related to this new functioanlity. Allison deserves a big
round of thanks for her ongoing work to get this functionality into
XFS.
There are also many other smaller changes and improvements, so overall
this is one of the bigger XFS merge requests in some time.
I will be following up next week with another smaller pull request -
we already have another round of fixes and improvements to the logged
attribute replay functionality just about ready to go. They'll soak
and test over the next week, and I'll send a pull request for them
near the end of the merge window.
Summary:
- support for printk message indexing.
- large extent counts to provide support for up to 2^47 data extents
and 2^32 attribute extents, allowing us to scale beyond 4 billion
data extents to billions of xattrs per inode.
- conversion of various flags fields to be consistently declared as
unsigned bit fields.
- improvements to realtime extent accounting and converts them to
per-cpu counters to match all the other block and inode accounting.
- reworks core log formatting code to reduce iterations, have a
shorter, cleaner fast path and generally be easier to understand
and maintain.
- improvements to rmap btree searches that reduce overhead by up to
30% resulting in xfs_scrub runtime reductions of 15%.
- improvements to reflink that remove the size limitations in
remapping operations and greatly reduce the size of transaction
reservations.
- reworks the minimum log size calculations to allow us to change
transaction reservations without changing the minimum supported log
size.
- removal of quota warning support as it has never been used on
Linux.
- intent whiteouts to allow us to cancel intents that are completed
entirely in memory rather than having use CPU and disk bandwidth
formatting and writing them into the journal when it is not
necessary. This makes rmap, reflink and extent freeing slightly
more efficient, but provides massive improvements for....
- Logged Attribute Replay feature support. This is a fundamental
change to the way we modify attributes, laying the foundation for
future integration of attribute modifications as part of other
atomic transactional operations the filesystem performs.
- Lots of cleanups and fixes for the logged attribute replay
functionality"
* tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (124 commits)
xfs: can't use kmem_zalloc() for attribute buffers
xfs: detect empty attr leaf blocks in xfs_attr3_leaf_verify
xfs: ATTR_REPLACE algorithm with LARP enabled needs rework
xfs: use XFS_DA_OP flags in deferred attr ops
xfs: remove xfs_attri_remove_iter
xfs: switch attr remove to xfs_attri_set_iter
xfs: introduce attr remove initial states into xfs_attr_set_iter
xfs: xfs_attr_set_iter() does not need to return EAGAIN
xfs: clean up final attr removal in xfs_attr_set_iter
xfs: remote xattr removal in xfs_attr_set_iter() is conditional
xfs: XFS_DAS_LEAF_REPLACE state only needed if !LARP
xfs: split remote attr setting out from replace path
xfs: consolidate leaf/node states in xfs_attr_set_iter
xfs: kill XFS_DAC_LEAF_ADDNAME_INIT
xfs: separate out initial attr_set states
xfs: don't set quota warning values
xfs: remove warning counters from struct xfs_dquot_res
xfs: remove quota warning limit from struct xfs_quota_limits
xfs: rework deferred attribute operation setup
xfs: make xattri_leaf_bp more useful
...
Linus Torvalds [Thu, 26 May 2022 02:29:54 +0000 (19:29 -0700)]
Merge tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"The biggest part of this is support for fsnotify inode marks that
don't pin inodes in memory but rather get evicted together with the
inode (they are useful if userspace needs to exclude receipt of events
from potentially large subtrees using fanotify ignore marks).
There is also a fix for more consistent handling of events sent to
parent and a fix of sparse(1) complaints"
* tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: fix incorrect fmode_t casts
fsnotify: consistent behavior for parent not watching children
fsnotify: introduce mark type iterator
fanotify: enable "evictable" inode marks
fanotify: use fsnotify group lock helpers
fanotify: implement "evictable" inode marks
fanotify: factor out helper fanotify_mark_update_flags()
fanotify: create helper fanotify_mark_user_flags()
fsnotify: allow adding an inode mark without pinning inode
dnotify: use fsnotify group lock helpers
nfsd: use fsnotify group lock helpers
audit: use fsnotify group lock helpers
inotify: use fsnotify group lock helpers
fsnotify: create helpers for group mark_mutex lock
fsnotify: make allow_dups a property of the group
fsnotify: pass flags argument to fsnotify_alloc_group()
fsnotify: fix wrong lockdep annotations
inotify: move control flags from mask to mark flags
inotify: show inotify mask flags in proc fdinfo
Linus Torvalds [Thu, 26 May 2022 02:24:06 +0000 (19:24 -0700)]
Merge tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull writeback and ext2 cleanups from Jan Kara:
"One small ext2 cleanup and one writeback spelling fix"
* tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
writeback: fix typo in comment
fs: ext2: Fix duplicate included linux/dax.h
Linus Torvalds [Thu, 26 May 2022 02:18:36 +0000 (19:18 -0700)]
Merge tag 'dma-mapping-5.19-2022-05-25' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- don't over-decrypt memory (Robin Murphy)
- takes min align mask into account for the swiotlb max mapping size
(Tianyu Lan)
- use GFP_ATOMIC in dma-debug (Mikulas Patocka)
- fix DMA_ATTR_NO_KERNEL_MAPPING on xen/arm (me)
- don't fail on highmem CMA pages in dma_direct_alloc_pages (me)
- cleanup swiotlb initialization and share more code with swiotlb-xen
(me, Stefano Stabellini)
* tag 'dma-mapping-5.19-2022-05-25' of git://git.infradead.org/users/hch/dma-mapping: (23 commits)
dma-direct: don't over-decrypt memory
swiotlb: max mapping size takes min align mask into account
swiotlb: use the right nslabs-derived sizes in swiotlb_init_late
swiotlb: use the right nslabs value in swiotlb_init_remap
swiotlb: don't panic when the swiotlb buffer can't be allocated
dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC
dma-direct: don't fail on highmem CMA pages in dma_direct_alloc_pages
swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on arm
x86: remove cruft from <asm/dma-mapping.h>
swiotlb: remove swiotlb_init_with_tbl and swiotlb_init_late_with_tbl
swiotlb: merge swiotlb-xen initialization into swiotlb
swiotlb: provide swiotlb_init variants that remap the buffer
swiotlb: pass a gfp_mask argument to swiotlb_init_late
swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction
swiotlb: make the swiotlb_init interface more useful
x86: centralize setting SWIOTLB_FORCE when guest memory encryption is enabled
x86: remove the IOMMU table infrastructure
MIPS/octeon: use swiotlb_init instead of open coding it
arm/xen: don't check for xen_initial_domain() in xen_create_contiguous_region
swiotlb: rename swiotlb_late_init_with_default_size
...
Linus Torvalds [Thu, 26 May 2022 02:09:48 +0000 (19:09 -0700)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of a small set of driver updates (lpfc, ufs, mpt3sas
mpi3mr, iscsi target). Apart from that this is mostly small fixes with
very few core changes (the biggest one being VPD caching)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (177 commits)
scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
scsi: elx: efct: Remove NULL check after calling container_of()
scsi: dpt_i2o: Drop redundant spinlock initialization
scsi: qedf: Remove redundant variable op
scsi: hisi_sas: Fix memory ordering in hisi_sas_task_deliver()
scsi: fnic: Replace DMA mask of 64 bits with 47 bits
scsi: mpi3mr: Add target device related sysfs attributes
scsi: mpi3mr: Add shost related sysfs attributes
scsi: elx: efct: Remove redundant memset() statement
scsi: megaraid_sas: Remove redundant memset() statement
scsi: mpi3mr: Return error if dma_alloc_coherent() fails
scsi: hisi_sas: Fix rescan after deleting a disk
scsi: hisi_sas: Use sas_ata_wait_after_reset() in IT nexus reset
scsi: libsas: Refactor sas_ata_hard_reset()
scsi: mpt3sas: Update driver version to 42.100.00.00
scsi: mpt3sas: Fix junk chars displayed while printing ChipName
scsi: ipr: Use kobj_to_dev()
scsi: mpi3mr: Fix a NULL vs IS_ERR() bug in mpi3mr_bsg_init()
scsi: bnx2fc: Avoid using get_cpu() in bnx2fc_cmd_alloc()
scsi: libfc: Remove get_cpu() semantics in fc_exch_em_alloc()
...
Linus Torvalds [Wed, 25 May 2022 23:55:16 +0000 (16:55 -0700)]
Merge tag 'sound-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Not much dramatic changes at this time, but we've received quite a lot
of changes for ASoC, while there are still a few fixes and quirks for
usual HD- and USB-auido. Here are some highlights.
ASoC:
- Overhaul of endianness specification for data formats, avoiding
needless restrictions due to CODECs
- Initial stages of Intel AVS driver merge
- Introduction of v4 IPC mechanism for SOF
- TDM mode support for AK4613
- Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim
MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces,
nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
Others:
- A few regression fixes after the USB-audio endpoint management
refactoring
- More enhancements for Cirrus HD-audio codec support (still ongoing)
- Addition of generic serial MIDI driver"
* tag 'sound-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (504 commits)
ALSA: hda/realtek - Add new type for ALC245
ALSA: usb-audio: Configure sync endpoints before data
ALSA: ctxfi: fix typo in comment
ALSA: cs5535audio: fix typo in comment
ALSA: ctxfi: Add SB046x PCI ID
ALSA: usb-audio: Add missing ep_idx in fixed EP quirks
ALSA: usb-audio: Workaround for clock setup on TEAC devices
ALSA: lola: Bounds check loop iterator against streams array size
ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv()
ASoC: rt1308-sdw: add the default value of register 0xc320
ASoC: rt9120: Use pm_runtime and regcache to optimize 'pwdnn' logic
ASoC: rt9120: Fix 3byte read, valule offset typo
ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver.
ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver
ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition()
ASoC: codecs: lpass: Fix passing zero to 'PTR_ERR'
ASoC: SOF: sof-client-ipc-flood-test: use pm_runtime_resume_and_get()
ASoC: SOF: mediatek: remove duplicate include in mt8195.c
ASoC: SOF: mediatek: Add mt8195 debug dump
ASoC: SOF: mediatek: Add mediatek common debug dump
...
Linus Torvalds [Wed, 25 May 2022 23:18:27 +0000 (16:18 -0700)]
Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Intel have enabled DG2 on certain SKUs for laptops, AMD has started
some new GPU support, msm has user allocated VA controls
i915:
- DG2 laptop PCI-IDs ("motherboard down")
- Initial RPL-P PCI IDs
- compute engine ABI
- DG2 Tile4 support
- DG2 CCS clear color compression support
- DG2 render/media compression formats support
- ATS-M platform info
- RPL-S PCI IDs added
- Bump ADL-P DMC version to v2.16
- Support static DRRS
- Support multiple eDP/LVDS native mode refresh rates
- DP HDR support for HSW+
- Lots of display refactoring + fixes
- GuC hwconfig support and query
- sysfs support for multi-tile
- fdinfo per-client gpu utilisation
- add geometry subslices query
- fix prime mmap with LMEM
- fix vm open count and remove vma refcounts
- contiguous allocation fixes
- steered register write support
- small PCI BAR enablement
- GuC error capture support
- sunset igpu legacy mmap support for newer devices
- GuC version 70.1.1 support
amdgpu:
- Initial SoC21 support
- SMU 13.x enablement
- SMU 13.0.4 support
- ttm_eu cleanups
- USB-C, GPUVM updates
- TMZ fixes for RV
- RAS support for VCN
- PM sysfs code cleanup
- DC FP rework
- extend CG/PG flags to 64-bit
- SI dpm lockdep fix
- runtime PM fixes
amdkfd:
- RAS/SVM fixes
- TLB flush fixes
- CRIU GWS support
- ignore bogus MEC signals more efficiently
msm:
- Fourcc modifier for tiled but not compressed layouts
- Support for userspace allocated IOVA (GPU virtual address)
- DPU: DSC (Display Stream Compression) support
- DP: eDP support
- DP: conversion to use drm_bridge and drm_bridge_connector
- Merge DPU1 and MDP5 MDSS driver
- DPU: writeback support
nouveau:
- make some structures static
- make some variables static
- switch to drm_gem_plane_helper_prepare_fb
radeon:
- misc fixes/cleanups
mxsfb:
- rework crtc mode setting
- LCDIF CRC support
vc4:
- add a CL submission tracepoint
- HDMI YUV support
- HDMI/clock improvements
- drop is_hdmi caching
virtio:
- remove restriction of non-zero blob types
vmwgfx:
- support for cursormob and cursorbypass 4
- fence improvements
tidss:
- reset DISPC on startup
solomon:
- SPI support
- DT improvements
sun4i:
- allwinner D1 support
- drop is_hdmi caching
imx:
- use swap() instead of open-coding
- use devm_platform_ioremap_resource
- remove redunant initializations
ast:
- Displayport support
rockchip:
- Refactor IOMMU initialisation
- make some structures static
- replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi
- support swapped YUV formats,
- clock improvements
- rk3568 support
- VOP2 support
mediatek:
- MT8186 support
tegra:
- debugabillity improvements"
* tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits)
drm/i915/dsi: fix VBT send packet port selection for ICL+
drm/i915/uc: Fix undefined behavior due to shift overflowing the constant
drm/i915/reg: fix undefined behavior due to shift overflowing the constant
drm/i915/gt: Fix use of static in macro mismatch
drm/i915/audio: fix audio code enable/disable pipe logging
drm/i915: Fix CFI violation with show_dynamic_id()
drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c
drm/i915/gt: Fix build error without CONFIG_PM
drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations
drm/msm: don't free the IRQ if it was not requested
drm/msm/dpu: limit writeback modes according to max_linewidth
drm/amd: Don't reset dGPUs if the system is going to s2idle
drm/amdgpu: Unmap legacy queue when MES is enabled
drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
drm/msm: Fix fb plane offset calculation
drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
drm/msm/dsi: don't powerup at modeset time for parade-ps8640
drm/rockchip: Change register space names in vop2
dt-bindings: display: rockchip: make reg-names mandatory for VOP2
...
Linus Torvalds [Wed, 25 May 2022 21:46:09 +0000 (14:46 -0700)]
Merge tag 'perf-tools-for-v5.19-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tool updates from Arnaldo Carvalho de Melo:
"Intel PT:
- Allow hardware tracing on KVM test programs. In this case, the VM
is not running an OS, but only the functions loaded into it by the
hypervisor test program, and conveniently, loaded at the same
virtual addresses.
- Improve documentation:
- Add link to perf wiki's page
Linus Torvalds [Wed, 25 May 2022 21:37:00 +0000 (14:37 -0700)]
Merge tag 'checkpatch-new-alloc-check-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull checkpatch update from Gustavo Silva:
"kvmalloc() and kvzalloc() functions have now 2-factor multiplication
argument forms kvmalloc_array() and kvcalloc().
Add alloc-with-multiplies checks for these new functions"
* tag 'checkpatch-new-alloc-check-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
checkpatch: add new alloc functions to alloc with multiplies check
Linus Torvalds [Wed, 25 May 2022 20:56:57 +0000 (13:56 -0700)]
Merge tag 'size_t-saturating-helpers-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull misc hardening updates from Gustavo Silva:
"Replace a few open-coded instances with size_t saturating arithmetic
helpers"
* tag 'size_t-saturating-helpers-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
virt: acrn: Prefer array_size and struct_size over open coded arithmetic
afs: Prefer struct_size over open coded arithmetic
Linus Torvalds [Wed, 25 May 2022 20:52:24 +0000 (13:52 -0700)]
Merge tag 'Wstringop-overflow-fixes-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull Wstringop-overflow fixes from Gustavo Silva:
"Fix some -Wstringop-overflow warnings when building with GCC-11. All
the patches have been in linux-next during the last development cycle.
This is part of the ongoing efforts to globally enable
-Wstringop-overflow"
* tag 'Wstringop-overflow-fixes-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency()
drm/amd/display: Fix Wstringop-overflow warnings in dc_link_dp.c
scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
Linus Torvalds [Wed, 25 May 2022 19:22:58 +0000 (12:22 -0700)]
Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core
----
- Support TCPv6 segmentation offload with super-segments larger than
64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).
- Generalize skb freeing deferral to per-cpu lists, instead of
per-socket lists.
- Add a netdev statistic for packets dropped due to L2 address
mismatch (rx_otherhost_dropped).
- Continue work annotating skb drop reasons.
- Accept alternative netdev names (ALT_IFNAME) in more netlink
requests.
- Add VLAN support for AF_PACKET SOCK_RAW GSO.
- Allow receiving skb mark from the socket as a cmsg.
- Enable memcg accounting for veth queues, sysctl tables and IPv6.
BPF
---
- Add libbpf support for User Statically-Defined Tracing (USDTs).
- Speed up symbol resolution for kprobes multi-link attachments.
- Support storing typed pointers to referenced and unreferenced
objects in BPF maps.
- Add support for BPF link iterator.
- Introduce access to remote CPU map elements in BPF per-cpu map.
- Allow middle-of-the-road settings for the
kernel.unprivileged_bpf_disabled sysctl.
- Implement basic types of dynamic pointers e.g. to allow for
dynamically sized ringbuf reservations without extra memory copies.
Protocols
---------
- Retire port only listening_hash table, add a second bind table
hashed by port and address. Avoid linear list walk when binding to
very popular ports (e.g. 443).
- Add bridge FDB bulk flush filtering support allowing user space to
remove all FDB entries matching a condition.
- Introduce accept_unsolicited_na sysctl for IPv6 to implement
router-side changes for RFC9131.
- Support for MPTCP path manager in user space.
- Add MPTCP support for fallback to regular TCP for connections that
have never connected additional subflows or transmitted
out-of-sequence data (partial support for RFC8684 fallback).
- Avoid races in MPTCP-level window tracking, stabilize and improve
throughput.
- Support lockless operation of GRE tunnels with seq numbers enabled.
- WiFi support for host based BSS color collision detection.
- Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.
- Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).
- Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).
- Allow matching on the number of VLAN tags via tc-flower.
- Add tracepoint for tcp_set_ca_state().
Driver API
----------
- Improve error reporting from classifier and action offload.
- Add support for listing line cards in switches (devlink).
- Add helpers for reporting page pool statistics with ethtool -S.
- Add support for reading clock cycles when using PTP virtual clocks,
instead of having the driver convert to time before reporting. This
makes it possible to report time from different vclocks.
- Support configuring low-latency Tx descriptor push via ethtool.
- Separate Clause 22 and Clause 45 MDIO accesses more explicitly.
New hardware / drivers
----------------------
- Ethernet:
- Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
- Sunplus SP7021 SoC (sp7021_emac)
- Add support for Renesas RZ/V2M (in ravb)
- Add support for MediaTek mt7986 switches (in mtk_eth_soc)
- Ethernet PHYs:
- ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
- TI DP83TD510 PHY
- Microchip LAN8742/LAN88xx PHYs
- WiFi:
- Driver for pureLiFi X, XL, XC devices (plfxlc)
- Driver for Silicon Labs devices (wfx)
- Support for WCN6750 (in ath11k)
- Support Realtek 8852ce devices (in rtw89)
- CAN:
- ctucanfd: add support for CTU CAN FD open-source IP core from
Czech Technical University in Prague
Drivers
-------
- Delete a number of old drivers still using virt_to_bus().
- Ethernet NICs:
- intel: support TSO on tunnels MPLS
- broadcom: support multi-buffer XDP
- nfp: support VF rate limiting
- sfc: use hardware tx timestamps for more than PTP
- mlx5: multi-port eswitch support
- hyper-v: add support for XDP_REDIRECT
- atlantic: XDP support (including multi-buffer)
- macb: improve real-time perf by deferring Tx processing to NAPI
- High-speed Ethernet switches:
- mlxsw: implement basic line card information querying
- prestera: add support for traffic policing on ingress and egress
- Embedded Ethernet switches:
- lan966x: add support for packet DMA (FDMA)
- lan966x: add support for PTP programmable pins
- ti: cpsw_new: enable bc/mc storm prevention
- Qualcomm 802.11ax WiFi (ath11k):
- Wake-on-WLAN support for QCA6390 and WCN6855
- device recovery (firmware restart) support
- support setting Specific Absorption Rate (SAR) for WCN6855
- read country code from SMBIOS for WCN6855/QCA6390
- enable keep-alive during WoWLAN suspend
- implement remain-on-channel support
- MediaTek WiFi (mt76):
- support Wireless Ethernet Dispatch offloading packet movement
between the Ethernet switch and WiFi interfaces
- non-standard VHT MCS10-11 support
- mt7921 AP mode support
- mt7921 IPv6 NS offload support
- Ethernet PHYs:
- micrel: ksz9031/ksz9131: cabletest support
- lan87xx: SQI support for T1 PHYs
- lan937x: add interrupt support for link detection"
* tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits)
ptp: ocp: Add firmware header checks
ptp: ocp: fix PPS source selector debugfs reporting
ptp: ocp: add .init function for sma_op vector
ptp: ocp: vectorize the sma accessor functions
ptp: ocp: constify selectors
ptp: ocp: parameterize input/output sma selectors
ptp: ocp: revise firmware display
ptp: ocp: add Celestica timecard PCI ids
ptp: ocp: Remove #ifdefs around PCI IDs
ptp: ocp: 32-bit fixups for pci start address
Revert "net/smc: fix listen processing for SMC-Rv2"
ath6kl: Use cc-disable-warning to disable -Wdangling-pointer
selftests/bpf: Dynptr tests
bpf: Add dynptr data slices
bpf: Add bpf_dynptr_read and bpf_dynptr_write
bpf: Dynptr support for ring buffers
bpf: Add bpf_dynptr_from_mem for local dynptrs
bpf: Add verifier support for dynptrs
bpf: Suppress 'passing zero to PTR_ERR' warning
bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack
...
Linus Torvalds [Wed, 25 May 2022 18:47:25 +0000 (11:47 -0700)]
Merge branch 'for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"Nothing too interesting. This adds cpu controller selftests and there
are a couple code cleanup patches"
* 'for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: remove the superfluous judgment
cgroup: Make cgroup_debug static
kseltest/cgroup: Make test_stress.sh work if run interactively
kselftest/cgroup: fix test_stress.sh to use OUTPUT dir
cgroup: Add config file to cgroup selftest suite
cgroup: Add test_cpucg_max_nested() testcase
cgroup: Add test_cpucg_max() testcase
cgroup: Add test_cpucg_nested_weight_underprovisioned() testcase
cgroup: Adding test_cpucg_nested_weight_overprovisioned() testcase
cgroup: Add test_cpucg_weight_underprovisioned() testcase
cgroup: Add test_cpucg_weight_overprovisioned() testcase
cgroup: Add test_cpucg_stats() testcase to cgroup cpu selftests
cgroup: Add new test_cpu.c test suite in cgroup selftests
Linus Torvalds [Wed, 25 May 2022 18:32:53 +0000 (11:32 -0700)]
Merge tag 'linux-kselftest-kunit-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several fixes, cleanups, and enhancements to tests and framework:
- introduce _NULL and _NOT_NULL macros to pointer error checks
- rework kunit_resource allocation policy to fix memory leaks when
caller doesn't specify free() function to be used when allocating
memory using kunit_add_resource() and kunit_alloc_resource() funcs.
- add ability to specify suite-level init and exit functions"
* tag 'linux-kselftest-kunit-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (41 commits)
kunit: tool: Use qemu-system-i386 for i386 runs
kunit: fix executor OOM error handling logic on non-UML
kunit: tool: update riscv QEMU config with new serial dependency
kcsan: test: use new suite_{init,exit} support
kunit: tool: Add list of all valid test configs on UML
kunit: take `kunit_assert` as `const`
kunit: tool: misc cleanups
kunit: tool: minor cosmetic cleanups in kunit_parser.py
kunit: tool: make parser stop overwriting status of suites w/ no_tests
kunit: tool: remove dead parse_crash_in_log() logic
kunit: tool: print clearer error message when there's no TAP output
kunit: tool: stop using a shell to run kernel under QEMU
kunit: tool: update test counts summary line format
kunit: bail out of test filtering logic quicker if OOM
lib/Kconfig.debug: change KUnit tests to default to KUNIT_ALL_TESTS
kunit: Rework kunit_resource allocation policy
kunit: fix debugfs code to use enum kunit_status, not bool
kfence: test: use new suite_{init/exit} support, add .kunitconfig
kunit: add ability to specify suite-level init and exit functions
kunit: rename print_subtest_{start,end} for clarity (s/subtest/suite)
...
Linus Torvalds [Wed, 25 May 2022 18:30:21 +0000 (11:30 -0700)]
Merge tag 'linux-kselftest-next-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"Several fixes, cleanups, and enhancements to tests:
- add mips support for kprobe args string and syntax tests
- updates to resctrl test to use kselftest framework
- fixes, cleanups, and enhancements to tests"
* tag 'linux-kselftest-next-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftests/ir : Improve readability of modprobe error message
selftests/resctrl: Fix null pointer dereference on open failed
selftests/resctrl: Add missing SPDX license to Makefile
selftests/resctrl: Update README about using kselftest framework to build/run resctrl_tests
selftests/resctrl: Make resctrl_tests run using kselftest framework
selftests/resctrl: Fix resctrl_tests' return code to work with selftest framework
selftests/resctrl: Change the default limited time to 120 seconds
selftests/resctrl: Kill child process before parent process terminates if SIGTERM is received
selftests/resctrl: Print a message if the result of MBM&CMT tests is failed on Intel CPU
selftests/resctrl: Extend CPU vendor detection
selftests/x86/corrupt_xstate_header: Use provided __cpuid_count() macro
selftests/x86/amx: Use provided __cpuid_count() macro
selftests/vm/pkeys: Use provided __cpuid_count() macro
selftests: Provide local define of __cpuid_count()
selftests/damon: add damon to selftests root Makefile
selftests/binderfs: Improve message to provide more info
selftests: mqueue: drop duplicate min definition
selftests/ftrace: add mips support for kprobe args syntax tests
selftests/ftrace: add mips support for kprobe args string tests
Linus Torvalds [Wed, 25 May 2022 18:17:41 +0000 (11:17 -0700)]
Merge tag 'docs-5.19' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It was a moderately busy cycle for documentation; highlights include:
- After a long period of inactivity, the Japanese translations are
seeing some much-needed maintenance and updating.
- Reworked IOMMU documentation
- Some new documentation for static-analysis tools
- A new overall structure for the memory-management documentation.
This is an LSFMM outcome that, it is hoped, will help encourage
developers to fill in the many gaps. Optimism is eternal...but
hopefully it will work.
- More Chinese translations.
Plus the usual typo fixes, updates, etc"
* tag 'docs-5.19' of git://git.lwn.net/linux: (70 commits)
docs: pdfdocs: Add space for chapter counts >= 100 in TOC
docs/zh_CN: Add dev-tools/gdb-kernel-debugging.rst Chinese translation
input: Docs: correct ntrig.rst typo
input: Docs: correct atarikbd.rst typos
MAINTAINERS: Become the docs/zh_CN maintainer
docs/zh_CN: fix devicetree usage-model translation
mm,doc: Add new documentation structure
Documentation: drop more IDE boot options and ide-cd.rst
Documentation/process: use scripts/get_maintainer.pl on patches
MAINTAINERS: Add entry for DOCUMENTATION/JAPANESE
docs/trans/ja_JP/howto: Don't mention specific kernel versions
docs/ja_JP/SubmittingPatches: Request summaries for commit references
docs/ja_JP/SubmittingPatches: Add Suggested-by as a standard signature
docs/ja_JP/SubmittingPatches: Randy has moved
docs/ja_JP/SubmittingPatches: Suggest the use of scripts/get_maintainer.pl
docs/ja_JP/SubmittingPatches: Update GregKH links
Documentation/sysctl: document max_rcu_stall_to_panic
Documentation: add missing angle bracket in cgroup-v2 doc
Documentation: dev-tools: use literal block instead of code-block
docs/zh_CN: add vm numa translation
...
Patrick Wang [Sat, 21 May 2022 08:38:24 +0000 (16:38 +0800)]
selftests: vm: add "test_hmm.sh" to TEST_FILES
The "test_hmm.sh" file used by run_vmtests.sh dose not be installed into
INSTALL_PATH. Thus run_vmtests.sh can not call it in INSTALL_PATH:
---------------------------
running ./test_hmm.sh smoke
---------------------------
./run_vmtests.sh: line 74: ./test_hmm.sh: No such file or directory
[FAIL]
-----------------------
Add "test_hmm.sh" to TEST_FILES so that it will be installed.
Patrick Wang [Sat, 21 May 2022 08:38:23 +0000 (16:38 +0800)]
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
Patch series "selftests: vm: a few fixup patches".
This series contains three fixup patches for vm selftests. They are
independent. Please see the patches.
This patch (of 3):
Currently, ksm_tests operates "merge_across_nodes" with NUMA either
enabled or disabled. In a system with NUMA disabled, these operations
will fail and output a misleading report given "merge_across_nodes" does
not exist in sysfs:
----------------------------
running ./ksm_tests -M -p 10
----------------------------
f /sys/kernel/mm/ksm/merge_across_nodes
fopen: No such file or directory
Cannot save default tunables
[FAIL]
----------------------
So check numa_available() before those operations to skip them if NUMA is
disabled.
Introduce process_mrelease syscall sanity tests which include tests
which expect to fail:
- process_mrelease with invalid pidfd and flags inputs
- process_mrelease on a live process with no pending signals
and valid process_mrelease usage which is expected to succeed. Because
process_mrelease has to be used against a process with a pending SIGKILL,
it's possible that the process exits before process_mrelease gets called.
In such cases we retry the test with a victim that allocates twice more
memory up to 1GB. This would require the victim process to spend more
time during exit and process_mrelease has a better chance of catching the
process before it exits and succeeding.
On success the test reports the amount of memory the child had to allocate
for reaping to succeed. Sample output:
$ mrelease_test
Success reaping a child with 1MB of memory allocations
On failure the test reports the failure. Sample outputs:
$ mrelease_test
All process_mrelease attempts failed!
Its premise was that cgroup reclaim cares about freeing memory inside the
cgroup, and demotion just moves them around within the cgroup limit.
Hence, pages from toptier nodes should be reclaimed directly.
However, with NUMA balancing now doing tier promotions, demotion is part
of the page aging process. Global reclaim demotes the coldest toptier
pages to secondary memory, where their life continues and from which they
have a chance to get promoted back. Essentially, tiered memory systems
have an LRU order that spans multiple nodes.
When cgroup reclaims pages coming off the toptier directly, there can be
colder pages on lower tier nodes that were demoted by global reclaim.
This is an aging inversion, not unlike if cgroups were to reclaim directly
from the active lists while there are inactive pages.
Proactive reclaim is another factor. The goal of that it is to offload
colder pages from expensive RAM to cheaper storage. When lower tier
memory is available as an intermediate layer, we want offloading to take
advantage of it instead of bypassing to storage.
Revert the patch so that cgroups respect the LRU order spanning the memory
hierarchy.
Of note is a specific undercommit scenario, where all cgroup limits in the
system add up to <= available toptier memory. In that case, shuffling
pages out to lower tiers first to reclaim them from there is inefficient.
This is something could be optimized/short-circuited later on (although
care must be taken not to accidentally recreate the aging inversion).
Let's ensure correctness first.
Link: https://lkml.kernel.org/r/20220518190911.82400-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Yang Shi <shy828301@gmail.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Reviewed-by: "Huang, Ying" <ying.huang@intel.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Shakeel Butt <shakeelb@google.com> Acked-by: Tim Chen <tim.c.chen@linux.intel.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jackie Liu [Wed, 18 May 2022 07:31:05 +0000 (15:31 +0800)]
mm/kfence: print disabling or re-enabling message
By printing information, we can friendly prompt the status change
information of kfence by dmesg and record by syslog.
Also, set kfence_enabled to false only when needed.
Link: https://lkml.kernel.org/r/20220518073105.3160335-1-liu.yun@linux.dev Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Co-developed-by: Marco Elver <elver@google.com> Signed-off-by: Marco Elver <elver@google.com> Reviewed-by: Marco Elver <elver@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Zi Yan [Tue, 24 May 2022 19:47:56 +0000 (15:47 -0400)]
mm: fix a potential infinite loop in start_isolate_page_range()
In isolate_single_pageblock() called by start_isolate_page_range(), there
are some pageblock isolation issues causing a potential infinite loop when
isolating a page range. This is reported by Qian Cai.
1. the pageblock was isolated by just changing pageblock migratetype
without checking unmovable pages. Calling set_migratetype_isolate() to
isolate pageblock properly.
2. an off-by-one error caused migrating pages unnecessarily, since the page
is not crossing pageblock boundary.
3. migrating a compound page across pageblock boundary then splitting the
free page later has a small race window that the free page might be
allocated again, so that the code will try again, causing an potential
infinite loop. Temporarily set the to-be-migrated page's pageblock to
MIGRATE_ISOLATE to prevent that and bail out early if no free page is
found after page migration.
An additional fix to split_free_page() aims to avoid crashing in
__free_one_page(). When the free page is split at the specified
split_pfn_offset, free_page_order should check both the first bit of
free_page_pfn and the last bit of split_pfn_offset and use the smaller
one. For example, if free_page_pfn=0x10000, split_pfn_offset=0xc000,
free_page_order should first be 0x8000 then 0x4000, instead of 0x4000 then
0x8000, which the original algorithm did.
[akpm@linux-foundation.org: suppress min() warning] Link: https://lkml.kernel.org/r/20220524194756.1698351-1-zi.yan@sent.com Fixes: fb8ff9519e2ecd ("mm: make alloc_contig_range work at pageblock granularity") Signed-off-by: Zi Yan <ziy@nvidia.com> Reported-by: Qian Cai <quic_qiancai@quicinc.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: David Hildenbrand <david@redhat.com> Cc: Eric Ren <renzhengeek@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Muchun Song [Sat, 21 May 2022 07:41:03 +0000 (15:41 +0800)]
MAINTAINERS: add Muchun as co-maintainer for HugeTLB
I have been focusing on mm for the past two years. e.g. developing,
fixing bugs, reviewing related to HugeTLB system. I would like to help
Mike and other people working on HugeTLB by reviewing their work.
When I first introduced the vmemmmap reduction, I forgot to update
MAINTAINERS file. Let's update it as well. And rename "HUGETLB
FILESYSTEM" to "HUGETLB SUBSYSTEM" since some files are not only related
to filesystem but also memory management (the name of FILESYSTEM cannot
cover this area).
Linus Torvalds [Wed, 25 May 2022 17:32:08 +0000 (10:32 -0700)]
Merge tag 'printk-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Offload writing printk() messages on consoles to per-console
kthreads.
It prevents soft-lockups when an extensive amount of messages is
printed. It was observed, for example, during boot of large systems
with a lot of peripherals like disks or network interfaces.
It prevents live-lockups that were observed, for example, when
messages about allocation failures were reported and a CPU handled
consoles instead of reclaiming the memory. It was hard to solve even
with rate limiting because it would need to take into account the
amount of messages and the speed of all consoles.
It is a must to have for real time. Otherwise, any printk() might
break latency guarantees.
The per-console kthreads allow to handle each console on its own
speed. Slow consoles do not longer slow down faster ones. And
printk() does not longer unpredictably slows down various code paths.
There are situations when the kthreads are either not available or
not reliable, for example, early boot, suspend, or panic. In these
situations, printk() uses the legacy mode and tries to handle
consoles immediately.
- Add documentation for the printk index.
* tag 'printk-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk, tracing: fix console tracepoint
printk: remove @console_locked
printk: extend console_lock for per-console locking
printk: add kthread console printers
printk: add functions to prefer direct printing
printk: add pr_flush()
printk: move buffer definitions into console_emit_next_record() caller
printk: refactor and rework printing logic
printk: add con_printk() macro for console details
printk: call boot_delay_msec() in printk_delay()
printk: get caller_id/timestamp after migration disable
printk: wake waiters for safe and NMI contexts
printk: wake up all waiters
printk: add missing memory barrier to wake_up_klogd()
printk: cpu sync always disable interrupts
printk: rename cpulock functions
printk/index: Printk index feature documentation
MAINTAINERS: Add printk indexing maintainers on mention of printk_index
Linus Torvalds [Wed, 25 May 2022 17:24:04 +0000 (10:24 -0700)]
Merge tag 'slab-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- Conversion of slub_debug stack traces to stackdepot, allowing more
useful debugfs-based inspection for e.g. memory leak debugging.
Allocation and free debugfs info now includes full traces and is
sorted by the unique trace frequency.
The stackdepot conversion was already attempted last year but
reverted by 1b2c85c4df23. The memory overhead (while not actually
enabled on boot) has been meanwhile solved by making the large
stackdepot allocation dynamic. The xfstest issues haven't been
reproduced on current kernel locally nor in -next, so the slab cache
layout changes that originally made that bug manifest were probably
not the root cause.
- Refactoring of dma-kmalloc caches creation.
- Trivial cleanups such as removal of unused parameters, fixes and
clarifications of comments.
- Hyeonggon Yoo joins as a reviewer.
* tag 'slab-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
MAINTAINERS: add myself as reviewer for slab
mm/slub: remove unused kmem_cache_order_objects max
mm: slab: fix comment for __assume_kmalloc_alignment
mm: slab: fix comment for ARCH_KMALLOC_MINALIGN
mm/slub: remove unneeded return value of slab_pad_check
mm/slab_common: move dma-kmalloc caches creation into new_kmalloc_cache()
mm/slub: remove meaningless node check in ___slab_alloc()
mm/slub: remove duplicate flag in allocate_slab()
mm/slub: remove unused parameter in setup_object*()
mm/slab.c: fix comments
slab, documentation: add description of debugfs files for SLUB caches
mm/slub: sort debugfs output by frequency of stack traces
mm/slub: distinguish and print stack traces in debugfs files
mm/slub: use stackdepot to save stack trace in objects
mm/slub: move struct track init out of set_track()
lib/stackdepot: allow requesting early initialization dynamically
mm/slub, kunit: Make slub_kunit unaffected by user specified flags
mm/slab: remove some unused functions
Linus Torvalds [Wed, 25 May 2022 16:02:19 +0000 (09:02 -0700)]
linux/types.h: reinstate "__bitwise__" macro for user space use
Commit deb04b8d96d1 ("linux/types.h: remove unnecessary __bitwise__")
was right that there are no users of __bitwise__ in the kernel, but it
turns out there are user space users of it that do expect it.
It is, after all, in the uapi directory, so user space usage is to be
expected.
Instead of reverting the commit completely, let's just clarify the
situation so that it doesn't happen again, and have some in-code
explanations for why that "__bitwise__" still exists.
Sean Young [Wed, 25 May 2022 13:08:30 +0000 (14:08 +0100)]
media: lirc: revert removal of unused feature flags
Commit c81e09641682 ("media: lirc: remove unused lirc features") removed
feature flags which were never implemented, but they are still used by
the lirc daemon went built from source.
Reinstate these symbols in order not to break the lirc build.
Yanfei Xu [Mon, 23 May 2022 14:08:21 +0000 (22:08 +0800)]
KVM: x86: Fix the intel_pt PMI handling wrongly considered from guest
When kernel handles the vm-exit caused by external interrupts and NMI,
it always sets kvm_intr_type to tell if it's dealing an IRQ or NMI. For
the PMI scenario, it could be IRQ or NMI.
However, intel_pt PMIs are only generated for HARDWARE perf events, and
HARDWARE events are always configured to generate NMIs. Use
kvm_handling_nmi_from_guest() to precisely identify if the intel_pt PMI
came from the guest; this avoids false positives if an intel_pt PMI/NMI
arrives while the host is handling an unrelated IRQ VM-Exit.
Fixes: c0a8d0982cce ("KVM: x86: More precisely identify NMI from guest when handling PMI") Signed-off-by: Yanfei Xu <yanfei.xu@intel.com>
Message-Id: <20220523140821.1345605-1-yanfei.xu@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 24 May 2022 13:43:31 +0000 (09:43 -0400)]
x86, kvm: use correct GFP flags for preemption disabled
Commit ddd7ed842627 ("x86/kvm: Alloc dummy async #PF token outside of
raw spinlock") leads to the following Smatch static checker warning:
arch/x86/kernel/kvm.c:212 kvm_async_pf_task_wake()
warn: sleeping in atomic context
arch/x86/kernel/kvm.c
202 raw_spin_lock(&b->lock);
203 n = _find_apf_task(b, token);
204 if (!n) {
205 /*
206 * Async #PF not yet handled, add a dummy entry for the token.
207 * Allocating the token must be down outside of the raw lock
208 * as the allocator is preemptible on PREEMPT_RT kernels.
209 */
210 if (!dummy) {
211 raw_spin_unlock(&b->lock);
--> 212 dummy = kzalloc(sizeof(*dummy), GFP_KERNEL);
^^^^^^^^^^
Smatch thinks the caller has preempt disabled. The `smdb.py preempt
kvm_async_pf_task_wake` output call tree is:
The DEFINE_IDTENTRY_SYSVEC() is a wrapper that calls this function
from the call_on_irqstack_cond(). It's inside the call_on_irqstack_cond()
where preempt is disabled (unless it's already disabled). The
irq_enter/exit_rcu() functions disable/enable preempt.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wanpeng Li [Fri, 20 May 2022 14:15:18 +0000 (10:15 -0400)]
KVM: LAPIC: Drop pending LAPIC timer injection when canceling the timer
The timer is disarmed when switching between TSC deadline and other modes;
however, the pending timer is still in-flight, so let's accurately remove
any traces of the previous mode.
Fixes: 3becd0a020 ("KVM: x86: thoroughly disarm LAPIC timer around TSC deadline switch") Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
x86/kvm: Alloc dummy async #PF token outside of raw spinlock
Drop the raw spinlock in kvm_async_pf_task_wake() before allocating the
the dummy async #PF token, the allocator is preemptible on PREEMPT_RT
kernels and must not be called from truly atomic contexts.
Opportunistically document why it's ok to loop on allocation failure,
i.e. why the function won't get stuck in an infinite loop.
Reported-by: Yajun Deng <yajun.deng@linux.dev> Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM: x86: avoid calling x86 emulator without a decoded instruction
Whenever x86_decode_emulated_instruction() detects a breakpoint, it
returns the value that kvm_vcpu_check_breakpoint() writes into its
pass-by-reference second argument. Unfortunately this is completely
bogus because the expected outcome of x86_decode_emulated_instruction
is an EMULATION_* value.
Then, if kvm_vcpu_check_breakpoint() does "*r = 0" (corresponding to
a KVM_EXIT_DEBUG userspace exit), it is misunderstood as EMULATION_OK
and x86_emulate_instruction() is called without having decoded the
instruction. This causes various havoc from running with a stale
emulation context.
The fix is to move the call to kvm_vcpu_check_breakpoint() where it was
before commit 16822ce7b841 ("KVM: x86: Factor out x86 instruction
emulation with decoding") introduced x86_decode_emulated_instruction().
The other caller of the function does not need breakpoint checks,
because it is invoked as part of a vmexit and the processor has already
checked those before executing the instruction that #GP'd.
This fixes CVE-2022-1852.
Reported-by: Qiuhao Li <qiuhao@sysec.org> Reported-by: Gaoning Pan <pgn@zju.edu.cn> Reported-by: Yongkang Jia <kangel@zju.edu.cn> Fixes: 16822ce7b841 ("KVM: x86: Factor out x86 instruction emulation with decoding") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220311032801.3467418-2-seanjc@google.com>
[Rewrote commit message according to Qiuhao's report, since a patch
already existed to fix the bug. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Ashish Kalra [Mon, 16 May 2022 15:43:10 +0000 (15:43 +0000)]
KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak
For some sev ioctl interfaces, the length parameter that is passed maybe
less than or equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data
that PSP firmware returns. In this case, kmalloc will allocate memory
that is the size of the input rather than the size of the data.
Since PSP firmware doesn't fully overwrite the allocated buffer, these
sev ioctl interface may return uninitialized kernel slab memory.
Reported-by: Andy Nguyen <theflow@google.com> Suggested-by: David Rientjes <rientjes@google.com> Suggested-by: Peter Gonda <pgonda@google.com> Cc: kvm@vger.kernel.org Cc: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org Fixes: 4459b52063207 ("KVM: SVM: Move SEV code to separate file") Fixes: 9442fbf2a2267 ("KVM: SVM: add support for SEV attestation command") Fixes: 86e435d780581 ("KVM: SVM: Add KVM_SEV SEND_START command") Fixes: 1d520dec34f3d ("KVM: SVM: Add KVM_SEND_UPDATE_DATA command") Fixes: 84df5436d22d9 ("KVM: x86: Account a variety of miscellaneous allocations") Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> Reviewed-by: Peter Gonda <pgonda@google.com>
Message-Id: <20220516154310.3685678-1-Ashish.Kalra@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)
Set the starting uABI size of KVM's guest FPU to 'struct kvm_xsave',
i.e. to KVM's historical uABI size. When saving FPU state for usersapce,
KVM (well, now the FPU) sets the FP+SSE bits in the XSAVE header even if
the host doesn't support XSAVE. Setting the XSAVE header allows the VM
to be migrated to a host that does support XSAVE without the new host
having to handle FPU state that may or may not be compatible with XSAVE.
Setting the uABI size to the host's default size results in out-of-bounds
writes (setting the FP+SSE bits) and data corruption (that is thankfully
caught by KASAN) when running on hosts without XSAVE, e.g. on Core2 CPUs.
WARN if the default size is larger than KVM's historical uABI size; all
features that can push the FPU size beyond the historical size must be
opt-in.
==================================================================
BUG: KASAN: slab-out-of-bounds in fpu_copy_uabi_to_guest_fpstate+0x86/0x130
Read of size 8 at addr ffff888011e33a00 by task qemu-build/681
CPU: 1 PID: 681 Comm: qemu-build Not tainted 5.18.0-rc5-KASAN-amd64 #1
Hardware name: /DG35EC, BIOS ECG3510M.86A.0118.2010.0113.1426 01/13/2010
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x45
print_report.cold+0x45/0x575
kasan_report+0x9b/0xd0
fpu_copy_uabi_to_guest_fpstate+0x86/0x130
kvm_arch_vcpu_ioctl+0x72a/0x1c50 [kvm]
kvm_vcpu_ioctl+0x47f/0x7b0 [kvm]
__x64_sys_ioctl+0x5de/0xc90
do_syscall_64+0x31/0x50
entry_SYSCALL_64_after_hwframe+0x44/0xae
</TASK>
Allocated by task 0:
(stack is not available)
The buggy address belongs to the object at ffff888011e33800
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes to the right of
512-byte region [ffff888011e33800, ffff888011e33a00)
The buggy address belongs to the physical page:
page:0000000089cd4adb refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e30
head:0000000089cd4adb order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200dead000000000100dead000000000122ffff888001041c80
raw: 0000000000000000000000008010001000000001ffffffff0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address: ffff888011e33900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888011e33980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888011e33a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^ ffff888011e33a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888011e33b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Disabling lock debugging due to kernel taint
Fixes: 6cd21b440402 ("kvm: x86: Add support for getting/setting expanded xstate buffer") Fixes: ae621d613450 ("x86/fpu: Add uabi_size to guest_fpu") Reported-by: Zdenek Kaspar <zkaspar82@gmail.com> Cc: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Tested-by: Zdenek Kaspar <zkaspar82@gmail.com>
Message-Id: <20220504001219.983513-1-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 25 May 2022 09:09:49 +0000 (05:09 -0400)]
Merge tag 'kvm-riscv-5.19-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 5.19
- Added Sv57x4 support for G-stage page table
- Added range based local HFENCE functions
- Added remote HFENCE functions based on VCPU requests
- Added ISA extension registers in ONE_REG interface
- Updated KVM RISC-V maintainers entry to cover selftests support
Yang Weijiang [Thu, 12 May 2022 08:40:46 +0000 (04:40 -0400)]
KVM: selftests: x86: Fix test failure on arch lbr capable platforms
On Arch LBR capable platforms, LBR_FMT in perf capability msr is 0x3f,
so the last format test will fail. Use a true invalid format(0x30) for
the test if it's running on these platforms. Opportunistically change
the file name to reflect the tests actually carried out.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20220512084046.105479-1-weijiang.yang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wanpeng Li [Tue, 26 Apr 2022 08:25:51 +0000 (01:25 -0700)]
KVM: LAPIC: Trace LAPIC timer expiration on every vmentry
In commit e70379ec3311 ("KVM: LAPIC: Delay trace_kvm_wait_lapic_expire
tracepoint to after vmexit", 2019-06-04), trace_kvm_wait_lapic_expire
was moved after guest_exit_irqoff() because invoking tracepoints within
kvm_guest_enter/kvm_guest_exit caused a lockdep splat.
These days this is not necessary, because commit 6d1228391499 ("x86/kvm:
Move context tracking where it belongs", 2020-07-09) restricted
the RCU extended quiescent state to be closer to vmentry/vmexit.
Moving the tracepoint back to __kvm_wait_lapic_expire is more accurate,
because it will be reported even if vcpu_enter_guest causes multiple
vmentries via the IPI/Timer fast paths, and it allows the removal of
advance_expire_delta.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1650961551-38390-1-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linus Torvalds [Wed, 25 May 2022 02:55:07 +0000 (19:55 -0700)]
Merge tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache
Pull page cache updates from Matthew Wilcox:
- Appoint myself page cache maintainer
- Fix how scsicam uses the page cache
- Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS
- Remove the AOP flags entirely
- Remove pagecache_write_begin() and pagecache_write_end()
- Documentation updates
- Convert several address_space operations to use folios:
- is_dirty_writeback
- readpage becomes read_folio
- releasepage becomes release_folio
- freepage becomes free_folio
- Change filler_t to require a struct file pointer be the first
argument like ->read_folio
* tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache: (107 commits)
nilfs2: Fix some kernel-doc comments
Appoint myself page cache maintainer
fs: Remove aops->freepage
secretmem: Convert to free_folio
nfs: Convert to free_folio
orangefs: Convert to free_folio
fs: Add free_folio address space operation
fs: Convert drop_buffers() to use a folio
fs: Change try_to_free_buffers() to take a folio
jbd2: Convert release_buffer_page() to use a folio
jbd2: Convert jbd2_journal_try_to_free_buffers to take a folio
reiserfs: Convert release_buffer_page() to use a folio
fs: Remove last vestiges of releasepage
ubifs: Convert to release_folio
reiserfs: Convert to release_folio
orangefs: Convert to release_folio
ocfs2: Convert to release_folio
nilfs2: Remove comment about releasepage
nfs: Convert to release_folio
jfs: Convert to release_folio
...
Linus Torvalds [Wed, 25 May 2022 02:21:30 +0000 (19:21 -0700)]
Merge tag 'iomap-5.19-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong:
"There's a couple of corrections sent in by Andreas for some accounting
errors.
The biggest change this time around is that writeback errors longer
clear pageuptodate nor does XFS invalidate the page cache anymore.
This brings XFS (and gfs2/zonefs) behavior in line with every other
Linux filesystem driver, and fixes some UAF bugs that only cropped up
after willy turned on multipage folios for XFS in 5.18-rc1.
Regrettably, it took all the way to the end of the 5.18 cycle to find
the source of these bugs and reach a consensus that XFS' writeback
failure behavior from 20 years ago is no longer necessary.
Summary:
- Fix a couple of accounting errors in the buffered io code.
- Discontinue the practice of marking folios !uptodate and
invalidating them when writeback fails.
This fixes some UAF bugs when multipage folios are enabled, and
brings the behavior of XFS/gfs/zonefs into alignment with the
behavior of all the other Linux filesystems"
* tag 'iomap-5.19-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: don't invalidate folios after writeback errors
iomap: iomap_write_end cleanup
iomap: iomap_write_failed fix
Linus Torvalds [Wed, 25 May 2022 02:09:16 +0000 (19:09 -0700)]
Merge tag 'dlm-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This includes several large patches to improve endian handling and
remove sparse warnings. The code previously used in/out, in-place
endianness conversion functions.
Other code cleanup includes the list iterator changes.
Finally, a long standing bug was found and fixed, caused by missed
decrement on an lock struct ref count"
* tag 'dlm-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (28 commits)
dlm: use kref_put_lock in __put_lkb
dlm: use kref_put_lock in put_rsb
dlm: remove unnecessary error assign
dlm: fix missing lkb refcount handling
fs: dlm: cast resource pointer to uintptr_t
dlm: replace usage of found with dedicated list iterator variable
dlm: remove usage of list iterator for list_add() after the loop body
dlm: fix pending remove if msg allocation fails
dlm: fix wake_up() calls for pending remove
dlm: check required context while close
dlm: cleanup lock handling in dlm_master_lookup
dlm: remove found label in dlm_master_lookup
dlm: remove __user conversion warnings
dlm: move conversion to compile time
dlm: use __le types for dlm messages
dlm: use __le types for rcom messages
dlm: use __le types for dlm header
dlm: use __le types for options header
dlm: add __CHECKER__ for false positives
dlm: move global to static inits
...
Linus Torvalds [Wed, 25 May 2022 02:04:46 +0000 (19:04 -0700)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Various bug fixes and cleanups for ext4.
In particular, move the crypto related fucntions from fs/ext4/super.c
into a new fs/ext4/crypto.c, and fix a number of bugs found by fuzzers
and error injection tools"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits)
ext4: only allow test_dummy_encryption when supported
ext4: fix bug_on in __es_tree_search
ext4: avoid cycles in directory h-tree
ext4: verify dir block before splitting it
ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state
ext4: fix bug_on in ext4_writepages
ext4: refactor and move ext4_ioctl_get_encryption_pwsalt()
ext4: cleanup function defs from ext4.h into crypto.c
ext4: move ext4 crypto code to its own file crypto.c
ext4: fix memory leak in parse_apply_sb_mount_options()
ext4: reject the 'commit' option on ext2 filesystems
ext4: remove duplicated #include of dax.h in inode.c
ext4: fix race condition between ext4_write and ext4_convert_inline_data
ext4: convert symlink external data block mapping to bdev
ext4: add nowait mode for ext4_getblk()
ext4: fix journal_ioprio mount option handling
ext4: mark group as trimmed only if it was fully scanned
ext4: fix use-after-free in ext4_rename_dir_prepare
ext4: add unmount filesystem message
ext4: remove unnecessary conditionals
...
Linus Torvalds [Wed, 25 May 2022 02:00:41 +0000 (19:00 -0700)]
Merge tag 'gfs2-v5.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Clean up the allocation of glocks that have an address space attached
- Quota locking fix and quota iomap conversion
- Fix the FITRIM error reporting
- Some list iterator cleanups
* tag 'gfs2-v5.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Convert function bh_get to use iomap
gfs2: use i_lock spin_lock for inode qadata
gfs2: Return more useful errors from gfs2_rgrp_send_discards()
gfs2: Use container_of() for gfs2_glock(aspace)
gfs2: Explain some direct I/O oddities
gfs2: replace 'found' with dedicated list iterator variable
Linus Torvalds [Wed, 25 May 2022 01:52:35 +0000 (18:52 -0700)]
Merge tag 'for-5.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Features:
- subpage:
- support for PAGE_SIZE > 4K (previously only 64K)
- make it work with raid56
- repair super block num_devices automatically if it does not match
the number of device items
- defrag can convert inline extents to regular extents, up to now
inline files were skipped but the setting of mount option
max_inline could affect the decision logic
- zoned:
- minimal accepted zone size is explicitly set to 4MiB
- make zone reclaim less aggressive and don't reclaim if there are
enough free zones
- add per-profile sysfs tunable of the reclaim threshold
- allow automatic block group reclaim for non-zoned filesystems, with
sysfs tunables
- tree-checker: new check, compare extent buffer owner against owner
rootid
Performance:
- avoid blocking on space reservation when doing nowait direct io
writes (+7% throughput for reads and writes)
- NOCOW write throughput improvement due to refined locking (+3%)
- send: reduce pressure to page cache by dropping extent pages right
after they're processed
Core:
- convert all radix trees to xarray
- add iterators for b-tree node items
- support printk message index
- user bulk page allocation for extent buffers
- switch to bio_alloc API, use on-stack bios where convenient, other
bio cleanups
- use rw lock for block groups to favor concurrent reads
- simplify workques, don't allocate high priority threads for all
normal queues as we need only one
- refactor scrub, process chunks based on their constraints and
similarity
- allocate direct io structures on stack and pass around only
pointers, avoids allocation and reduces potential error handling
Fixes:
- fix count of reserved transaction items for various inode
operations
- fix deadlock between concurrent dio writes when low on free data
space
- fix a few cases when zones need to be finished
VFS, iomap:
- add helper to check if sb write has started (usable for assertions)
- new helper iomap_dio_alloc_bio, export iomap_dio_bio_end_io"
* tag 'for-5.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (173 commits)
btrfs: zoned: introduce a minimal zone size 4M and reject mount
btrfs: allow defrag to convert inline extents to regular extents
btrfs: add "0x" prefix for unsupported optional features
btrfs: do not account twice for inode ref when reserving metadata units
btrfs: zoned: fix comparison of alloc_offset vs meta_write_pointer
btrfs: send: avoid trashing the page cache
btrfs: send: keep the current inode open while processing it
btrfs: allocate the btrfs_dio_private as part of the iomap dio bio
btrfs: move struct btrfs_dio_private to inode.c
btrfs: remove the disk_bytenr in struct btrfs_dio_private
btrfs: allocate dio_data on stack
iomap: add per-iomap_iter private data
iomap: allow the file system to provide a bio_set for direct I/O
btrfs: add a btrfs_dio_rw wrapper
btrfs: zoned: zone finish unused block group
btrfs: zoned: properly finish block group on metadata write
btrfs: zoned: finish block group when there are no more allocatable bytes left
btrfs: zoned: consolidate zone finish functions
btrfs: zoned: introduce btrfs_zoned_bg_is_full
btrfs: improve error reporting in lookup_inline_extent_backref
...
Linus Torvalds [Wed, 25 May 2022 01:42:04 +0000 (18:42 -0700)]
Merge tag 'erofs-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs (and fscache) updates from Gao Xiang:
"After working on it on the mailing list for more than half a year, we
finally form 'erofs over fscache' feature into shape. Hopefully it
could bring more possibility to the communities.
The story mainly started from a new project what we called "RAFS v6" [1]
for Nydus image service almost a year ago, which enhances EROFS to be
a new form of one bootstrap (which includes metadata representing the
whole fs tree) + several data-deduplicated content addressable blobs
(actually treated as multiple devices). Each blob can represent one
container image layer but not quite exactly since all new data can be
fully existed in the previous blobs so no need to introduce another
new blob.
It is actually not a new idea (at least on my side it's much like a
simpilied casync [2] for now) and has many benefits over per-file
blobs or some other exist ways since typically each RAFS v6 image only
has dozens of device blobs instead of thousands of per-file blobs.
It's easy to be signed with user keys as a golden image, transfered
untouchedly with minimal overhead over the network, kept in some type
of storage conveniently, and run with (optional) runtime verification
but without involving too many irrelevant features crossing the system
beyond EROFS itself. At least it's our final goal and we're keeping
working on it. There was also a good summary of this approach from the
casync author [3].
Regardless further optimizations, this work is almost done in the
previous Linux release cycles. In this round, we'd like to introduce
on-demand load for EROFS with the fscache/cachefiles infrastructure,
considering the following advantages:
- Introduce new file-based backend to EROFS. Although each image only
contains dozens of blobs but in densely-deployed runC host for
example, there could still be massive blobs on a machine, which is
messy if each blob is treated as a device. In contrast, fscache and
cachefiles are really great interfaces for us to make them work.
- Introduce on-demand load to fscache and EROFS. Previously, fscache
is mainly used to caching network-likewise filesystems, now it can
support on-demand downloading for local fses too with the exact
localfs on-disk format. It has many advantages which we're been
described in the latest patchset cover letter [4]. In addition to
that, most importantly, the cached data is still stored in the
original local fs on-disk format so that it's still the one signed
with private keys but only could be partially available. Users can
fully trust it during running. Later, users can also back up
cachefiles easily to another machine.
- More reliable on-demand approach in principle. After data is all
available locally, user daemon can be no longer online in some use
cases, which helps daemon crash recovery (filesystems can still in
service) and hot-upgrade (user daemon can be upgraded more
frequently due to new features or protocols introduced.)
- Other format can also be converted to EROFS filesystem format over
the internet on the fly with the new on-demand load feature and
mounted. That is entirely possible with on-demand load feature as
long as such archive format metadata can be fetched in advance like
stargz.
In addition, although currently our target user is Nydus image service [5],
but laterly, it can be used for other use cases like on-demand system
booting, etc. As for the fscache on-demand load feature itself,
strictly it can be used for other local fses too. Laterly we could
promote most code to the iomap infrastructure and also enhance it in
the read-write way if other local fses are interested.
Thanks David Howells for taking so much time and patience on this
these months, many thanks with great respect here again! Thanks Jeffle
for working on this feature and Xin Yin from Bytedance for
asynchronous I/O implementation as well as Zichen Tian, Jia Zhu, and
Yan Song for testing, much appeciated. We're also exploring more
possibly over fscache cache management over FSDAX for secure
containers and working on more improvements and useful features for
fscache, cachefiles, and on-demand load.
In addition to "erofs over fscache", NFS export and idmapped mount are
also completed in this cycle for container use cases as well.
Summary:
- Add erofs on-demand load support over fscache
- Support NFS export for erofs
- Support idmapped mounts for erofs
- Don't prompt for risk any more when using big pcluster
- Fix buffer copy overflow of ztailpacking feature
Linus Torvalds [Wed, 25 May 2022 01:30:27 +0000 (18:30 -0700)]
Merge tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- fix referencing wrong parent directory information during rename
- introduce a sys_tz mount option to use system timezone
- improve performance while zeroing a cluster with dirsync mount option
- fix slab-out-bounds in exat_clear_bitmap() reported from syzbot
* tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: check if cluster num is valid
exfat: reduce block requests when zeroing a cluster
block: add sync_blockdev_range()
exfat: introduce mount option 'sys_tz'
exfat: fix referencing wrong parent directory information after renaming
Linus Torvalds [Wed, 25 May 2022 01:19:06 +0000 (18:19 -0700)]
Merge tag 'fs.idmapped.v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull fs idmapping updates from Christian Brauner:
"This contains two minor updates:
- An update to the idmapping documentation by Rodrigo making it
easier to understand that we first introduce several use-cases that
fail without idmapped mounts simply to explain how they can be
handled with idmapped mounts.
- When changing a mount's idmapping we now hold writers to make it
more robust.
This is similar to turning a mount ro with the difference that in
contrast to turning a mount ro changing the idmapping can only ever
be done once while a mount can transition between ro and rw as much
as it wants.
The vfs layer itself takes care to retrieve the idmapping of a
mount once ensuring that the idmapping used for vfs permission
checking is identical to the idmapping passed down to the
filesystem. All filesystems with FS_ALLOW_IDMAP raised take the
same precautions as the vfs in code-paths that are outside of
direct control of the vfs such as ioctl()s.
However, holding writers makes this more robust and predictable for
both the kernel and userspace.
This is a minor user-visible change. But it is extremely unlikely
to matter. The caller must've created a detached mount via
OPEN_TREE_CLONE and then handed that O_PATH fd to another process
or thread which then must've gotten a writable fd for that mount
and started creating files in there while the caller is still
changing mount properties. While not impossible it will be an
extremely rare corner-case and should in general be considered a
bug in the application. Consider making a mount MOUNT_ATTR_NOEXEC
or MOUNT_ATTR_NODEV while allowing someone else to perform lookups
or exec'ing in parallel by handing them a copy of the
OPEN_TREE_CLONE fd or another fd beneath that mount.
I've pinged all major users of idmapped mounts pointing out this
change and none of them have active writers on a mount while still
changing mount properties. It would've been strange if they did.
The rest and majority of the work will be coming through the overlayfs
tree this cycle. In addition to overlayfs this cycle should also see
support for idmapped mounts on erofs as I've acked a patch to this
effect a little while ago"
* tag 'fs.idmapped.v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fs: hold writers when changing mount's idmapping
docs: Add small intro to idmap examples
Linus Torvalds [Wed, 25 May 2022 01:09:16 +0000 (18:09 -0700)]
Merge tag 'media/v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- dvb-usb drivers entries got reworked to avoid usage of magic numbers
to refer to data position inside tables
- vcodec driver has gained support for MT8186 and for vp8 and vp9
stateless codecs
- hantro has gained support for Hantro G1 on RK366x
- Added more h264 levels on coda960
- ccs gained support for MIPI CSI-2 28 bits per pixel raw data type
- venus driver gained support for Qualcomm custom compressed pixel
formats
- lots of driver fixes and updates
* tag 'media/v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: hantro: Enable HOLD_CAPTURE_BUF for H.264
media: hantro: Add H.264 field decoding support
media: hantro: h264: Make dpb entry management more robust
media: hantro: Stop using H.264 parameter pic_num
media: rkvdec: Enable capture buffer holding for H264
media: rkvdec-h264: Add field decoding support
media: rkvdec: Ensure decoded resolution fit coded resolution
media: rkvdec: h264: Fix reference frame_num wrap for second field
media: rkvdec: h264: Validate and use pic width and height in mbs
media: rkvdec: Move H264 SPS validation in rkvdec-h264
media: rkvdec: h264: Fix bit depth wrap in pps packet
media: rkvdec: h264: Fix dpb_valid implementation
media: rkvdec: Stop overclocking the decoder
media: v4l2: Reorder field reflist
media: h264: Sort p/b reflist using frame_num
media: v4l2: Trace calculated p/b0/b1 initial reflist
media: h264: Store all fields into the unordered list
media: h264: Store current picture fields
media: h264: Increase reference lists size to 32
media: h264: Use v4l2_h264_reference for reflist
...
Linus Torvalds [Tue, 24 May 2022 23:34:14 +0000 (16:34 -0700)]
Merge tag 'devprop-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"These mostly extend the device property API and make it easier to use
in some cases.
Specifics:
- Allow error pointer to be passed to fwnode APIs (Andy Shevchenko).
- Introduce fwnode_for_each_parent_node() (Andy Shevchenko, Douglas
Anderson).
- Advertise fwnode and device property count API calls (Andy
Shevchenko).
- Clean up fwnode_is_ancestor_of() (Andy Shevchenko).
- Convert device_{dma_supported,get_dma_attr} to fwnode (Sakari
Ailus).
- Release subnode properties with data nodes (Sakari Ailus).
- Add ->iomap() and ->irq_get() to fwnode operations (Sakari Ailus)"
* tag 'devprop-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
device property: Advertise fwnode and device property count API calls
device property: Fix recent breakage of fwnode_get_next_parent_dev()
device property: Drop 'test' prefix in parameters of fwnode_is_ancestor_of()
device property: Introduce fwnode_for_each_parent_node()
device property: Allow error pointer to be passed to fwnode APIs
ACPI: property: Release subnode properties with data nodes
device property: Add irq_get to fwnode operation
device property: Add iomap to fwnode operations
ACPI: property: Move acpi_fwnode_device_get_match_data() up
device property: Convert device_{dma_supported,get_dma_attr} to fwnode
Linus Torvalds [Tue, 24 May 2022 23:19:30 +0000 (16:19 -0700)]
Merge tag 'thermal-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add a thermal library and thermal tools to wrap the netlink
interface into event-based callbacks, improve overheat condition
handling during suspend-to-idle on Intel SoCs, add some new hardware
support, fix bugs and clean up code.
Specifics:
- Add thermal library and thermal tools to encapsulate the netlink
into event based callbacks (Daniel Lezcano, Jiapeng Chong).
- Improve overheat condition handling during suspend-to-idle in the
Intel PCH thermal driver (Zhang Rui).
- Use local ops instead of global ops in devfreq_cooling (Kant Fan).
- Clean up _OSC handling in int340x (Davidlohr Bueso).
- Switch hisi_termal from CONFIG_PM_SLEEP guards to pm_sleep_ptr()
(Hesham Almatary).
- Add new k3 j72xx bangdap driver and the corresponding bindings
(Keerthy).
- Fix missing of_node_put() in the SC iMX driver at probe time
(Miaoqian Lin).
- Fix memory leak in __thermal_cooling_device_register()
when device_register() fails by calling
thermal_cooling_device_destroy_sysfs() (Yang Yingliang).
- Add sc8180x and sc8280xp compatible string in the DT bindings and
lMH support for QCom tsens driver (Bjorn Andersson).
- Fix OTP Calibration Register values conforming to the documentation
on RZ/G2L and bindings documentation for RZ/G2UL (Biju Das).
- Fix type in kerneldoc description for __thermal_bind_params
(Corentin Labbe).
- Fix potential NULL dereference in sr_thermal_probe() on Broadcom
platform (Zheng Yongjun).
- Add change mode ops to the thermal-of sensor (Manaf Meethalavalappu
Pallikunhi).
- Fix non-negative value support by preventing the value to be clamp
to zero (Stefan Wahren).
- Add compatible string and DT bindings for MSM8960 tsens driver
(Dmitry Baryshkov).
- Add hwmon support for K3 driver (Massimiliano Minella).
- Refactor and add multiple generations support for QCom ADC driver
(Jishnu Prakash).
- Use platform_get_irq_optional() to get the interrupt on RCar driver
and document Document RZ/V2L bindings (Lad Prabhakar).
- Remove NULL check after container_of() call from the Intel HFI
thermal driver (Haowen Bai)"
* tag 'thermal-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (38 commits)
thermal: intel: pch: improve the cooling delay log
thermal: intel: pch: enhance overheat handling
thermal: intel: pch: move cooling delay to suspend_noirq phase
PM: wakeup: expose pm_wakeup_pending to modules
thermal: k3_j72xx_bandgap: Add the bandgap driver support
dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation
thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe
thermal/core: Fix memory leak in __thermal_cooling_device_register()
dt-bindings: thermal: tsens: Add sc8280xp compatible
dt-bindings: thermal: lmh: Add Qualcomm sc8180x compatible
thermal/drivers/qcom/lmh: Add sc8180x compatible
thermal/drivers/rz2gl: Fix OTP Calibration Register values
dt-bindings: thermal: rzg2l-thermal: Document RZ/G2UL bindings
thermal: thermal_of: fix typo on __thermal_bind_params
tools/thermal: remove unneeded semicolon
tools/lib/thermal: remove unneeded semicolon
thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe
tools/thermal: Add thermal daemon skeleton
tools/thermal: Add a temperature capture tool
tools/thermal: Add util library
...
Linus Torvalds [Tue, 24 May 2022 23:04:25 +0000 (16:04 -0700)]
Merge tag 'pm-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add support for 'artificial' Energy Models in which power
numbers for different entities may be in different scales, add support
for some new hardware, fix bugs and clean up code in multiple places.
Specifics:
- Update the Energy Model support code to allow the Energy Model to
be artificial, which means that the power values may not be on a
uniform scale with other devices providing power information, and
update the cpufreq_cooling and devfreq_cooling thermal drivers to
support artificial Energy Models (Lukasz Luba).
- Make DTPM check the Energy Model type (Lukasz Luba).
- Fix policy counter decrementation in cpufreq if Energy Model is in
use (Pierre Gondois).
- Add CPU-based scaling support to passive devfreq governor (Saravana
Kannan, Chanwoo Choi).
- Update the rk3399_dmc devfreq driver (Brian Norris).
- Export dev_pm_ops instead of suspend() and resume() in the IIO
chemical scd30 driver (Jonathan Cameron).
- Add namespace variants of EXPORT[_GPL]_SIMPLE_DEV_PM_OPS and
PM-runtime counterparts (Jonathan Cameron).
- Move symbol exports in the IIO chemical scd30 driver into the
IIO_SCD30 namespace (Jonathan Cameron).
- Allow dynamic debug to control printing of PM messages (David
Cohen).
- Fix some kernel-doc comments in hibernation code (Yang Li, Haowen
Bai).
- Preserve ACPI-table override during hibernation (Amadeusz
Sławiński).
- Improve support for suspend-to-RAM for PSCI OSI mode (Ulf Hansson).
- Make Intel RAPL power capping driver support the RaptorLake and
AlderLake N processors (Zhang Rui, Sumeet Pawnikar).
- Remove redundant store to value after multiply in the RAPL power
capping driver (Colin Ian King).
- Add AlderLake processor support to the intel_idle driver (Zhang
Rui).
- Fix regression leading to no genpd governor in the PSCI cpuidle
driver and fix the riscv-sbi cpuidle driver to allow a genpd
governor to be used (Ulf Hansson).
- Fix cpufreq governor clean up code to avoid using kfree() directly
to free kobject-based items (Kevin Hao).
- Prepare cpufreq for powerpc's asm/prom.h cleanup (Christophe
Leroy).
- Make intel_pstate notify frequency invariance code when no_turbo is
turned on and off (Chen Yu).
- Add Sapphire Rapids OOB mode support to intel_pstate (Srinivas
Pandruvada).
- Make cpufreq avoid unnecessary frequency updates due to mismatch
between hardware and the frequency table (Viresh Kumar).
- Make remove_cpu_dev_symlink() clear the real_cpus mask to simplify
code (Viresh Kumar).
- Rearrange cpufreq_offline() and cpufreq_remove_dev() to make the
calling convention for some driver callbacks consistent (Rafael
Wysocki).
- Avoid accessing half-initialized cpufreq policies from the show()
and store() sysfs functions (Schspa Shi).
- Rearrange cpufreq_offline() to make the calling convention for some
driver callbacks consistent (Schspa Shi).
- Update CPPC handling in cpufreq (Pierre Gondois).
- Move genpd's time-accounting to ktime_get_mono_fast_ns() (Ulf
Hansson).
- Improve the way genpd deals with its governors (Ulf Hansson).
- Update the turbostat utility to version 2022.04.16 (Len Brown, Dan
Merillat, Sumeet Pawnikar, Zephaniah E. Loss-Cutler-Hull, Chen Yu)"
* tag 'pm-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (94 commits)
PM: domains: Trust domain-idle-states from DT to be correct by genpd
PM: domains: Measure power-on/off latencies in genpd based on a governor
PM: domains: Allocate governor data dynamically based on a genpd governor
PM: domains: Clean up some code in pm_genpd_init() and genpd_remove()
PM: domains: Fix initialization of genpd's next_wakeup
PM: domains: Fixup QoS latency measurements for IRQ safe devices in genpd
PM: domains: Measure suspend/resume latencies in genpd based on governor
PM: domains: Move the next_wakeup variable into the struct gpd_timing_data
PM: domains: Allocate gpd_timing_data dynamically based on governor
PM: domains: Skip another warning in irq_safe_dev_in_sleep_domain()
PM: domains: Rename irq_safe_dev_in_no_sleep_domain() in genpd
PM: domains: Don't check PM_QOS_FLAG_NO_POWER_OFF in genpd
PM: domains: Drop redundant code for genpd always-on governor
PM: domains: Add GENPD_FLAG_RPM_ALWAYS_ON for the always-on governor
powercap: intel_rapl: remove redundant store to value after multiply
cpufreq: CPPC: Enable dvfs_possible_from_any_cpu
cpufreq: CPPC: Enable fast_switch
ACPI: CPPC: Assume no transition latency if no PCCT
ACPI: bus: Set CPPC _OSC bits for all and when CPPC_LIB is supported
ACPI: CPPC: Check _OSC for flexible address space
...
Linus Torvalds [Tue, 24 May 2022 22:46:55 +0000 (15:46 -0700)]
Merge tag 'acpi-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA kernel code to upstream revision 20220331,
improve handling of PCI devices that are in D3cold during system
initialization, add support for a few features, fix bugs and clean up
code.
Specifics:
- Update ACPICA code in the kernel to upstream revision 20220331
including the following changes:
- Add support for the Windows 11 _OSI string (Mario Limonciello)
- Add the CFMWS subtable to the CEDT table (Lawrence Hileman).
- iASL: NHLT: Treat Terminator as specific_config (Piotr
Maziarz).
- iASL: NHLT: Fix parsing undocumented bytes at the end of
Endpoint Descriptor (Piotr Maziarz).
- iASL: NHLT: Rename linux specific strucures to device_info
(Piotr Maziarz).
- Add new ACPI 6.4 semantics to Load() and LoadTable() (Bob
Moore).
- Clean up double word in comment (Tom Rix).
- Update copyright notices to the year 2022 (Bob Moore).
- Remove some tabs and // comments - automated cleanup (Bob
Moore).
- Replace zero-length array with flexible-array member (Gustavo
A. R. Silva).
- Interpreter: Add units to time variable names (Paul Menzel).
- Add support for ARM Performance Monitoring Unit Table (Besar
Wicaksono).
- Inform users about ACPI spec violation related to sleep length
(Paul Menzel).
- iASL/MADT: Add OEM-defined subtable (Bob Moore).
- Interpreter: Fix some typo mistakes (Selvarasu Ganesan).
- Updates for revision E.d of IORT (Shameer Kolothum).
- Use ACPI_FORMAT_UINT64 for 64-bit output (Bob Moore).
- Improve debug messages in the ACPI device PM code (Rafael Wysocki).
- Block ASUS B1400CEAE from suspend to idle by default (Mario
Limonciello).
- Improve handling of PCI devices that are in D3cold during system
initialization (Rafael Wysocki).
- Fix BERT error region memory mapping (Lorenzo Pieralisi).
- Add support for NVIDIA 16550-compatible port subtype to the SPCR
parsing code (Jeff Brasen).
- Use static for BGRT_SHOW kobj_attribute defines (Tom Rix).
- Fix missing prototype warning for acpi_agdi_init() (Ilkka
Koskinen).
- Fix missing ERST record ID in the APEI code (Liu Xinpeng).
- Make APEI error injection to refuse to inject into the zero page
(Tony Luck).
- Correct description of INT3407 / INT3532 DPTF attributes in sysfs
(Sumeet Pawnikar).
- Add support for high frequency impedance notification to the DPTF
driver (Sumeet Pawnikar).
- Make mp_config_acpi_gsi() a void function (Li kunyu).
- Unify Package () representation for properties in the ACPI device
properties documentation (Andy Shevchenko).
- Include UUID in _DSM evaluation warning (Michael Niewöhner)"
* tag 'acpi-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (41 commits)
Revert "ACPICA: executer/exsystem: Warn about sleeps greater than 10 ms"
ACPI: utils: include UUID in _DSM evaluation warning
ACPI: PM: Block ASUS B1400CEAE from suspend to idle by default
x86: ACPI: Make mp_config_acpi_gsi() a void function
ACPI: DPTF: Add support for high frequency impedance notification
ACPI: AGDI: Fix missing prototype warning for acpi_agdi_init()
ACPI: bus: Avoid non-ACPI device objects in walks over children
ACPI: DPTF: Correct description of INT3407 / INT3532 attributes
ACPI: BGRT: use static for BGRT_SHOW kobj_attribute defines
ACPI, APEI, EINJ: Refuse to inject into the zero page
ACPI: PM: Always print final debug message in acpi_device_set_power()
ACPI: SPCR: Add support for NVIDIA 16550-compatible port subtype
ACPI: docs: enumeration: Unify Package () for properties (part 2)
ACPI: APEI: Fix missing ERST record id
ACPICA: Update version to 20220331
ACPICA: exsystem.c: Use ACPI_FORMAT_UINT64 for 64-bit output
ACPICA: IORT: Updates for revision E.d
ACPICA: executer/exsystem: Fix some typo mistakes
ACPICA: iASL/MADT: Add OEM-defined subtable
ACPICA: executer/exsystem: Warn about sleeps greater than 10 ms
...
Linus Torvalds [Tue, 24 May 2022 22:21:15 +0000 (15:21 -0700)]
Merge tag 'for-linus-2022052401' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- support for pens with 3 buttons with Wacom driver (Joshua Dickens)
- support for HID_DG_SCANTIME to report the timestamp for pen and touch
events in Wacom driver (Joshua Dickens)
- support for sensor discovery in amd-sfh driver (Basavaraj Natikar)
- support for wider variety of Huion tablets ported from DIGImend
project (José Expósito, Nikolai Kondrashov)
- new device IDs and other assorted small code cleanups
* tag 'for-linus-2022052401' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (44 commits)
HID: apple: Properly handle function keys on Keychron keyboards
HID: uclogic: Switch to Digitizer usage for styluses
HID: uclogic: Add pen support for XP-PEN Star 06
HID: uclogic: Differentiate touch ring and touch strip
HID: uclogic: Always shift touch reports to zero
HID: uclogic: Do not focus on touch ring only
HID: uclogic: Return raw parameters from v2 pen init
HID: uclogic: Move param printing to a function
HID: core: Display "SENSOR HUB" for sensor hub bus string in hid_info
HID: amd_sfh: Move bus declaration outside of amd-sfh
HID: amd_sfh: Add physical location to HID device
HID: amd_sfh: Modify the hid name
HID: amd_sfh: Modify the bus name
HID: amd_sfh: Add sensor name by index for debug info
HID: amd_sfh: Add support for sensor discovery
HID: bigben: fix slab-out-of-bounds Write in bigben_probe
Hid: wacom: Fix kernel test robot warning
HID: uclogic: Disable pen usage for Huion keyboard interfaces
HID: uclogic: Support disabling pen usage
HID: uclogic: Pass keyboard reports as is
...
Linus Torvalds [Tue, 24 May 2022 22:13:30 +0000 (15:13 -0700)]
Merge tag 'spi-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This is quite a quiet release but some new drivers mean that the
diffstat is fairly large. The new drivers include the aspeed driver
which is migrated from MTD as part of the ongoing move of controllers
with specialised support for SPI flashes into the SPI subsystem.
- Support for devices which flip CPHA during recieve only transfers
(eg, if MOSI and MISO have inverted polarity).
- Overhaul of the i.MX driver, including the addition of PIO support
for better performance on small transfers.
- Migration of the Aspeed driver from MTD.
- Support for Aspeed AST2400, Ingenic JZ4775 and X1/2000 and MediaTek
IPM and SFI"
* tag 'spi-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (84 commits)
spi: spi-au1550: replace ternary operator with min()
mtd: spi-nor: aspeed: set the decoding size to at least 2MB for AST2600
spi: aspeed: Calibrate read timings
spi: aspeed: Add support for the AST2400 SPI controller
spi: aspeed: Workaround AST2500 limitations
spi: aspeed: Adjust direct mapping to device size
spi: aspeed: Add support for direct mapping
spi: spi-mem: Convert Aspeed SMC driver to spi-mem
spi: Convert the Aspeed SMC controllers device tree binding
spi: spi-cadence: Update ISR status variable type to irqreturn_t
spi: Doc fix - Describe add_lock and dma_map_dev in spi_controller
spi: cadence-quadspi: Handle spi_unregister_master() in remove()
spi: stm32-qspi: Remove SR_BUSY bit check before sending command
spi: stm32-qspi: Always check SR_TCF flags in stm32_qspi_wait_cmd()
spi: stm32-qspi: Fix wait_cmd timeout in APM mode
spi: cadence-quadspi: remove unnecessary (void *) casts
spi: cadence-quadspi: Add missing blank line in cqspi_request_mmap_dma()
spi: spi-imx: mx51_ecspi_prepare_message(): skip writing MX51_ECSPI_CONFIG register if unchanged
spi: spi-imx: add PIO polling support
spi: spi-imx: replace struct spi_imx_data::bitbang by pointer to struct spi_controller
...
Linus Torvalds [Tue, 24 May 2022 22:09:47 +0000 (15:09 -0700)]
Merge tag 'regulator-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is mostly a drivers update including a couple of new drivers but
we do have some fixes and improvements to the core as well.
- Make sure we don't log spuriously about uncontrollable regulators.
- Don't use delays when we should use sleeps for regulators with
larger ramp times.
- Support for MediaTek MT6358 and MT6366, Richtek RT5759 and Silicon
Mitus SM5703"
* tag 'regulator-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (36 commits)
regulator: scmi: Fix refcount leak in scmi_regulator_probe
regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt
regulator: qcom_smd: Fix up PM8950 regulator configuration
regulator: core: Fix enable_count imbalance with EXCLUSIVE_GET
regulator: core: Add error flags to sysfs attributes
regulator: dt-bindings: qcom,rpmh: document vdd-l7-bob-supply on PMR735A
regulator: dt-bindings: qcom,rpmh: document supplies per variant
regulator: dt-bindings: qcom,rpmh: update maintainers
regulator: mt6315: Enforce regulator-compatible, not name
regulator: pca9450: Enable DVS control via PMIC_STBY_REQ
regulator: pca9450: Make warm reset on WDOG_B assertion
regulator: Add property for WDOG_B warm reset
regulator: pca9450: Make I2C Level Translator configurable
regulator: Add property for I2C level shifter
regulator: sm5703: Correct reference to the common regulator schema
regulator: sm5703-regulator: Add regulators support for SM5703 MFD
dt-bindings: regulator: Add bindings for Silicon Mitus SM5703 regulators
regulator: richtek,rt4801: parse GPIOs per regulator
regulator: dt-bindings: richtek,rt4801: use existing ena_gpiod feature
regulator: core: Sleep (not delay) in set_voltage()
...
Linus Torvalds [Tue, 24 May 2022 22:02:58 +0000 (15:02 -0700)]
Merge tag 'regmap-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"The main change here is Marek's addition of bulk read/write callbacks
for individual regmaps, we've supported single register operations for
a while but there's enough hardware out there which can use bulk
equivalents to make it worthwhile"
* tag 'regmap-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Add missing map->bus check
regmap: Add bulk read/write callbacks into regmap_config
regmap: cache: set max_register with reg_stride
regmap: Constify static regmap_bus structs
Linus Torvalds [Tue, 24 May 2022 21:56:38 +0000 (14:56 -0700)]
Merge tag 'mmc-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Support zero-out using TRIM for eMMC
- Allow to override the busy-timeout for the ioctl-cmds
MMC host:
- Continued the conversion of DT bindings into the JSON schema
- jz4740: Apply DMA engine limits to maximum segment size
- mmci_stm32: Use a buffer for unaligned DMA requests
- mmc_spi: Enabled high-speed modes via parsing of DT
- omap: Make clock management to be compliant with CCF
- renesas_sdhi:
- Support eMMC HS400 mode for R-Car V3H ES2.0
- Don't allow support for eMMC HS400 for R-Car V3M/D3
- sdhci_am654: Fix problem when SD card slot lacks the card detect
line
- sdhci-esdhc-imx: Add support for the imx8dxl variant
- sdhci-brcmstb: Enable support for clock gating to save power
- sdhci-msm:
- Add support for the sdx65 variant
- Add support for the sm8150 variant
- sdhci-of-dwcmshc: Add support for the Rockchip rk3588 variant
- sdhci-pci-gli: Add workaround to allow GL9755 to enter ASPM L1.2"
* tag 'mmc-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (52 commits)
mmc: sdhci-of-arasan: Add NULL check for data field
mmc: core: Support zeroout using TRIM for eMMC
mmc: sdhci-brcmstb: Fix compiler warning
mmc: sdhci-msm: Add compatible string check for sdx65
dt-bindings: mmc: sdhci-msm: Document the SDX65 compatible
mmc: sdhci-msm: Add compatible string check for sm8150
dt-bindings: mmc: sdhci-msm: Add compatible string for sm8150
mmc: sdhci-msm: Add SoC specific compatibles
dt-bindings: mmc: sdhci-msm: Convert bindings to yaml
dt-bindings: mmc: brcm,sdhci-brcmstb: cleanup example
dt-bindings: mmc: brcm,sdhci-brcmstb: correct number of reg entries
mmc: sdhci-brcmstb: Enable Clock Gating to save power
mmc: sdhci-brcmstb: Re-organize flags
mmc: mmci: Remove custom ios handler
mmc: atmel-mci: Simplify if(chan) and if(!chan)
mmc: core: use kobj_to_dev()
dt-bindings: mmc: sdhci-of-dwcmhsc: Add rk3588
mmc: core: Add CIDs for cards to the entropy pool
mmc: core: Allows to override the timeout value for ioctl() path
mmc: sdhci-omap: Use of_device_get_match_data() helper
...
Linus Torvalds [Tue, 24 May 2022 21:50:54 +0000 (14:50 -0700)]
Merge tag 'for-linus-4.19-1' of https://github.com/cminyard/linux-ipmi
Pull IPMI update from Corey Minyard:
"Add limits on the number of users and messages, plus sysfs interfaces
to control those limits.
Other than that, little cleanups, use dev_xxx() insted of pr_xxx(),
create initializers for structures, fix a refcount leak, etc"
* tag 'for-linus-4.19-1' of https://github.com/cminyard/linux-ipmi:
ipmi:ipmb: Fix refcount leak in ipmi_ipmb_probe
ipmi: remove unnecessary type castings
ipmi: Make two logs unique
ipmi:si: Convert pr_debug() to dev_dbg()
ipmi: Convert pr_debug() to dev_dbg()
ipmi: Fix pr_fmt to avoid compilation issues
ipmi: Add an intializer for ipmi_recv_msg struct
ipmi: Add an intializer for ipmi_smi_msg struct
ipmi:ssif: Check for NULL msg when handling events and messages
ipmi: use simple i2c probe function
ipmi: Add a sysfs count of total outstanding messages for an interface
ipmi: Add a sysfs interface to view the number of users
ipmi: Limit the number of message a user may have outstanding
ipmi: Add a limit on the number of users that may use IPMI
Linus Torvalds [Tue, 24 May 2022 21:31:29 +0000 (14:31 -0700)]
Merge tag 'mtd/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"MTD core changes:
- Call of_platform_populate() for MTD partitions
- Check devicetree alias for index
- mtdoops:
- Add a timestamp to the mtdoops header.
- Create a header structure for the saved mtdoops.
- Fix the size of the header read buffer.
- mtdblock: Warn if opened on NAND
- Bindings:
- reserved-memory: Support MTD/block device
- jedec,spi-nor: remove unneeded properties
- Extend fixed-partitions binding
- Add Sercomm (Suzhou) Corporation vendor prefix
MTD driver changes:
- st_spi_fsm: add missing clk_disable_unprepare() in stfsm_remove()
- phram:
- Allow cached mappings
- Allow probing via reserved-memory
- maps: ixp4xx: Drop driver
- bcm47xxpart: Print correct offset on read error
CFI driver changes:
- Rename chip_ready variables
- Add S29GL064N ID definition
- Use chip_ready() for write on S29GL064N
- Move and rename chip_check/chip_ready/chip_good_for_write
NAND core changes:
- Print offset instead of page number for bad blocks
Raw NAND controller drivers:
- Cadence: Fix possible null-ptr-deref in cadence_nand_dt_probe()
- CS553X: simplify the return expression of cs553x_write_ctrl_byte()
- Davinci: Remove redundant unsigned comparison to zero
- Denali: Use managed device resources
- GPMI:
- Add large oob bch setting support
- Rename the variable ecc_chunk_size
- Uninline the gpmi_check_ecc function
- Add strict ecc strength check
- Refactor BCH geometry settings function
- Intel: Fix possible null-ptr-deref in ebu_nand_probe()
- MPC5121: Check before clk_disable_unprepare() not needed
- Mtk:
- MTD_NAND_ECC_MEDIATEK should depend on ARCH_MEDIATEK
- Also parse the default nand-ecc-engine property if available
- Make mtk_ecc.c a separated module
- OMAP ELM:
- Convert the bindings to yaml
- Describe the bindings for AM64 ELM
- Add support for its compatible
- Renesas: Use runtime PM instead of the raw clock API and update the
bindings accordingly
- Rockchip: Check before clk_disable_unprepare() not needed
- TMIO: Check return value after calling platform_get_resource()
Raw NAND chip driver:
- Kioxia: Add support for TH58NVG3S0HBAI4 and TC58NVG0S3HTA00
SPI-NAND chip drivers:
- Gigadevice:
- Add support for:
- GD5FxGM7xExxG
- GD5F{2,4}GQ5xExxG
- GD5F1GQ5RExxG
- GD5FxGQ4xExxG
- Fix Quad IO for GD5F1GQ5UExxG
- XTX: Add support for XT26G0xA
SPI NOR core changes:
- Read back written SR value to make sure the write was done
correctly.
- Introduce a common function for Read ID that manufacturer drivers
can use to verify the Octal DTR switch worked correctly.
- Add helpers for read/write any register commands so manufacturer
drivers don't open code it every time.
- Clarify rdsr dummy cycles documentation.
- Add debugfs entry to expose internal flash parameters and state.
SPI NOR manufacturer drivers changes:
- Add support for Winbond W25Q512NW-IM, and Eon EN25QH256A.
- Move spi_nor_write_ear() to Winbond module since only Winbond
flashes use it.
- Rework Micron and Cypress Octal DTR enable methods to improve
readability.
- Use the common Read ID function to verify switch to Octal DTR mode
for Micron and Cypress flashes.
- Skip polling status on volatile register writes for Micron and
Cypress flashes since the operation is instant"
* tag 'mtd/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (68 commits)
mtd: st_spi_fsm: add missing clk_disable_unprepare() in stfsm_remove()
dt-bindings: mtd: partitions: Extend fixed-partitions binding
dt-bindings: Add Sercomm (Suzhou) Corporation vendor prefix
mtd: phram: Allow cached mappings
mtd: call of_platform_populate() for MTD partitions
mtd: rawnand: renesas: Use runtime PM instead of the raw clock API
dt-bindings: mtd: renesas: Fix the NAND controller description
mtd: rawnand: mpc5121: Check before clk_disable_unprepare() not needed
mtd: rawnand: rockchip: Check before clk_disable_unprepare() not needed
mtd: nand: MTD_NAND_ECC_MEDIATEK should depend on ARCH_MEDIATEK
mtd: rawnand: cs553x: simplify the return expression of cs553x_write_ctrl_byte()
mtd: rawnand: kioxia: Add support for TH58NVG3S0HBAI4
mtd: spi-nor: debugfs: fix format specifier
mtd: spi-nor: support eon en25qh256a variant
mtd: spi-nor: winbond: add support for W25Q512NW-IM
mtd: spi-nor: expose internal parameters via debugfs
mtd: spi-nor: export spi_nor_hwcaps_pp2cmd()
mtd: spi-nor: move spi_nor_write_ear() to winbond module
mtd: spi-nor: amend the rdsr dummy cycles documentation
mtd: cfi_cmdset_0002: Rename chip_ready variables
...
Linus Torvalds [Tue, 24 May 2022 21:23:10 +0000 (14:23 -0700)]
Merge tag 'hwmon-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers:
- Driver for the Microchip LAN966x SoC
- PMBus driver for Infineon Digital Multi-phase xdp152 family
controllers
Chip support added to existing drivers:
- asus-ec-sensors:
- Support for ROG STRIX X570-E GAMING WIFI II, PRIME X470-PRO, and
ProArt X570 Creator WIFI
- External temperature sensor support for ASUS WS X570-ACE
- nct6775:
- Support for I2C driver
- Support for ASUS PRO H410T / PRIME H410M-R /
ROG X570-E GAMING WIFI II
- lm75:
- Support for - Atmel AT30TS74
- pmbus/max16601:
- Support for MAX16602
- aquacomputer_d5next:
- Support for Aquacomputer Farbwerk
- Support for Aquacomputer Octo
- jc42:
- Support for S-34TS04A
Kernel API changes / clarifications:
- The chip parameter of with_info API is now mandatory
- New hwmon_device_register_for_thermal API call for use by the
thermal subsystem
Improvements:
- PMBus and JC42 drivers now register with thermal subsystem
- PMBus drivers now support get_voltage/set_voltage power operations
- The adt7475 driver now supports pin configuration
- The lm90 driver now supports setting extended range temperatures
configuration with a devicetree property
- The dell-smm driver now registers as cooling device
- The OCC driver delays hwmon registration until requested by
userspace
... and various other minor fixes and improvements"
* tag 'hwmon-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (71 commits)
hwmon: (aquacomputer_d5next) Fix an error handling path in aqc_probe()
hwmon: (sl28cpld) Fix typo in comment
hwmon: (pmbus) Check PEC support before reading other registers
hwmon: (dimmtemp) Fix bitmap handling
hwmon: (lm90) enable extended range according to DTS node
dt-bindings: hwmon: lm90: add ti,extended-range-enable property
dt-bindings: hwmon: lm90: add missing ti,tmp461
hwmon: (ibmaem) Directly use ida_alloc()/free()
hwmon: Directly use ida_alloc()/free()
hwmon: (asus-ec-sensors) fix Formula VIII definition
dt-bindings: trivial-devices: Add xdp152
hwmon: (sl28cpld-hwmon) Use HWMON_CHANNEL_INFO macro
hwmon: (pwm-fan) Use HWMON_CHANNEL_INFO macro
hwmon: (peci/dimmtemp) Use HWMON_CHANNEL_INFO macro
hwmon: (peci/cputemp) Use HWMON_CHANNEL_INFO macro
hwmon: (mr75203) Use HWMON_CHANNEL_INFO macro
hwmon: (ltc2992) Use HWMON_CHANNEL_INFO macro
hwmon: (as370-hwmon) Use HWMON_CHANNEL_INFO macro
hwmon: Make chip parameter for with_info API mandatory
thermal/drivers/thermal_hwmon: Use hwmon_device_register_for_thermal()
...
Linus Torvalds [Tue, 24 May 2022 20:50:39 +0000 (13:50 -0700)]
Merge tag 'integrity-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull IMA updates from Mimi Zohar:
"New is IMA support for including fs-verity file digests and signatures
in the IMA measurement list as well as verifying the fs-verity file
digest based signatures, both based on policy.
In addition, are two bug fixes:
- avoid reading UEFI variables, which cause a page fault, on Apple
Macs with T2 chips.
- remove the original "ima" template Kconfig option to address a boot
command line ordering issue.
The rest is a mixture of code/documentation cleanup"
* tag 'integrity-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
integrity: Fix sparse warnings in keyring_handler
evm: Clean up some variables
evm: Return INTEGRITY_PASS for enum integrity_status value '0'
efi: Do not import certificates from UEFI Secure Boot for T2 Macs
fsverity: update the documentation
ima: support fs-verity file digest based version 3 signatures
ima: permit fsverity's file digests in the IMA measurement list
ima: define a new template field named 'd-ngv2' and templates
fs-verity: define a function to return the integrity protected file digest
ima: use IMA default hash algorithm for integrity violations
ima: fix 'd-ng' comments and documentation
ima: remove the IMA_TEMPLATE Kconfig option
ima: remove redundant initialization of pointer 'file'.
Linus Torvalds [Tue, 24 May 2022 20:16:50 +0000 (13:16 -0700)]
Merge tag 'tpmdd-next-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
- Tightened validation of key hashes for SYSTEM_BLACKLIST_HASH_LIST. An
invalid hash format causes a compilation error. Previously, they got
included to the kernel binary but were silently ignored at run-time.
- Allow root user to append new hashes to the blacklist keyring.
- Trusted keys backed with Cryptographic Acceleration and Assurance
Module (CAAM), which part of some of the new NXP's SoC's. Now there
is total three hardware backends for trusted keys: TPM, ARM TEE and
CAAM.
- A scattered set of fixes and small improvements for the TPM driver.
* tag 'tpmdd-next-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
MAINTAINERS: add KEYS-TRUSTED-CAAM
doc: trusted-encrypted: describe new CAAM trust source
KEYS: trusted: Introduce support for NXP CAAM-based trusted keys
crypto: caam - add in-kernel interface for blob generator
crypto: caam - determine whether CAAM supports blob encap/decap
KEYS: trusted: allow use of kernel RNG for key material
KEYS: trusted: allow use of TEE as backend without TCG_TPM support
tpm: Add field upgrade mode support for Infineon TPM2 modules
tpm: Fix buffer access in tpm2_get_tpm_pt()
char: tpm: cr50_i2c: Suppress duplicated error message in .remove()
tpm: cr50: Add new device/vendor ID 0x504a6666
tpm: Remove read16/read32/write32 calls from tpm_tis_phy_ops
tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()
tpm/tpm_ftpm_tee: Return true/false (not 1/0) from bool functions
certs: Explain the rationale to call panic()
certs: Allow root user to append signed hashes to the blacklist keyring
certs: Check that builtin blacklist hashes are valid
certs: Make blacklist_vet_description() more strict
certs: Factor out the blacklist hash creation
tools/certs: Add print-cert-tbs-hash.sh
Linus Torvalds [Tue, 24 May 2022 20:09:13 +0000 (13:09 -0700)]
Merge tag 'landlock-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock updates from Mickaël Salaün:
- improve the path_rename LSM hook implementations for RENAME_EXCHANGE;
- fix a too-restrictive filesystem control for a rare corner case;
- set the nested sandbox limitation to 16 layers;
- add a new LANDLOCK_ACCESS_FS_REFER access right to properly handle
file reparenting (i.e. full rename and link support);
- add new tests and documentation;
- format code with clang-format to make it easier to maintain and
contribute.
* tag 'landlock-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (30 commits)
landlock: Explain how to support Landlock
landlock: Add design choices documentation for filesystem access rights
landlock: Document good practices about filesystem policies
landlock: Document LANDLOCK_ACCESS_FS_REFER and ABI versioning
samples/landlock: Add support for file reparenting
selftests/landlock: Add 11 new test suites dedicated to file reparenting
landlock: Add support for file reparenting with LANDLOCK_ACCESS_FS_REFER
LSM: Remove double path_rename hook calls for RENAME_EXCHANGE
landlock: Move filesystem helpers and add a new one
landlock: Fix same-layer rule unions
landlock: Create find_rule() from unmask_layers()
landlock: Reduce the maximum number of layers to 16
landlock: Define access_mask_t to enforce a consistent access mask size
selftests/landlock: Test landlock_create_ruleset(2) argument check ordering
landlock: Change landlock_restrict_self(2) check ordering
landlock: Change landlock_add_rule(2) argument check ordering
selftests/landlock: Add tests for O_PATH
selftests/landlock: Fully test file rename with "remove" access
selftests/landlock: Extend access right tests to directories
selftests/landlock: Add tests for unknown access rights
...
Linus Torvalds [Tue, 24 May 2022 20:06:32 +0000 (13:06 -0700)]
Merge tag 'selinux-pr-20220523' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
"We've got twelve patches queued for v5.19, with most being fairly
minor. The highlights are below:
- The checkreqprot and runtime disable knobs have been deprecated for
some time with no active users that we can find. In an effort to
move things along we are adding a pause when the knobs are used to
help make the deprecation more noticeable in case anyone is still
using these hacks in the shadows.
- We've added the anonymous inode class name to the AVC audit records
when anonymous inodes are involved. This should make writing policy
easier when anonymous inodes are involved.
- More constification work. This is fairly straightforward and the
source of most of the diffstat.
- The usual minor cleanups: remove unnecessary assignments, assorted
style/checkpatch fixes, kdoc fixes, macro while-loop
encapsulations, #include tweaks, etc"
* tag 'selinux-pr-20220523' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
security: declare member holding string literal const
selinux: log anon inode class name
selinux: declare data arrays const
selinux: fix indentation level of mls_ops block
selinux: include necessary headers in headers
selinux: avoid extra semicolon
selinux: update parameter documentation
selinux: resolve checkpatch errors
selinux: don't sleep when CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE is true
selinux: checkreqprot is deprecated, add some ssleep() discomfort
selinux: runtime disable is deprecated, add some ssleep() discomfort
selinux: Remove redundant assignments
Linus Torvalds [Tue, 24 May 2022 19:49:48 +0000 (12:49 -0700)]
Merge tag 'execve-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook:
- Fix binfmt_flat GOT handling for riscv (Niklas Cassel)
- Remove unused/broken binfmt_flat shared library and coredump code
(Eric W. Biederman)
* tag 'execve-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
binfmt_flat: Remove shared library support
binfmt_flat: Drop vestiges of coredump support
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
- Gracefully handle failed unshare() in selftests (Yang Guang)
- Spelling fix (Colin Ian King)
* tag 'seccomp-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Fix spelling mistake "Coud" -> "Could"
selftests/seccomp: Add test for wait killable notifier
selftests/seccomp: Refactor get_proc_stat to split out file reading code
seccomp: Add wait_killable semantic to seccomp user notifier
selftests/seccomp: Ensure that notifications come in FIFO order
seccomp: Use FIFO semantics to order notifications
selftests/seccomp: Add SKIP for failed unshare()
selftests/seccomp: Test PTRACE_O_SUSPEND_SECCOMP without CAP_SYS_ADMIN
Eric Biggers [Thu, 19 May 2022 20:44:37 +0000 (13:44 -0700)]
ext4: only allow test_dummy_encryption when supported
Make the test_dummy_encryption mount option require that the encrypt
feature flag be already enabled on the filesystem, rather than
automatically enabling it. Practically, this means that "-O encrypt"
will need to be included in MKFS_OPTIONS when running xfstests with the
test_dummy_encryption mount option. (ext4/053 also needs an update.)
Moreover, as long as the preconditions for test_dummy_encryption are
being tightened anyway, take the opportunity to start rejecting it when
!CONFIG_FS_ENCRYPTION rather than ignoring it.
The motivation for requiring the encrypt feature flag is that:
- Having the filesystem auto-enable feature flags is problematic, as it
bypasses the usual sanity checks. The specific issue which came up
recently is that in kernel versions where ext4 supports casefold but
not encrypt+casefold (v5.1 through v5.10), the kernel will happily add
the encrypt flag to a filesystem that has the casefold flag, making it
unmountable -- but only for subsequent mounts, not the initial one.
This confused the casefold support detection in xfstests, causing
generic/556 to fail rather than be skipped.
- The xfstests-bld test runners (kvm-xfstests et al.) already use the
required mkfs flag, so they will not be affected by this change. Only
users of test_dummy_encryption alone will be affected. But, this
option has always been for testing only, so it should be fine to
require that the few users of this option update their test scripts.
- f2fs already requires it (for its equivalent feature flag).
In the ext4_valid_extent_entries function,
if prev is 0, no error is returned even if lblock<=prev.
This was intended to skip the check on the first extent, but
in the error image above, prev=0+1-1=0 when checking the second extent,
so even though lblock<=prev, the function does not return an error.
As a result, bug_ON occurs in __es_tree_search and the system panics.
To solve this problem, we only need to check that:
1. The lblock of the first extent is not less than 0.
2. The lblock of the next extent is not less than
the next block of the previous extent.
The same applies to extent_idx.
Cc: stable@kernel.org Fixes: d2063d944d80 ("ext4: check for overlapping extents in ext4_valid_extent_entries()") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Baokun Li <libaokun1@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220518120816.1541863-1-libaokun1@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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