Merge patch series from Nick Desaulniers to update the minimum gcc
version to 5.1.
This is some of the left-overs from the merge window that I didn't want
to deal with yesterday, so it comes in after -rc1 but was sent before.
Gcc-4.9 support has been an annoyance for some time, and with -Werror I
had the choice of applying a fairly big patch from Kees Cook to remove a
fair number of initializer warnings (still leaving some), or this patch
series from Nick that just removes the source of the problem.
The initializer cleanups might still be worth it regardless, but
honestly, I preferred just tackling the problem with gcc-4.9 head-on.
We've been more aggressiuve about no longer having to care about
compilers that were released a long time ago, and I think it's been a
good thing.
I added a couple of patches on top to sort out a few left-overs now that
we no longer support gcc-4.x.
As noted by Arnd, as a result of this minimum compiler version upgrade
we can probably change our use of '--std=gnu89' to '--std=gnu11', and
finally start using local loop declarations etc. But this series does
_not_ yet do that.
Link: https://lore.kernel.org/all/20210909182525.372ee687@canb.auug.org.au/
Link: https://lore.kernel.org/lkml/CAK7LNASs6dvU6D3jL2GG3jW58fXfaj6VNOe55NJnTB8UPuk2pA@mail.gmail.com/
Link: https://github.com/ClangBuiltLinux/linux/issues/1438
* emailed patches from Nick Desaulniers <ndesaulniers@google.com>:
Drop some straggling mentions of gcc-4.9 as being stale
compiler_attributes.h: drop __has_attribute() support for gcc4
vmlinux.lds.h: remove old check for GCC 4.9
compiler-gcc.h: drop checks for older GCC versions
Makefile: drop GCC < 5 -fno-var-tracking-assignments workaround
arm64: remove GCC version check for ARCH_SUPPORTS_INT128
powerpc: remove GCC version check for UPD_CONSTR
riscv: remove Kconfig check for GCC version for ARCH_RV64I
Kconfig.debug: drop GCC 5+ version check for DWARF5
mm/ksm: remove old GCC 4.9+ check
compiler.h: drop fallback overflow checkers
Documentation: raise minimum supported version of GCC to 5.1
Fix up the admin-guide README file to the new gcc-5.1 requirement, and
remove a stale comment about gcc support for the __assume_aligned__
attribute.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Add new cpufreq driver for the MediaTek MT6779 platform called
mediatek-hw along with corresponding DT bindings (Hector.Yuan).
- Add DCVS interrupt support to the qcom-cpufreq-hw driver (Thara
Gopinath).
- Make the qcom-cpufreq-hw driver set the dvfs_possible_from_any_cpu
policy flag (Taniya Das).
- Blocklist more Qualcomm platforms in cpufreq-dt-platdev (Bjorn
Andersson).
- Make the vexpress cpufreq driver set the CPUFREQ_IS_COOLING_DEV
flag (Viresh Kumar).
- Add new cpufreq driver callback to allow drivers to register
with the Energy Model in a consistent way and make several
drivers use it (Viresh Kumar).
- Change the remaining users of the .ready() cpufreq driver callback
to move the code from it elsewhere and drop it from the cpufreq
core (Viresh Kumar).
- Revert recent intel_pstate change adding HWP guaranteed performance
change notification support to it that led to problems, because
the notification in question is triggered prematurely on some
systems (Rafael Wysocki).
- Convert the OPP DT bindings to DT schema and clean them up while
at it (Rob Herring).
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Merge tag 'pm-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly ARM cpufreq driver updates, including one new
MediaTek driver that has just passed all of the reviews, with the
addition of a revert of a recent intel_pstate commit, some core
cpufreq changes and a DT-related update of the operating performance
points (OPP) support code.
Specifics:
- Add new cpufreq driver for the MediaTek MT6779 platform called
mediatek-hw along with corresponding DT bindings (Hector.Yuan).
- Add DCVS interrupt support to the qcom-cpufreq-hw driver (Thara
Gopinath).
- Make the qcom-cpufreq-hw driver set the dvfs_possible_from_any_cpu
policy flag (Taniya Das).
- Blocklist more Qualcomm platforms in cpufreq-dt-platdev (Bjorn
Andersson).
- Make the vexpress cpufreq driver set the CPUFREQ_IS_COOLING_DEV
flag (Viresh Kumar).
- Add new cpufreq driver callback to allow drivers to register with
the Energy Model in a consistent way and make several drivers use
it (Viresh Kumar).
- Change the remaining users of the .ready() cpufreq driver callback
to move the code from it elsewhere and drop it from the cpufreq
core (Viresh Kumar).
- Revert recent intel_pstate change adding HWP guaranteed performance
change notification support to it that led to problems, because the
notification in question is triggered prematurely on some systems
(Rafael Wysocki).
- Convert the OPP DT bindings to DT schema and clean them up while at
it (Rob Herring)"
* tag 'pm-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
Revert "cpufreq: intel_pstate: Process HWP Guaranteed change notification"
cpufreq: mediatek-hw: Add support for CPUFREQ HW
cpufreq: Add of_perf_domain_get_sharing_cpumask
dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW
cpufreq: Remove ready() callback
cpufreq: sh: Remove sh_cpufreq_cpu_ready()
cpufreq: acpi: Remove acpi_cpufreq_cpu_ready()
cpufreq: qcom-hw: Set dvfs_possible_from_any_cpu cpufreq driver flag
cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev
cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support
cpufreq: scmi: Use .register_em() to register with energy model
cpufreq: vexpress: Use .register_em() to register with energy model
cpufreq: scpi: Use .register_em() to register with energy model
dt-bindings: opp: Convert to DT schema
dt-bindings: Clean-up OPP binding node names in examples
ARM: dts: omap: Drop references to opp.txt
cpufreq: qcom-cpufreq-hw: Use .register_em() to register with energy model
cpufreq: omap: Use .register_em() to register with energy model
cpufreq: mediatek: Use .register_em() to register with energy model
cpufreq: imx6q: Use .register_em() to register with energy model
...
another set of traditional Chinese translations.
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Merge tag 'docs-5.15-2' of git://git.lwn.net/linux
Pull more documentation updates from Jonathan Corbet:
"Another collection of documentation patches, mostly fixes but also
includes another set of traditional Chinese translations"
* tag 'docs-5.15-2' of git://git.lwn.net/linux:
docs: pdfdocs: Fix typo in CJK-language specific font settings
docs: kernel-hacking: Remove inappropriate text
docs/zh_TW: add translations for zh_TW/filesystems
docs/zh_TW: add translations for zh_TW/cpu-freq
docs/zh_TW: add translations for zh_TW/arm64
docs/zh_CN: Modify the translator tag and fix the wrong word
Documentation/features/vm: correct huge-vmap APIs
Documentation: block: blk-mq: Fix small typo in multi-queue docs
Documentation: in_irq() cleanup
Documentation: arm: marvell: Add 88F6825 model into list
Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path finder
Documentation: locking: fix references
Documentation: Update details of The Linux Kernel Module Programming Guide
docs: x86: Remove obsolete information about x86_64 vmalloc() faulting
Documentation/process/applying-patches: Activate linux-next man hyperlink
Merge misc updates from Andrew Morton:
"173 patches.
Subsystems affected by this series: ia64, ocfs2, block, and mm (debug,
pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure,
hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock,
oom-kill, migration, ksm, percpu, vmstat, and madvise)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits)
mm/madvise: add MADV_WILLNEED to process_madvise()
mm/vmstat: remove unneeded return value
mm/vmstat: simplify the array size calculation
mm/vmstat: correct some wrong comments
mm/percpu,c: remove obsolete comments of pcpu_chunk_populated()
selftests: vm: add COW time test for KSM pages
selftests: vm: add KSM merging time test
mm: KSM: fix data type
selftests: vm: add KSM merging across nodes test
selftests: vm: add KSM zero page merging test
selftests: vm: add KSM unmerge test
selftests: vm: add KSM merge test
mm/migrate: correct kernel-doc notation
mm: wire up syscall process_mrelease
mm: introduce process_mrelease system call
memblock: make memblock_find_in_range method private
mm/mempolicy.c: use in_task() in mempolicy_slab_node()
mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies
mm/mempolicy: advertise new MPOL_PREFERRED_MANY
mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY
...
flush_kernel_dcache_page is a rather confusing interface that implements a
subset of flush_dcache_page by not being able to properly handle page
cache mapped pages.
The only callers left are in the exec code as all other previous callers
were incorrect as they could have dealt with page cache pages. Replace
the calls to flush_kernel_dcache_page with calls to flush_dcache_page,
which for all architectures does either exactly the same thing, can
contains one or more of the following:
1) an optimization to defer the cache flush for page cache pages not
mapped into userspace
2) additional flushing for mapped page cache pages if cache aliases
are possible
Link: https://lkml.kernel.org/r/20210712060928.4161649-7-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This isn't used anymore, get rid of it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fix a wrong word;
Fix old Original tag;
Remove unnecessary blank lines;
Modify the translator tag to be consistent with the current.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210821081800.2205103-1-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The "TC" variants are supposed to be the choice for traditional
Chinese documents.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Reviewed-by: Hu Haowen <src.res@email.cn>
Tested-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/9d8e8fa2-3e7a-3a0a-1a0d-7d797a605ff8@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Noto CJK fonts don't provide italic shapes.
The AutoFakeSlant option of fontspec and xeCJK packages can be used as
a workaround.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/502335cc-9a95-3c2a-7744-6cc56ecaf628@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
CJK documents are much easier to read with a wider baseline stretch.
Applying onehalfspacing option of "setspace" package looks reasonable.
Note: \usepackage{setspace} needs to be before that of hyperref in the
preamble.
The 'extrapackages' key (available since Sphinx 2.3) is for this purpose.
For systems with Sphinx < 2.3, dummy commands of \onehalfspacing and
\singlespacing are provided instead.
One-half spacing is not effective in LaTeX sources generated by such
revisions of Sphinx.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/547a1f1c-0bb5-20a7-ea0e-951bfc3c3925@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Globally choosing "Noto Sans Mono CJK SC" would result in sub-optimal look
of literal blocks in Latin documents.
Therefore, localize the font choice to translations by adding conf.py under
Documentation/translations/.
The local conf.py is enabled when the command:
make SPHINXDIRS=translations pdfdocs
is used to build the PDF.
Resulting translations.pdf (under Documentation/output/translations/pdf)
will have properly aligned ascii-art figures.
NOTE: There remain mis-aligned ascii-art figures in Korean translations.
This is due to the font designer's decision to assign slightly narrower
widths (920) to Hangul characters in "Noto Sans Mono CJK KR" than those
of Hanja (Hanzi/Kanji) characters (1000) [1].
[1]: https://github.com/googlefonts/noto-cjk/issues/17
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/79a876fc-a552-f972-4a1b-c6df4cbb36dd@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
zh_TW, ko_KR, and ja_JP translations have their preferred glyph sets
different from that of zh_CN.
To switch CJK font in the middle of the translations, introduce custom
LaTeX macros listed below:
\kerneldocBeginSC
\kerneldocEndSC
\kerneldocBeginTC
\kerneldocEndTC
\kerneldocBeginKR
\kerneldocEndKR
\kerneldocBeginJP
\kerneldocEndJP
, and embed a pair of macros in each language's index.rst.
NOTE 1: Update of zh_TW/index.rst is deferred to a follow-up change.
NOTE 2: Custom macros added here do not imply \kerneldocCJK(on|off).
This is intentional. For example, \kerneldocCJKoff needs to be
at the top of Italian translations' index.rst for the footer of
final zh_TW page to be properly typeset.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/31906baf-7490-68cd-7153-4e4d320fb9b0@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add translation zh_CN/accounting/psi.rst and zh_CN/accounting/index.rst.
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20210731084502.571451-1-yang.yang29@zte.com.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Translation for the following patches
commit 0ca0d55526 ("docs/core-api: Consistent code style")
commit 9912d0bb9d ("docs: process: submitting-patches.rst: avoid using ReST :doc:`foo` markup")
commit 6349469a4f ("Documentation/submitting-patches: Document RESEND tag on patches")
commit dbbe7c962c ("docs: networking: drop special stable handling")
commit 7f3f7bfbbe ("docs: kernel-hacking: hacking.rst: avoid using ReST :doc:`foo` markup")
commit 6ab0493dfc ("deprecated.rst: Include details on "no_hash_pointers" ")
commit 77167b966b ("docs: submitting-patches: clarify the role of LKML ")
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Link: https://lore.kernel.org/r/20210731085513.11820-1-federico.vaga@vaga.pv.it
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Create new translations for zh_TW/process and link them to index.
Signed-off-by: Hu Haowen <src.res@email.cn>
Reviewed-by: Pan Yunwang <panyunwang849@gmail.com>
Link: https://lore.kernel.org/r/20210729155627.41744-2-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add traditional Chinese translation (zh_TW) for the Linux Kernel
documentation with a series of translated files.
Signed-off-by: Hu Haowen <src.res@email.cn>
Reviewed-by: Pan Yunwang <panyunwang849@gmail.com>
Link: https://lore.kernel.org/r/20210729155627.41744-1-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The original file has added a former intro in commit b51208d41c
("docs: Tweak the top-level Sphinx page") and hence update the Chinese
version for it.
Signed-off-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/20210608075207.77812-1-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Reorganise several long lines in order to satisfy the kernel coding
style.
Signed-off-by: Hu Haowen <src.res@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20210724130611.4231-1-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Create new translations for dev-tools/testing-overview.rst and link it
to dev-tools/index.rst with TODOList modifications.
Signed-off-by: Hu Haowen <src.res@email.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20210620052841.GA22083@bobwxc.top
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Commit e3c0623608 ("cpufreq: add cpufreq_driver_resolve_freq()")
introduced this callback, back in 2016, for drivers that provide the
->target() callback.
The kernel hasn't seen a single user of it in the past 5 years and
it is not likely to be used any time soon.
Remove it for now.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Now that all users of ->stop_cpu() have been migrated to using other
callbacks, drop it from the core.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Minor edits in the subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add new zh translations
* zh_CN/dev-tools/kasan.rst
and link it to zh_CN/dev-tools/index.rst
Reviewed-by: Fangrui Song <maskray@google.com>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210603141127.101689-1-wanjiabing@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add translation zh_CN/admin-guide/lockup-watchdogs.rst and link it to
zh_CN/admin-guide/index.rst while clean its todo entry.
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Hailong Liu <liu.hailong6@zte.com.cn>
Link: https://lore.kernel.org/r/20210603145227.30956-1-liuhailongg6@163.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Linus Torvalds
Christoph Hellwig
Viresh Kumar
Hu Haowen
Yanteng Si
Changbin Du
Akira Yokosawa
Yang Yang
Federico Vaga
Hu Jialun
Wan Jiabing
Hailong Liu