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740797ce3a
933042 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Juri Lelli
|
740797ce3a |
sched/core: Fix PI boosting between RT and DEADLINE tasks
syzbot reported the following warning:
WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504
At deadline.c:628 we have:
623 static inline void setup_new_dl_entity(struct sched_dl_entity *dl_se)
624 {
625 struct dl_rq *dl_rq = dl_rq_of_se(dl_se);
626 struct rq *rq = rq_of_dl_rq(dl_rq);
627
628 WARN_ON(dl_se->dl_boosted);
629 WARN_ON(dl_time_before(rq_clock(rq), dl_se->deadline));
[...]
}
Which means that setup_new_dl_entity() has been called on a task
currently boosted. This shouldn't happen though, as setup_new_dl_entity()
is only called when the 'dynamic' deadline of the new entity
is in the past w.r.t. rq_clock and boosted tasks shouldn't verify this
condition.
Digging through the PI code I noticed that what above might in fact happen
if an RT tasks blocks on an rt_mutex hold by a DEADLINE task. In the
first branch of boosting conditions we check only if a pi_task 'dynamic'
deadline is earlier than mutex holder's and in this case we set mutex
holder to be dl_boosted. However, since RT 'dynamic' deadlines are only
initialized if such tasks get boosted at some point (or if they become
DEADLINE of course), in general RT 'dynamic' deadlines are usually equal
to 0 and this verifies the aforementioned condition.
Fix it by checking that the potential donor task is actually (even if
temporary because in turn boosted) running at DEADLINE priority before
using its 'dynamic' deadline value.
Fixes:
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||
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Juri Lelli
|
ce9bc3b27f |
sched/deadline: Initialize ->dl_boosted
syzbot reported the following warning triggered via SYSC_sched_setattr():
WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 setup_new_dl_entity /kernel/sched/deadline.c:594 [inline]
WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 enqueue_dl_entity /kernel/sched/deadline.c:1370 [inline]
WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 enqueue_task_dl+0x1c17/0x2ba0 /kernel/sched/deadline.c:1441
This happens because the ->dl_boosted flag is currently not initialized by
__dl_clear_params() (unlike the other flags) and setup_new_dl_entity()
rightfully complains about it.
Initialize dl_boosted to 0.
Fixes:
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Scott Wood
|
fd844ba9ae |
sched/core: Check cpus_mask, not cpus_ptr in __set_cpus_allowed_ptr(), to fix mask corruption
This function is concerned with the long-term CPU mask, not the transitory mask the task might have while migrate disabled. Before this patch, if a task was migrate-disabled at the time __set_cpus_allowed_ptr() was called, and the new mask happened to be equal to the CPU that the task was running on, then the mask update would be lost. Signed-off-by: Scott Wood <swood@redhat.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20200617121742.cpxppyi7twxmpin7@linutronix.de |
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Peter Zijlstra
|
4f311afc20 |
sched/core: Fix CONFIG_GCC_PLUGIN_RANDSTRUCT build fail
As a temporary build fix, the proper cleanup needs more work.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Eric Biggers <ebiggers@kernel.org>
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Fixes:
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Linus Torvalds
|
48778464bb | Linux 5.8-rc2 | ||
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Linus Torvalds
|
817d914d17 |
selinux/stable-5.8 PR 20200621
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||
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Linus Torvalds
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16f4aa9b7c |
Pin control fixes for the v5.8 cycle, first take:
- Fix a warning on the Qualcomm SPMI GPIO chip being instatiated
twice without a unique irqchip struct.
- Use the noirq variants of the suspend and resume callbacks in
the Tegra driver.
- Clean up the errorpath on the MCP23s08 driver.
- Revert the use of devm_of_iomap() in the Freescale driver as
it was regressing the platform.
- Add some missing pins in the Qualcomm IPQ6018 driver.
- Fix a simple documentation bug in the pinctrl-single driver.
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Merge tag 'pinctrl-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some early fixes collected during the first week after the merge
window, all pretty self-evident, with the details below. The revert is
the crucial thing.
- Fix a warning on the Qualcomm SPMI GPIO chip being instatiated
twice without a unique irqchip struct
- Use the noirq variants of the suspend and resume callbacks in the
Tegra driver
- Clean up the errorpath on the MCP23s08 driver
- Revert the use of devm_of_iomap() in the Freescale driver as it was
regressing the platform
- Add some missing pins in the Qualcomm IPQ6018 driver
- Fix a simple documentation bug in the pinctrl-single driver"
* tag 'pinctrl-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: single: fix function name in documentation
pinctrl: qcom: ipq6018 Add missing pins in qpic pin group
Revert "pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'"
pinctrl: mcp23s08: Split to three parts: fix ptr_ret.cocci warnings
pinctrl: tegra: Use noirq suspend/resume callbacks
pinctrl: qcom: spmi-gpio: fix warning about irq chip reusage
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Linus Torvalds
|
be9160a90d |
Kbuild fixes for v5.8
- fix -gz=zlib compiler option test for CONFIG_DEBUG_INFO_COMPRESSED
- improve cc-option in scripts/Kbuild.include to clean up temp files
- improve cc-option in scripts/Kconfig.include for more reliable compile
option test
- do not copy modules.builtin by 'make install' because it would break
existing systems
- use 'userprogs' syntax for watch_queue sample
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Merge tag 'kbuild-fixes-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix -gz=zlib compiler option test for CONFIG_DEBUG_INFO_COMPRESSED
- improve cc-option in scripts/Kbuild.include to clean up temp files
- improve cc-option in scripts/Kconfig.include for more reliable
compile option test
- do not copy modules.builtin by 'make install' because it would break
existing systems
- use 'userprogs' syntax for watch_queue sample
* tag 'kbuild-fixes-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
samples: watch_queue: build sample program for target architecture
Revert "Makefile: install modules.builtin even if CONFIG_MODULES=n"
scripts: Fix typo in headers_install.sh
kconfig: unify cc-option and as-option
kbuild: improve cc-option to clean up all temporary files
Makefile: Improve compressed debug info support detection
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Linus Torvalds
|
7561393908 |
powerpc fixes for 5.8 #3
One fix for the interrupt rework we did last release which broke KVM-PR. Three commits fixing some fallout from the READ_ONCE() changes interacting badly with our 8xx 16K pages support, which uses a pte_t that is a structure of 4 actual PTEs. A cleanup of the 8xx pte_update() to use the newly added pmd_off(). A fix for a crash when handling an oops if CONFIG_DEBUG_VIRTUAL is enabled. A minor fix for the SPU syscall generation. Thanks to: Aneesh Kumar K.V, Christian Zigotzky, Christophe Leroy, Mike Rapoport, Nicholas Piggin. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl7vNVsTHG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgO3rD/46cXJQ9AMQqtZh3+sgWu95Zd6JOviL vfhWeH/kbt/p6OGPoLXoYChoFD44Mf7BmTEDflslYICrxvhu9zI2lYN+948zfrEY lIjjP+Dd6fr1D2o3+hnOOX/LHAVyyZJTsZp5i6ehTOXeUw8KOCF1ulVB3o5GgQK0 I/0oewL/SXNFnZS5qLgF2/OFS/BH3OnDG6mpICxCetZC9mNbHrTzos403ijyrvcX AsE4JSzI2UM9kT0pWXLa9QR3RgfBZ4wtMrnKAwdGI/E+YqAa7TuHZatPDAqoCJYY aePEZdweaeLWHQaQYSqlNP7YLAHuSdvZ2SvU65c2EKaaXug9sZJImyboJl/fo0Xo EtZiVbfaTfqsyi7EVQnsLMFYmtquacXoUH//nIoTro4pRkeMsM94BiK2HISa+8Bs KGQxBsnK2UaTgWERZHiK2VaKY/Tl1vGs09u7R21GiE2aD25ly+/q1Uo+WUr6iRKh 1v42AsH1VCeEZKAog43gBGOr7bCez8/90GNtTJnKTKndSRSybCH68ME/zBKdNACn A7M9E0CNNjTOQNJyQ2UhyiBJzUK6kT/5g+C4mEH5WG4FkO6YHT1JyEusvsfj6Oe9 RwDr98iNuM8AhaT30XmUXithDAl6JA5+3S0OcC2bL2xQ0O/VBPGZhIzgSFU8T7BY qpDj8l/8zk64Fw== =qws5 -----END PGP SIGNATURE----- Merge tag 'powerpc-5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - One fix for the interrupt rework we did last release which broke KVM-PR - Three commits fixing some fallout from the READ_ONCE() changes interacting badly with our 8xx 16K pages support, which uses a pte_t that is a structure of 4 actual PTEs - A cleanup of the 8xx pte_update() to use the newly added pmd_off() - A fix for a crash when handling an oops if CONFIG_DEBUG_VIRTUAL is enabled - A minor fix for the SPU syscall generation Thanks to Aneesh Kumar K.V, Christian Zigotzky, Christophe Leroy, Mike Rapoport, Nicholas Piggin. * tag 'powerpc-5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/8xx: Provide ptep_get() with 16k pages mm: Allow arches to provide ptep_get() mm/gup: Use huge_ptep_get() in gup_hugepte() powerpc/syscalls: Use the number when building SPU syscall table powerpc/8xx: use pmd_off() to access a PMD entry in pte_update() powerpc/64s: Fix KVM interrupt using wrong save area powerpc: Fix kernel crash in show_instructions() w/DEBUG_VIRTUAL |
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Linus Torvalds
|
93bbca271a |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - NULL dereference in octeontx - PM reference imbalance in ks-sa - deadlock in crypto manager - memory leak in drbg - missing socket limit check on receive SG list size in algif_skcipher - typos in caam - warnings in ccp and hisilicon * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: drbg - always try to free Jitter RNG instance crypto: marvell/octeontx - Fix a potential NULL dereference crypto: algboss - don't wait during notifier callback crypto: caam - fix typos crypto: ccp - Fix sparse warnings in sev-dev crypto: hisilicon - Cap block size at 2^31 crypto: algif_skcipher - Cap recv SG list at ctx->used hwrng: ks-sa - Fix runtime PM imbalance on error |
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Masahiro Yamada
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214377e9b7 |
samples: watch_queue: build sample program for target architecture
This userspace program includes UAPI headers exported to usr/include/. 'make headers' always works for the target architecture (i.e. the same architecture as the kernel), so the sample program should be built for the target as well. Kbuild now supports 'userprogs' for that. I also guarded the CONFIG option by 'depends on CC_CAN_LINK' because $(CC) may not provide libc. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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Masahiro Yamada
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2c6d9636ad |
Revert "Makefile: install modules.builtin even if CONFIG_MODULES=n"
This reverts commit
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Linus Torvalds
|
64677779e8 |
SCSI fixes on 20200620
One minor fix and two patches reworking the ata dma drain for the
!CONFIG_LIBATA case. The latter is a regression fix for
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Linus Torvalds
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a5c6a1f0fe |
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang: - a small collection of remaining API conversion patches (all acked) which allow to finally remove the deprecated API - some documentation fixes and a MAINTAINERS addition * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: MAINTAINERS: Add robert and myself as qcom i2c cci maintainers i2c: smbus: Fix spelling mistake in the comments Documentation/i2c: SMBus start signal is S not A i2c: remove deprecated i2c_new_device API Documentation: media: convert to use i2c_new_client_device() video: backlight: tosa_lcd: convert to use i2c_new_client_device() x86/platform/intel-mid: convert to use i2c_new_client_device() drm: encoder_slave: use new I2C API drm: encoder_slave: fix refcouting error for modules |
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Drew Fustini
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25fae75215 |
pinctrl: single: fix function name in documentation
Use the correct the function name in the documentation for
"pcs_parse_one_pinctrl_entry()".
"smux_parse_one_pinctrl_entry()" appears to be an artifact from the
development of a prior patch series ("simple pinmux driver") which
transformed into pinctrl-single.
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Link: https://lore.kernel.org/r/20200612112758.GA3407886@x1
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Linus Torvalds
|
8b6ddd10d6 |
A few fixes and small cleanups for tracing:
- Have recordmcount work with > 64K sections (to support LTO) - kprobe RCU fixes - Correct a kprobe critical section with missing mutex - Remove redundant arch_disarm_kprobe() call - Fix lockup when kretprobe triggers within kprobe_flush_task() - Fix memory leak in fetch_op_data operations - Fix sleep in atomic in ftrace trace array sample code - Free up memory on failure in sample trace array code - Fix incorrect reporting of function_graph fields in format file - Fix quote within quote parsing in bootconfig - Fix return value of bootconfig tool - Add testcases for bootconfig tool - Fix maybe uninitialized warning in ftrace pid file code - Remove unused variable in tracing_iter_reset() - Fix some typos -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCXu1jrRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qoCMAP91nOccE3X+Nvc3zET3isDWnl1tWJxk icsBgN/JwBRuTAD/dnWTHIWM2/5lTiagvyVsmINdJHP6JLr8T7dpN9tlxAQ= =Cuo7 -----END PGP SIGNATURE----- Merge tag 'trace-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: - Have recordmcount work with > 64K sections (to support LTO) - kprobe RCU fixes - Correct a kprobe critical section with missing mutex - Remove redundant arch_disarm_kprobe() call - Fix lockup when kretprobe triggers within kprobe_flush_task() - Fix memory leak in fetch_op_data operations - Fix sleep in atomic in ftrace trace array sample code - Free up memory on failure in sample trace array code - Fix incorrect reporting of function_graph fields in format file - Fix quote within quote parsing in bootconfig - Fix return value of bootconfig tool - Add testcases for bootconfig tool - Fix maybe uninitialized warning in ftrace pid file code - Remove unused variable in tracing_iter_reset() - Fix some typos * tag 'trace-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Fix maybe-uninitialized compiler warning tools/bootconfig: Add testcase for show-command and quotes test tools/bootconfig: Fix to return 0 if succeeded to show the bootconfig tools/bootconfig: Fix to use correct quotes for value proc/bootconfig: Fix to use correct quotes for value tracing: Remove unused event variable in tracing_iter_reset tracing/probe: Fix memleak in fetch_op_data operations trace: Fix typo in allocate_ftrace_ops()'s comment tracing: Make ftrace packed events have align of 1 sample-trace-array: Remove trace_array 'sample-instance' sample-trace-array: Fix sleeping function called from invalid context kretprobe: Prevent triggering kretprobe from within kprobe_flush_task kprobes: Remove redundant arch_disarm_kprobe() call kprobes: Fix to protect kick_kprobe_optimizer() by kprobe_mutex kprobes: Use non RCU traversal APIs on kprobe_tables if possible kprobes: Suppress the suspicious RCU warning on kprobes recordmcount: support >64k sections |
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Linus Torvalds
|
eede2b9b3f |
libnvdimm for 5.8-rc2
- Fix the visibility of the region 'align' attribute. The new unit tests
for region alignment handling caught a corner case where the alignment
cannot be specified if the region is converted from static to dynamic
provisioning at runtime.
- Add support for device health retrieval for the persistent memory
supported by the papr_scm driver. This includes both the standard
sysfs "health flags" that the nfit persistent memory driver publishes
and a mechanism for the ndctl tool to retrieve a health-command payload.
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Merge tag 'libnvdimm-for-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"A feature (papr_scm health retrieval) and a fix (sysfs attribute
visibility) for v5.8.
Vaibhav explains in the merge commit below why missing v5.8 would be
painful and I agreed to try a -rc2 pull because only cosmetics kept
this out of -rc1 and his initial versions were posted in more than
enough time for v5.8 consideration:
'These patches are tied to specific features that were committed to
customers in upcoming distros releases (RHEL and SLES) whose
time-lines are tied to 5.8 kernel release.
Being able to track the health of an nvdimm is critical for our
customers that are running workloads leveraging papr-scm nvdimms.
Missing the 5.8 kernel would mean missing the distro timelines and
shifting forward the availability of this feature in distro kernels
by at least 6 months'
Summary:
- Fix the visibility of the region 'align' attribute.
The new unit tests for region alignment handling caught a corner
case where the alignment cannot be specified if the region is
converted from static to dynamic provisioning at runtime.
- Add support for device health retrieval for the persistent memory
supported by the papr_scm driver.
This includes both the standard sysfs "health flags" that the nfit
persistent memory driver publishes and a mechanism for the ndctl
tool to retrieve a health-command payload"
* tag 'libnvdimm-for-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/region: always show the 'align' attribute
powerpc/papr_scm: Implement support for PAPR_PDSM_HEALTH
ndctl/papr_scm,uapi: Add support for PAPR nvdimm specific methods
powerpc/papr_scm: Improve error logging and handling papr_scm_ndctl()
powerpc/papr_scm: Fetch nvdimm health information from PHYP
seq_buf: Export seq_buf_printf
powerpc: Document details on H_SCM_HEALTH hcall
|
||
Sivaprakash Murugesan
|
7f5f4de83c |
pinctrl: qcom: ipq6018 Add missing pins in qpic pin group
The patch adds missing qpic data pins to qpic pingroup. These pins are
necessary for the qpic nand to work.
Fixes:
|
||
Haibo Chen
|
13f2d25b95 |
Revert "pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'"
This reverts commit |
||
|
Linus Torvalds
|
1566feea45 |
s390 fixes for 5.8-rc2
- Few ptrace fixes mostly for strace and seccomp_bpf kernel tests findings. - Cleanup unused pm callbacks in virtio ccw. - Replace kmalloc + memset with kzalloc in crypto. - Use $(LD) for vDSO linkage to make clang happy. - Fix vDSO clock_getres() to preserve the same behaviour as posix_get_hrtimer_res(). - Fix workqueue cpumask warning when NUMA=n and nr_node_ids=2. - Reduce SLSB writes during input processing, improve warnings and cleanup qdio_data usage in qdio. - Few fixes to use scnprintf() instead of snprintf(). -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl7uJy8ACgkQjYWKoQLX FBitMwgAovHP6O19ZS2RE2Ps20CjM+z0sLLGHF6aMrV7OqmOWrNnFzN4jT2j42Ck idSZ6sehVd3Uj6K8NnzrlSS3sjGRhVaQJEjjN+rLyw0HBwxspJJfW5HgcoMtqNH1 oo+nt+zw5jk+6MqHx4QEwTxN5rgGs6UMhiLIAIlkDu4bivgohvGUxe4RUrN/mINx cdYqomCkvovLT5sBTaWyXKNCDAdAWgNpOfdqc9MjOUXSbUg3lrUol0gUULzenPo7 wUN+sZ0di0Ox0+2+4m8LU1av/kMTLSSvnR9DW5KdpGTon1nwpZcdJnhI5o1v7uaU pIaMOYNieEHJ2DnieR9iBBSbGoNCmw== =gkgN -----END PGP SIGNATURE----- Merge tag 's390-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - a few ptrace fixes mostly for strace and seccomp_bpf kernel tests findings - cleanup unused pm callbacks in virtio ccw - replace kmalloc + memset with kzalloc in crypto - use $(LD) for vDSO linkage to make clang happy - fix vDSO clock_getres() to preserve the same behaviour as posix_get_hrtimer_res() - fix workqueue cpumask warning when NUMA=n and nr_node_ids=2 - reduce SLSB writes during input processing, improve warnings and cleanup qdio_data usage in qdio - a few fixes to use scnprintf() instead of snprintf() * tag 's390-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: fix syscall_get_error for compat processes s390/qdio: warn about unexpected SLSB states s390/qdio: clean up usage of qdio_data s390/numa: let NODES_SHIFT depend on NEED_MULTIPLE_NODES s390/vdso: fix vDSO clock_getres() s390/vdso: Use $(LD) instead of $(CC) to link vDSO s390/protvirt: use scnprintf() instead of snprintf() s390: use scnprintf() in sys_##_prefix##_##_name##_show s390/crypto: use scnprintf() instead of snprintf() s390/zcrypt: use kzalloc s390/virtio: remove unused pm callbacks s390/qdio: reduce SLSB writes during Input Queue processing selftests/seccomp: s390 shares the syscall and return value register s390/ptrace: fix setting syscall number s390/ptrace: pass invalid syscall numbers to tracing s390/ptrace: return -ENOSYS when invalid syscall is supplied s390/seccomp: pass syscall arguments via seccomp_data s390/qdio: fine-tune SLSB update |
||
|
Linus Torvalds
|
7fdfbe08a2 |
RISC-V Fixes for 5.8-rc2
This contains three fixes that I'd like to target for rc2: * A workaround for a compiler surprise related to the "r" inline assembly that allows LLVM to boot. * A fix to avoid WX-only mappings, which the ISA does not allow. While this probably manifests in many ways, the bug was found in stress-ng. * A missing lock in set_direct_map_*(), which due to a recent lockdep change started asserting. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAl7tRxkTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiaJZD/9hzS6fxNlcLaLyBLLroWLlWnwGAi7r T3hTyNVo3EG/hHw0NGEWzqVuqjnuo0MAHDlTfkD7SuuBtj2PtZHVdX5JA9QsJF1j KF3hz14GbbGuzOWlt6m+6KMU4r9+qX+0L3aqu0ShXVZhsHjKyuYTSHlwIRLzCzlQ jcCVnrIQtq0pAcGylmL5s/9kVFGrpE6m1+Xm+mpPbgQCbqFMYCBVx8sb2EnEPv/X TzgCzS8sjRG0FYIrquwxuHtKg+AlgmmaQw96fWOq9R4mJtNvcDFbaTT5MEqQYP6B kljNf3DAdKG0QqKCtNC5BvgE+45BpQ67ZIUypG00Y0zViY2ZOjNGqGi7kzzIqOWG IwwB6Gcb6CJnOWRJ2OlkDDdOe1VOvrE/ap+WEYE8Fb/TRQhdOjcHMzd9d/0JXe9R XySr5gtpppKABJjBWmzGfqLRXby7qQFXR4BqnpPGuqR1Z0l5MaihN2mlpOZrDbMS Y0j1vQuINBkoBqXBfqxCZb5gvwxHI+5lwFNy8chw8JZTOuvLYJ0s5bK8AF9fAGk8 7NCv+JCt2mrjMLRoZw7EFu4wqBTjjDXKP5AiiKHOCG9y4lokqLdATWirlWwScTt0 TvikaMYsDdiuhRpg0D0YCKGzQ9Cl23XvGe9fm6Ajhhkn6lONJD0/V/1i0MfY0+Nm 7TI46cNfvsUsWw== =ZAlD -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - a workaround for a compiler surprise related to the "r" inline assembly that allows LLVM to boot. - a fix to avoid WX-only mappings, which the ISA does not allow. While this probably manifests in many ways, the bug was found in stress-ng. - a missing lock in set_direct_map_*(), which due to a recent lockdep change started asserting. * tag 'riscv-for-linus-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: RISC-V: Acquire mmap lock before invoking walk_page_range RISC-V: Don't allow write+exec only page mapping request in mmap riscv/atomic: Fix sign extension for RV64I |
||
|
Linus Torvalds
|
27c2760561 |
linux-kselftest-5.8-rc2
This Kselftest update for Linux 5.8-rc2 consists of: - ftrace "requires:" list for simplifying and unifying requirement checks for each test case, adding "requires:" line instead of checking required ftrace interfaces in each test case. - a minor spelling correction patch -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl7s440ACgkQCwJExA0N Qxyl1A//YDbxzJlB6zrmSmagIKC0KGKDcSrAJNsV6K5lIEf7yPi2DkvQT6jpo27M Xtv+GTF8nuAJRuRceawKp622o+jT7dd7dUt0FFInsj2xPwTLFy0E+AvZ5j2cqps7 gqcdOeHU/u6QrprUX4JCoOf0NdjJsKwzfOXiaOlBGG26bqMZFOnhbd/DclwWbStJ gOIqMxp7feQ9yjm5ngSZVmQ6sbM+6ZwsywD1kXrSL68gQ+s3segnzDoaoHSFoGwj lysOHbx3+/Q+pH18nnFAp6H9csr+iMVqlj1FGN62JUVhkaMdlFhnk/cpO97Lvuwf nOU3BC0FWSjvquAhL2ZqGnfeXBoHSO9wfpOcC/Dyro4QozvlzigM1PBS3WoRbxzl 2ArZ985xhSqeuiJKa4CwLQWR495FOasm4gHBe9nVrqaiwAORZfdqeBgTJBTw8Y7K W3+DmA4ttZE6QNZokfgpGLWT4K9PRm8F5ZdzUX8+sqjAQmlMp30LW7lhhAlbprqc dKUAIB1dJwwT2gPsa/ntIf1SZEbMD8FlrAZDDBNZkId/IdgtRUrl9OCPGAwyrRJ7 pA4YxqBQqB1hwL51Dmk1KOlhePIfeDu9DFzUPgKETvuZA6ITmyM/artYaexcpDoF 7pvbLNsNsL7yuNF8y7wCSFj4IP8kPYRCBpmXR4hhugJI15M14dw= =nqUq -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest cleanups from Shuah Khan: - ftrace "requires:" list for simplifying and unifying requirement checks for each test case, adding "requires:" line instead of checking required ftrace interfaces in each test case. - a minor spelling correction patch * tag 'linux-kselftest-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/ftrace: Support ":README" suffix for requires selftests/ftrace: Support ":tracer" suffix for requires selftests/ftrace: Convert check_filter_file() with requires list selftests/ftrace: Convert required interface checks into requires list selftests/ftrace: Add "requires:" list support selftests/ftrace: Return unsupported for the unconfigured features selftests/ftrace: Allow ":" in description tools: testing: ftrace: trigger: fix spelling mistake |
||
David Howells
|
5481fc6eb8 |
afs: Fix hang on rmmod due to outstanding timer
The fileserver probe timer, net->fs_probe_timer, isn't cancelled when
the kafs module is being removed and so the count it holds on
net->servers_outstanding doesn't get dropped..
This causes rmmod to wait forever. The hung process shows a stack like:
afs_purge_servers+0x1b5/0x23c [kafs]
afs_net_exit+0x44/0x6e [kafs]
ops_exit_list+0x72/0x93
unregister_pernet_operations+0x14c/0x1ba
unregister_pernet_subsys+0x1d/0x2a
afs_exit+0x29/0x6f [kafs]
__do_sys_delete_module.isra.0+0x1a2/0x24b
do_syscall_64+0x51/0x95
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fix this by:
(1) Attempting to cancel the probe timer and, if successful, drop the
count that the timer was holding.
(2) Make the timer function just drop the count and not schedule the
prober if the afs portion of net namespace is being destroyed.
Also, whilst we're at it, make the following changes:
(3) Initialise net->servers_outstanding to 1 and decrement it before
waiting on it so that it doesn't generate wake up events by being
decremented to 0 until we're cleaning up.
(4) Switch the atomic_dec() on ->servers_outstanding for ->fs_timer in
afs_purge_servers() to use the helper function for that.
Fixes:
|
||
|
David Howells
|
f8ea5c7bce |
afs: Fix afs_do_lookup() to call correct fetch-status op variant
Fix afs_do_lookup()'s fallback case for when FS.InlineBulkStatus isn't supported by the server. In the fallback, it calls FS.FetchStatus for the specific vnode it's meant to be looking up. Commit |
||
Christophe Leroy
|
c0e1c8c22b |
powerpc/8xx: Provide ptep_get() with 16k pages
READ_ONCE() now enforces atomic read, which leads to:
CC mm/gup.o
In file included from ./include/linux/kernel.h:11:0,
from mm/gup.c:2:
In function 'gup_hugepte.constprop',
inlined from 'gup_huge_pd.isra.79' at mm/gup.c:2465:8:
./include/linux/compiler.h:392:38: error: call to '__compiletime_assert_222' declared with attribute error: Unsupported access size for {READ,WRITE}_ONCE().
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
./include/linux/compiler.h:373:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^
./include/linux/compiler.h:392:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
./include/linux/compiler.h:405:2: note: in expansion of macro 'compiletime_assert'
compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
^
./include/linux/compiler.h:291:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
compiletime_assert_rwonce_type(x); \
^
mm/gup.c:2428:8: note: in expansion of macro 'READ_ONCE'
pte = READ_ONCE(*ptep);
^
In function 'gup_get_pte',
inlined from 'gup_pte_range' at mm/gup.c:2228:9,
inlined from 'gup_pmd_range' at mm/gup.c:2613:15,
inlined from 'gup_pud_range' at mm/gup.c:2641:15,
inlined from 'gup_p4d_range' at mm/gup.c:2666:15,
inlined from 'gup_pgd_range' at mm/gup.c:2694:15,
inlined from 'internal_get_user_pages_fast' at mm/gup.c:2795:3:
./include/linux/compiler.h:392:38: error: call to '__compiletime_assert_219' declared with attribute error: Unsupported access size for {READ,WRITE}_ONCE().
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
./include/linux/compiler.h:373:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^
./include/linux/compiler.h:392:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
./include/linux/compiler.h:405:2: note: in expansion of macro 'compiletime_assert'
compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
^
./include/linux/compiler.h:291:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
compiletime_assert_rwonce_type(x); \
^
mm/gup.c:2199:9: note: in expansion of macro 'READ_ONCE'
return READ_ONCE(*ptep);
^
make[2]: *** [mm/gup.o] Error 1
Define ptep_get() on 8xx when using 16k pages.
Fixes:
|
||
|
Christophe Leroy
|
481e980a7c |
mm: Allow arches to provide ptep_get()
Since commit |
||
|
Christophe Leroy
|
55ca22633a |
mm/gup: Use huge_ptep_get() in gup_hugepte()
gup_hugepte() reads hugepage table entries, it can't read
them directly, huge_ptep_get() must be used.
Fixes:
|
||
Dan Williams
|
9df24eaef8 |
Merge branch 'for-5.8/papr_scm' into libnvdimm-for-next
Include the papr_scm health retrieval feature for v5.8-rc2. The functionality was initially posted well in advance of the merge window, but review comments and a late build-bot warning kept them out of the v5.8-rc1 libnvdimm pull request. Vaibhav notes: These patches are tied to specific features that were committed to customers in upcoming distros releases (RHEL and SLES) whose time-lines are tied to 5.8 kernel release. Being able to track the health of an nvdimm is critical for our customers that are running workloads leveraging papr-scm nvdimms. Missing the 5.8 kernel would mean missing the distro timelines and shifting forward the availability of this feature in distro kernels by at least 6 months. |
||
|
Linus Torvalds
|
4333a9b0b6 |
io_uring-5.8-2020-06-19
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||
|
Linus Torvalds
|
d2b1c81f5f |
block-5.8-2020-06-19
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl7s0SAQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpp+YEACVqFvsfzxKCqa61IzyuOaPfnj9awyP+MY2 7V6y9sDDHL8sp6aPDbHvqFnqz0O7E+7nHVZD2rf2qc6tKKMvJYNO/BFZSXPvWTZV KQ4cBChf/LDwqAKOnI4ZhmF5UcSyyob1yMy4uJ+U0gQiXXrRMbwJ3N1K24a9dr4c epkzGavR0Q+PJ9BbUgjACjbRdT+vrP4bOu0cuyCGkIpD9eCerKJ6mFaUAj0FDthD bg4BJj+c8Ij6LO0V++Wga6OxccmL43KeP0ky8B3x07PfAl+tDWqsbHSlU2YPtdcq 5nKgMMTW16mVnZeO2/W0JB7tn89VubsmyvIFcm2KNeeRqSnEZyW9HI8n4kq994Ju xMH24lgbsU4trNeYkgOmzPoJJZ+LShkn+rnldyI1U/fhpEYub7DqfVySuT7ti9in uFpQdeRUmPsdw92F3+o6h8OYAflpcQQ7CblkzxPEeV4OyzOZasb+S9tMNPe59KBh 0MtHv9IfzgtDihR6HuXifitXaP+GtH4x3D2z0dzEdooHKHC/+P3WycS5daG+3WKQ xV5lJruvpTuxhXKLFAH0wRrxnVlB0VUvhQ21T3WgHrwF0btbdmQMHFc83XOxBIB4 jHWJMHGc4xp1ZdpWFBC8Cj79OmJh1w/ao8+/cf8SUoTB0LzFce1B8LvwnxgpcpUk VjIOrl7zhQ== =LeLd -----END PGP SIGNATURE----- Merge tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-block Pull block fixes from Jens Axboe: - Use import_uuid() where appropriate (Andy) - bcache fixes (Coly, Mauricio, Zhiqiang) - blktrace sparse warnings fix (Jan) - blktrace concurrent setup fix (Luis) - blkdev_get use-after-free fix (Jason) - Ensure all blk-mq maps are updated (Weiping) - Loop invalidate bdev fix (Zheng) * tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-block: block: make function 'kill_bdev' static loop: replace kill_bdev with invalidate_bdev partitions/ldm: Replace uuid_copy() with import_uuid() where it makes sense block: update hctx map when use multiple maps blktrace: Avoid sparse warnings when assigning q->blk_trace blktrace: break out of blktrace setup on concurrent calls block: Fix use-after-free in blkdev_get() trace/events/block.h: drop kernel-doc for dropped function parameter blk-mq: Remove redundant 'return' statement bcache: pr_info() format clean up in bcache_device_init() bcache: use delayed kworker fo asynchronous devices registration bcache: check and adjust logical block size for backing devices bcache: fix potential deadlock problem in btree_gc_coalesce |
||
|
Linus Torvalds
|
592be758f1 |
libata-5.8-2020-06-19
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||
|
Linus Torvalds
|
62c91ead97 |
drm fixes for 5.8-rc2
i915:
- Fix for timeslicing and virtual engines/unpremptable requests
(+ 1 dependency patch)
- Fixes into TypeC register programming and interrupt storm detecting
- Disable DIP on MST ports with the transcoder clock still on
- Avoid missing GT workarounds at reset for HSW and older gens
- Fix for unwinding multiple requests missing force restore
- Fix encoder type check for DDI vswing sequence
- Build warning fixes
amdgpu:
- Fix kvfree/kfree mixup
- Fix hawaii device id in powertune configuration
- Display FP fixes
- Documentation fixes
amdkfd:
- devcgroup check fix
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Merge tag 'drm-fixes-2020-06-19' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Just i915 and amd here.
i915 has some workaround movement so they get applied at the right
times, and a timeslicing fix, along with some display fixes.
AMD has a few display floating point fix and a devcgroup fix for
amdkfd.
i915:
- Fix for timeslicing and virtual engines/unpremptable requests (+ 1
dependency patch)
- Fixes into TypeC register programming and interrupt storm detecting
- Disable DIP on MST ports with the transcoder clock still on
- Avoid missing GT workarounds at reset for HSW and older gens
- Fix for unwinding multiple requests missing force restore
- Fix encoder type check for DDI vswing sequence
- Build warning fixes
amdgpu:
- Fix kvfree/kfree mixup
- Fix hawaii device id in powertune configuration
- Display FP fixes
- Documentation fixes
amdkfd:
- devcgroup check fix"
* tag 'drm-fixes-2020-06-19' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/amdgpu: fix documentation around busy_percentage
drm/amdgpu/pm: update comment to clarify Overdrive interfaces
drm/amdkfd: Use correct major in devcgroup check
drm/i915/display: Fix the encoder type check
drm/i915/icl+: Fix hotplug interrupt disabling after storm detection
drm/i915/gt: Move gen4 GT workarounds from init_clock_gating to workarounds
drm/i915/gt: Move ilk GT workarounds from init_clock_gating to workarounds
drm/i915/gt: Move snb GT workarounds from init_clock_gating to workarounds
drm/i915/gt: Move vlv GT workarounds from init_clock_gating to workarounds
drm/i915/gt: Move ivb GT workarounds from init_clock_gating to workarounds
drm/i915/gt: Move hsw GT workarounds from init_clock_gating to workarounds
drm/i915/icl: Disable DIP on MST ports with the transcoder clock still on
drm/i915/gt: Incrementally check for rewinding
drm/i915/tc: fix the reset of ln0
drm/i915/gt: Prevent timeslicing into unpreemptable requests
drm/i915/selftests: Restore to default heartbeat
drm/i915: work around false-positive maybe-uninitialized warning
drm/i915/pmu: avoid an maybe-uninitialized warning
drm/i915/gt: Incorporate the virtual engine into timeslicing
drm/amd/display: Rework dsc to isolate FPU operations
...
|
||
|
Linus Torvalds
|
672f9255a7 |
An important follow-up for replica reads support that went into -rc1
and two target_copy() fixups. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl7ssCITHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi1cVB/9V1BPWKdPKiRWaOgYJSd0qk3izSZQp 4U+foILpQi0fo23H5PAINrYEcURFjNxfFF7P9esQQ4i3NhbA/b7/tLu6sSsxq5HQ FoUgYPj5WXKiJ+pF2JayP6lpxGDdUHjWYFBR28P9g9otOepRBkJl91ZuU7Hp9rSp usMSl1+3zJ+HModREk4VmNUgEDW/8DW2EDXXETzoLdhgUXhG+6KYC2qrExrBR7L3 k1V9+zPgZK+qykim0p453eCQbYlO74SKv1/Q7FPqYGGkohyyHaYMqw7/xItbqMPa 5lACBuobQ4YiDfhiNcF15Mr1gZjexYbAcAx799bnbv3z/yTZi9IFszhK =MFh3 -----END PGP SIGNATURE----- Merge tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-client Pull ceph fixes from Ilya Dryomov: "An important follow-up for replica reads support that went into -rc1 and two target_copy() fixups" * tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-client: libceph: don't omit used_replica in target_copy() libceph: don't omit recovery_deletes in target_copy() libceph: move away from global osd_req_flags |
||
|
Linus Torvalds
|
84bc1993e2 |
arm64 fixes for -rc2
- Fix handling of watchpoints triggered by uaccess routines - Fix initialisation of gigantic pages for CMA buffers - Raise minimum clang version for BTI to avoid miscompilation - Fix data race in SVE vector length configuration code - Ensure address tags are ignored in kern_addr_valid() - Dump register state on fatal BTI exception - kexec_file() cleanup to use struct_size() macro -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl7sl1IQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNNESB/0UhaH4JI3UPu1DAESsHyYqh6Jdb8TljMxd uiAkBT8hJhgq5gUQLBicFpo5AAnEgGuQcG3OMWxWG8PG1MevHemKV1TW38QtbJlA p6jwMriSXiwe6199ImoIH6tujshKnoSeo33B470N6i1TzEz8lmS9ml5v1epIT7q4 1wEPSX+o1Zi/CQKjrfW1UQW7I9C5G26BXusQH4b2Sz8B7RIzHA/+/LqUjcYVtSph yjJn1jHhc0GhC7qZUgea4Rz6WZNGlBebGBksIqssvBNhO/St4UmWGmhiUS3YX7rn cP7DicrrWVwCib2xUr3fwxxPki4rlV+xHIINVINrOwE1BpqRENl5 =Gthp -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Unfortunately, we still have a number of outstanding issues so there will be more fixes to come, but this lot are a good start. - Fix handling of watchpoints triggered by uaccess routines - Fix initialisation of gigantic pages for CMA buffers - Raise minimum clang version for BTI to avoid miscompilation - Fix data race in SVE vector length configuration code - Ensure address tags are ignored in kern_addr_valid() - Dump register state on fatal BTI exception - kexec_file() cleanup to use struct_size() macro" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints arm64: kexec_file: Use struct_size() in kmalloc() arm64: mm: reserve hugetlb CMA after numa_init arm64: bti: Require clang >= 10.0.1 for in-kernel BTI support arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n arm64: pgtable: Clear the GP bit for non-executable kernel pages arm64: mm: reset address tag set by kasan sw tagging arm64: traps: Dump registers prior to panic() in bad_mode() arm64/sve: Eliminate data races on sve_default_vl docs/arm64: Fix typo'd #define in sve.rst arm64: remove TEXT_OFFSET randomization |
||
|
Linus Torvalds
|
98b769942c |
Add flex-array size helper
-----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl7sJLcWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJux3D/9RCaL24L5lNMZrfWo6lHhXUain EdUUdnzKB2uschPXcFPm7olaAGrwh/nlbJc51uKWrdEaLbM2xausC6T+tg5K/fJc 1o/Rhe74GhuMlZqcJwKG90pM/11lHQsoYavNl3SZLiDwgIIXxOzdP/ZMN3K+Ug75 W/5eVhwdU5A87tCXU50UwcAWvLw2kBQzS7HDa4CWuiV4cACNBaTtiUomJ/yCFE5V gZW139HM/XGFKMNxLvICT00ZznePDcvYbXlXdRNGKKC8O8t0Si6Xb7TLMUhcBNIQ Npvz2g+hofhiFlVDMOpOeAxRrkb7gdYaOqTHk9/YcxarsHkJA5EN7HQnjMnNScNf 5HIFnP5IOrcnjA009qM+tvFCMJo3FglBSr3pLCcnUoFwnut7sY8+z67JaeVRp2Hc 3SOcXWamh4HJW+YsDR7bAgBkUPq0FmMY6oGVqIqwTWQJUwGHS4RljFl43HqFn7Fm Bggk1OBjm4Kifj0EwujBdLDNuaaNMb2bmSFr4L6CJcQBU7gOyT87TuSOHR5oI7U7 ywQDr9sQIB70wmQ27z9OqZwEnTIV0LzlD0ZfrhkNS4bcK42livS0qv3hx8YnPaTg a0leNmHB6qwkIxoFdCMY2E6ZmpCPUAwPk8NqTPrPmwfMoDbSlMW/6ENjYSyiFB8r nbpx2KU0JjsRlYfkhA== =94sc -----END PGP SIGNATURE----- Merge tag 'overflow-v5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull flex-array size helper from Kees Cook: "During the treewide clean-ups of zero-length "flexible arrays", the struct_size() helper was heavily used, but it was noticed that many times it would have been nice to have an additional helper to get the size of just the flexible array itself. This need appears to be even more common when cleaning up the 1-byte array "flexible arrays", so Gustavo implemented it. I'd love to get this landed early so it can be used during the v5.9 dev cycle to ease the 1-byte array cleanups." * tag 'overflow-v5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: overflow.h: Add flex_array_size() helper |
||
|
Linus Torvalds
|
98d7e741a0 |
perf tooling fixes for v5.8:
- Update various UAPI headers, some automatically adding support for
a new MSR and the faccess2 syscall.
- Fix corner case NULL deref in the histograms code.
- Fix corner case NULL deref in 'perf stat' aggregation code.
- Fix array pointer deref and old style declaration in the parsing of events.
- Fix segfault when processing ZSTD compressed perf.data files in 'perf script'
due to lack of initialization of the ZSTD library.
- Handle __attribute__((user)) in libtraceevent fixing the parsing of syscall
tracepoints with user buffers.
- Make libtraevent aware of __builtin_expect() appearing in tracepoint fields.
- Make the BPF prologue generation use bpf_probe_read_{user,kernel}().
- Fix the '@user' attribute parsing in kprobes variables in 'perf probe'.
- Fix error message when asking for -fsanitize=address without required libraries.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Test results:
The first ones are container based builds of tools/perf with and without libelf
support. Where clang is available, it is also used to build perf with/without
libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
when clang and its devel libraries are installed.
The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.
Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.
The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.
Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.
Ubuntu 19.10 and Debian experimental is failing when linking against libllvm,
which isn't the default, needs to be investigated, haven't tested with CC=gcc,
but should be the same problem:
+ make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= LIBCLANGLLVM=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
...
/usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_ignoringImpCasts0Matcher::matches(clang::Expr const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
(.text._ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x43): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
/usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasLoopVariable0Matcher::matches(clang::CXXForRangeStmt const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
(.text._ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x48): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
...
It builds ok with the default set of options.
And with the newest gcc 10.1.1 in fedora rawhide, same version but slightly
newer build than the one in fedora 32, it is failing with:
util/scripting-engines/trace-event-python.c: In function 'python_start_script':
util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
1595 | PyMODINIT_FUNC (*initfunc)(void);
| ^~~~~~~~~~~~~~
Will be fixed soon.
# export PERF_TARBALL=http://192.168.124.1/perf/perf-5.8.0-rc1.tar.xz
# dm
1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
5 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
6 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
7 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
8 alpine:3.11 : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
9 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
10 alpine:edge : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
11 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
12 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1
13 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0
14 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
15 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
16 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
17 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
18 centos:5 : Ok gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
19 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
20 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
21 centos:8 : Ok gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4), clang version 8.0.1 (Red Hat 8.0.1-1.module_el8.1.0+215+a01033fb)
22 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 9.3.1 20200501 releases/gcc-9.3.0-196-gcb2c76c8b1, clang version 10.0.0
23 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
24 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
25 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
26 debian:experimental : FAIL gcc (Debian 9.3.0-13) 9.3.0, clang version 9.0.1-12
27 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
28 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
29 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
30 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909
31 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
32 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
33 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
34 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
35 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
36 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
37 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
38 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
39 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
40 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
41 fedora:30 : Ok gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1-1), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
42 fedora:30-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
43 fedora:30-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
44 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
45 fedora:32 : Ok gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-1.fc32)
46 fedora:rawhide : FAIL gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-4.fc33)
47 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 9.2.0-r2 p3) 9.2.0
48 mageia:5 : Ok gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
49 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
50 mageia:7 : Ok gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
51 manjaro:latest : Ok gcc (GCC) 9.2.0, clang version 9.0.0 (tags/RELEASE_900/final)
52 openmandriva:cooker : Ok gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1
53 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548)
54 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
55 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
56 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
57 opensuse:tumbleweed : Ok gcc (SUSE Linux) 9.3.1 20200406 [revision 6db837a5288ee3ca5ec504fbd5a765817e556ac2], clang version 10.0.0
58 oraclelinux:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
59 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.3)
60 oraclelinux:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
61 ubuntu:12.04 : Ok gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
62 ubuntu:14.04 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
63 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
64 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
65 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
66 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
67 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
68 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
69 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
70 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
71 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
72 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
73 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
74 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
75 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
76 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
77 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
78 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
79 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
80 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
81 ubuntu:18.10 : Ok gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final)
82 ubuntu:19.04 : Ok gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final)
83 ubuntu:19.04-x-alpha : Ok alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
84 ubuntu:19.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0
85 ubuntu:19.04-x-hppa : Ok hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
86 ubuntu:19.10 : FAIL gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 9.0.0-2 (tags/RELEASE_900/final)
87 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
#
# uname -a
Linux five 5.7.0 #1 SMP Mon Jun 1 12:29:31 -03 2020 x86_64 x86_64 x86_64 GNU/Linux
# git log --oneline -1
|
||
Loic Poulain
|
28f9f8fb4f |
MAINTAINERS: Add robert and myself as qcom i2c cci maintainers
Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Robert Foss <robert.foss@linaro.org> [wsa: kept sorting] Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
Keyur Patel
|
a23ff37b32 |
i2c: smbus: Fix spelling mistake in the comments
Fix spelling mistake in the comments with help of `codespell`. seperate ==> separate Signed-off-by: Keyur Patel <iamkeyur96@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
Daniel Schaefer
|
a5765124e6 |
Documentation/i2c: SMBus start signal is S not A
Just like all other I2C/SMBus commands, the start signal for the SMBus
Quick Command is S, not A.
Fixes:
|
||
Wolfram Sang
|
390fd0475a |
i2c: remove deprecated i2c_new_device API
All in-tree users have been converted to the new i2c_new_client_device function, so remove this deprecated one. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
|
Wolfram Sang
|
bc5a3e44af |
Documentation: media: convert to use i2c_new_client_device()
Move away from the deprecated API and advertise the new one. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
|
Wolfram Sang
|
9e1b93b9f6 |
video: backlight: tosa_lcd: convert to use i2c_new_client_device()
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
|
Wolfram Sang
|
f04a5ba175 |
x86/platform/intel-mid: convert to use i2c_new_client_device()
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
|
Wolfram Sang
|
bb7d93fff6 |
drm: encoder_slave: use new I2C API
i2c_new_client() is deprecated, use the replacement i2c_new_client_device(). Also, we have a helper to check if a driver is bound. Use it to simplify the code. Note that this changes the errno for a failed device creation from ENOMEM to ENODEV. No callers currently interpret this errno, though, so we use this condensed error check. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Wolfram Sang <wsa@kernel.org> |
||
|
Wolfram Sang
|
f78d4032de |
drm: encoder_slave: fix refcouting error for modules
module_put() balances try_module_get(), not request_module(). Fix the
error path to match that.
Fixes:
|
||
Atish Patra
|
0e2c09011d
|
RISC-V: Acquire mmap lock before invoking walk_page_range
As per walk_page_range documentation, mmap lock should be acquired by the caller before invoking walk_page_range. mmap_assert_locked gets triggered without that. The details can be found here. http://lists.infradead.org/pipermail/linux-riscv/2020-June/010335.html Fixes: 395a21ff859c(riscv: add ARCH_HAS_SET_DIRECT_MAP support) Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Michel Lespinasse <walken@google.com> Reviewed-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> |
||
Yash Shah
|
e0d17c842c
|
RISC-V: Don't allow write+exec only page mapping request in mmap
As per the table 4.4 of version "20190608-Priv-MSU-Ratified" of the RISC-V instruction set manual[0], the PTE permission bit combination of "write+exec only" is reserved for future use. Hence, don't allow such mapping request in mmap call. An issue is been reported by David Abdurachmanov, that while running stress-ng with "sysbadaddr" argument, RCU stalls are observed on RISC-V specific kernel. This issue arises when the stress-sysbadaddr request for pages with "write+exec only" permission bits and then passes the address obtain from this mmap call to various system call. For the riscv kernel, the mmap call should fail for this particular combination of permission bits since it's not valid. [0]: http://dabbelt.com/~palmer/keep/riscv-isa-manual/riscv-privileged-20190608-1.pdf Signed-off-by: Yash Shah <yash.shah@sifive.com> Reported-by: David Abdurachmanov <david.abdurachmanov@gmail.com> [Palmer: Refer to the latest ISA specification at the only link I could find, and update the terminology.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> |
||
Dave Airlie
|
8a7a3d1d0d |
Merge tag 'amd-drm-fixes-5.8-2020-06-17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.8-2020-06-17: amdgpu: - Fix kvfree/kfree mixup - Fix hawaii device id in powertune configuration - Display FP fixes - Documentation fixes amdkfd: - devcgroup check fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200617220733.3773183-1-alexander.deucher@amd.com |
||
|
Dave Airlie
|
7ac98ff024 |
Merge tag 'drm-intel-fixes-2020-06-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix for timeslicing and virtual engines/unpremptable requests (+ 1 dependency patch) - Fixes into TypeC register programming and interrupt storm detecting - Disable DIP on MST ports with the transcoder clock still on - Avoid missing GT workarounds at reset for HSW and older gens - Fix for unwinding multiple requests missing force restore - Fix encoder type check for DDI vswing sequence - Build warning fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200618124659.GA12342@jlahtine-desk.ger.corp.intel.com |
||
|
Linus Torvalds
|
5e857ce6ea |
Merge branch 'hch' (maccess patches from Christoph Hellwig)
Merge non-faulting memory access cleanups from Christoph Hellwig:
"Andrew and I decided to drop the patches implementing your suggested
rename of the probe_kernel_* and probe_user_* helpers from -mm as
there were way to many conflicts.
After -rc1 might be a good time for this as all the conflicts are
resolved now"
This also adds a type safety checking patch on top of the renaming
series to make the subtle behavioral difference between 'get_user()' and
'get_kernel_nofault()' less potentially dangerous and surprising.
* emailed patches from Christoph Hellwig <hch@lst.de>:
maccess: make get_kernel_nofault() check for minimal type compatibility
maccess: rename probe_kernel_address to get_kernel_nofault
maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
|