stat was returning default owner and group (unlike readdir)
for SMB3.1.1 POSIX extensions
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Will carry the variable-sized reply from SMB_FIND_FILE_POSIX_INFO
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
This reverts commit f35b5d7d67.
It has been reported to cause huge performance regressions on some loads
(will-it-scale.per_process_ops, but also building the kernel with
clang).
The commit did speed up gcc builds by a small amount, so it's not an
unambiguous regression, but until the big regressions are understood,
let's revert it.
Reported-by: kernel test robot <yujie.liu@intel.com>
Link: https://lore.kernel.org/r/202210181535.7144dd15-yujie.liu@intel.com
Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/lkml/Y1DNQaoPWxE%2BrGce@dev-arch.thelio-3990X/
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently tpm transactions are executed unconditionally in
tpm_pm_suspend() function, which may lead to races with other tpm
accessors in the system.
Specifically, the hw_random tpm driver makes use of tpm_get_random(),
and this function is called in a loop from a kthread, which means it's
not frozen alongside userspace, and so can race with the work done
during system suspend:
tpm tpm0: tpm_transmit: tpm_recv: error -52
tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics
CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014
Call Trace:
tpm_tis_status.cold+0x19/0x20
tpm_transmit+0x13b/0x390
tpm_transmit_cmd+0x20/0x80
tpm1_pm_suspend+0xa6/0x110
tpm_pm_suspend+0x53/0x80
__pnp_bus_suspend+0x35/0xe0
__device_suspend+0x10f/0x350
Fix this by calling tpm_try_get_ops(), which itself is a wrapper around
tpm_chip_start(), but takes the appropriate mutex.
Signed-off-by: Jan Dabros <jsd@semihalf.com>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/all/c5ba47ef-393f-1fba-30bd-1230d1b4b592@suse.cz/
Cc: stable@vger.kernel.org
Fixes: e891db1a18 ("tpm: turn on TPM on suspend for TPM 1.x")
[Jason: reworked commit message, added metadata]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
see an already freed event
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Merge tag 'perf_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Borislav Petkov:
- Fix a use-after-free case where the perf pending task callback would
see an already freed event
* tag 'perf_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix perf_pending_task() UaF
whether clock events are received during S3 or not which locks up other
RISC-V platforms. The issue will be fixed differently later.
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Merge tag 'timers_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Borislav Petkov:
- Revert a fix to RISC-V timers supposed to address an uncertainty
whether clock events are received during S3 or not which locks up
other RISC-V platforms. The issue will be fixed differently later.
* tag 'timers_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "clocksource/drivers/riscv: Events are stopped during CPU suspend"
- a fix for Raydium touchscreen driver to stop leaking memory when
sending commands to the chip.
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Merge tag 'input-for-v6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
- a fix for Raydium touchscreen driver to stop leaking memory when
sending commands to the chip
* tag 'input-for-v6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send()
regression fix regarding bus recovery for the cadence driver, a DMA
handling fix for the imx driver, and two error path fixes (npcm7xx and
qcom-geni).
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Merge tag 'i2c-for-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"A power state fix in the core for ACPI devices, a regression fix
regarding bus recovery for the cadence driver, a DMA handling fix for
the imx driver, and two error path fixes (npcm7xx and qcom-geni)"
* tag 'i2c-for-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set
i2c: qcom-geni: fix error return code in geni_i2c_gpi_xfer
i2c: cadence: Fix regression with bus recovery
i2c: Restore initial power state if probe fails
i2c: npcm7xx: Fix error handling in npcm_i2c_init()
- Fix duplicate overlapping device-dax instances for HMAT described
"Soft Reserved" Memory
- Fix missing node targets in the sysfs representation of memory tiers
- Remove a confusing variable initialization
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Merge tag 'dax-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax fixes from Dan Williams:
"A few bug fixes around the handling of "Soft Reserved" memory and
memory tiering information.
Linux is starting to enounter more real world systems that deploy an
ACPI HMAT to describe different performance classes of memory, as well
the "special purpose" (Linux "Soft Reserved") designation from EFI.
These fixes result from that testing.
It has all appeared in -next for a while with no known issues.
- Fix duplicate overlapping device-dax instances for HMAT described
"Soft Reserved" Memory
- Fix missing node targets in the sysfs representation of memory
tiers
- Remove a confusing variable initialization"
* tag 'dax-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
device-dax: Fix duplicate 'hmem' device registration
ACPI: HMAT: Fix initiator registration for single-initiator systems
ACPI: HMAT: remove unnecessary variable initialization
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Merge tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"Just a small NVMe merge for this week, fixing protection of the name
space list, and a missing clear of a reserved field when unused"
* tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux:
nvme: fix SRCU protection of nvme_ns_head list
nvme-pci: clear the prp2 field when not used
- Fix a potential divide by zero in pinctrl-singe (OMAP
and HiSilicon)
- Disable IRQs on startup in the Mediatek driver. This
is a classic, we should be looking out for this more.
- Save and restore pins in "direct IRQ" mode in the Intel
driver, this works around firmware bugs.
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Merge tag 'pinctrl-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Three driver fixes. The Intel fix looks like the most important.
- Fix a potential divide by zero in pinctrl-singe (OMAP and
HiSilicon)
- Disable IRQs on startup in the Mediatek driver. This is a classic,
we should be looking out for this more.
- Save and restore pins in 'direct IRQ' mode in the Intel driver,
this works around firmware bugs"
* tag 'pinctrl-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: intel: Save and restore pins in "direct IRQ" mode
pinctrl: meditatek: Startup with the IRQs disabled
pinctrl: single: Fix potential division by zero
* A build-time fix for the NR_CPUS Kconfig SBI version dependency.
* A pair of fixes to early memory initialization, to fix page
permissions in EFI and post-initmem-free.
* A build-time fix for the VDSO, to avoid trying to profile the VDSO
functions.
* A pair of fixes for kexec crash handling, to fix multi-core and
interrupt related initialization inside the crash kernel.
* A fix to avoid a race condition when handling multiple concurrect
kernel stack overflows.
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Merge tag 'riscv-for-linus-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- build fix for the NR_CPUS Kconfig SBI version dependency
- fixes to early memory initialization, to fix page permissions in EFI
and post-initmem-free
- build fix for the VDSO, to avoid trying to profile the VDSO functions
- fixes for kexec crash handling, to fix multi-core and interrupt
related initialization inside the crash kernel
- fix for a race condition when handling multiple concurrect kernel
stack overflows
* tag 'riscv-for-linus-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: kexec: Fixup crash_smp_send_stop without multi cores
riscv: kexec: Fixup irq controller broken in kexec crash path
riscv: mm: Proper page permissions after initmem free
riscv: vdso: fix section overlapping under some conditions
riscv: fix race when vmap stack overflow
riscv: Sync efi page table's kernel mappings before switching
riscv: Fix NR_CPUS range conditions
- Fix ambiguous TRIM and DISCARD args
- Fix removal of debugfs file for mmc_test
MMC host:
- mtk-sd: Add missing clk_disable_unprepare() in an error path
- sdhci: Fix I/O voltage switch delay for UHS-I SD cards
- sdhci-esdhc-imx: Fix CQHCI exit halt state check
- sdhci-sprd: Fix voltage switch
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Merge tag 'mmc-v6.1-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Fix ambiguous TRIM and DISCARD args
- Fix removal of debugfs file for mmc_test
MMC host:
- mtk-sd: Add missing clk_disable_unprepare() in an error path
- sdhci: Fix I/O voltage switch delay for UHS-I SD cards
- sdhci-esdhc-imx: Fix CQHCI exit halt state check
- sdhci-sprd: Fix voltage switch"
* tag 'mmc-v6.1-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-sprd: Fix no reset data and command after voltage switch
mmc: sdhci: Fix voltage switch delay
mmc: mtk-sd: Fix missing clk_disable_unprepare in msdc_of_clock_parse()
mmc: mmc_test: Fix removal of debugfs file
mmc: sdhci-esdhc-imx: correct CQHCI exit halt state check
mmc: core: Fix ambiguous TRIM and DISCARD arg
The "force" argument to write_spec_ctrl_current() is currently ambiguous
as it does not guarantee the MSR write. This is due to the optimization
that writes to the MSR happen only when the new value differs from the
cached value.
This is fine in most cases, but breaks for S3 resume when the cached MSR
value gets out of sync with the hardware MSR value due to S3 resetting
it.
When x86_spec_ctrl_current is same as x86_spec_ctrl_base, the MSR write
is skipped. Which results in SPEC_CTRL mitigations not getting restored.
Move the MSR write from write_spec_ctrl_current() to a new function that
unconditionally writes to the MSR. Update the callers accordingly and
rename functions.
[ bp: Rework a bit. ]
Fixes: caa0ff24d5 ("x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value")
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/806d39b0bfec2fe8f50dc5446dff20f5bb24a959.1669821572.git.pawan.kumar.gupta@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Likely the last piece for 6.1; the only significant fixes are ASoC
core ops fixes, while others are device-specific (rather minor)
fixes in ASoC and FireWire drivers.
All appear safe enough to take as a late stage material.
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Merge tag 'sound-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Likely the last piece for 6.1; the only significant fixes are ASoC
core ops fixes, while others are device-specific (rather minor) fixes
in ASoC and FireWire drivers.
All appear safe enough to take as a late stage material"
* tag 'sound-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: dice: fix regression for Lexicon I-ONIX FW810S
ASoC: cs42l51: Correct PGA Volume minimum value
ASoC: ops: Correct bounds check for second channel on SX controls
ASoC: tlv320adc3xxx: Fix build error for implicit function declaration
ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx()
ASoC: ops: Fix bounds check for _sx controls
ASoC: fsl_micfil: explicitly clear CHnF flags
ASoC: fsl_micfil: explicitly clear software reset bit
i915:
- Fix dram info readout
- Remove non-existent pipes from bigjoiner pipe mask
- Fix negative value passed as remaining time
- Never return 0 if not all requests retired
amdgpu:
- VCN fix for vangogh
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Merge tag 'drm-fixes-2022-12-02' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Things do seem to have finally settled down, just four i915 and one
amdgpu this week. Probably won't have much for next week if you do
push rc8 out.
i915:
- Fix dram info readout
- Remove non-existent pipes from bigjoiner pipe mask
- Fix negative value passed as remaining time
- Never return 0 if not all requests retired
amdgpu:
- VCN fix for vangogh"
* tag 'drm-fixes-2022-12-02' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: enable Vangogh VCN indirect sram mode
drm/i915: Never return 0 if not all requests retired
drm/i915: Fix negative value passed as remaining time
drm/i915: Remove non-existent pipes from bigjoiner pipe mask
drm/i915/mtl: Fix dram info readout
address post-6.0 issues, which is hopefully a sign that things are
converging.
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Merge tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
"15 hotfixes, 11 marked cc:stable.
Only three or four of the latter address post-6.0 issues, which is
hopefully a sign that things are converging"
* tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
revert "kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible"
Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled
drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame
mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths
mm/khugepaged: fix GUP-fast interaction by sending IPI
mm/khugepaged: take the right locks for page table retraction
mm: migrate: fix THP's mapcount on isolation
mm: introduce arch_has_hw_nonleaf_pmd_young()
mm: add dummy pmd_young() for architectures not having it
mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()
tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep"
nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry()
hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing
madvise: use zap_page_range_single for madvise dontneed
mm: replace VM_WARN_ON to pr_warn if the node is offline with __GFP_THISNODE
The V4L2_MEMORY_USERPTR interface is long deprecated and shouldn't be
used (and is discouraged for any modern v4l drivers). And Seth Jenkins
points out that the fallback to VM_PFNMAP/VM_IO is fundamentally racy
and dangerous.
Note that it's not even a case that should trigger, since any normal
user pointer logic ends up just using the pin_user_pages_fast() call
that does the proper page reference counting. That's not the problem
case, only if you try to use special device mappings do you have any
issues.
Normally I'd just remove this during the merge window, but since Seth
pointed out the problem cases, we really want to know as soon as
possible if there are actually any users of this odd special case of a
legacy interface. Neither Hans nor Mauro seem to think that such
mis-uses of the old legacy interface should exist. As Mauro says:
"See, V4L2 has actually 4 streaming APIs:
- Kernel-allocated mmap (usually referred simply as just mmap);
- USERPTR mmap;
- read();
- dmabuf;
The USERPTR is one of the oldest way to use it, coming from V4L
version 1 times, and by far the least used one"
And Hans chimed in on the USERPTR interface:
"To be honest, I wouldn't mind if it goes away completely, but that's a
bit of a pipe dream right now"
but while removing this legacy interface entirely may be a pipe dream we
can at least try to remove the unlikely (and actively broken) case of
using special device mappings for USERPTR accesses.
This replaces it with a WARN_ONCE() that we can remove once we've
hopefully confirmed that no actual users exist.
NOTE! Longer term, this means that a 'struct frame_vector' only ever
contains proper page pointers, and all the games we have with converting
them to pages can go away (grep for 'frame_vector_to_pages()' and the
uses of 'vec->is_pfns'). But this is just the first step, to verify
that this code really is all dead, and do so as quickly as possible.
Reported-by: Seth Jenkins <sethjenkins@google.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- fix SRCU protection of nvme_ns_head list (Caleb Sander)
- clear the prp2 field when not used (Lei Rao)
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Merge tag 'nvme-6.1-2022-01-02' of git://git.infradead.org/nvme into block-6.1
Pull NVMe fixes from Christoph:
"nvme fixes for Linux 6.1
- fix SRCU protection of nvme_ns_head list (Caleb Sander)
- clear the prp2 field when not used (Lei Rao)"
* tag 'nvme-6.1-2022-01-02' of git://git.infradead.org/nvme:
nvme: fix SRCU protection of nvme_ns_head list
nvme-pci: clear the prp2 field when not used
for_each_pci_dev() is implemented by pci_get_device(). The comment of
pci_get_device() says that it will increase the reference count for the
returned pci_dev and also decrease the reference count for the input
pci_dev @from if it is not NULL.
If we break for_each_pci_dev() loop with pdev not NULL, we need to call
pci_dev_put() to decrease the reference count. Add the missing
pci_dev_put() for the error path to avoid reference count leak.
Fixes: 2e45528930 ("iommu/vt-d: Unify the way to process DMAR device scope array")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221121113649.190393-3-wangxiongfeng2@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
for_each_pci_dev() is implemented by pci_get_device(). The comment of
pci_get_device() says that it will increase the reference count for the
returned pci_dev and also decrease the reference count for the input
pci_dev @from if it is not NULL.
If we break for_each_pci_dev() loop with pdev not NULL, we need to call
pci_dev_put() to decrease the reference count. Add the missing
pci_dev_put() before 'return true' to avoid reference count leak.
Fixes: 89a6079df7 ("iommu/vt-d: Force IOMMU on for platform opt in hint")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221121113649.190393-2-wangxiongfeng2@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
As comment of pci_get_domain_bus_and_slot() says, it returns a pci device
with refcount increment, when finish using it, the caller must decrease
the reference count by calling pci_dev_put(). So call pci_dev_put() after
using the 'pdev' to avoid refcount leak.
Besides, if the 'pdev' is null or intel_svm_prq_report() returns error,
there is no need to trace this fault.
Fixes: 06f4b8d09d ("iommu/vt-d: Remove unnecessary SVA data accesses in page fault path")
Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221119144028.2452731-1-yangyingliang@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
QAT devices on Intel Sapphire Rapids and Emerald Rapids have a defect in
address translation service (ATS). These devices may inadvertently issue
ATS invalidation completion before posted writes initiated with
translated address that utilized translations matching the invalidation
address range, violating the invalidation completion ordering.
This patch adds an extra device TLB invalidation for the affected devices,
it is needed to ensure no more posted writes with translated address
following the invalidation completion. Therefore, the ordering is
preserved and data-corruption is prevented.
Device TLBs are invalidated under the following six conditions:
1. Device driver does DMA API unmap IOVA
2. Device driver unbind a PASID from a process, sva_unbind_device()
3. PASID is torn down, after PASID cache is flushed. e.g. process
exit_mmap() due to crash
4. Under SVA usage, called by mmu_notifier.invalidate_range() where
VM has to free pages that were unmapped
5. userspace driver unmaps a DMA buffer
6. Cache invalidation in vSVA usage (upcoming)
For #1 and #2, device drivers are responsible for stopping DMA traffic
before unmap/unbind. For #3, iommu driver gets mmu_notifier to
invalidate TLB the same way as normal user unmap which will do an extra
invalidation. The dTLB invalidation after PASID cache flush does not
need an extra invalidation.
Therefore, we only need to deal with #4 and #5 in this patch. #1 is also
covered by this patch due to common code path with #5.
Tested-by: Yuzhang Luo <yuzhang.luo@intel.com>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Link: https://lore.kernel.org/r/20221130062449.1360063-1-jacob.jun.pan@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Recent changes to the DMA code has resulting in the IMX driver failing
I2C transfers when the buffer has been vmalloc. Only perform DMA
transfers if the message has the I2C_M_DMA_SAFE flag set, indicating
the client is providing a buffer which is DMA safe.
This is a minimal fix for stable. The I2C core provides helpers to
allocate a bounce buffer. For a fuller fix the master should make use
of these helpers.
Fixes: 4544b9f25e ("dma-mapping: Add vmap checks to dma_map_single()")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fix to return a negative error code from the gi2c->err instead of
0.
Fixes: d8703554f4 ("i2c: qcom-geni: Add support for GPI DMA")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasoluitons.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Commit "i2c: cadence: Add standard bus recovery support" breaks for i2c
devices that have no pinctrl defined. There is no requirement for this
to exist in the DT. This has worked perfectly well without this before in
at least 1 real usage case on hardware (Mali Komeda DPU, Cadence i2c to
talk to a tda99xx phy). Adding the requirement to have pinctrl set up in
the device tree (or otherwise be found) is a regression where the whole
i2c device is lost entirely (in this case dropping entire devices which
then leads to the drm display stack unable to find the phy for display
output, thus having no drm display device and so on down the chain).
This converts the above commit to an enhancement if pinctrl can be found
for the i2c device, providing a timeout on read with recovery, but if not,
do what used to be done rather than a fatal loss of a device.
This restores the mentioned display devices to their working state again.
Fixes: 58b924241d ("i2c: cadence: Add standard bus recovery support")
Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Reviewed-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Acked-by: Michal Simek <michal.simek@amd.com>
[wsa: added braces to else-branch]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
- Fix dram info readout (Radhakrishna Sripada)
- Remove non-existent pipes from bigjoiner pipe mask (Ville Syrjälä)
- Fix negative value passed as remaining time (Janusz Krzysztofik)
- Never return 0 if not all requests retired (Janusz Krzysztofik)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y4hp+a3TJ13t2ZA1@tursulin-desk
The config to be able to inject error codes into any function annotated
with ALLOW_ERROR_INJECTION() is enabled when FUNCTION_ERROR_INJECTION is
enabled. But unfortunately, this is always enabled on x86 when KPROBES
is enabled, and there's no way to turn it off.
As kprobes is useful for observability of the kernel, it is useful to
have it enabled in production environments. But error injection should
be avoided. Add a prompt to the config to allow it to be disabled even
when kprobes is enabled, and get rid of the "def_bool y".
This is a kernel debug feature (it's in Kconfig.debug), and should have
never been something enabled by default.
Cc: stable@vger.kernel.org
Fixes: 540adea380 ("error-injection: Separate error-injection from kprobe")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
So that uses PSP to initialize HW.
Fixes: 0c2c02b66c ("drm/amdgpu/vcn: add firmware support for dimgrey_cavefish")
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This fixes a concrete bug but is also the basis for some cleanup work,
so I'm merging it based on the offending commit in order to minimize
future conflicts.
* commit '7e1864332fbc1b993659eab7974da9fe8bf8c128':
riscv: fix race when vmap stack overflow
- Revert runtime service sync exception recovery on arm64
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Merge tag 'efi-fixes-for-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fix from Ard Biesheuvel:
"A single revert for some code that I added during this cycle. The code
is not wrong, but it should be a bit more careful about how to handle
the shadow call stack pointer, so it is better to revert it for now
and bring it back later in improved form.
Summary:
- Revert runtime service sync exception recovery on arm64"
* tag 'efi-fixes-for-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
arm64: efi: Revert "Recover from synchronous exceptions ..."
As the devm_kcalloc may return NULL, the return value needs to be checked
to avoid NULL poineter dereference.
Fixes: d0ddfd241e ("hwmon: (asus-ec-sensors) add driver for ASUS EC")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221125014329.121560-1-yuancan@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put(). So call it after using to avoid refcount leak.
Fixes: 14513ee696 ("hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessary")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221118093303.214163-1-yangyingliang@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This reverts commit 23715a26c8, which introduced some code in
assembler that manipulates both the ordinary and the shadow call stack
pointer in a way that could potentially be taken advantage of. So let's
revert it, and do a better job the next time around.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This reverts commit 232ccac1bd.
On the subject of suspend, the RISC-V SBI spec states:
This does not cover whether any given events actually reach the hart or
not, just what the hart will do if it receives an event. On PolarFire
SoC, and potentially other SiFive based implementations, events from the
RISC-V timer do reach a hart during suspend. This is not the case for the
implementation on the Allwinner D1 - there timer events are not received
during suspend.
To fix this, the CLOCK_EVT_FEAT_C3STOP (mis)feature was enabled for the
timer driver - but this has broken both RCU stall detection and timers
generally on PolarFire SoC and potentially other SiFive based
implementations.
If an AXI read to the PCIe controller on PolarFire SoC times out, the
system will stall, however, with CLOCK_EVT_FEAT_C3STOP active, the system
just locks up without RCU stalling:
io scheduler mq-deadline registered
io scheduler kyber registered
microchip-pcie 2000000000.pcie: host bridge /soc/pcie@2000000000 ranges:
microchip-pcie 2000000000.pcie: MEM 0x2008000000..0x2087ffffff -> 0x0008000000
microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer
microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer
microchip-pcie 2000000000.pcie: axi read request error
microchip-pcie 2000000000.pcie: axi read timeout
microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer
microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer
microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer
microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer
microchip-pcie 2000000000.pcie: sec error in pcie2axi buffer
microchip-pcie 2000000000.pcie: ded error in pcie2axi buffer
Freeing initrd memory: 7332K
Similarly issues were reported with clock_nanosleep() - with a test app
that sleeps each cpu for 6, 5, 4, 3 ms respectively, HZ=250 & the blamed
commit in place, the sleep times are rounded up to the next jiffy:
== CPU: 1 == == CPU: 2 == == CPU: 3 == == CPU: 4 ==
Mean: 7.974992 Mean: 7.976534 Mean: 7.962591 Mean: 3.952179
Std Dev: 0.154374 Std Dev: 0.156082 Std Dev: 0.171018 Std Dev: 0.076193
Hi: 9.472000 Hi: 10.495000 Hi: 8.864000 Hi: 4.736000
Lo: 6.087000 Lo: 6.380000 Lo: 4.872000 Lo: 3.403000
Samples: 521 Samples: 521 Samples: 521 Samples: 521
Fortunately, the D1 has a second timer, which is "currently used in
preference to the RISC-V/SBI timer driver" so a revert here does not
hurt operation of D1 in its current form.
Ultimately, a DeviceTree property (or node) will be added to encode the
behaviour of the timers, but until then revert the addition of
CLOCK_EVT_FEAT_C3STOP.
Fixes: 232ccac1bd ("clocksource/drivers/riscv: Events are stopped during CPU suspend")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/linux-riscv/YzYTNQRxLr7Q9JR0@spud/
Link: https://github.com/riscv-non-isa/riscv-sbi-doc/issues/98/
Link: https://lore.kernel.org/linux-riscv/bf6d3b1f-f703-4a25-833e-972a44a04114@sholland.org/
Link: https://lore.kernel.org/r/20221122121620.3522431-1-conor.dooley@microchip.com
After switching the voltage, no reset data and command will cause
CMD2 timeout.
Fixes: 29ca763fc2 ("mmc: sdhci-sprd: Add pin control support for voltage switch")
Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221130121328.25553-1-wenchao.chen@unisoc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
these are incorrect clk data, like bad parent descriptions. When the clk
tree is improperly described things don't work, like USB and UFS
controllers, because clk frequencies are wonky. Here are the extra
details:
- Fix the parent of UFS reference clks on Qualcomm SC8280XP so that UFS
works properly.
- Fix the clk ID for USB on AT91 RM9200 so the USB driver continues to
probe.
- Stop using of_device_get_match_data() on the wrong device for a
Samsung Exynos driver so it gets the proper clk data.
- Fix ExynosAutov9 binding.
- Fix the parent of the div4 clk on Exynos7885.
- Stop calling runtime PM APIs from the Qualcomm GDSC driver directly
as it leads to a lockdep splat and is just plain wrong because it
violates runtime PM semantics by calling runtime PM APIs when the
device has been runtime PM disabled.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A set of clk driver fixes that resolve issues for various SoCs.
Most of these are incorrect clk data, like bad parent descriptions.
When the clk tree is improperly described things don't work, like USB
and UFS controllers, because clk frequencies are wonky. Here are the
extra details:
- Fix the parent of UFS reference clks on Qualcomm SC8280XP so that
UFS works properly
- Fix the clk ID for USB on AT91 RM9200 so the USB driver continues
to probe
- Stop using of_device_get_match_data() on the wrong device for a
Samsung Exynos driver so it gets the proper clk data
- Fix ExynosAutov9 binding
- Fix the parent of the div4 clk on Exynos7885
- Stop calling runtime PM APIs from the Qualcomm GDSC driver directly
as it leads to a lockdep splat and is just plain wrong because it
violates runtime PM semantics by calling runtime PM APIs when the
device has been runtime PM disabled"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc-sc8280xp: add cxo as parent for three ufs ref clks
ARM: at91: rm9200: fix usb device clock id
clk: samsung: Revert "clk: samsung: exynos-clkout: Use of_device_get_match_data()"
dt-bindings: clock: exynosautov9: fix reference to CMU_FSYS1
clk: qcom: gdsc: Remove direct runtime PM calls
clk: samsung: exynos7885: Correct "div4" clock parents
It causes build failures with unusual CC/HOSTCC combinations.
Quoting
https://lkml.kernel.org/r/A222B1E6-69B8-4085-AD1B-27BDB72CA971@goldelico.com:
HOSTCC scripts/mod/modpost.o - due to target missing
In file included from include/linux/string.h:5,
from scripts/mod/../../include/linux/license.h:5,
from scripts/mod/modpost.c:24:
include/linux/compiler.h:246:10: fatal error: asm/rwonce.h: No such file or directory
246 | #include <asm/rwonce.h>
| ^~~~~~~~~~~~~~
compilation terminated.
...
The problem is that HOSTCC is not necessarily the same compiler or even
architecture as CC and pulling in <linux/compiler.h> or <asm/rwonce.h>
files indirectly isn't a good idea then.
My toolchain is providing HOSTCC = gcc (MacPorts) and CC = arm-linux-gnueabihf
(built from gcc source) and all running on Darwin.
If I change the include to <string.h> I can then "HOSTCC scripts/mod/modpost.c"
but then it fails for "CC kernel/module/main.c" not finding <string.h>:
CC kernel/module/main.o - due to target missing
In file included from kernel/module/main.c:43:0:
./include/linux/license.h:5:20: fatal error: string.h: No such file or directory
#include <string.h>
^
compilation terminated.
Reported-by: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Sam James <sam@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When enabled, KASAN enlarges function's stack-frames. Pushing quite a few
over the current threshold. This can mainly be seen on 32-bit
architectures where the present limit (when !GCC) is a lowly 1024-Bytes.
Link: https://lkml.kernel.org/r/20221125120750.3537134-3-lee@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Tom Rix <trix@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "Fix a bunch of allmodconfig errors", v2.
Since b339ec9c22 ("kbuild: Only default to -Werror if COMPILE_TEST")
WERROR now defaults to COMPILE_TEST meaning that it's enabled for
allmodconfig builds. This leads to some interesting build failures when
using Clang, each resolved in this set.
With this set applied, I am able to obtain a successful allmodconfig Arm
build.
This patch (of 2):
calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 ||
ARM64) architectures built with Clang (all released versions), whereby the
stack frame gets blown up to well over 5k. This would cause an immediate
kernel panic on most architectures. We'll revert this when the following
bug report has been resolved:
https://github.com/llvm/llvm-project/issues/41896.
Link: https://lkml.kernel.org/r/20221125120750.3537134-1-lee@kernel.org
Link: https://lkml.kernel.org/r/20221125120750.3537134-2-lee@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Lee Jones <lee@kernel.org>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Tom Rix <trix@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Any codepath that zaps page table entries must invoke MMU notifiers to
ensure that secondary MMUs (like KVM) don't keep accessing pages which
aren't mapped anymore. Secondary MMUs don't hold their own references to
pages that are mirrored over, so failing to notify them can lead to page
use-after-free.
I'm marking this as addressing an issue introduced in commit f3f0e1d215
("khugepaged: add support of collapse for tmpfs/shmem pages"), but most of
the security impact of this only came in commit 27e1f82731 ("khugepaged:
enable collapse pmd for pte-mapped THP"), which actually omitted flushes
for the removal of present PTEs, not just for the removal of empty page
tables.
Link: https://lkml.kernel.org/r/20221129154730.2274278-3-jannh@google.com
Link: https://lkml.kernel.org/r/20221128180252.1684965-3-jannh@google.com
Link: https://lkml.kernel.org/r/20221125213714.4115729-3-jannh@google.com
Fixes: f3f0e1d215 ("khugepaged: add support of collapse for tmpfs/shmem pages")
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Since commit 70cbc3cc78 ("mm: gup: fix the fast GUP race against THP
collapse"), the lockless_pages_from_mm() fastpath rechecks the pmd_t to
ensure that the page table was not removed by khugepaged in between.
However, lockless_pages_from_mm() still requires that the page table is
not concurrently freed. Fix it by sending IPIs (if the architecture uses
semi-RCU-style page table freeing) before freeing/reusing page tables.
Link: https://lkml.kernel.org/r/20221129154730.2274278-2-jannh@google.com
Link: https://lkml.kernel.org/r/20221128180252.1684965-2-jannh@google.com
Link: https://lkml.kernel.org/r/20221125213714.4115729-2-jannh@google.com
Fixes: ba76149f47 ("thp: khugepaged")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
