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55e6be657b
35884 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
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55e6be657b |
Merge branch 'for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup changes from Tejun Heo: "The only notable change is Vipin's new misc cgroup controller. This implements generic support for resources which can be controlled by simply counting and limiting the number of resource instances - ie there's X number of these on the system and this cgroup subtree can have upto Y of those. The first user is the address space IDs used for virtual machine memory encryption and expected future usages are similar - niche hardware features with concrete resource limits and simple usage models" * 'for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: use tsk->in_iowait instead of delayacct_is_task_waiting_on_io() cgroup/cpuset: fix typos in comments cgroup: misc: mark dummy misc_cg_res_total_usage() static inline svm/sev: Register SEV and SEV-ES ASIDs to the misc controller cgroup: Miscellaneous cgroup documentation. cgroup: Add misc cgroup controller |
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Linus Torvalds
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eb6bbacc46 |
Livepatching changes for 5.13
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Linus Torvalds
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7f3d08b255 |
printk changes for 5.13
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAmCIBMIACgkQUqAMR0iA lPIt9w//bbHUN/JsNtLCs/849oExdUn/thVajrD5yELttYZXhdzbXncNdkGX9tlU 4JmExmUoqKYdN6JhSnrcYvckHj7XXZM7pVh9IdzqRh10MEXIQ+7IUHjQc8034Zs/ W4/oZmfMtBjszap+cJ9hvdp9qaJkPz/fRLGlrbjc1K4hhxDa1gGmeD35SKswGltm q6RzX3uRl5JbBrYsLoqb28MGYRHhjf2+Pvndoj+5Nn9FtwPSot6jAkyqY5Y6iJlS W2EsFqOt+Kv7/I93FyQlnXC6Nx7vntmow7knmmGPXDf2BqLb0J8Bxl3fwuzpQoao nZzL/p9GQ4ZXF6y8gRV8+RzPIcftBdayOswEDGH0LzlTkbAe/9Sq9Lo7a4Z8jxHW ro0P+PSRK5Ksm7jvpVmSTg+Nt+XqDA5zA1lAorX1UjsyeDDNF9ndQ4C+ZNhCKo54 y+RDgtAArJMIvsHLQ53ReoOct5NnGVNb8G/r3bIAu+Dn6K3nesr6fP1XG8iduseL yFlLB7w214BQMr2B/C+8lQvj54wWE4lea2+LNvObxC5b8puYj0fEniUxTYP6bcB5 QT+LfTToufYz4US7ggJy6hoEfohifGWVvDHbn9tXmyXotSTHH7pHdYypqY+UO+kl 7BkwzNFCm4qCIKsg8nyJxT2hDOlpcCrQx1dBIjveMqJ0c5+ahXU= =ovSn -----END PGP SIGNATURE----- Merge tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Stop synchronizing kernel log buffer readers by logbuf_lock. As a result, the access to the buffer is fully lockless now. Note that printk() itself still uses locks because it tries to flush the messages to the console immediately. Also the per-CPU temporary buffers are still there because they prevent infinite recursion and serialize backtraces from NMI. All this is going to change in the future. - kmsg_dump API rework and cleanup as a side effect of the logbuf_lock removal. - Make bstr_printf() aware that %pf and %pF formats could deference the given pointer. - Show also page flags by %pGp format. - Clarify the documentation for plain pointer printing. - Do not show no_hash_pointers warning multiple times. - Update Senozhatsky email address. - Some clean up. * tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (24 commits) lib/vsprintf.c: remove leftover 'f' and 'F' cases from bstr_printf() printk: clarify the documentation for plain pointer printing kernel/printk.c: Fixed mundane typos printk: rename vprintk_func to vprintk vsprintf: dump full information of page flags in pGp mm, slub: don't combine pr_err with INFO mm, slub: use pGp to print page flags MAINTAINERS: update Senozhatsky email address lib/vsprintf: do not show no_hash_pointers message multiple times printk: console: remove unnecessary safe buffer usage printk: kmsg_dump: remove _nolock() variants printk: remove logbuf_lock printk: introduce a kmsg_dump iterator printk: kmsg_dumper: remove @active field printk: add syslog_lock printk: use atomic64_t for devkmsg_user.seq printk: use seqcount_latch for clear_seq printk: introduce CONSOLE_LOG_MAX printk: consolidate kmsg_dump_get_buffer/syslog_print_all code printk: refactor kmsg_dump_get_buffer() ... |
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Linus Torvalds
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916a75965e |
kgdb patches for 5.13
Exclusively tidy ups this cycle. Most of them are thanks to Sumit Garg and, as it happens, the clean ups do result in a slight increase in the line count. This is due to registering kdb commands using data structures rather than function calls which, in turn, simplifies the memory management during command registration. In addition to changes to command registration we also have some dead code removal, a clearer implementation of environment variable handling and a typo fix. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAmCIEcIACgkQfOMlXTn3 iKHaWRAApW5fVDvM4ACAYYzqnq+ID2wW5h9XHpbyFqeaErQQEwjIcQHKMnHGMQ7J 2Smb8r9hmk93HgetUAYUe1xoU1/UgiVUlLxZDmtWw8Kf/e9unRcFAa6nUUxeFDn9 J3s1ZLAGOyjxThRKqOhgoQLE0c+tby7QaiEFF1O/iHTxWIn/euSTRbENoF40xDXU oheEfysWF9TpRo/96ZO14tbBHj6THrjyKkHFzYyjRs29wc/j/ofLg9OJj4tzuMne XecT7npDJ1JFoyZfkvxxK8TW/a2MLaH1EVO3EpiBM6tMSlHW3NRCehXXlJ6JyGY0 wAYwd5hgldXcVL8kmDXIC8qhuhGf7mCaU/8AmWyISj+lQcmcNfZYivJmZjdEW3qT yFkZ3k/r18N7/tRPbvOarlhxNHx+eCaFGm5ffz9VmMHMp1nrTk1lGhK63gTel3B0 ndIbvpN4ujWpes5lDg2knvZpaRIClSvisn/UyuuzZyWmeTT/kdUVHruSmopUFw9m BEWvAh0HwlR9dRhB8UKUyFF7w5fMXXw0+9j5HOw7gOR78QoNUZymBsxsISWp9fOO +Pzz3B9+TQdt9aZP1frMgDvNf6HDebxDZnmgCh5uMoLiKXAqJtJYdmLCOiTjtg35 FG44QhZFFlyDQdmPFf3hY+hGf2YxNdk+zdlyYq/amFjm5N3jGUM= =2I9J -----END PGP SIGNATURE----- Merge tag 'kgdb-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux Pull kgdb updates from Daniel Thompson: "Exclusively tidy ups this cycle. Most of them are thanks to Sumit Garg and, as it happens, the clean ups do result in a slight increase in the line count. This is due to registering kdb commands using data structures rather than function calls which, in turn, simplifies the memory management during command registration. In addition to changes to command registration we also have some dead code removal, a clearer implementation of environment variable handling and a typo fix" * tag 'kgdb-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Refactor env variables get/set code kernel: debug: Ordinary typo fixes in the file gdbstub.c kdb: Simplify kdb commands registration kdb: Remove redundant function definitions/prototypes |
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Linus Torvalds
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e359bce39d |
audit/stable-5.13 PR 20210426
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Linus Torvalds
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f1c921fb70 |
selinux/stable-5.13 PR 20210426
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Linus Torvalds
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57fa2369ab |
CFI on arm64 series for v5.13-rc1
- Clean up list_sort prototypes (Sami Tolvanen) - Introduce CONFIG_CFI_CLANG for arm64 (Sami Tolvanen) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmCHCR8ACgkQiXL039xt wCZyFQ//fnUZaXR2K354zDyW6CJljMf+d94RF6rH+J6eMTH2/HXa5v0iJokwABLf ussP6qF4k5wtmI22Gm9A5Zc3e4iiry5pC0jOdk0mk4gzWwFN9MdgNxJZIGA3xqhS bsBK4AGrVKjtZl48G1/ZxJuNDeJhVp6GNK2n6/Gl4rZF6R7D/Upz0XelyJRdDpcM HIGma7jZl6xfGU0mdWCzpOGK1zdMca1WVs7A4YuurSbLn5PZJrcNVWLouDqt/Si2 AduSri1gyPClicgvqWjMOzhUpuw/nJtBLRl1x1EsWk/KSZ1/uNVjlewfzdN4fZrr zbtFr2gLubYLK6JOX7/LqoHlOTgE3tYLL+WIVN75DsOGZBKgHhmebTmWLyqzV0SL oqcyM5d3ucC6msdtAK5Fv4MSp8rpjqlK1Ha4SGRT6kC2wut7AhZ3KD7eyRIz8mV9 Sa9mhignGFJnTEUp+LSbYdrAudgSKxB40WyXPmswAXX4VJFRD4ONrrcAON/SzkUT Hw/JdFRCKkJjgwNQjIQoZcUNMTbFz2PlNIEnjJWm38YImQKQlCb2mXaZKCwBkf45 aheCZk17eKoxTCXFMd+KxlyNEtS2yBfq/PpZgvw7GW/pfFbWUg1+2O41LnihIe5v zu0hN1wNCQqgfxiMZqX1OTb9C/2vybzGsXILt+9nppjZ8EBU7iU= =wU6U -----END PGP SIGNATURE----- Merge tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull CFI on arm64 support from Kees Cook: "This builds on last cycle's LTO work, and allows the arm64 kernels to be built with Clang's Control Flow Integrity feature. This feature has happily lived in Android kernels for almost 3 years[1], so I'm excited to have it ready for upstream. The wide diffstat is mainly due to the treewide fixing of mismatched list_sort prototypes. Other things in core kernel are to address various CFI corner cases. The largest code portion is the CFI runtime implementation itself (which will be shared by all architectures implementing support for CFI). The arm64 pieces are Acked by arm64 maintainers rather than coming through the arm64 tree since carrying this tree over there was going to be awkward. CFI support for x86 is still under development, but is pretty close. There are a handful of corner cases on x86 that need some improvements to Clang and objtool, but otherwise works well. Summary: - Clean up list_sort prototypes (Sami Tolvanen) - Introduce CONFIG_CFI_CLANG for arm64 (Sami Tolvanen)" * tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: arm64: allow CONFIG_CFI_CLANG to be selected KVM: arm64: Disable CFI for nVHE arm64: ftrace: use function_nocfi for ftrace_call arm64: add __nocfi to __apply_alternatives arm64: add __nocfi to functions that jump to a physical address arm64: use function_nocfi with __pa_symbol arm64: implement function_nocfi psci: use function_nocfi for cpu_resume lkdtm: use function_nocfi treewide: Change list_sort to use const pointers bpf: disable CFI in dispatcher functions kallsyms: strip ThinLTO hashes from static functions kthread: use WARN_ON_FUNCTION_MISMATCH workqueue: use WARN_ON_FUNCTION_MISMATCH module: ensure __cfi_check alignment mm: add generic function_nocfi macro cfi: add __cficanonical add support for Clang CFI |
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Linus Torvalds
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7e4910b9ac |
seccomp updates for v5.13-rc1
- Fix "cacheable" typo in comments (Cui GaoSheng) - Fix CONFIG for /proc/$pid/status Seccomp_filters (Kenta.Tada@sony.com) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmCHBe0ACgkQiXL039xt wCadDA//cy6LXlzJ78tRy1Zj4/iRlvfLGQ6rNuhoWkm9nuLOTJlzmb9lPxLFo1lo N4FDuXE0daPvmgy/XVu9wBKDZsgTlegzikGARfQmeHJ7Wj1H8ibz1OJPd1o60p4Y pfeImxefoNKxx7IxnNFDMLHgVi+CtnOZklwlj+bobIWjzclNB2EacumnyJlPuboW 4ZHBSkG1roLkBB4Q10fI7OHV8lSuQp/IyrAypLybydJ0xiZgvGD3NPOA4N8KH8nR A0kbA953Rld/PFzw5inRqepyPZKtT07LJyfl1ff60OtKOHkVBXPv6pYrdgWs0A9y XZxdHjVV/MHLvcK9dBoZZGi0/907fvcEgtMacaRekevD5sqiqtNOH5B5rQsMwtXs s/Kvg1KgmVJBQwFcMRuAfXqnnPy2672XvDU5/uptVbhpOIcIVeHtGvygPkiobuuO V1sE+huGCw+xnfRIOOmytRTpkHMlIS9ev1ApfXtuUtbXbM0W1G6H7adc0KE4bApm D/fpv97myH42r/UghOL5EHVaLcnw8embVr/ij4WpMiC1TrhWy0XU27oJisG6xRw6 A2Q4ybO3VM85LgteeQg10BZFmnuwfHMRJPBL4TOhNSs5GBx5EmkEFByozvMst5xR W/GIDn7g7jy1H0wuQOQ7NCgU5+RDDslCOjCIJdSipwpsTc65QCQ= =m4xO -----END PGP SIGNATURE----- Merge tag 'seccomp-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp updates from Kees Cook: - Fix "cacheable" typo in comments (Cui GaoSheng) - Fix CONFIG for /proc/$pid/status Seccomp_filters (Kenta.Tada@sony.com) * tag 'seccomp-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: Fix "cacheable" typo in comments seccomp: Fix CONFIG tests for Seccomp_filters |
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Linus Torvalds
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5469f160e6 |
Power management updates for 5.13-rc1
- Add idle states table for IceLake-D to the intel_idle driver and
update IceLake-X C6 data in it (Artem Bityutskiy).
- Fix the C7 idle state on Tegra114 in the tegra cpuidle driver and
drop the unused do_idle() firmware call from it (Dmitry Osipenko).
- Fix cpuidle-qcom-spm Kconfig entry (He Ying).
- Fix handling of possible negative tick_nohz_get_next_hrtimer()
return values of in cpuidle governors (Rafael Wysocki).
- Add support for frequency-invariance to the ACPI CPPC cpufreq
driver and update the frequency-invariance engine (FIE) to use it
as needed (Viresh Kumar).
- Simplify the default delay_us setting in the ACPI CPPC cpufreq
driver (Tom Saeger).
- Clean up frequency-related computations in the intel_pstate
cpufreq driver (Rafael Wysocki).
- Fix TBG parent setting for load levels in the armada-37xx
cpufreq driver and drop the CPU PM clock .set_parent method for
armada-37xx (Marek Behún).
- Fix multiple issues in the armada-37xx cpufreq driver (Pali Rohár).
- Fix handling of dev_pm_opp_of_cpumask_add_table() return values
in cpufreq-dt to take the -EPROBE_DEFER one into acconut as
appropriate (Quanyang Wang).
- Fix format string in ia64-acpi-cpufreq (Sergei Trofimovich).
- Drop the unused for_each_policy() macro from cpufreq (Shaokun
Zhang).
- Simplify computations in the schedutil cpufreq governor to avoid
unnecessary overhead (Yue Hu).
- Fix typos in the s5pv210 cpufreq driver (Bhaskar Chowdhury).
- Fix cpufreq documentation links in Kconfig (Alexander Monakov).
- Fix PCI device power state handling in pci_enable_device_flags()
to avoid issuse in some cases when the device depends on an ACPI
power resource (Rafael Wysocki).
- Add missing documentation of pm_runtime_resume_and_get() (Alan
Stern).
- Add missing static inline stub for pm_runtime_has_no_callbacks()
to pm_runtime.h and drop the unused try_to_freeze_nowarn()
definition (YueHaibing).
- Drop duplicate struct device declaration from pm.h and fix a
structure type declaration in intel_rapl.h (Wan Jiabing).
- Use dev_set_name() instead of an open-coded equivalent of it in
the wakeup sources code and drop a redundant local variable
initialization from it (Andy Shevchenko, Colin Ian King).
- Use crc32 instead of md5 for e820 memory map integrity check
during resume from hibernation on x86 (Chris von Recklinghausen).
- Fix typos in comments in the system-wide and hibernation support
code (Lu Jialin).
- Modify the generic power domains (genpd) code to avoid resuming
devices in the "prepare" phase of system-wide suspend and
hibernation (Ulf Hansson).
- Add Hygon Fam18h RAPL support to the intel_rapl power capping
driver (Pu Wen).
- Add MAINTAINERS entry for the dynamic thermal power management
(DTPM) code (Daniel Lezcano).
- Add devm variants of operating performance points (OPP) API
functions and switch over some users of the OPP framework to
the new resource-managed API (Yangtao Li and Dmitry Osipenko).
- Update devfreq core:
* Register devfreq devices as cooling devices on demand (Daniel
Lezcano).
* Add missing unlock opeation in devfreq_add_device() (Lukasz
Luba).
* Use the next frequency as resume_freq instead of the previous
frequency when using the opp-suspend property (Dong Aisheng).
* Check get_dev_status in devfreq_update_stats() (Dong Aisheng).
* Fix set_freq path for the userspace governor in Kconfig (Dong
Aisheng).
* Remove invalid description of get_target_freq() (Dong Aisheng).
- Update devfreq drivers:
* imx8m-ddrc: Remove imx8m_ddrc_get_dev_status() and unneeded
of_match_ptr() (Dong Aisheng, Fabio Estevam).
* rk3399_dmc: dt-bindings: Add rockchip,pmu phandle and drop
references to undefined symbols (Enric Balletbo i Serra, Gaël
PORTAY).
* rk3399_dmc: Use dev_err_probe() to simplify the code (Krzysztof
Kozlowski).
* imx-bus: Remove unneeded of_match_ptr() (Fabio Estevam).
- Fix kernel-doc warnings in three places (Pierre-Louis Bossart).
- Fix typo in the pm-graph utility code (Ricardo Ribalda).
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Merge tag 'pm-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add some new hardware support (for example, IceLake-D idle
states in intel_idle), fix some issues (for example, the handling of
negative "sleep length" values in cpuidle governors), add new
functionality to the existing drivers (for example, scale-invariance
support in the ACPI CPPC cpufreq driver) and clean up code all over.
Specifics:
- Add idle states table for IceLake-D to the intel_idle driver and
update IceLake-X C6 data in it (Artem Bityutskiy).
- Fix the C7 idle state on Tegra114 in the tegra cpuidle driver and
drop the unused do_idle() firmware call from it (Dmitry Osipenko).
- Fix cpuidle-qcom-spm Kconfig entry (He Ying).
- Fix handling of possible negative tick_nohz_get_next_hrtimer()
return values of in cpuidle governors (Rafael Wysocki).
- Add support for frequency-invariance to the ACPI CPPC cpufreq
driver and update the frequency-invariance engine (FIE) to use it
as needed (Viresh Kumar).
- Simplify the default delay_us setting in the ACPI CPPC cpufreq
driver (Tom Saeger).
- Clean up frequency-related computations in the intel_pstate cpufreq
driver (Rafael Wysocki).
- Fix TBG parent setting for load levels in the armada-37xx cpufreq
driver and drop the CPU PM clock .set_parent method for armada-37xx
(Marek Behún).
- Fix multiple issues in the armada-37xx cpufreq driver (Pali Rohár).
- Fix handling of dev_pm_opp_of_cpumask_add_table() return values in
cpufreq-dt to take the -EPROBE_DEFER one into acconut as
appropriate (Quanyang Wang).
- Fix format string in ia64-acpi-cpufreq (Sergei Trofimovich).
- Drop the unused for_each_policy() macro from cpufreq (Shaokun
Zhang).
- Simplify computations in the schedutil cpufreq governor to avoid
unnecessary overhead (Yue Hu).
- Fix typos in the s5pv210 cpufreq driver (Bhaskar Chowdhury).
- Fix cpufreq documentation links in Kconfig (Alexander Monakov).
- Fix PCI device power state handling in pci_enable_device_flags() to
avoid issuse in some cases when the device depends on an ACPI power
resource (Rafael Wysocki).
- Add missing documentation of pm_runtime_resume_and_get() (Alan
Stern).
- Add missing static inline stub for pm_runtime_has_no_callbacks() to
pm_runtime.h and drop the unused try_to_freeze_nowarn() definition
(YueHaibing).
- Drop duplicate struct device declaration from pm.h and fix a
structure type declaration in intel_rapl.h (Wan Jiabing).
- Use dev_set_name() instead of an open-coded equivalent of it in the
wakeup sources code and drop a redundant local variable
initialization from it (Andy Shevchenko, Colin Ian King).
- Use crc32 instead of md5 for e820 memory map integrity check during
resume from hibernation on x86 (Chris von Recklinghausen).
- Fix typos in comments in the system-wide and hibernation support
code (Lu Jialin).
- Modify the generic power domains (genpd) code to avoid resuming
devices in the "prepare" phase of system-wide suspend and
hibernation (Ulf Hansson).
- Add Hygon Fam18h RAPL support to the intel_rapl power capping
driver (Pu Wen).
- Add MAINTAINERS entry for the dynamic thermal power management
(DTPM) code (Daniel Lezcano).
- Add devm variants of operating performance points (OPP) API
functions and switch over some users of the OPP framework to the
new resource-managed API (Yangtao Li and Dmitry Osipenko).
- Update devfreq core:
* Register devfreq devices as cooling devices on demand (Daniel
Lezcano).
* Add missing unlock opeation in devfreq_add_device() (Lukasz
Luba).
* Use the next frequency as resume_freq instead of the previous
frequency when using the opp-suspend property (Dong Aisheng).
* Check get_dev_status in devfreq_update_stats() (Dong Aisheng).
* Fix set_freq path for the userspace governor in Kconfig (Dong
Aisheng).
* Remove invalid description of get_target_freq() (Dong Aisheng).
- Update devfreq drivers:
* imx8m-ddrc: Remove imx8m_ddrc_get_dev_status() and unneeded
of_match_ptr() (Dong Aisheng, Fabio Estevam).
* rk3399_dmc: dt-bindings: Add rockchip,pmu phandle and drop
references to undefined symbols (Enric Balletbo i Serra, Gaël
PORTAY).
* rk3399_dmc: Use dev_err_probe() to simplify the code (Krzysztof
Kozlowski).
* imx-bus: Remove unneeded of_match_ptr() (Fabio Estevam).
- Fix kernel-doc warnings in three places (Pierre-Louis Bossart).
- Fix typo in the pm-graph utility code (Ricardo Ribalda)"
* tag 'pm-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
PM: wakeup: remove redundant assignment to variable retval
PM: hibernate: x86: Use crc32 instead of md5 for hibernation e820 integrity check
cpufreq: Kconfig: fix documentation links
PM: wakeup: use dev_set_name() directly
PM: runtime: Add documentation for pm_runtime_resume_and_get()
cpufreq: intel_pstate: Simplify intel_pstate_update_perf_limits()
cpufreq: armada-37xx: Fix module unloading
cpufreq: armada-37xx: Remove cur_frequency variable
cpufreq: armada-37xx: Fix determining base CPU frequency
cpufreq: armada-37xx: Fix driver cleanup when registration failed
clk: mvebu: armada-37xx-periph: Fix workaround for switching from L1 to L0
clk: mvebu: armada-37xx-periph: Fix switching CPU freq from 250 Mhz to 1 GHz
cpufreq: armada-37xx: Fix the AVS value for load L1
clk: mvebu: armada-37xx-periph: remove .set_parent method for CPU PM clock
cpufreq: armada-37xx: Fix setting TBG parent for load levels
cpuidle: Fix ARM_QCOM_SPM_CPUIDLE configuration
cpuidle: tegra: Remove do_idle firmware call
cpuidle: tegra: Fix C7 idling state on Tegra114
PM: sleep: fix typos in comments
cpufreq: Remove unused for_each_policy macro
...
|
||
|
Linus Torvalds
|
31a24ae89c |
arm64 updates for 5.13:
- MTE asynchronous support for KASan. Previously only synchronous
(slower) mode was supported. Asynchronous is faster but does not allow
precise identification of the illegal access.
- Run kernel mode SIMD with softirqs disabled. This allows using NEON in
softirq context for crypto performance improvements. The conditional
yield support is modified to take softirqs into account and reduce the
latency.
- Preparatory patches for Apple M1: handle CPUs that only have the VHE
mode available (host kernel running at EL2), add FIQ support.
- arm64 perf updates: support for HiSilicon PA and SLLC PMU drivers, new
functions for the HiSilicon HHA and L3C PMU, cleanups.
- Re-introduce support for execute-only user permissions but only when
the EPAN (Enhanced Privileged Access Never) architecture feature is
available.
- Disable fine-grained traps at boot and improve the documented boot
requirements.
- Support CONFIG_KASAN_VMALLOC on arm64 (only with KASAN_GENERIC).
- Add hierarchical eXecute Never permissions for all page tables.
- Add arm64 prctl(PR_PAC_{SET,GET}_ENABLED_KEYS) allowing user programs
to control which PAC keys are enabled in a particular task.
- arm64 kselftests for BTI and some improvements to the MTE tests.
- Minor improvements to the compat vdso and sigpage.
- Miscellaneous cleanups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- MTE asynchronous support for KASan. Previously only synchronous
(slower) mode was supported. Asynchronous is faster but does not
allow precise identification of the illegal access.
- Run kernel mode SIMD with softirqs disabled. This allows using NEON
in softirq context for crypto performance improvements. The
conditional yield support is modified to take softirqs into account
and reduce the latency.
- Preparatory patches for Apple M1: handle CPUs that only have the VHE
mode available (host kernel running at EL2), add FIQ support.
- arm64 perf updates: support for HiSilicon PA and SLLC PMU drivers,
new functions for the HiSilicon HHA and L3C PMU, cleanups.
- Re-introduce support for execute-only user permissions but only when
the EPAN (Enhanced Privileged Access Never) architecture feature is
available.
- Disable fine-grained traps at boot and improve the documented boot
requirements.
- Support CONFIG_KASAN_VMALLOC on arm64 (only with KASAN_GENERIC).
- Add hierarchical eXecute Never permissions for all page tables.
- Add arm64 prctl(PR_PAC_{SET,GET}_ENABLED_KEYS) allowing user programs
to control which PAC keys are enabled in a particular task.
- arm64 kselftests for BTI and some improvements to the MTE tests.
- Minor improvements to the compat vdso and sigpage.
- Miscellaneous cleanups.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (86 commits)
arm64/sve: Add compile time checks for SVE hooks in generic functions
arm64/kernel/probes: Use BUG_ON instead of if condition followed by BUG.
arm64: pac: Optimize kernel entry/exit key installation code paths
arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)
arm64: mte: make the per-task SCTLR_EL1 field usable elsewhere
arm64/sve: Remove redundant system_supports_sve() tests
arm64: fpsimd: run kernel mode NEON with softirqs disabled
arm64: assembler: introduce wxN aliases for wN registers
arm64: assembler: remove conditional NEON yield macros
kasan, arm64: tests supports for HW_TAGS async mode
arm64: mte: Report async tag faults before suspend
arm64: mte: Enable async tag check fault
arm64: mte: Conditionally compile mte_enable_kernel_*()
arm64: mte: Enable TCO in functions that can read beyond buffer limits
kasan: Add report for async mode
arm64: mte: Drop arch_enable_tagging()
kasan: Add KASAN mode kernel parameter
arm64: mte: Add asynchronous mode support
arm64: Get rid of CONFIG_ARM64_VHE
arm64: Cope with CPUs stuck in VHE mode
...
|
||
|
Linus Torvalds
|
87dcebff92 |
The time and timers updates contain:
Core changes:
- Allow runtime power management when the clocksource is changed.
- A correctness fix for clock_adjtime32() so that the return value
on success is not overwritten by the result of the copy to user.
- Allow late installment of broadcast clockevent devices which was
broken because nothing switched them over to oneshot mode. This went
unnoticed so far because clockevent devices used to be built in, but
now people started to make them modular.
- Debugfs related simplifications
- Small cleanups and improvements here and there
Driver changes:
- The usual set of device tree binding updates for a wide range
of drivers/devices.
- The usual updates and improvements for drivers all over the place but
nothing outstanding.
- No new clocksource/event drivers. They'll come back next time.
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Merge tag 'timers-core-2021-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"The time and timers updates contain:
Core changes:
- Allow runtime power management when the clocksource is changed.
- A correctness fix for clock_adjtime32() so that the return value on
success is not overwritten by the result of the copy to user.
- Allow late installment of broadcast clockevent devices which was
broken because nothing switched them over to oneshot mode. This
went unnoticed so far because clockevent devices used to be built
in, but now people started to make them modular.
- Debugfs related simplifications
- Small cleanups and improvements here and there
Driver changes:
- The usual set of device tree binding updates for a wide range of
drivers/devices.
- The usual updates and improvements for drivers all over the place
but nothing outstanding.
- No new clocksource/event drivers. They'll come back next time"
* tag 'timers-core-2021-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
posix-timers: Preserve return value in clock_adjtime32()
tick/broadcast: Allow late registered device to enter oneshot mode
tick: Use tick_check_replacement() instead of open coding it
time/timecounter: Mark 1st argument of timecounter_cyc2time() as const
dt-bindings: timer: nuvoton,npcm7xx: Add wpcm450-timer
clocksource/drivers/arm_arch_timer: Add __ro_after_init and __init
clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940
clocksource/drivers/timer-ti-dm: Prepare to handle dra7 timer wrap issue
clocksource/drivers/dw_apb_timer_of: Add handling for potential memory leak
clocksource/drivers/npcm: Add support for WPCM450
clocksource/drivers/sh_cmt: Don't use CMTOUT_IE with R-Car Gen2/3
clocksource/drivers/pistachio: Fix trivial typo
clocksource/drivers/ingenic_ost: Fix return value check in ingenic_ost_probe()
clocksource/drivers/timer-ti-dm: Add missing set_state_oneshot_stopped
clocksource/drivers/timer-ti-dm: Fix posted mode status check order
dt-bindings: timer: renesas,cmt: Document R8A77961
dt-bindings: timer: renesas,cmt: Add r8a779a0 CMT support
clocksource/drivers/ingenic-ost: Add support for the JZ4760B
clocksource/drivers/ingenic: Add support for the JZ4760
dt-bindings: timer: ingenic: Add compatible strings for JZ4760(B)
...
|
||
|
Linus Torvalds
|
91552ab8ff |
The usual updates from the irq departement:
Core changes:
- Provide IRQF_NO_AUTOEN as a flag for request*_irq() so drivers can be
cleaned up which either use a seperate mechanism to prevent auto-enable
at request time or have a racy mechanism which disables the interrupt
right after request.
- Get rid of the last usage of irq_create_identity_mapping() and remove
the interface.
- An overhaul of tasklet_disable(). Most usage sites of tasklet_disable()
are in task context and usually in cleanup, teardown code pathes.
tasklet_disable() spinwaits for a tasklet which is currently executed.
That's not only a problem for PREEMPT_RT where this can lead to a live
lock when the disabling task preempts the softirq thread. It's also
problematic in context of virtualization when the vCPU which runs the
tasklet is scheduled out and the disabling code has to spin wait until
it's scheduled back in. Though there are a few code pathes which invoke
tasklet_disable() from non-sleepable context. For these a new disable
variant which still spinwaits is provided which allows to switch
tasklet_disable() to a sleep wait mechanism. For the atomic use cases
this does not solve the live lock issue on PREEMPT_RT. That is mitigated
by blocking on the RT specific softirq lock.
- The PREEMPT_RT specific implementation of softirq processing and
local_bh_disable/enable().
On RT enabled kernels soft interrupt processing happens always in task
context and all interrupt handlers, which are not explicitly marked to
be invoked in hard interrupt context are forced into task context as
well. This allows to protect against softirq processing with a per
CPU lock, which in turn allows to make BH disabled regions preemptible.
Most of the softirq handling code is still shared. The RT/non-RT
specific differences are addressed with a set of inline functions which
provide the context specific functionality. The local_bh_disable() /
local_bh_enable() mechanism are obviously seperate.
- The usual set of small improvements and cleanups
Driver changes:
- New drivers for Nuvoton WPCM450 and DT 79rc3243x interrupt controllers
- Extended functionality for MStar, STM32 and SC7280 irq chips
- Enhanced robustness for ARM GICv3/4.1 drivers
- The usual set of cleanups and improvements all over the place
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Merge tag 'irq-core-2021-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"The usual updates from the irq departement:
Core changes:
- Provide IRQF_NO_AUTOEN as a flag for request*_irq() so drivers can
be cleaned up which either use a seperate mechanism to prevent
auto-enable at request time or have a racy mechanism which disables
the interrupt right after request.
- Get rid of the last usage of irq_create_identity_mapping() and
remove the interface.
- An overhaul of tasklet_disable().
Most usage sites of tasklet_disable() are in task context and
usually in cleanup, teardown code pathes. tasklet_disable()
spinwaits for a tasklet which is currently executed. That's not
only a problem for PREEMPT_RT where this can lead to a live lock
when the disabling task preempts the softirq thread. It's also
problematic in context of virtualization when the vCPU which runs
the tasklet is scheduled out and the disabling code has to spin
wait until it's scheduled back in.
There are a few code pathes which invoke tasklet_disable() from
non-sleepable context. For these a new disable variant which still
spinwaits is provided which allows to switch tasklet_disable() to a
sleep wait mechanism. For the atomic use cases this does not solve
the live lock issue on PREEMPT_RT. That is mitigated by blocking on
the RT specific softirq lock.
- The PREEMPT_RT specific implementation of softirq processing and
local_bh_disable/enable().
On RT enabled kernels soft interrupt processing happens always in
task context and all interrupt handlers, which are not explicitly
marked to be invoked in hard interrupt context are forced into task
context as well. This allows to protect against softirq processing
with a per CPU lock, which in turn allows to make BH disabled
regions preemptible.
Most of the softirq handling code is still shared. The RT/non-RT
specific differences are addressed with a set of inline functions
which provide the context specific functionality. The
local_bh_disable() / local_bh_enable() mechanism are obviously
seperate.
- The usual set of small improvements and cleanups
Driver changes:
- New drivers for Nuvoton WPCM450 and DT 79rc3243x interrupt
controllers
- Extended functionality for MStar, STM32 and SC7280 irq chips
- Enhanced robustness for ARM GICv3/4.1 drivers
- The usual set of cleanups and improvements all over the place"
* tag 'irq-core-2021-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
irqchip/xilinx: Expose Kconfig option for Zynq/ZynqMP
irqchip/gic-v3: Do not enable irqs when handling spurious interrups
dt-bindings: interrupt-controller: Add IDT 79RC3243x Interrupt Controller
irqchip: Add support for IDT 79rc3243x interrupt controller
irqdomain: Drop references to recusive irqdomain setup
irqdomain: Get rid of irq_create_strict_mappings()
irqchip/jcore-aic: Kill use of irq_create_strict_mappings()
ARM: PXA: Kill use of irq_create_strict_mappings()
irqchip/gic-v4.1: Disable vSGI upon (GIC CPUIF < v4.1) detection
irqchip/tb10x: Use 'fallthrough' to eliminate a warning
genirq: Reduce irqdebug cacheline bouncing
kernel: Initialize cpumask before parsing
irqchip/wpcm450: Drop COMPILE_TEST
irqchip/irq-mst: Support polarity configuration
irqchip: Add driver for WPCM450 interrupt controller
dt-bindings: interrupt-controller: Add nuvoton, wpcm450-aic
dt-bindings: qcom,pdc: Add compatible for sc7280
irqchip/stm32: Add usart instances exti direct event support
irqchip/gic-v3: Fix OF_BAD_ADDR error handling
irqchip/sifive-plic: Mark two global variables __ro_after_init
...
|
||
|
Linus Torvalds
|
3b671bf4a7 |
A trivial cleanup of typo fixes.
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||
|
Linus Torvalds
|
ffc766b31e |
This is an irregular pull request for sending a lockdep patch.
Peter Zijlstra asked us to find bad annotation that blows up the lockdep storage [1][2][3] but we could not find such annotation [4][5], and Peter cannot give us feedback any more [6]. Since we tested this patch on linux-next.git without problems, and keeping this problem unresolved discourages kernel testing which is more painful, I'm sending this patch without forever waiting for response from Peter. [1] https://lkml.kernel.org/r/20200916115057.GO2674@hirez.programming.kicks-ass.net [2] https://lkml.kernel.org/r/20201118142357.GW3121392@hirez.programming.kicks-ass.net [3] https://lkml.kernel.org/r/20201118151038.GX3121392@hirez.programming.kicks-ass.net [4] https://lkml.kernel.org/r/CACT4Y+asqRbjaN9ras=P5DcxKgzsnV0fvV0tYb2VkT+P00pFvQ@mail.gmail.com [5] https://lkml.kernel.org/r/4b89985e-99f9-18bc-0bf1-c883127dc70c@i-love.sakura.ne.jp [6] https://lkml.kernel.org/r/CACT4Y+YnHFV1p5mbhby2nyOaNTy8c_yoVk86z5avo14KWs0s1A@mail.gmail.com kernel/locking/lockdep.c | 2 - kernel/locking/lockdep_internals.h | 8 +++---- lib/Kconfig.debug | 40 +++++++++++++++++++++++++++++++++++++ 3 files changed, 45 insertions(+), 5 deletions(-) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJghetlAAoJEEJfEo0MZPUqMaEP/i0pkfOyKBdUe61Y9g0A2TmN h5I59KiSsgmx7dK90Q2GP1kUQE9ROCiqIz9qHzCzWfk9jljgFgRfECBKHqH+K7Tq AlQQkJmAiwpg+1scSkhoxBOrSGXHe2xB4qvazvw7tAAIDPjcV/pkFlNKaUtItzr2 VPr4t6Eis/MZ7Pau2xLFLX2gRn5KvpsbcL+wydrDfqlXx3pNXlBvChBxixk90HS6 0BC5pgb68pXm8Emzbp3+iloy0VuG/BHDA/vy02k5zUjMM7Zy+aGxR/cl2jvc+lWd wyRWhwbSjTUrYs3Olmjkybj15lsgl573oIptVhIIrXuvjpyY5v1IH1gkLoxJgr5d yaKSdYwyN/OPI3KireEfaSgc6IqrJ1K9gLh1Knqw4JeoJngEVEkmBwBg/izpiXoL WVlWZuLkYtOTWxpsTOiCtzv4KkFhFtE61IEAIEsvvj9oeLQJu7JUR8oW0ZQtdfXg Em0IbObS8VGW322MNmb1p9SsaYvOueWyKzImEVlCBAb2g6PUYuiAwiOw8/tvsDFr KPXCPpaqKCFtp+BG21fn6GpTqJ4GteWy6JK6C9i/xhIWmv+QRijNEmPlyYQ0YMkd a8z8rqRqexknlPCJy/9AZWfBo6kg5Dt3icrrNVKoXLVC/LNYaHQvIKsGzZaQ1Pyq W6rnMbLCRD199sqoEFrH =E7U/ -----END PGP SIGNATURE----- Merge tag 'tomoyo-pr-20210426' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1 Pull lockdep capacity limit updates from Tetsuo Handa: "syzbot is occasionally reporting that fuzz testing is terminated due to hitting upper limits lockdep can track. Analysis via /proc/lockdep* did not show any obvious culprits, allow tuning tracing capacity constants" * tag 'tomoyo-pr-20210426' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1: lockdep: Allow tuning tracing capacity constants. |
||
|
Rafael J. Wysocki
|
bf0cc8360e |
Merge branches 'pm-core', 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap'
* pm-core: PM: runtime: Add documentation for pm_runtime_resume_and_get() PM: runtime: Replace inline function pm_runtime_callbacks_present() PM: core: Remove duplicate declaration from header file * pm-pci: PCI: PM: Do not read power state in pci_enable_device_flags() * pm-sleep: PM: wakeup: remove redundant assignment to variable retval PM: hibernate: x86: Use crc32 instead of md5 for hibernation e820 integrity check PM: wakeup: use dev_set_name() directly PM: sleep: fix typos in comments freezer: Remove unused inline function try_to_freeze_nowarn() * pm-domains: PM: domains: Don't runtime resume devices at genpd_prepare() * powercap: powercap: RAPL: Fix struct declaration in header file MAINTAINERS: Add DTPM subsystem maintainer powercap: Add Hygon Fam18h RAPL support |
||
|
Rafael J. Wysocki
|
dd9f2ae924 |
Merge branch 'pm-cpufreq'
* pm-cpufreq: (22 commits) cpufreq: Kconfig: fix documentation links cpufreq: intel_pstate: Simplify intel_pstate_update_perf_limits() cpufreq: armada-37xx: Fix module unloading cpufreq: armada-37xx: Remove cur_frequency variable cpufreq: armada-37xx: Fix determining base CPU frequency cpufreq: armada-37xx: Fix driver cleanup when registration failed clk: mvebu: armada-37xx-periph: Fix workaround for switching from L1 to L0 clk: mvebu: armada-37xx-periph: Fix switching CPU freq from 250 Mhz to 1 GHz cpufreq: armada-37xx: Fix the AVS value for load L1 clk: mvebu: armada-37xx-periph: remove .set_parent method for CPU PM clock cpufreq: armada-37xx: Fix setting TBG parent for load levels cpufreq: Remove unused for_each_policy macro cpufreq: dt: dev_pm_opp_of_cpumask_add_table() may return -EPROBE_DEFER cpufreq: intel_pstate: Clean up frequency computations cpufreq: cppc: simplify default delay_us setting cpufreq: Rudimentary typos fix in the file s5pv210-cpufreq.c cpufreq: CPPC: Add support for frequency invariance ia64: fix format string for ia64-acpi-cpu-freq cpufreq: schedutil: Call sugov_update_next_freq() before check to fast_switch_enabled arch_topology: Export arch_freq_scale and helpers ... |
||
|
Linus Torvalds
|
0146da0d4c |
- Fix ordering in the queued writer lock's slowpath.
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||
|
Linus Torvalds
|
682b26bd80 |
- Fix a typo in a macro ifdeffery.
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||
|
Thomas Gleixner
|
765822e156 |
irqchip updates for Linux 5.13
New HW support:
- New driver for the Nuvoton WPCM450 interrupt controller
- New driver for the IDT 79rc3243x interrupt controller
- Add support for interrupt trigger configuration to the MStar irqchip
- Add more external interrupt support to the STM32 irqchip
- Add new compatible strings for QCOM SC7280 to the qcom-pdc binding
Fixes and cleanups:
- Drop irq_create_strict_mappings() and irq_create_identity_mapping()
from the irqdomain API, with cleanups in a couple of drivers
- Fix nested NMI issue with spurious interrupts on GICv3
- Don't allow GICv4.1 vSGIs when the CPU doesn't support them
- Various cleanups and minor fixes
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Merge tag 'irqchip-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip and irqdomain updates from Marc Zyngier:
New HW support:
- New driver for the Nuvoton WPCM450 interrupt controller
- New driver for the IDT 79rc3243x interrupt controller
- Add support for interrupt trigger configuration to the MStar irqchip
- Add more external interrupt support to the STM32 irqchip
- Add new compatible strings for QCOM SC7280 to the qcom-pdc binding
Fixes and cleanups:
- Drop irq_create_strict_mappings() and irq_create_identity_mapping()
from the irqdomain API, with cleanups in a couple of drivers
- Fix nested NMI issue with spurious interrupts on GICv3
- Don't allow GICv4.1 vSGIs when the CPU doesn't support them
- Various cleanups and minor fixes
Link: https://lore.kernel.org/r/20210424094640.1731920-1-maz@kernel.org
|
||
|
Marc Zyngier
|
817aad5d08 |
irqdomain: Drop references to recusive irqdomain setup
It was never completely implemented, and was removed a long time ago. Adjust the documentation to reflect this. Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210406093557.1073423-8-maz@kernel.org |
||
|
Marc Zyngier
|
1a0b05e435 |
irqdomain: Get rid of irq_create_strict_mappings()
No user of this helper is left, remove it. Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Linus Torvalds
|
1fe5501ba1 |
tracing: Fix tp_printk command line and trace events
Masami added a wrapper to be able to unhash trace event pointers as they are only read by root anyway, and they can also be extracted by the raw trace data buffers. But this wrapper utilized the iterator to have a temporary buffer to manipulate the text with. tp_printk is a kernel command line option that will send the trace output of a trace event to the console on boot up (useful when the system crashes before finishing the boot). But the code used the same wrapper that Masami added, and its iterator did not have a buffer, and this caused the system to crash. Have the wrapper just print the trace event normally if the iterator has no temporary buffer. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYH8exRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qlvdAP436vts0GOM8UM0y9IAPNrSG5OSvjNe v5C5UOpnIxjlrgEArBtLLDaByLSBDQj+Vx0LmDW5uMOps49mo3A35TcIEAM= =GfL1 -----END PGP SIGNATURE----- Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Fix tp_printk command line and trace events Masami added a wrapper to be able to unhash trace event pointers as they are only read by root anyway, and they can also be extracted by the raw trace data buffers. But this wrapper utilized the iterator to have a temporary buffer to manipulate the text with. tp_printk is a kernel command line option that will send the trace output of a trace event to the console on boot up (useful when the system crashes before finishing the boot). But the code used the same wrapper that Masami added, and its iterator did not have a buffer, and this caused the system to crash. Have the wrapper just print the trace event normally if the iterator has no temporary buffer" * tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix checking event hash pointer logic when tp_printk is enabled |
||
|
Serge E. Hallyn
|
db2e718a47 |
capabilities: require CAP_SETFCAP to map uid 0
cap_setfcap is required to create file capabilities. Since commit |
||
|
Steven Rostedt (VMware)
|
0e1e71d349 |
tracing: Fix checking event hash pointer logic when tp_printk is enabled
Pointers in events that are printed are unhashed if the flags allow it,
and the logic to do so is called before processing the event output from
the raw ring buffer. In most cases, this is done when a user reads one of
the trace files.
But if tp_printk is added on the kernel command line, this logic is done
for trace events when they are triggered, and their output goes out via
printk. The unhash logic (and even the validation of the output) did not
support the tp_printk output, and would crash.
Link: https://lore.kernel.org/linux-tegra/9835d9f1-8d3a-3440-c53f-516c2606ad07@nvidia.com/
Fixes:
|
||
|
Linus Torvalds
|
7af0814097 |
Revert "gcov: clang: fix clang-11+ build"
This reverts commit
|
||
|
Zhouyi Zhou
|
0c89d87d1d |
preempt/dynamic: Fix typo in macro conditional statement
Commit |
||
|
Linus Torvalds
|
88a5af9439 |
Networking fixes for 5.12-rc8, including fixes from netfilter,
and bpf. BPF verifier changes stand out, otherwise things have
slowed down.
Current release - regressions:
- gro: ensure frag0 meets IP header alignment
- Revert "net: stmmac: re-init rx buffers when mac resume back"
- ethernet: macb: fix the restore of cmp registers
Previous releases - regressions:
- ixgbe: Fix NULL pointer dereference in ethtool loopback test
- ixgbe: fix unbalanced device enable/disable in suspend/resume
- phy: marvell: fix detection of PHY on Topaz switches
- make tcp_allowed_congestion_control readonly in non-init netns
- xen-netback: Check for hotplug-status existence before watching
Previous releases - always broken:
- bpf: mitigate a speculative oob read of up to map value size by
tightening the masking window
- sctp: fix race condition in sctp_destroy_sock
- sit, ip6_tunnel: Unregister catch-all devices
- netfilter: nftables: clone set element expression template
- netfilter: flowtable: fix NAT IPv6 offload mangling
- net: geneve: check skb is large enough for IPv4/IPv6 header
- netlink: don't call ->netlink_bind with table lock held
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.12-rc8, including fixes from netfilter, and
bpf. BPF verifier changes stand out, otherwise things have slowed
down.
Current release - regressions:
- gro: ensure frag0 meets IP header alignment
- Revert "net: stmmac: re-init rx buffers when mac resume back"
- ethernet: macb: fix the restore of cmp registers
Previous releases - regressions:
- ixgbe: Fix NULL pointer dereference in ethtool loopback test
- ixgbe: fix unbalanced device enable/disable in suspend/resume
- phy: marvell: fix detection of PHY on Topaz switches
- make tcp_allowed_congestion_control readonly in non-init netns
- xen-netback: Check for hotplug-status existence before watching
Previous releases - always broken:
- bpf: mitigate a speculative oob read of up to map value size by
tightening the masking window
- sctp: fix race condition in sctp_destroy_sock
- sit, ip6_tunnel: Unregister catch-all devices
- netfilter: nftables: clone set element expression template
- netfilter: flowtable: fix NAT IPv6 offload mangling
- net: geneve: check skb is large enough for IPv4/IPv6 header
- netlink: don't call ->netlink_bind with table lock held"
* tag 'net-5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
netlink: don't call ->netlink_bind with table lock held
MAINTAINERS: update my email
bpf: Update selftests to reflect new error states
bpf: Tighten speculative pointer arithmetic mask
bpf: Move sanitize_val_alu out of op switch
bpf: Refactor and streamline bounds check into helper
bpf: Improve verifier error messages for users
bpf: Rework ptr_limit into alu_limit and add common error path
bpf: Ensure off_reg has no mixed signed bounds for all types
bpf: Move off_reg into sanitize_ptr_alu
bpf: Use correct permission flag for mixed signed bounds arithmetic
ch_ktls: do not send snd_una update to TCB in middle
ch_ktls: tcb close causes tls connection failure
ch_ktls: fix device connection close
ch_ktls: Fix kernel panic
i40e: fix the panic when running bpf in xdpdrv mode
net/mlx5e: fix ingress_ifindex check in mlx5e_flower_parse_meta
net/mlx5e: Fix setting of RS FEC mode
net/mlx5: Fix setting of devlink traps in switchdev mode
Revert "net: stmmac: re-init rx buffers when mac resume back"
...
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Chen Jun
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2d036dfa5f |
posix-timers: Preserve return value in clock_adjtime32()
The return value on success (>= 0) is overwritten by the return value of
put_old_timex32(). That works correct in the fault case, but is wrong for
the success case where put_old_timex32() returns 0.
Just check the return value of put_old_timex32() and return -EFAULT in case
it is not zero.
[ tglx: Massage changelog ]
Fixes:
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Ali Saidi
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84a24bf8c5 |
locking/qrwlock: Fix ordering in queued_write_lock_slowpath()
While this code is executed with the wait_lock held, a reader can
acquire the lock without holding wait_lock. The writer side loops
checking the value with the atomic_cond_read_acquire(), but only truly
acquires the lock when the compare-and-exchange is completed
successfully which isn’t ordered. This exposes the window between the
acquire and the cmpxchg to an A-B-A problem which allows reads
following the lock acquisition to observe values speculatively before
the write lock is truly acquired.
We've seen a problem in epoll where the reader does a xchg while
holding the read lock, but the writer can see a value change out from
under it.
Writer | Reader
--------------------------------------------------------------------------------
ep_scan_ready_list() |
|- write_lock_irq() |
|- queued_write_lock_slowpath() |
|- atomic_cond_read_acquire() |
| read_lock_irqsave(&ep->lock, flags);
--> (observes value before unlock) | chain_epi_lockless()
| | epi->next = xchg(&ep->ovflist, epi);
| | read_unlock_irqrestore(&ep->lock, flags);
| |
| atomic_cmpxchg_relaxed() |
|-- READ_ONCE(ep->ovflist); |
A core can order the read of the ovflist ahead of the
atomic_cmpxchg_relaxed(). Switching the cmpxchg to use acquire
semantics addresses this issue at which point the atomic_cond_read can
be switched to use relaxed semantics.
Fixes:
|
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Johannes Berg
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04c53de57c |
gcov: clang: fix clang-11+ build
With clang-11+, the code is broken due to my kvmalloc() conversion (which predated the clang-11 support code) leaving one vmalloc() in place. Fix that. Link: https://lkml.kernel.org/r/20210412214210.6e1ecca9cdc5.I24459763acf0591d5e6b31c7e3a59890d802f79c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David S. Miller
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b022654296 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2021-04-17 The following pull-request contains BPF updates for your *net* tree. We've added 10 non-merge commits during the last 9 day(s) which contain a total of 8 files changed, 175 insertions(+), 111 deletions(-). The main changes are: 1) Fix a potential NULL pointer dereference in libbpf's xsk umem handling, from Ciara Loftus. 2) Mitigate a speculative oob read of up to map value size by tightening the masking window, from Daniel Borkmann. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Daniel Borkmann
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7fedb63a83 |
bpf: Tighten speculative pointer arithmetic mask
This work tightens the offset mask we use for unprivileged pointer arithmetic in order to mitigate a corner case reported by Piotr and Benedict where in the speculative domain it is possible to advance, for example, the map value pointer by up to value_size-1 out-of-bounds in order to leak kernel memory via side-channel to user space. Before this change, the computed ptr_limit for retrieve_ptr_limit() helper represents largest valid distance when moving pointer to the right or left which is then fed as aux->alu_limit to generate masking instructions against the offset register. After the change, the derived aux->alu_limit represents the largest potential value of the offset register which we mask against which is just a narrower subset of the former limit. For minimal complexity, we call sanitize_ptr_alu() from 2 observation points in adjust_ptr_min_max_vals(), that is, before and after the simulated alu operation. In the first step, we retieve the alu_state and alu_limit before the operation as well as we branch-off a verifier path and push it to the verification stack as we did before which checks the dst_reg under truncation, in other words, when the speculative domain would attempt to move the pointer out-of-bounds. In the second step, we retrieve the new alu_limit and calculate the absolute distance between both. Moreover, we commit the alu_state and final alu_limit via update_alu_sanitation_state() to the env's instruction aux data, and bail out from there if there is a mismatch due to coming from different verification paths with different states. Reported-by: Piotr Krysiuk <piotras@gmail.com> Reported-by: Benedict Schlueter <benedict.schlueter@rub.de> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Benedict Schlueter <benedict.schlueter@rub.de> |
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Daniel Borkmann
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f528819334 |
bpf: Move sanitize_val_alu out of op switch
Add a small sanitize_needed() helper function and move sanitize_val_alu() out of the main opcode switch. In upcoming work, we'll move sanitize_ptr_alu() as well out of its opcode switch so this helps to streamline both. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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073815b756 |
bpf: Refactor and streamline bounds check into helper
Move the bounds check in adjust_ptr_min_max_vals() into a small helper named sanitize_check_bounds() in order to simplify the former a bit. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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a6aaece00a |
bpf: Improve verifier error messages for users
Consolidate all error handling and provide more user-friendly error messages from sanitize_ptr_alu() and sanitize_val_alu(). Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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b658bbb844 |
bpf: Rework ptr_limit into alu_limit and add common error path
Small refactor with no semantic changes in order to consolidate the max ptr_limit boundary check. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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24c109bb15 |
bpf: Ensure off_reg has no mixed signed bounds for all types
The mixed signed bounds check really belongs into retrieve_ptr_limit()
instead of outside of it in adjust_ptr_min_max_vals(). The reason is
that this check is not tied to PTR_TO_MAP_VALUE only, but to all pointer
types that we handle in retrieve_ptr_limit() and given errors from the latter
propagate back to adjust_ptr_min_max_vals() and lead to rejection of the
program, it's a better place to reside to avoid anything slipping through
for future types. The reason why we must reject such off_reg is that we
otherwise would not be able to derive a mask, see details in
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Daniel Borkmann
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6f55b2f2a1 |
bpf: Move off_reg into sanitize_ptr_alu
Small refactor to drag off_reg into sanitize_ptr_alu(), so we later on can use off_reg for generalizing some of the checks for all pointer types. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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9601148392 |
bpf: Use correct permission flag for mixed signed bounds arithmetic
We forbid adding unknown scalars with mixed signed bounds due to the
spectre v1 masking mitigation. Hence this also needs bypass_spec_v1
flag instead of allow_ptr_leaks.
Fixes:
|
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Chunguang Xu
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ffeee417d9 |
cgroup: use tsk->in_iowait instead of delayacct_is_task_waiting_on_io()
If delayacct is disabled, then delayacct_is_task_waiting_on_io() always returns false, which causes the statistical value to be wrong. Perhaps tsk->in_iowait is better. Signed-off-by: Chunguang Xu <brookxu@tencent.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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Jindong Yue
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9c336c9935 |
tick/broadcast: Allow late registered device to enter oneshot mode
The broadcast device is switched to oneshot mode when the system switches to oneshot mode. If a broadcast clock event device is registered after the system switched to oneshot mode, it will stay in periodic mode forever. Ensure that a late registered device which is selected as broadcast device is initialized in oneshot mode when the system already uses oneshot mode. [ tglx: Massage changelog ] Signed-off-by: Jindong Yue <jindong.yue@nxp.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210331083318.21794-1-jindong.yue@nxp.com |
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Wang Wensheng
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d7840aaadd |
tick: Use tick_check_replacement() instead of open coding it
The function tick_check_replacement() is the combination of tick_check_percpu() and tick_check_preferred(), but tick_check_new_device() has the same logic open coded. Use the helper to simplify the code. [ tglx: Massage changelog ] Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210326022328.3266-1-wangwensheng4@huawei.com |
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Marc Kleine-Budde
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07ff4aed01 |
time/timecounter: Mark 1st argument of timecounter_cyc2time() as const
The timecounter is not modified in this function. Mark it as const. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210303103544.994855-1-mkl@pengutronix.de |
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Sumit Garg
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83fa2d13d6 |
kdb: Refactor env variables get/set code
Add two new kdb environment access methods as kdb_setenv() and kdb_printenv() in order to abstract out environment access code from kdb command functions. Also, replace (char *)0 with NULL as an initializer for environment variables array. Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/1612771342-16883-1-git-send-email-sumit.garg@linaro.org [daniel.thompson@linaro.org: Replaced (char *)0/NULL initializers with an array size] Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> |
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Linus Torvalds
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50987beca0 |
tracing/dynevent: Fix a memory link in dyn_event_release()
An error path exited the function before freeing the allocated "argv" variable. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYHY3LRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qigOAPwOvbUI9PQTW3hs16XHDGbgtzdzX6A7 kF7GlId5tXbZDwD/bW2gilFCjULCEPDuqsDy5EXrbZ7V7kulOfIw2e8CAQM= =HwKu -----END PGP SIGNATURE----- Merge tag 'trace-v5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Fix a memory link in dyn_event_release(). An error path exited the function before freeing the allocated 'argv' variable" * tag 'trace-v5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/dynevent: Fix a memory leak in an error handling path |
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Peter Collingbourne
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201698626f |
arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)
This change introduces a prctl that allows the user program to control which PAC keys are enabled in a particular task. The main reason why this is useful is to enable a userspace ABI that uses PAC to sign and authenticate function pointers and other pointers exposed outside of the function, while still allowing binaries conforming to the ABI to interoperate with legacy binaries that do not sign or authenticate pointers. The idea is that a dynamic loader or early startup code would issue this prctl very early after establishing that a process may load legacy binaries, but before executing any PAC instructions. This change adds a small amount of overhead to kernel entry and exit due to additional required instruction sequences. On a DragonBoard 845c (Cortex-A75) with the powersave governor, the overhead of similar instruction sequences was measured as 4.9ns when simulating the common case where IA is left enabled, or 43.7ns when simulating the uncommon case where IA is disabled. These numbers can be seen as the worst case scenario, since in more realistic scenarios a better performing governor would be used and a newer chip would be used that would support PAC unlike Cortex-A75 and would be expected to be faster than Cortex-A75. On an Apple M1 under a hypervisor, the overhead of the entry/exit instruction sequences introduced by this patch was measured as 0.3ns in the case where IA is left enabled, and 33.0ns in the case where IA is disabled. Signed-off-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Link: https://linux-review.googlesource.com/id/Ibc41a5e6a76b275efbaa126b31119dc197b927a5 Link: https://lore.kernel.org/r/d6609065f8f40397a4124654eb68c9f490b4d477.1616123271.git.pcc@google.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |
||
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Christophe JAILLET
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8db403b963 |
tracing/dynevent: Fix a memory leak in an error handling path
We must free 'argv' before returning, as already done in all the other
paths of this function.
Link: https://lkml.kernel.org/r/21e3594ccd7fc88c5c162c98450409190f304327.1618136448.git.christophe.jaillet@wanadoo.fr
Fixes:
|
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Lu Jialin
|
d95af61df0 |
cgroup/cpuset: fix typos in comments
Change hierachy to hierarchy and unrechable to unreachable, no functionality changed. Signed-off-by: Lu Jialin <lujialin4@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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Rafael J. Wysocki
|
0210b8eb72 |
Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull ARM cpufreq updates for v5.13 from Viresh Kumar: "- Fix typos in s5pv210 cpufreq driver (Bhaskar Chowdhury). - Armada 37xx: Fix cpufreq changing base CPU speed to 800 MHz from 1000 MHz (Pali Rohár and Marek Behún). - cpufreq-dt: Return -EPROBE_DEFER on failure to add table (Quanyang Wang). - Minor cleanup in cppc driver (Tom Saeger). - Add frequency invariance support for CPPC driver and generalize freq invariance support arch-topology driver (Viresh Kumar)." * 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: armada-37xx: Fix module unloading cpufreq: armada-37xx: Remove cur_frequency variable cpufreq: armada-37xx: Fix determining base CPU frequency cpufreq: armada-37xx: Fix driver cleanup when registration failed clk: mvebu: armada-37xx-periph: Fix workaround for switching from L1 to L0 clk: mvebu: armada-37xx-periph: Fix switching CPU freq from 250 Mhz to 1 GHz cpufreq: armada-37xx: Fix the AVS value for load L1 clk: mvebu: armada-37xx-periph: remove .set_parent method for CPU PM clock cpufreq: armada-37xx: Fix setting TBG parent for load levels cpufreq: dt: dev_pm_opp_of_cpumask_add_table() may return -EPROBE_DEFER cpufreq: cppc: simplify default delay_us setting cpufreq: Rudimentary typos fix in the file s5pv210-cpufreq.c cpufreq: CPPC: Add support for frequency invariance arch_topology: Export arch_freq_scale and helpers arch_topology: Allow multiple entities to provide sched_freq_tick() callback arch_topology: Rename freq_scale as arch_freq_scale |
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Linus Torvalds
|
add6b92660 |
Two minor fixes: one for a Clang warning, the other improves an
ambiguous/confusing kernel log message. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmBy4N4RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hvVg/7BWV2CDlG2g19KASGgWQo53+JO40E5j1j dG6h5u709TAYKtr2eckP0fC2Eah6Y3CXbZ2P2JMAwrO4KUETAyzyjlupFDBeiqap SI6XX6alir6M0p6uy0UaEjzqbRJHSMJJKYPyA3YoewsQiKVCbYf6xYQJ0cA5VHaQ ZcAof/lvmH7uMG3rDWbHDE3G1A67fK3FUp8AxR2i+7IAcG25q0Ov2gYWNOTM3Eh2 vSAuot/HPXIFjZDakfnx+iC2bIRZ3D6jgwlZNPIyzPFXB7A4+fyuFoJ8VbKyNRUa 38f0gQVYad7AnhriDjeaAngcPeHaBEWyWGnQXX99mZy7jqa/HbFZUI6Btxb+Ertg rGZ7XyfOalZfaD6UBfc8Pr0fvn7Ci6chww5XO6F/A4P02lWwcQreNLMJQ8Jzujvf FBADbHT7QvTm48JHJqfID/jNAp9/u2jjHq3I3B8k0gHkGsnVwliyHinxoaE8XyzG vXDk/C0RvdywJBAz5H3VbR1Q6NeTCl/IIzGf4e7XjxH6Y3tyHeDJI3EdSojUrnGk V74CzRnqsnC+kfvU92Ms5+daeRMOyctZTpOeIGSjD3AYxo7D7FqFTw3M1L2vnqDn oe6qrUDLHNITPzouuDDGDS9c0aHtRydfPSEz3NH3WLgVyfJM6rgZ5BX9ItZKFgMR ZCeoY21JXeA= =y7/k -----END PGP SIGNATURE----- Merge tag 'locking-urgent-2021-04-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixlets from Ingo Molnar: "Two minor fixes: one for a Clang warning, the other improves an ambiguous/confusing kernel log message" * tag 'locking-urgent-2021-04-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lockdep: Address clang -Wformat warning printing for %hd lockdep: Add a missing initialization hint to the "INFO: Trying to register non-static key" message |