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Merge tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"We still have a pending fix for a cancelation issue, but it's still
being investigated. In the meantime:
- Dead mm handling fix (Pavel)
- SQPOLL setup error handling (Pavel)
- Flush timeout sequence fix (Marcelo)
- Missing finish_wait() for one exit case"
* tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block:
io_uring: ensure finish_wait() is always called in __io_uring_task_cancel()
io_uring: flush timeouts that should already have expired
io_uring: do sqo disable on install_fd error
io_uring: fix null-deref in io_disable_sqo_submit
io_uring: don't take files/mm for a dead task
io_uring: drop mm and files after task_work_run
There are a few more fixes than a normal rc4, largely due to the bubble
introduced by the holiday break:
* A fix to return -ENOSYS for syscall number -1, which previously
returned an uninitialized value.
* A fix to time_init() to ensure of_clk_init() has been called, without
which clock drivers may not be initialized.
* A fix to the sifive,uart0 driver to properly display the baud rate. A
fix to initialize MPIE that allows interrupts to be processed during
system calls.
* A fix to avoid erronously begin tracing IRQs when interrupts are
disabled, which at least triggers suprious lockdep failures.
* A workaround for a warning related to calling smp_processor_id() while
preemptible. The warning itself is suprious on currently availiable
systems.
* A fix to properly include the generic time VDSO calls. A fix to our
kasan address mapping. A fix to the HiFive Unleashed device tree,
which allows the Ethernet PHY to be properly initialized by Linux (as
opposed to relying on the bootloader).
* A defconfig update to include SiFive's GPIO driver, which is present
on the HiFive Unleashed and necessary to initialize the PHY.
* A fix to avoid allocating memory while initializing reserved memory.
* A fix to avoid allocating the last 4K of memory, as pointers there
alias with syscall errors.
There are also two cleanups that should have no functional effect but do
fix build warnings:
* A cleanup to drop a duplicated definition of PAGE_KERNEL_EXEC.
* A cleanup to properly declare the asm register SP shim.
* A cleanup to the rv32 memory size Kconfig entry, to reflect the actual
size of memory availiable.
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Merge tag 'riscv-for-linus-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"There are a few more fixes than a normal rc4, largely due to the
bubble introduced by the holiday break:
- return -ENOSYS for syscall number -1, which previously returned an
uninitialized value.
- ensure of_clk_init() has been called in time_init(), without which
clock drivers may not be initialized.
- fix sifive,uart0 driver to properly display the baud rate. A fix to
initialize MPIE that allows interrupts to be processed during
system calls.
- avoid erronously begin tracing IRQs when interrupts are disabled,
which at least triggers suprious lockdep failures.
- workaround for a warning related to calling smp_processor_id()
while preemptible. The warning itself is suprious on currently
availiable systems.
- properly include the generic time VDSO calls. A fix to our kasan
address mapping. A fix to the HiFive Unleashed device tree, which
allows the Ethernet PHY to be properly initialized by Linux (as
opposed to relying on the bootloader).
- defconfig update to include SiFive's GPIO driver, which is present
on the HiFive Unleashed and necessary to initialize the PHY.
- avoid allocating memory while initializing reserved memory.
- avoid allocating the last 4K of memory, as pointers there alias
with syscall errors.
There are also two cleanups that should have no functional effect but
do fix build warnings:
- drop a duplicated definition of PAGE_KERNEL_EXEC.
- properly declare the asm register SP shim.
- cleanup the rv32 memory size Kconfig entry, to reflect the actual
size of memory availiable"
* tag 'riscv-for-linus-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: Fix maximum allowed phsyical memory for RV32
RISC-V: Set current memblock limit
RISC-V: Do not allocate memblock while iterating reserved memblocks
riscv: stacktrace: Move register keyword to beginning of declaration
riscv: defconfig: enable gpio support for HiFive Unleashed
dts: phy: add GPIO number and active state used for phy reset
dts: phy: fix missing mdio device and probe failure of vsc8541-01 device
riscv: Fix KASAN memory mapping.
riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL
riscv: cacheinfo: Fix using smp_processor_id() in preemptible
riscv: Trace irq on only interrupt is enabled
riscv: Drop a duplicated PAGE_KERNEL_EXEC
riscv: Enable interrupts during syscalls with M-Mode
riscv: Fix sifive serial driver
riscv: Fix kernel time_init()
riscv: return -ENOSYS for syscall -1
Turning a pinned page read-only breaks the pinning after COW. Don't do it.
The whole "track page soft dirty" state doesn't work with pinned pages
anyway, since the page might be dirtied by the pinning entity without
ever being noticed in the page tables.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Turning page table entries read-only requires the mmap_sem held for
writing.
So stop doing the odd games with turning things from read locks to write
locks and back. Just get the write lock.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux kernel can only map 1GB of address space for RV32 as the page offset
is set to 0xC0000000. The current description in the Kconfig is confusing
as it indicates that RV32 can support 2GB of physical memory. That is
simply not true for current kernel. In future, a 2GB split support can be
added to allow 2GB physical address space.
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Currently, linux kernel can not use last 4k bytes of addressable space
because IS_ERR_VALUE macro treats those as an error. This will be an issue
for RV32 as any memblock allocator potentially allocate chunk of memory
from the end of DRAM (2GB) leading bad address error even though the
address was technically valid.
Fix this issue by limiting the memblock if available memory spans the
entire address space.
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
- Select missing Kconfig dependencies for DM integrity and zoned
targets.
- 4 fixes for DM crypt target's support to optionally bypass
kcryptd workqueues.
- Fix DM snapshot merge supports missing data flushes before
committing metadata.
- Fix DM integrity data device flushing when external metadata is
used.
- Fix DM integrity's maximum number of supported constructor arguments
that user can request when creating an integrity device.
- Eliminate DM core ioctl logging noise when an ioctl is issued
without required CAP_SYS_RAWIO permission.
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Merge tag 'for-5.11/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM-raid's raid1 discard limits so discards work.
- Select missing Kconfig dependencies for DM integrity and zoned
targets.
- Four fixes for DM crypt target's support to optionally bypass kcryptd
workqueues.
- Fix DM snapshot merge supports missing data flushes before committing
metadata.
- Fix DM integrity data device flushing when external metadata is used.
- Fix DM integrity's maximum number of supported constructor arguments
that user can request when creating an integrity device.
- Eliminate DM core ioctl logging noise when an ioctl is issued without
required CAP_SYS_RAWIO permission.
* tag 'for-5.11/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm crypt: defer decryption to a tasklet if interrupts disabled
dm integrity: fix the maximum number of arguments
dm crypt: do not call bio_endio() from the dm-crypt tasklet
dm integrity: fix flush with external metadata device
dm: eliminate potential source of excessive kernel log noise
dm snapshot: flush merged data before committing metadata
dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq
dm crypt: do not wait for backlogged crypto request completion in softirq
dm zoned: select CONFIG_CRC32
dm integrity: select CRYPTO_SKCIPHER
dm raid: fix discard limits for raid1
Merge misc fixes from Andrew Morton:
"10 patches.
Subsystems affected by this patch series: MAINTAINERS and mm (slub,
pagealloc, memcg, kasan, vmalloc, migration, hugetlb, memory-failure,
and process_vm_access)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/process_vm_access.c: include compat.h
mm,hwpoison: fix printing of page flags
MAINTAINERS: add Vlastimil as slab allocators maintainer
mm/hugetlb: fix potential missing huge page size info
mm: migrate: initialize err in do_migrate_pages
mm/vmalloc.c: fix potential memory leak
arm/kasan: fix the array size of kasan_early_shadow_pte[]
mm/memcontrol: fix warning in mem_cgroup_page_lruvec()
mm/page_alloc: add a missing mm_page_alloc_zone_locked() tracepoint
mm, slub: consider rest of partial list if acquire_slab() fails
Several bug fixes.
- Fix a ucma memory leak introduced in v5.9 while fixing the Syzkaller
bugs
- Don't fail when the xarray wraps for user verbs objects
- User triggerable oops regression from the umem page size rework
- Error unwind bugs in usnic, ocrdma, mlx5 and cma
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A fairly modest set of bug fixes, nothing abnormal from the merge
window
The ucma patch is a bit on the larger side, but given the regression
was recently added I've opted to forward it to the rc stream.
- Fix a ucma memory leak introduced in v5.9 while fixing the
Syzkaller bugs
- Don't fail when the xarray wraps for user verbs objects
- User triggerable oops regression from the umem page size rework
- Error unwind bugs in usnic, ocrdma, mlx5 and cma"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/cma: Fix error flow in default_roce_mode_store
RDMA/mlx5: Fix wrong free of blue flame register on error
IB/mlx5: Fix error unwinding when set_has_smi_cap fails
RDMA/umem: Avoid undefined behavior of rounddown_pow_of_two()
RDMA/ocrdma: Fix use after free in ocrdma_dealloc_ucontext_pd()
RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
RDMA/restrack: Don't treat as an error allocation ID wrapping
RDMA/ucma: Do not miss ctx destruction steps in some cases
If we enter with requests pending and performm cancelations, we'll have
a different inflight count before and after calling prepare_to_wait().
This causes the loop to restart. If we actually ended up canceling
everything, or everything completed in-between, then we'll break out
of the loop without calling finish_wait() on the waitqueue. This can
trigger a warning on exit_signals(), as we leave the task state in
TASK_UNINTERRUPTIBLE.
Put a finish_wait() after the loop to catch that case.
Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* For the new fast_commit feature
* Fix some error handling codepaths in whiteout handling and
mountpoint sampling
* Fix how we write ext4_error information so it goes through the journal
when journalling is active, to avoid races that can lead to lost
error information, superblock checksum failures, or DIF/DIX features.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A number of bug fixes for ext4:
- Fix for the new fast_commit feature
- Fix some error handling codepaths in whiteout handling and
mountpoint sampling
- Fix how we write ext4_error information so it goes through the
journal when journalling is active, to avoid races that can lead to
lost error information, superblock checksum failures, or DIF/DIX
features"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: remove expensive flush on fast commit
ext4: fix bug for rename with RENAME_WHITEOUT
ext4: fix wrong list_splice in ext4_fc_cleanup
ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
ext4: don't leak old mountpoint samples
ext4: drop ext4_handle_dirty_super()
ext4: fix superblock checksum failure when setting password salt
ext4: use sbi instead of EXT4_SB(sb) in ext4_update_super()
ext4: save error info to sb through journal if available
ext4: protect superblock modifications with a buffer lock
ext4: drop sync argument of ext4_commit_super()
ext4: combine ext4_handle_error() and save_error_info()
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Merge tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Two small cifs fixes for stable (including an important handle leak
fix) and three small cleanup patches"
* tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: style: replace one-element array with flexible-array
cifs: connect: style: Simplify bool comparison
fs: cifs: remove unneeded variable in smb3_fs_context_dup
cifs: fix interrupted close commands
cifs: check pointer before freeing
- Set the minimum GCC version to 5.1 for arm64 due to earlier compiler
bugs.
- Make atomic helpers __always_inline to avoid a section mismatch when
compiling with clang.
- Fix the CMA and crashkernel reservations to use ZONE_DMA (remove the
arm64_dma32_phys_limit variable, no longer needed with a dynamic
ZONE_DMA sizing in 5.11).
- Remove redundant IRQ flag tracing that was leaving lockdep
inconsistent with the hardware state.
- Revert perf events based hard lockup detector that was causing
smp_processor_id() to be called in preemptible context.
- Some trivial cleanups - spelling fix, renaming S_FRAME_SIZE to
PT_REGS_SIZE, function prototypes added.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Set the minimum GCC version to 5.1 for arm64 due to earlier compiler
bugs.
- Make atomic helpers __always_inline to avoid a section mismatch when
compiling with clang.
- Fix the CMA and crashkernel reservations to use ZONE_DMA (remove the
arm64_dma32_phys_limit variable, no longer needed with a dynamic
ZONE_DMA sizing in 5.11).
- Remove redundant IRQ flag tracing that was leaving lockdep
inconsistent with the hardware state.
- Revert perf events based hard lockup detector that was causing
smp_processor_id() to be called in preemptible context.
- Some trivial cleanups - spelling fix, renaming S_FRAME_SIZE to
PT_REGS_SIZE, function prototypes added.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: selftests: Fix spelling of 'Mismatch'
arm64: syscall: include prototype for EL0 SVC functions
compiler.h: Raise minimum version of GCC to 5.1 for arm64
arm64: make atomic helpers __always_inline
arm64: rename S_FRAME_SIZE to PT_REGS_SIZE
Revert "arm64: Enable perf events based hard lockup detector"
arm64: entry: remove redundant IRQ flag tracing
arm64: Remove arm64_dma32_phys_limit and its uses
In the fast commit, it adds REQ_FUA and REQ_PREFLUSH on each fast
commit block when barrier is enabled. However, in recovery phase,
ext4 compares CRC value in the tail. So it is sufficient to add
REQ_FUA and REQ_PREFLUSH on the block that has tail.
Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20210106013242epcms2p5b6b4ed8ca86f29456fdf56aa580e74b4@epcms2p5
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
We got a "deleted inode referenced" warning cross our fsstress test. The
bug can be reproduced easily with following steps:
cd /dev/shm
mkdir test/
fallocate -l 128M img
mkfs.ext4 -b 1024 img
mount img test/
dd if=/dev/zero of=test/foo bs=1M count=128
mkdir test/dir/ && cd test/dir/
for ((i=0;i<1000;i++)); do touch file$i; done # consume all block
cd ~ && renameat2(AT_FDCWD, /dev/shm/test/dir/file1, AT_FDCWD,
/dev/shm/test/dir/dst_file, RENAME_WHITEOUT) # ext4_add_entry in
ext4_rename will return ENOSPC!!
cd /dev/shm/ && umount test/ && mount img test/ && ls -li test/dir/file1
We will get the output:
"ls: cannot access 'test/dir/file1': Structure needs cleaning"
and the dmesg show:
"EXT4-fs error (device loop0): ext4_lookup:1626: inode #2049: comm ls:
deleted inode referenced: 139"
ext4_rename will create a special inode for whiteout and use this 'ino'
to replace the source file's dir entry 'ino'. Once error happens
latter(the error above was the ENOSPC return from ext4_add_entry in
ext4_rename since all space has been consumed), the cleanup do drop the
nlink for whiteout, but forget to restore 'ino' with source file. This
will trigger the bug describle as above.
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
Fixes: cd808deced ("ext4: support RENAME_WHITEOUT")
Link: https://lore.kernel.org/r/20210105062857.3566-1-yangerkun@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
After full/fast commit, entries in staging queue are promoted to main
queue. In ext4_fs_cleanup function, it splice to staging queue to
staging queue.
Fixes: aa75f4d3da ("ext4: main fast-commit commit path")
Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201230094851epcms2p6eeead8cc984379b37b2efd21af90fd1a@epcms2p6
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
1: ext4_iget/ext4_find_extent never returns NULL, use IS_ERR
instead of IS_ERR_OR_NULL to fix this.
2: ext4_fc_replay_inode should set the inode to NULL when IS_ERR.
and go to call iput properly.
Fixes: 8016e29f43 ("ext4: fast commit recovery path")
Signed-off-by: Yi Li <yili@winhong.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20201230033827.3996064-1-yili@winhong.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
- Harden the ACPI device enumeration code against device ID length
overflows to address a Linux VM cash on Hyper-V (Dexuan Cui).
- Fix a mistake in the documentation of error type values for PCIe
errors (Qiuxu Zhuo).
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Merge tag 'acpi-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These address a device ID bounds check error in the device enumeration
code and fix a mistake in the documentation.
Specifics:
- Harden the ACPI device enumeration code against device ID length
overflows to address a Linux VM cash on Hyper-V (Dexuan Cui).
- Fix a mistake in the documentation of error type values for PCIe
errors (Qiuxu Zhuo)"
* tag 'acpi-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation: ACPI: EINJ: Fix error type values for PCIe errors
ACPI: scan: Harden acpi_device_add() against device ID overflows
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Merge tag 'for-linus-5.11-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- A series to fix a regression when running as a fully virtualized
guest on an old Xen hypervisor not supporting PV interrupt callbacks
for HVM guests.
- A patch to add support to query Xen resource sizes (setting was
possible already) from user mode.
* tag 'for-linus-5.11-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: Fix xen_hvm_smp_init() when vector callback not available
x86/xen: Don't register Xen IPIs when they aren't going to be used
x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery
xen: Set platform PCI device INTX affinity to CPU0
xen: Fix event channel callback via INTX/GSI
xen/privcmd: allow fetching resource sizes
- Fix address alignment handling for VT-D TLB invalidation
- Enable workarounds for buggy Qualcomm firmware on two more SoCs
- Drop duplicate #include
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Merge tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull iommu fixes from Will Deacon:
"Three IOMMU fixes for -rc4.
The main one is a change to the Intel IOMMU driver to fix the handling
of unaligned addresses when invalidating the TLB.
The fix itself is a bit ugly (the caller does a bunch of shifting
which is then effectively undone later in the callchain), but Lu has
patches to clean all of this up in 5.12.
Summary:
- Fix address alignment handling for VT-D TLB invalidation
- Enable workarounds for buggy Qualcomm firmware on two more SoCs
- Drop duplicate #include"
* tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
iommu/vt-d: Fix duplicate included linux/dma-map-ops.h
iommu: arm-smmu-qcom: Add sdm630/msm8998 compatibles for qcom quirks
iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()
This is a pull request to add display support for new Ampere hardware.
It has no effect on older GPUs.
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Merge tag 'topic/nouveau-ampere-modeset-2021-01-15' of git://anongit.freedesktop.org/drm/drm
Pull drm nouveau ampere display support from Dave Airlie:
"Ben has requested if we can include Ampere modesetting support under
fixes, it's for new GPUs and shouldn't affect existing hardware.
It's a bit bigger than just adding a PCI ID, but It has no effect on
older GPUs"
* tag 'topic/nouveau-ampere-modeset-2021-01-15' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/disp/ga10[24]: initial support
drm/nouveau/dmaobj/ga10[24]: initial support
drm/nouveau/i2c/ga10[024]: initial support
drm/nouveau/gpio/ga10[024]: initial support
drm/nouveau/bar/ga10[024]: initial support
drm/nouveau/mmu/ga10[024]: initial support
drm/nouveau/timer/ga10[024]: initial support
drm/nouveau/fb/ga10[024]: initial support
drm/nouveau/imem/ga10[024]: initial support
drm/nouveau/privring/ga10[024]: initial support
drm/nouveau/mc/ga10[024]: initial support
drm/nouveau/devinit/ga10[024]: initial support
drm/nouveau/bios/ga10[024]: initial support
drm/nouveau/pci/ga10[024]: initial support
drm/nouveau/core: recognise GA10[024]
Right now io_flush_timeouts() checks if the current number of events
is equal to ->timeout.target_seq, but this will miss some timeouts if
there have been more than 1 event added since the last time they were
flushed (possible in io_submit_flush_completions(), for example). Fix
it by recording the last sequence at which timeouts were flushed so
that the number of events seen can be compared to the number of events
needed without overflow.
Signed-off-by: Marcelo Diop-Gonzalez <marcelo827@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The kbuild test robot reports that when building with W=1, GCC will warn
for a couple of missing prototypes in syscall.c:
| arch/arm64/kernel/syscall.c:157:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
| 157 | void do_el0_svc(struct pt_regs *regs)
| | ^~~~~~~~~~
| arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
| 164 | void do_el0_svc_compat(struct pt_regs *regs)
| | ^~~~~~~~~~~~~~~~~
While this isn't a functional problem, as a general policy we should
include the prototype for functions wherever possible to catch any
accidental divergence between the prototype and implementation. Here we
can easily include <asm/exception.h>, so let's do so.
While there are a number of warnings elsewhere and some warnings enabled
under W=1 are of questionable benefit, this change helps to make the
code more robust as it evolved and reduces the noise somewhat, so it
seems worthwhile.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/202101141046.n8iPO3mw-lkp@intel.com
Link: https://lore.kernel.org/r/20210114124812.17754-1-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
GCC versions >= 4.9 and < 5.1 have been shown to emit memory references
beyond the stack pointer, resulting in memory corruption if an interrupt
is taken after the stack pointer has been adjusted but before the
reference has been executed. This leads to subtle, infrequent data
corruption such as the EXT4 problems reported by Russell King at the
link below.
Life is too short for buggy compilers, so raise the minimum GCC version
required by arm64 to 5.1.
Reported-by: Russell King <linux@armlinux.org.uk>
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20210105154726.GD1551@shell.armlinux.org.uk
Link: https://lore.kernel.org/r/20210112224832.10980-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
dma-buf:
- Fix a memory leak in CMAV heap
core:
- Fix format check for legacy pageflips
ttm:
- Pass correct address to dma_mapping_error()
- Use mutex in pool shrinker
i915:
- Allow the sysadmin to override security mitigations
- Restore clear-residual mitigations for ivb/byt
- Limit VFE threads based on GT
- GVT: fix vfio edid and full display detection
- Fix DSI DSC power refcounting
- Fix LPT CPU mode backlight takeover
- Disable RPM wakeref assertions during driver shutdown
- Fix DSI sequence sleeps
amdgpu:
- Update repo location in MAINTAINERS
- Add some new renoir PCI IDs
- Revert CRC UAPI changes
- Revert OLED display fix which cases clocking problems for some systems
- Misc vangogh fixes
- GFX fix for sienna cichlid
- DCN1.0 fix for pipe split
- Fix incorrect PSP command
amdkfd:
- Fix possible out of bounds read in vcrat creation
nouveau:
- irq handling fix
- expansion ROM fix
- hw init dpcd disable
- aux semaphore owner field fix
- vram heap sizing fix
- notifier at 0 is valid fix
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Merge tag 'drm-fixes-2021-01-15' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Regular fixes for rc4, a bunch of fixes across i915, amdgpu and
nouveau here, along with a couple of TTM fixes, and dma-buf and one
core pageflip/modifier interaction fix.
One notable i915 fix is a HSW GT1 regression fix that has been
outstanding for quite a while. (Thanks to Matt Turner for kicking
Intel into getting it fixed).
dma-buf:
- Fix a memory leak in CMAV heap
core:
- Fix format check for legacy pageflips
ttm:
- Pass correct address to dma_mapping_error()
- Use mutex in pool shrinker
i915:
- Allow the sysadmin to override security mitigations
- Restore clear-residual mitigations for ivb/byt
- Limit VFE threads based on GT
- GVT: fix vfio edid and full display detection
- Fix DSI DSC power refcounting
- Fix LPT CPU mode backlight takeover
- Disable RPM wakeref assertions during driver shutdown
- Fix DSI sequence sleeps
amdgpu:
- Update repo location in MAINTAINERS
- Add some new renoir PCI IDs
- Revert CRC UAPI changes
- Revert OLED display fix which cases clocking problems for some systems
- Misc vangogh fixes
- GFX fix for sienna cichlid
- DCN1.0 fix for pipe split
- Fix incorrect PSP command
amdkfd:
- Fix possible out of bounds read in vcrat creation
nouveau:
- irq handling fix
- expansion ROM fix
- hw init dpcd disable
- aux semaphore owner field fix
- vram heap sizing fix
- notifier at 0 is valid fix"
* tag 'drm-fixes-2021-01-15' of git://anongit.freedesktop.org/drm/drm: (37 commits)
drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0
drm/nouveau/mmu: fix vram heap sizing
drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
drm/nouveau/i2c/gk110-: disable hw-initiated dpcd reads
drm/nouveau/i2c/gk110: split out from i2c/gk104
drm/nouveau/privring: ack interrupts the same way as RM
drm/nouveau/bios: fix issue shadowing expansion ROMs
drm/amd/display: Fix to be able to stop crc calculation
Revert "drm/amd/display: Expose new CRC window property"
Revert "drm/amdgpu/disply: fix documentation warnings in display manager"
Revert "drm/amd/display: Fix unused variable warning"
drm/amdgpu: set power brake sequence
drm/amdgpu: add new device id for Renior
drm/amdgpu: add green_sardine device id (v2)
drm/amdgpu: fix vram type and bandwidth error for DDR5 and DDR4
drm/amdgpu/gfx10: add updated GOLDEN_TSC_COUNT_UPPER/LOWER register offsets for VGH
drm/amdkfd: Fix out-of-bounds read in kdf_create_vcrat_image_cpu()
Revert "drm/amd/display: Fixed Intermittent blue screen on OLED panel"
drm/amd/display: disable dcn10 pipe split by default
drm/amd/display: Add a missing DCN3.01 API mapping
...
The tracing_on option is supported by bootconfig entries, but the scripts to
convert from ftrace to a bootconfig and back were not updated.
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Merge tag 'trace-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull bootconfig fix from Steven Rostedt:
"Update bootconf scripts for tracing_on option
The tracing_on option is supported by bootconfig entries, but the
scripts to convert from ftrace to a bootconfig and back were not
updated"
* tag 'trace-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tools/bootconfig: Add tracing_on support to helper scripts
As requested, here's a tree with the non-Ampere-specific fixes split
out, as most of them are potentially relevant to already-supported
GPUs.
- irq handling fix
- expansion ROM fix
- hw init dpcd disable
- aux semaphore owner field fix
- vram heap sizing fix
- notifier at 0 is valid fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv4P90mcF_ByAh+ghz+ZVD2N2bPbD7xHYYArE1kYrvsGcQ@mail.gmail.com
Using global sp_in_global directly to fix the following warning,
arch/riscv/kernel/stacktrace.c:31:3: warning: ‘register’ is not at beginning of declaration [-Wold-style-declaration]
31 | const register unsigned long current_sp = sp_in_global;
| ^~~~~
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
amd-drm-fixes-5.11-2021-01-14:
amdgpu:
- Update repo location in MAINTAINERS
- Add some new renoir PCI IDs
- Revert CRC UAPI changes
- Revert OLED display fix which cases clocking problems for some systems
- Misc vangogh fixes
- GFX fix for sienna cichlid
- DCN1.0 fix for pipe split
- Fix incorrect PSP command
amdkfd:
- Fix possible out of bounds read in vcrat creation
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114201354.3998-1-alexander.deucher@amd.com
UEFI/RM no longer use IED scripts from the VBIOS, though they appear to
have been updated for use by the x86 VBIOS code, so we should be able to
continue using them for the moment.
Unfortunately, we require some hacks to do so, as the BeforeLinkTraining
IED script became a pointer to an array of scripts instead, without a
revbump of the relevant tables.
There's also some changes to SOR clock divider fiddling, which are
hopefully correct enough that things work as they should.
AFAIK, GA100 shouldn't have display, so it hasn't been added.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Fortunately, all the interrupts we need to bring up basic display support
are contained in a single leaf register, allowing this basic (but hackish)
implementation.
There's a bunch more invasive patches to come implementing all this in a
better/more complete way, but trying to get a minimal series out first.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
VPLL regs changed a bit. There's more stuff to do around these, but it's
less invasive to stick those changes into disp for now.
None of that belongs here anymore anyhow - fix that someday.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Forcing PRAMIN-shadowing off for GA100, as it requires display, and we don't
know if/where the fuse register for detecting its presence is.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
