Deming Wang [Tue, 2 May 2023 01:01:57 +0000 (21:01 -0400)]
docs: fix "Reviewd" typo
Spell "Reviewed" properly in Documentation/Translations/jp/SubmittingPatches
Signed-off-by: Deming Wang <wangdeming@inspur.com>
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/20230502010157.1655-1-wangdeming@inspur.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Geert Uytterhoeven [Tue, 2 May 2023 10:05:10 +0000 (12:05 +0200)]
Documentation: timers: hrtimers: Make hybrid union historical
Non-scalar time was removed from the ktime hybrid union in v3.17, and
the union itself followed suit in v4.10.
Make it clear that ktime_t is always a 64bit scalar type, to avoid
confusing the casual reader.
While at it, fix a spelling mistake.
Fixes:
24e4a8c3e8868874 ("ktime: Kill non-scalar ktime_t implementation for 2038")
Fixes:
2456e855354415bf ("ktime: Get rid of the union")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/59250a3d1c2c827b5c1833169a6e652ca6a784e6.1683021785.git.geert+renesas@glider.be
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Donald Hunter [Mon, 24 Apr 2023 08:03:05 +0000 (09:03 +0100)]
docs/admin-guide/mm/ksm.rst fix intraface -> interface typo
Fix typo from 'intraface' to 'interface' in admin guide for KSM.
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230424080305.2985-1-donald.hunter@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fabio Fantoni [Tue, 25 Apr 2023 11:01:58 +0000 (13:01 +0200)]
doc:it_IT: fix some typos
Fix of some typos spotted reading documentation in italian and latest
changes for 6.4
Signed-off-by: Fabio Fantoni <fantonifabio@tiscali.it>
Reviewed-by: Federico Vaga <federico.vaga@vaga.pv.it>
Link: https://lore.kernel.org/r/20230425110158.9755-1-fantonifabio@tiscali.it
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Akira Yokosawa [Tue, 7 Mar 2023 01:36:34 +0000 (10:36 +0900)]
media: Adjust column width for pdfdocs
The column width specifiers added in commit
8d0e3fc61abd ("media:
Add 2-10-10-10 RGB formats") don't suffice for column 1 and too
wide for column 2.
Adjust them to get a good looking table.
Fixes:
8d0e3fc61abd ("media: Add 2-10-10-10 RGB formats")
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/f94e3ada-212c-eef7-9e7b-03760bb29521@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Tomi Valkeinen [Tue, 7 Mar 2023 01:34:28 +0000 (10:34 +0900)]
media: Fix building pdfdocs
Commit
8d0e3fc61abd ("media: Add 2-10-10-10 RGB formats") added
documentation for a few new RGB formats. The table has column-width
specifiers for 34 columns used in pdfdocs build.
However, the new table has a couple of rows with 35 columns which
confused Sphinx's latex builder. The resulting .tex file causes
an error in a later stage of a pdfdocs build.
Remove the trailing empty dash lines to fix the issue.
Fixes:
8d0e3fc61abd ("media: Add 2-10-10-10 RGB formats")
Reported-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/12250823-8445-5854-dfb8-b92c0ff0851e@gmail.com/
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
[akiyks: explain the cause of build error]
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/29380b3e-1daa-3aef-1749-dbd9960ba620@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Brian Masney [Tue, 11 Apr 2023 19:21:53 +0000 (15:21 -0400)]
docs: clk: add documentation to log which clocks have been disabled
The existing clk documentation has a section that talks about the
clk_ignore_unused kernel parameter. Add additional documentation that
describes how to log which clocks the kernel disables on bootup. This
will log messages like the following to the console on bootup:
[ 1.268115] clk: Disabling unused clocks
[ 1.272167] clk_disable: gcc_usb_clkref_en
[ 1.276389] clk_disable: gcc_usb30_sec_sleep_clk
[ 1.281131] clk_disable: gcc_usb30_prim_sleep_clk
...
Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20230411192153.289688-1-bmasney@redhat.com
[jc: turned parameters into a literal block]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lin Yu Chen [Wed, 12 Apr 2023 18:37:39 +0000 (11:37 -0700)]
docs: trace: Fix typo in ftrace.rst
There is a typo in the sentence "A kernel developer must be
conscience ...". The word conscience should be conscious.
This patch fixes it.
Signed-off-by: Lin Yu Chen <starpt.official@gmail.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230412183739.89894-1-starpt.official@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Krzysztof Kozlowski [Thu, 13 Apr 2023 16:55:01 +0000 (18:55 +0200)]
Documentation/process: always CC responsible lists
The "Select the recipients for your patch" part about CC-ing mailing
lists is a bit vague and might be understood that only some lists should
be Cc-ed. That's not what most of the maintainers expect. For given
code, associated mailing list must always be CC-ed, because the list is
used for reviewing and testing patches. Example are the Devicetree
bindings patches, which are tested iff Devicetree mailing list is CC-ed.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230413165501.47442-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lukas Bulwahn [Fri, 14 Apr 2023 06:12:41 +0000 (08:12 +0200)]
docs: kmemleak: adjust to config renaming
Commit
c87db8ca0902 ("kmemleak-test: fix kmemleak_test.c build logic")
essentially renames the config DEBUG_KMEMLEAK_TEST to SAMPLE_KMEMLEAK, but
misses to adjust the documentation.
Adjust kmemleak documentation to this config renaming.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20230414061241.12754-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Alexey Dobriyan [Sat, 15 Apr 2023 17:37:29 +0000 (20:37 +0300)]
ELF: document some de-facto PT_* ABI quirks
Turns out rules about PT_INTERP, PT_GNU_STACK and PT_GNU_PROPERTY
program headers are slightly different.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Link: https://lore.kernel.org/r/88d3f1bb-f4e0-4c40-9304-3843513a1262@p183
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Alain Volmat [Sun, 16 Apr 2023 18:53:48 +0000 (20:53 +0200)]
Documentation: arm: remove stih415/stih416 related entries
ST's STiH415 and STiH416 platforms support have been removed since
a long time already. This commit updates the sti related documentation
overview to remove related entries and update the sti part to add
STiH407/STiH410 and STiH418 platforms which are still actively
supported.
Signed-off-by: Alain Volmat <avolmat@me.com>
Link: https://lore.kernel.org/r/20230416185349.18156-1-avolmat@me.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 20 Apr 2023 15:34:35 +0000 (09:34 -0600)]
docs: turn off "smart quotes" in the HTML build
We have long disabled the "html_use_smartypants" option to prevent Sphinx
from mangling "--" sequences (among others). Unfortunately, Sphinx changed
that option to "smartquotes" in the 1.6.6 release, and seemingly didn't see
fit to warn about the use of the obsolete option, resulting in the
aforementioned mangling returning. Disable this behavior again and hope
that the option name stays stable for a while.
Reported-by: Zipeng Zhang <zhangzipeng0@foxmail.com>
Link: https://lore.kernel.org/lkml/tencent_CB1A298D31FD221496FF657CD7EF406E6605@qq.com
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Florian Fainelli [Sun, 2 Apr 2023 13:54:14 +0000 (06:54 -0700)]
Documentation: firmware: Clarify firmware path usage
Newline characters will be taken into account for the firmware search
path parameter, warn users about that and provide an example using 'echo
-n' such that it clarifies the typical use of that parameter.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230402135423.3235-1-f.fainelli@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Kim Phillips [Fri, 31 Mar 2023 16:52:54 +0000 (11:52 -0500)]
docs/mm: Physical Memory: Fix grammar
it's -> its
referenced to by -> referenced by
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Link: https://lore.kernel.org/r/20230331165254.207526-1-kim.phillips@amd.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Feng Tang [Fri, 7 Apr 2023 04:12:35 +0000 (12:12 +0800)]
Documentation: Add document for false sharing
When doing performance tuning or debugging performance regressions,
more and more cases are found to be related to false sharing [1][2][3],
and the situation can be worse for newer platforms with hundreds of
CPUs. There are already many commits in current kernel specially
for mitigating the performance degradation due to false sharing.
False sharing could harm the performance silently without being
noticed, due to reasons like:
* data members of a big data structure randomly sitting together
in one cache line
* global data of small size are linked compactly together
So it's better to make a simple document about the normal pattern
of false sharing, basic ways to mitigate it and call out to
developers to pay attention during code-writing.
[ Many thanks to Dave Hansen, Ying Huang, Tim Chen, Julie Du and
Yu Chen for their contributions ]
[1]. https://lore.kernel.org/lkml/
20220619150456.GB34471@xsang-OptiPlex-9020/
[2]. https://lore.kernel.org/lkml/
20201102091543.GM31092@shao2-debian/
[3]. https://lore.kernel.org/lkml/
20230307125538.
818862491@linutronix.de/
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Link: https://lore.kernel.org/r/20230407041235.37886-1-feng.tang@intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Michael S. Tsirkin [Fri, 7 Apr 2023 10:54:51 +0000 (06:54 -0400)]
dma-api-howto: typo fix
Stumbled upon a typo while reading the doc, here's a fix.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/af1505348a67981f63ccff4e3c3d45b686cda43f.1680864874.git.mst@redhat.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 30 Mar 2023 19:48:12 +0000 (13:48 -0600)]
docs: move m68k architecture documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/m68k into arch/ and fix all in-tree references.
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 30 Mar 2023 19:28:50 +0000 (13:28 -0600)]
docs: move parisc documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/parisc into arch/ and fix all in-tree references.
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 30 Mar 2023 19:25:00 +0000 (13:25 -0600)]
docs: move ia64 architecture docs under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/ia64 into arch/ and fix all in-tree references.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 30 Mar 2023 19:08:45 +0000 (13:08 -0600)]
docs: Move arc architecture docs under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/arc into arch/ and fix all in-tree references.
Acked-by: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 20:59:48 +0000 (14:59 -0600)]
docs: move nios2 documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/nios2 into arch/ and fix all in-tree references.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 20:30:24 +0000 (14:30 -0600)]
docs: move openrisc documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/openrisc into arch/ and fix all in-tree references.
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Acked-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 20:17:42 +0000 (14:17 -0600)]
docs: move superh documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/sh into arch/ and fix all in-tree references.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 20:15:28 +0000 (14:15 -0600)]
docs: move sparc documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/sparc into arch/ and fix all in-tree references.
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 20:08:44 +0000 (14:08 -0600)]
docs: move xtensa documentation under Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy. Move
Documentation/xtensa into arch/ and fix all in-tree references.
Cc: Chris Zankel <chris@zankel.net>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Thu, 23 Mar 2023 21:08:04 +0000 (15:08 -0600)]
docs: zh_CN: create the architecture-specific top-level directory
This mirrors commit
4f1bb0386dfc ("docs: create a top-level arch/
directory"), creating a top-level directory to hold architecture-specific
documentation.
Acked-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Tue, 14 Mar 2023 23:06:44 +0000 (17:06 -0600)]
docs: move x86 documentation into Documentation/arch/
Move the x86 documentation under Documentation/arch/ as a way of cleaning
up the top-level directory and making the structure of our docs more
closely match the structure of the source directories it describes.
All in-kernel references to the old paths have been updated.
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/20230315211523.108836-1-corbet@lwn.net/
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Bagas Sanjaya [Wed, 15 Mar 2023 10:02:46 +0000 (17:02 +0700)]
Documentation: kernel-parameters: Remove meye entry
Commit
ba47652ba65523 ("media: meye: remove this deprecated driver")
removes meye driver but forgets to purge its kernel-parameters.txt
entry, hence broken reference.
Remove the entry.
Link: https://lore.kernel.org/all/202302070341.OVqstpMM-lkp@intel.com/
Fixes:
ba47652ba655 ("media: meye: remove this deprecated driver")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230315100246.62324-1-bagasdotme@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Federico Vaga [Sun, 26 Mar 2023 13:02:13 +0000 (15:02 +0200)]
doc:it_IT: translation alignment
Italian translation updated following these changes:
commit
901578a45950 ("docs: recommend using Link: whenever using Reported-by:")"
commit
775a445d9a63 ("coding-style: fix title of Greg K-H's talk")
commit
1d2ed9234c85 ("Documentation: process: Document suitability of Proton Mail for kernel development")
commit
9d0f5cd16744 ("docs: promote the title of process/index.rst")
commit
d4563201f33a ("Documentation: simplify and clarify DCO contribution example language")
commit
e7b4311ebcac ("Replace HTTP links with HTTPS ones: Documentation/process")
commit
0b02076f9953 ("docs: programming-language: add Rust programming language section")
commit
38484a1d0c50 ("docs: programming-language: remove mention of the Intel compiler")
commit
b8885e2615f4 ("Documentation: front page: use recommended heading adornments")
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Link: https://lore.kernel.org/r/20230326130213.28755-1-federico.vaga@vaga.pv.it
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Akira Yokosawa [Wed, 29 Mar 2023 05:22:28 +0000 (14:22 +0900)]
docs/sp_SP: Remove ZERO WIDTH SPACE in memory-barriers.txt
As this file is included literally, ZERO WIDTH SPACE causes
"make pdfdocs" to emit messages which read:
Missing character: There is no (U+200B) in font DejaVu Sans Mono/OT:script=latn;language=dflt;!
Missing character: There is no (U+200B) in font DejaVu Sans Mono/OT:script=latn;language=dflt;!
U+200B (ZERO WIDTH SPADE) has no effect in literal blocks.
Remove them and get rid of those noises.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Carlos Bilbao <carlos.bilbao@amd.com>
Link: https://lore.kernel.org/r/c38176c7-c30a-4c2c-3516-8d3be1c267dc@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jonathan Corbet [Tue, 14 Mar 2023 22:39:37 +0000 (16:39 -0600)]
docs: create a top-level arch/ directory
As the first step in bringing some order to our architecture-specific
documentation, create a top-level arch/ directory and move arch.rst as its
index.rst file.
There is no change in the rendered docs at this point.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Thorsten Leemhuis [Sun, 5 Mar 2023 13:04:44 +0000 (14:04 +0100)]
docs: describe how to quickly build a trimmed kernel
Add a text explaining how to quickly build a kernel, as that's something
users will often have to do when they want to report an issue or test
proposed fixes. This is a huge and frightening task for quite a few
users these days, as many rely on pre-compiled kernels and have never
built their own. They find help on quite a few websites explaining the
process in various ways, but those howtos often omit important details
or make things too hard for the 'quickly build just for testing' case
that 'localmodconfig' is really useful for. Hence give users something
at hand to guide them, as that makes it easier for them to help with
testing, debugging, and fixing the kernel.
To keep the complexity at bay, the document explicitly focuses on how to
compile the kernel on commodity distributions running on commodity
hardware. People that deal with less common distributions or hardware
will often know their way around already anyway.
The text describes a few oddities of Arch and Debian that were found by
the author and a few volunteers that tested the described procedure.
There are likely more such quirks that need to be covered as well as a
few things the author will have missed -- but one has to start
somewhere.
The document heavily uses anchors and links to them, which makes things
slightly harder to read in the source form. But the intended target
audience is way more likely to read rendered versions of this text on
pages like docs.kernel.org anyway -- and there those anchors and links
allow easy jumps to the reference section and back, which makes the
document a lot easier to work with for the intended target audience.
Aspects relevant for bisection were left out on purpose, as that is a
related, but in the end different use case. The rough plan is to have a
second document with a similar style to cover bisection. The idea is to
reuse a few bits from this document and link quite often to entries in
the reference section with the help of the anchors in this text.
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/1a788a8e7ba8a2063df08668f565efa832016032.1678021408.git.linux@leemhuis.info
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jakub Wilk [Wed, 22 Mar 2023 21:53:11 +0000 (22:53 +0100)]
coding-style: fix title of Greg K-H's talk
The talk title was inadvertently mangled in
8c27ceff3604 ("docs: fix
locations of several documents that got moved").
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Link: https://lore.kernel.org/r/20230322215311.6579-1-jwilk@jwilk.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Tony Luck [Wed, 15 Mar 2023 22:57:22 +0000 (15:57 -0700)]
Documentation/x86: Update split lock documentation
commit
b041b525dab9 ("x86/split_lock: Make life miserable for split
lockers") added a delay and serialization of split locks. Commit
727209376f49 ("x86/split_lock: Add sysctl to control the misery mode")
provided a sysctl to turn off the misery.
Update the split lock documentation to describe the current state of
the code.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20230315225722.104607-1-tony.luck@intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Zang Leigang [Thu, 16 Mar 2023 02:45:19 +0000 (10:45 +0800)]
docs/zh_CN: fix a wrong format
Add a missing markup for the code snippet at the end of lru_sort.rst
Signed-off-by: Zang Leigang <zangleigang@hisilicon.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20230316024519.27992-1-zangleigang@hisilicon.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Randy Dunlap [Fri, 17 Mar 2023 00:26:35 +0000 (17:26 -0700)]
Documentation: kernel-parameters: sort all "no..." parameters
Sort all of the "no..." kernel parameters into the correct order
as specified in kernel-parameters.rst: "into English Dictionary order
(defined as ignoring all punctuation and sorting digits before letters
in a case insensitive manner)".
No other changes here, just movement of lines.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230317002635.16540-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Federico Vaga [Sun, 19 Mar 2023 13:46:24 +0000 (14:46 +0100)]
doc:it_IT: translation alignment
Major update for maintainer-pgp-guide
commit
e4412739472b ("Documentation: raise minimum supported version of binutils to 2.25")
commit
67fe6792a7fb ("Documentation: stable: Document alternative for referring upstream commit hash")
commit
8763a30bc15b ("docs: deprecated.rst: Add note about DECLARE_FLEX_ARRAY() usage
commit
2f993509a97e ("docs: process/5.Posting.rst: clarify use of Reported-by: tag")
commit
a31323bef2b6 ("timers: Update the documentation to reflect on the new timer_shutdown() API")
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Link: https://lore.kernel.org/r/20230319134624.21327-1-federico.vaga@vaga.pv.it
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Bagas Sanjaya [Mon, 20 Mar 2023 12:43:27 +0000 (19:43 +0700)]
Documentation: maintainer-tip: Rectify link to "Describe your changes" section of submitting-patches.rst
The general changelog rules for the tip tree refers to "Describe your
changes" section of submitting patches guide. However, the internal link
reference targets to non-existent "submittingpatches" label, which
brings reader to the top of the linked doc.
Correct the target. No changes to submitting-patches.rst since the
required label is already there.
Fixes:
31c9d7c8297558 ("Documentation/process: Add tip tree handbook")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230320124327.174881-1-bagasdotme@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Mike Rapoport (IBM) [Mon, 13 Feb 2023 15:44:47 +0000 (17:44 +0200)]
docs/mm: Physical Memory: add example of interleaving nodes
Add an example of memory layout with interleaving nodes where even memory
banks belong to node 0 and odd memory banks belong to node 1
Suggested-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20230213154447.1631847-1-rppt@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lukas Bulwahn [Mon, 20 Feb 2023 17:02:10 +0000 (18:02 +0100)]
qnx4: credit contributors in CREDITS
Replace the content of the qnx4 README file with the canonical place for
such information.
Add the credits of the qnx4 contribution to CREDITS. As there is already a
QNX4 FILESYSTEM section in MAINTAINERS, it is clear who to contact and send
patches to.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-By: Anders Larsen <al@alarsen.net>
Link: https://lore.kernel.org/r/20230220170210.15677-3-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lukas Bulwahn [Mon, 20 Feb 2023 17:02:09 +0000 (18:02 +0100)]
qnx6: credit contributor and mark filesystem orphan
Replace the content of the qnx6 README file with the canonical places for
such information.
Add the credits of the qnx6 contribution to CREDITS, and add an section in
MAINTAINERS to mark this filesystem as Orphan, as the domain ontika.net and
email address does not resolve to an IP address anymore.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230220170210.15677-2-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Carlos Bilbao [Wed, 22 Feb 2023 18:34:45 +0000 (12:34 -0600)]
docs: Add relevant kernel publications to list of books
For the list of kernel published books, include publication covering kernel
debugging from August, 2022 (ISBN 978-
1801075039) and one from March, 2021
on the topic of char device drivers and kernel synchronization (ISBN
978-
1801079518). Also add foundational book from Robert Love (ISBN
978-
1449339531) and remove extra spaces.
Co-developed-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Link: https://lore.kernel.org/r/20230222183445.3127324-1-carlos.bilbao@amd.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Randy Dunlap [Mon, 27 Feb 2023 02:58:16 +0000 (18:58 -0800)]
Documentation: kernel-parameters: sort NFS parameters
Sort the NFS kernel command line parameters. This is done in 4 groups
so as to not have them intermingled: 'nfs' module parameters, 'nfs4'
module parameters, 'nfsd' module parameters, and nfs "global" (__setup,
no module) parameters.
There were 5 parameters which were listed with a space between the
parameter name and the following '=' sign. The space has been
removed since module parameters expect 'parameter=' with no intervening
space.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: linux-nfs@vger.kernel.org
Link: https://lore.kernel.org/r/20230227025816.1083-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lukas Bulwahn [Tue, 7 Mar 2023 14:40:00 +0000 (15:40 +0100)]
docs: admin: unicode: update information on state of lanana.org document
Replace link to a non-existing page with a note that lanana.org does not
maintain Linux Zone Unicode Assignments anymore.
Remove the reference to H. Peter Anvin and the unicode lanana.org email as
the maintainer of this file, as at this point, this is all maintained by
the general kernel community.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230307144000.29539-3-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Lukas Bulwahn [Tue, 7 Mar 2023 14:39:59 +0000 (15:39 +0100)]
MAINTAINERS: remove historic section DEVICE NUMBER REGISTRY
As described in Documentation/admin-guide/devices.rst, the device number
registry (or linux device list) is at Documentation/admin-guide/devices.txt
and no longer maintained at lanana.org.
The devices.txt file is basically community-maintained, and there is no
other dedicated maintainer or contact for that file nowadays.
Remove the historic section DEVICE NUMBER REGISTRY in MAINTAINERS.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230307144000.29539-2-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Theodore Ts'o [Wed, 8 Mar 2023 19:04:03 +0000 (14:04 -0500)]
Documentation/process: Add Linux Kernel Contribution Maturity Model
As a follow-up to a discussion at the 2021 Maintainer's Summit on the
topic of maintainer recruitment and retention, the TAB took on the
task of creating a document which to help companies and other
organizations to grow in their ability to engage with the Linux Kernel
development community, using the Maturity Model[2] framework.
The goal is to encourage, in a management-friendly way, companies to
allow their engineers to contribute with the upstream Linux Kernel
development community, so we can grow the "talent pipeline" for
contributors to become respected leaders, and eventually kernel
maintainers.
[1] https://lwn.net/Articles/870581/
[2] https://en.wikipedia.org/wiki/Maturity_model
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230308190403.2157046-1-tytso@mit.edu
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Carlos Bilbao [Fri, 10 Mar 2023 16:36:51 +0000 (10:36 -0600)]
docs/sp_SP: Add translation of process/deprecated
Translate Documentation/process/deprecated.rst into Spanish.
Co-developed-by: Sergio Gonzalez <sergio.collado@gmail.com>
Signed-off-by: Sergio Gonzalez <sergio.collado@gmail.com>
Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Link: https://lore.kernel.org/r/20230310163651.2500175-1-carlos.bilbao@amd.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Alexander Mikhalitsyn [Mon, 13 Mar 2023 13:07:18 +0000 (14:07 +0100)]
docs: filesystems: vfs: actualize struct super_operations description
Added/updated descriptions for super_operations:
- free_inode method
- evict_inode method
- freeze_super/thaw_super method
- show_{devname,path,stats} procfs-related methods
- get_dquots method
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230313130718.253708-3-aleksandr.mikhalitsyn@canonical.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Alexander Mikhalitsyn [Mon, 13 Mar 2023 13:07:17 +0000 (14:07 +0100)]
docs: filesystems: vfs: actualize struct file_system_type description
Added descriptions for:
- fscontext API ('init_fs_context' method, 'parameters' field)
- 'fs_supers' field
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230313130718.253708-2-aleksandr.mikhalitsyn@canonical.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Randy Dunlap [Tue, 14 Mar 2023 06:03:47 +0000 (23:03 -0700)]
Documentation: fs/proc: corrections and update
Update URL for the latest online version of this document.
Correct "files" to "fields" in a few places.
Update /proc/scsi, /proc/stat, and /proc/fs/ext4 information.
Drop /usr/src/ from the location of the kernel source tree.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230314060347.605-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jiri Pirko [Fri, 10 Mar 2023 09:58:57 +0000 (10:58 +0100)]
docs: vfio: fix header path
The text points to a different header file, fix by changing
the path to "uapi".
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20230310095857.985814-1-jiri@resnulli.us
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Xujun Leng [Sun, 12 Mar 2023 07:14:23 +0000 (15:14 +0800)]
docs: process: typo fix
In the second paragraph of section "Respond to review comments", there is
a spelling mistake: "aganst" should be "against".
Signed-off-by: Xujun Leng <lengxujun2007@126.com>
Link: https://lore.kernel.org/r/20230312071423.3042-1-lengxujun2007@126.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Mike Rapoport (IBM) [Fri, 24 Feb 2023 10:03:06 +0000 (12:03 +0200)]
docs/mm: hugetlbfs_reserv: fix a reference to a file that doesn't exist
kbuild reports:
>> Warning: Documentation/mm/hugetlbfs_reserv.rst references a file that doesn't exist: Documentation/mm/hugetlbpage.rst
>> Warning: Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst references a file that doesn't exist: Documentation/mm/hugetlbpage.rst
Fix the filename to be 'Documentation/admin-guide/mm/hugetlbpage.rst'.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202302231854.sKlCmx9K-lkp@intel.com/
Fixes:
ee86588960e2 ("docs/mm: remove useless markup")
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Link: https://lore.kernel.org/r/20230224100306.2287696-2-rppt@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Mike Rapoport (IBM) [Fri, 24 Feb 2023 10:03:05 +0000 (12:03 +0200)]
docs/mm: Physical Memory: fix a reference to a file that doesn't exist
kbuild reports:
>> Warning: Documentation/mm/physical_memory.rst references a file that doesn't exist: Documentation/admin-guide/mm/memory_hotplug.rst
Fix the filename to be 'Documentation/admin-guide/mm/memory-hotplug.rst'.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202302231311.567PAoS2-lkp@intel.com/
Fixes:
353c7dd636ed ("docs/mm: Physical Memory: remove useless markup")
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Link: https://lore.kernel.org/r/20230224100306.2287696-1-rppt@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Uwe Kleine-König [Tue, 28 Feb 2023 13:46:57 +0000 (14:46 +0100)]
docs: rebasing-and-merging: Drop wrong statement about git
The "^0" syntax is no longer needed to fast-forward to a mainline commit;
take that out and add --ff-only to force an error if fast-forward is not
possible.
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
[jc: rewrote changelog]
Link: https://lore.kernel.org/r/20230228134657.1797871-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Miguel Ojeda [Mon, 6 Mar 2023 19:17:12 +0000 (20:17 +0100)]
docs: programming-language: add Rust programming language section
Following the C text in the file, add a mention about the Rust
programming language, the currently supported compiler and
the edition used (similar to the "dialect" mention for C).
Similarly, add a mention about the unstable features used (similar
to the "extensions" mentions for C).
In addition, add some links to complement the information.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20230306191712.230658-2-ojeda@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Miguel Ojeda [Mon, 6 Mar 2023 19:17:11 +0000 (20:17 +0100)]
docs: programming-language: remove mention of the Intel compiler
The Intel compiler support has been removed in commit
95207db8166a
("Remove Intel compiler support").
Thus remove its mention in the Documentation too.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230306191712.230658-1-ojeda@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Glenn Washburn [Mon, 27 Feb 2023 18:40:42 +0000 (12:40 -0600)]
docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate
The details for struct dentry_operations member d_weak_revalidate is
missing a "d_" prefix.
Fixes:
af96c1e304f7 ("docs: filesystems: vfs: Convert vfs.txt to RST")
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/r/20230227184042.2375235-1-development@efficientek.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Song Shuai [Mon, 27 Feb 2023 10:59:41 +0000 (18:59 +0800)]
sched/doc: supplement CPU capacity with RISC-V
This commit
7d2078310cbf ("dt-bindings: arm: move cpu-capacity to a
shared loation") updates some references about capacity-dmips-mhz
property in this document.
The list of architectures using capacity-dmips-mhz omits RISC-V, so
supplements it here.
Signed-off-by: Song Shuai <suagrfillet@gmail.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com> # English
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230227105941.2749193-1-suagrfillet@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Linus Torvalds [Sun, 5 Mar 2023 22:52:03 +0000 (14:52 -0800)]
Linux 6.3-rc1
Linus Torvalds [Sat, 4 Mar 2023 21:35:43 +0000 (13:35 -0800)]
cpumask: re-introduce constant-sized cpumask optimizations
Commit
aa47a7c215e7 ("lib/cpumask: deprecate nr_cpumask_bits") resulted
in the cpumask operations potentially becoming hugely less efficient,
because suddenly the cpumask was always considered to be variable-sized.
The optimization was then later added back in a limited form by commit
6f9c07be9d02 ("lib/cpumask: add FORCE_NR_CPUS config option"), but that
FORCE_NR_CPUS option is not useful in a generic kernel and more of a
special case for embedded situations with fixed hardware.
Instead, just re-introduce the optimization, with some changes.
Instead of depending on CPUMASK_OFFSTACK being false, and then always
using the full constant cpumask width, this introduces three different
cpumask "sizes":
- the exact size (nr_cpumask_bits) remains identical to nr_cpu_ids.
This is used for situations where we should use the exact size.
- the "small" size (small_cpumask_bits) is the NR_CPUS constant if it
fits in a single word and the bitmap operations thus end up able
to trigger the "small_const_nbits()" optimizations.
This is used for the operations that have optimized single-word
cases that get inlined, notably the bit find and scanning functions.
- the "large" size (large_cpumask_bits) is the NR_CPUS constant if it
is an sufficiently small constant that makes simple "copy" and
"clear" operations more efficient.
This is arbitrarily set at four words or less.
As a an example of this situation, without this fixed size optimization,
cpumask_clear() will generate code like
movl nr_cpu_ids(%rip), %edx
addq $63, %rdx
shrq $3, %rdx
andl $-8, %edx
callq memset@PLT
on x86-64, because it would calculate the "exact" number of longwords
that need to be cleared.
In contrast, with this patch, using a MAX_CPU of 64 (which is quite a
reasonable value to use), the above becomes a single
movq $0,cpumask
instruction instead, because instead of caring to figure out exactly how
many CPU's the system has, it just knows that the cpumask will be a
single word and can just clear it all.
Note that this does end up tightening the rules a bit from the original
version in another way: operations that set bits in the cpumask are now
limited to the actual nr_cpu_ids limit, whereas we used to do the
nr_cpumask_bits thing almost everywhere in the cpumask code.
But if you just clear bits, or scan for bits, we can use the simpler
compile-time constants.
In the process, remove 'cpumask_complement()' and 'for_each_cpu_not()'
which were not useful, and which fundamentally have to be limited to
'nr_cpu_ids'. Better remove them now than have somebody introduce use
of them later.
Of course, on x86-64 with MAXSMP there is no sane small compile-time
constant for the cpumask sizes, and we end up using the actual CPU bits,
and will generate the above kind of horrors regardless. Please don't
use MAXSMP unless you really expect to have machines with thousands of
cores.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 5 Mar 2023 19:32:30 +0000 (11:32 -0800)]
Merge tag 'v6.3-p2' of git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a regression in the caam driver"
* tag 'v6.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: caam - Fix edesc/iv ordering mixup
Linus Torvalds [Sun, 5 Mar 2023 19:27:48 +0000 (11:27 -0800)]
Merge tag 'x86-urgent-2023-03-05' of git://git./linux/kernel/git/tip/tip
Pull x86 updates from Thomas Gleixner:
"A small set of updates for x86:
- Return -EIO instead of success when the certificate buffer for SEV
guests is not large enough
- Allow STIPB to be enabled with legacy IBSR. Legacy IBRS is cleared
on return to userspace for performance reasons, but the leaves user
space vulnerable to cross-thread attacks which STIBP prevents.
Update the documentation accordingly"
* tag 'x86-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt/sev-guest: Return -EIO if certificate buffer is not large enough
Documentation/hw-vuln: Document the interaction between IBRS and STIBP
x86/speculation: Allow enabling STIBP with legacy IBRS
Linus Torvalds [Sun, 5 Mar 2023 19:19:16 +0000 (11:19 -0800)]
Merge tag 'irq-urgent-2023-03-05' of git://git./linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"A set of updates for the interrupt susbsystem:
- Prevent possible NULL pointer derefences in
irq_data_get_affinity_mask() and irq_domain_create_hierarchy()
- Take the per device MSI lock before invoking code which relies on
it being hold
- Make sure that MSI descriptors are unreferenced before freeing
them. This was overlooked when the platform MSI code was converted
to use core infrastructure and results in a fals positive warning
- Remove dead code in the MSI subsystem
- Clarify the documentation for pci_msix_free_irq()
- More kobj_type constification"
* tag 'irq-urgent-2023-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/msi, platform-msi: Ensure that MSI descriptors are unreferenced
genirq/msi: Drop dead domain name assignment
irqdomain: Add missing NULL pointer check in irq_domain_create_hierarchy()
genirq/irqdesc: Make kobj_type structures constant
PCI/MSI: Clarify usage of pci_msix_free_irq()
genirq/msi: Take the per-device MSI lock before validating the control structure
genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()
Linus Torvalds [Sun, 5 Mar 2023 19:11:52 +0000 (11:11 -0800)]
Merge tag 'pull-misc' of git://git./linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
"Adding Christian Brauner as VFS co-maintainer"
* tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Adding VFS co-maintainer
Linus Torvalds [Sun, 5 Mar 2023 19:07:58 +0000 (11:07 -0800)]
Merge tag 'pull-fixes' of git://git./linux/kernel/git/viro/vfs
Pull VM_FAULT_RETRY fixes from Al Viro:
"Some of the page fault handlers do not deal with the following case
correctly:
- handle_mm_fault() has returned VM_FAULT_RETRY
- there is a pending fatal signal
- fault had happened in kernel mode
Correct action in such case is not "return unconditionally" - fatal
signals are handled only upon return to userland and something like
copy_to_user() would end up retrying the faulting instruction and
triggering the same fault again and again.
What we need to do in such case is to make the caller to treat that as
failed uaccess attempt - handle exception if there is an exception
handler for faulting instruction or oops if there isn't one.
Over the years some architectures had been fixed and now are handling
that case properly; some still do not. This series should fix the
remaining ones.
Status:
- m68k, riscv, hexagon, parisc: tested/acked by maintainers.
- alpha, sparc32, sparc64: tested locally - bug has been reproduced
on the unpatched kernel and verified to be fixed by this series.
- ia64, microblaze, nios2, openrisc: build, but otherwise completely
untested"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
openrisc: fix livelock in uaccess
nios2: fix livelock in uaccess
microblaze: fix livelock in uaccess
ia64: fix livelock in uaccess
sparc: fix livelock in uaccess
alpha: fix livelock in uaccess
parisc: fix livelock in uaccess
hexagon: fix livelock in uaccess
riscv: fix livelock in uaccess
m68k: fix livelock in uaccess
Masahiro Yamada [Sun, 16 Oct 2022 18:23:49 +0000 (03:23 +0900)]
Remove Intel compiler support
include/linux/compiler-intel.h had no update in the past 3 years.
We often forget about the third C compiler to build the kernel.
For example, commit
a0a12c3ed057 ("asm goto: eradicate CC_HAS_ASM_GOTO")
only mentioned GCC and Clang.
init/Kconfig defines CC_IS_GCC and CC_IS_CLANG but not CC_IS_ICC,
and nobody has reported any issue.
I guess the Intel Compiler support is broken, and nobody is caring
about it.
Harald Arnesen pointed out ICC (classic Intel C/C++ compiler) is
deprecated:
$ icc -v
icc: remark #10441: The Intel(R) C++ Compiler Classic (ICC) is
deprecated and will be removed from product release in the second half
of 2023. The Intel(R) oneAPI DPC++/C++ Compiler (ICX) is the recommended
compiler moving forward. Please transition to use this compiler. Use
'-diag-disable=10441' to disable this message.
icc version 2021.7.0 (gcc version 12.1.0 compatibility)
Arnd Bergmann provided a link to the article, "Intel C/C++ compilers
complete adoption of LLVM".
lib/zstd/common/compiler.h and lib/zstd/compress/zstd_fast.c were kept
untouched for better sync with https://github.com/facebook/zstd
Link: https://www.intel.com/content/www/us/en/developer/articles/technical/adoption-of-llvm-complete-icx.html
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Sun, 5 Mar 2023 01:27:29 +0000 (20:27 -0500)]
Adding VFS co-maintainer
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 4 Mar 2023 22:48:29 +0000 (14:48 -0800)]
Merge tag 'i2c-for-6.3-rc1-part2' of git://git./linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
"Some improvements/fixes for the newly added GXP driver and a Kconfig
dependency fix"
* tag 'i2c-for-6.3-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: gxp: fix an error code in probe
i2c: gxp: return proper error on address NACK
i2c: gxp: remove "empty" switch statement
i2c: Disable I2C_APPLE when I2C_PASEMI is a builtin
Linus Torvalds [Sat, 4 Mar 2023 22:03:27 +0000 (14:03 -0800)]
mm: avoid gcc complaint about pointer casting
The migration code ends up temporarily stashing information of the wrong
type in unused fields of the newly allocated destination folio. That
all works fine, but gcc does complain about the pointer type mis-use:
mm/migrate.c: In function ‘__migrate_folio_extract’:
mm/migrate.c:1050:20: note: randstruct: casting between randomized structure pointer types (ssa): ‘struct anon_vma’ and ‘struct address_space’
1050 | *anon_vmap = (void *)dst->mapping;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
and gcc is actually right to complain since it really doesn't understand
that this is a very temporary special case where this is ok.
This could be fixed in different ways by just obfuscating the assignment
sufficiently that gcc doesn't see what is going on, but the truly
"proper C" way to do this is by explicitly using a union.
Using unions for type conversions like this is normally hugely ugly and
syntactically nasty, but this really is one of the few cases where we
want to make it clear that we're not doing type conversion, we're really
re-using the value bit-for-bit just using another type.
IOW, this should not become a common pattern, but in this one case using
that odd union is probably the best way to document to the compiler what
is conceptually going on here.
[ Side note: there are valid cases where we convert pointers to other
pointer types, notably the whole "folio vs page" situation, where the
types actually have fundamental commonalities.
The fact that the gcc note is limited to just randomized structures
means that we don't see equivalent warnings for those cases, but it
migth also mean that we miss other cases where we do play these kinds
of dodgy games, and this kind of explicit conversion might be a good
idea. ]
I verified that at least for an allmodconfig build on x86-64, this
generates the exact same code, apart from line numbers and assembler
comment changes.
Fixes:
64c8902ed441 ("migrate_pages: split unmap_and_move() to _unmap() and _move()")
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 4 Mar 2023 21:32:50 +0000 (13:32 -0800)]
Merge tag 'mm-hotfixes-stable-2023-03-04-13-12' of git://git./linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes.
Eight are for MM and seven are for other parts of the kernel. Seven
are cc:stable and eight address post-6.3 issues or were judged
unsuitable for -stable backporting"
* tag 'mm-hotfixes-stable-2023-03-04-13-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: map Dikshita Agarwal's old address to his current one
mailmap: map Vikash Garodia's old address to his current one
fs/cramfs/inode.c: initialize file_ra_state
fs: hfsplus: fix UAF issue in hfsplus_put_super
panic: fix the panic_print NMI backtrace setting
lib: parser: update documentation for match_NUMBER functions
kasan, x86: don't rename memintrinsics in uninstrumented files
kasan: test: fix test for new meminstrinsic instrumentation
kasan: treat meminstrinsic as builtins in uninstrumented files
kasan: emit different calls for instrumentable memintrinsics
ocfs2: fix non-auto defrag path not working issue
ocfs2: fix defrag path triggering jbd2 ASSERT
mailmap: map Georgi Djakov's old Linaro address to his current one
mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON
lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH
mm/damon/paddr: fix missing folio_put()
mm/mremap: fix dup_anon_vma() in vma_merge() case 4
Linus Torvalds [Sat, 4 Mar 2023 19:20:42 +0000 (11:20 -0800)]
Merge tag 'powerpc-6.3-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Drop orphaned VAS MAINTAINERS entry
- Fix build errors with clang and KCSAN
- Avoid build errors seen with LD_DEAD_CODE_DATA_ELIMINATION together
with recordmcount
Thanks to Nathan Chancellor.
* tag 'powerpc-6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Avoid dead code/data elimination when using recordmcount
powerpc/vmlinux.lds: Add .text.asan/tsan sections
powerpc: Drop orphaned VAS MAINTAINERS entry
Linus Torvalds [Sat, 4 Mar 2023 18:53:59 +0000 (10:53 -0800)]
Merge tag 'sound-fix-6.3-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of various small fixes that have been gathered since the
last PR.
The majority of changes are for ASoC, and there is a small change in
ASoC PCM core, but the rest are all for driver- specific fixes /
quirks / updates"
* tag 'sound-fix-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (32 commits)
ALSA: ice1712: Delete unreachable code in aureon_add_controls()
ALSA: ice1712: Do not left ice->gpio_mutex locked in aureon_add_controls()
ALSA: hda/realtek: Add quirk for HP EliteDesk 800 G6 Tower PC
ALSA: hda/realtek: Improve support for Dell Precision 3260
ASoC: mediatek: mt8195: add missing initialization
ASoC: mediatek: mt8188: add missing initialization
ASoC: amd: yc: Add DMI entries to support HP OMEN 16-n0xxx (8A43)
ASoC: zl38060 add gpiolib dependency
ASoC: sam9g20ek: Disable capture unless building with microphone input
ASoC: mt8192: Fix range for sidetone positive gain
ASoC: mt8192: Report an error if when an invalid sidetone gain is written
ASoC: mt8192: Fix event generation for controls
ASoC: mt8192: Remove spammy log messages
ASoC: mchp-pdmc: fix poc noise at capture startup
ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding
ASoC: soc-pcm: add option to start DMA after DAI
ASoC: mt8183: Fix event generation for I2S DAI operations
ASoC: mt8183: Remove spammy logging from I2S DAI driver
ASoC: mt6358: Remove undefined HPx Mux enumeration values
ASoC: mt6358: Validate Wake on Voice 2 writes
...
Linus Torvalds [Sat, 4 Mar 2023 00:33:28 +0000 (16:33 -0800)]
Merge tag 'for-v6.3-part2' of git://git./linux/kernel/git/sre/linux-power-supply
Pull more power supply updates from Sebastian Reichel:
- Fix DT binding for Richtek RT9467
- Fix a NULL pointer check in the power-supply core
- Document meaning of absent "present" property
* tag 'for-v6.3-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
dt-bindings: power: supply: Revise Richtek RT9467 compatible name
ABI: testing: sysfs-class-power: Document absence of "present" property
power: supply: fix null pointer check order in __power_supply_register
Linus Torvalds [Sat, 4 Mar 2023 00:26:43 +0000 (16:26 -0800)]
Merge tag '6.3-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more cifs updates from Steve French:
- xfstest generic/208 fix (memory leak)
- minor netfs fix (to address smatch warning)
- a DFS fix for stable
- a reconnect race fix
- two multichannel fixes
- RDMA (smbdirect) fix
- two additional writeback fixes from David
* tag '6.3-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix memory leak in direct I/O
cifs: prevent data race in cifs_reconnect_tcon()
cifs: improve checking of DFS links over STATUS_OBJECT_NAME_INVALID
iov: Fix netfs_extract_user_to_sg()
cifs: Fix cifs_write_back_from_locked_folio()
cifs: reuse cifs_match_ipaddr for comparison of dstaddr too
cifs: match even the scope id for ipv6 addresses
cifs: Fix an uninitialised variable
cifs: Add some missing xas_retry() calls
Linus Torvalds [Thu, 2 Mar 2023 23:49:44 +0000 (15:49 -0800)]
umh: simplify the capability pointer logic
The usermodehelper code uses two fake pointers for the two capability
cases: CAP_BSET for reading and writing 'usermodehelper_bset', and
CAP_PI to read and write 'usermodehelper_inheritable'.
This seems to be a completely unnecessary indirection, since we could
instead just use the pointers themselves, and never have to do any "if
this then that" kind of logic.
So just get rid of the fake pointer values, and use the real pointer
values instead.
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 3 Mar 2023 23:00:28 +0000 (15:00 -0800)]
Merge tag 'cocci-for-6.3' of git://git./linux/kernel/git/jlawall/linux
Pull coccinelle updates from Julia Lawall:
"Changes in make coccicheck and improve a semantic patch
This makes a couple of changes in make coccicheck related to shell
commands.
It also updates the api/atomic_as_refcounter semantic patch to include
WARNING in the output message, as done in other cases"
* tag 'cocci-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
scripts: coccicheck: Use /usr/bin/env
scripts: coccicheck: Avoid warning about spurious escape
coccinelle: api/atomic_as_refcounter: include message type in output
Linus Torvalds [Fri, 3 Mar 2023 22:51:15 +0000 (14:51 -0800)]
Merge tag 'rust-fixes-6.3-rc1' of https://github.com/Rust-for-Linux/linux
Pull Rust fix from Miguel Ojeda:
"A single build error fix: there was a change during the merge window
to a C header parsed by the Rust bindings generator, introducing a
type that it does not handle well.
The fix tells the generator to treat the type as opaque (for now)"
* tag 'rust-fixes-6.3-rc1' of https://github.com/Rust-for-Linux/linux:
rust: bindgen: Add `alt_instr` as opaque type
Linus Torvalds [Fri, 3 Mar 2023 22:41:50 +0000 (14:41 -0800)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Updates that missed the first pull, mostly because of needing more
soak time.
Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an
enclosure services (ses) update (mostly bug fixes) and other minor bug
fixes and changes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
scsi: zfcp: Trace when request remove fails after qdio send fails
scsi: zfcp: Change the type of all fsf request id fields and variables to u64
scsi: zfcp: Make the type for accessing request hashtable buckets size_t
scsi: ufs: core: Simplify ufshcd_execute_start_stop()
scsi: ufs: core: Rely on the block layer for setting RQF_PM
scsi: core: Extend struct scsi_exec_args
scsi: lpfc: Fix double word in comments
scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
scsi: core: Fix a source code comment
scsi: cxgbi: Remove unneeded version.h include
scsi: qedi: Remove unneeded version.h include
scsi: mpi3mr: Remove unneeded version.h include
scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
scsi: mpi3mr: Use number of bits to manage bitmap sizes
scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi
scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()
scsi: mpi3mr: Fix an issue found by KASAN
scsi: mpi3mr: Replace 1-element array with flex-array
scsi: ipr: Work around fortify-string warning
scsi: ipr: Make ipr_probe_ioa_part2() return void
...
Dan Carpenter [Mon, 27 Feb 2023 10:06:33 +0000 (13:06 +0300)]
i2c: gxp: fix an error code in probe
This is passing IS_ERR() instead of PTR_ERR() so instead of an error
code it prints and returns the number 1.
Fixes:
4a55ed6f89f5 ("i2c: Add GXP SoC I2C Controller")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Nick Hawkins <nick.hawkins@hpe.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Wolfram Sang [Mon, 20 Feb 2023 14:40:59 +0000 (15:40 +0100)]
i2c: gxp: return proper error on address NACK
According to Documentation/i2c/fault-codes.rst, NACK after sending an
address should be -ENXIO.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Wolfram Sang [Fri, 17 Feb 2023 22:13:30 +0000 (23:13 +0100)]
i2c: gxp: remove "empty" switch statement
There used to be error messages which had to go. Now, it only consists
of 'break's, so it can go.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Benjamin Gray [Mon, 27 Feb 2023 23:33:17 +0000 (10:33 +1100)]
i2c: Disable I2C_APPLE when I2C_PASEMI is a builtin
The ppc64le_allmodconfig sets I2C_PASEMI=y and leaves COMPILE_TEST to
default to y and I2C_APPLE to default to m, running into a known
incompatible configuration that breaks the build [1]. Specifically,
a common dependency (i2c-pasemi-core.o in this case) cannot be used by
both builtin and module consumers.
Disable I2C_APPLE when I2C_PASEMI is a builtin to prevent this.
[1]: https://lore.kernel.org/all/
202112061809.XT99aPrf-lkp@intel.com
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Linus Torvalds [Fri, 3 Mar 2023 18:41:59 +0000 (10:41 -0800)]
Merge tag 'thermal-6.3-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These fix two issues in the Intel thermal control drivers.
Specifics:
- Fix an error pointer dereference in the quark_dts Intel thermal
driver (Dan Carpenter)
- Fix the intel_bxt_pmic_thermal driver Kconfig entry to select
REGMAP which is not user-visible instead of depending on it (Randy
Dunlap)"
* tag 'thermal-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: BXT_PMIC: select REGMAP instead of depending on it
thermal: intel: quark_dts: fix error pointer dereference
Linus Torvalds [Fri, 3 Mar 2023 18:36:01 +0000 (10:36 -0800)]
Merge tag 'acpi-6.3-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These update ACPI quirks for some x86 platforms and add an IRQ
override quirk for one more system.
Specifics:
- Add an ACPI IRQ override quirk for Asus Expertbook
B2402FBA
(Vojtech Hejsek)
- Drop a suspend-to-idle quirk for HP Elitebook G9 that is not needed
any more after a firmware update (Mario Limonciello)
- Add all Cezanne systems to the list for forcing StorageD3Enable,
because they all need the same quirk (Mario Limonciello)"
* tag 'acpi-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: x86: utils: Add Cezanne to the list for forcing StorageD3Enable
ACPI: x86: Drop quirk for HP Elitebook
ACPI: resource: Skip IRQ override on Asus Expertbook
B2402FBA
Linus Torvalds [Fri, 3 Mar 2023 18:30:58 +0000 (10:30 -0800)]
Merge tag 'pm-6.3-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These update power capping (new hardware support and cleanup) and
cpufreq (bug fixes, cleanups and intel_pstate adjustment for a new
platform).
Specifics:
- Fix error handling in the apple-soc cpufreq driver (Dan Carpenter)
- Change the log level of a message in the amd-pstate cpufreq driver
so it is more visible to users (Kai-Heng Feng)
- Adjust the balance_performance EPP value for Sapphire Rapids in the
intel_pstate cpufreq driver (Srinivas Pandruvada)
- Remove MODULE_LICENSE from 3 pieces of non-modular code (Nick
Alcock)
- Make a read-only kobj_type structure in the schedutil cpufreq
governor constant (Thomas Weißschuh)
- Add Add Power Limit4 support for Meteor Lake SoC to the Intel RAPL
power capping driver (Sumeet Pawnikar)"
* tag 'pm-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: apple-soc: Fix an IS_ERR() vs NULL check
powercap: remove MODULE_LICENSE in non-modules
cpufreq: intel_pstate: remove MODULE_LICENSE in non-modules
powercap: RAPL: Add Power Limit4 support for Meteor Lake SoC
cpufreq: amd-pstate: remove MODULE_LICENSE in non-modules
cpufreq: schedutil: make kobj_type structure constant
cpufreq: amd-pstate: Let user know amd-pstate is disabled
cpufreq: intel_pstate: Adjust balance_performance EPP for Sapphire Rapids
Linus Torvalds [Fri, 3 Mar 2023 18:25:29 +0000 (10:25 -0800)]
Merge tag 'io_uring-6.3-2023-03-03' of git://git.kernel.dk/linux
Pull more io_uring updates from Jens Axboe:
"Here's a set of fixes/changes that didn't make the first cut, either
because they got queued before I sent the early merge request, or
fixes that came in afterwards. In detail:
- Don't set MSG_NOSIGNAL on recv/recvmsg opcodes, as AF_PACKET will
error out (David)
- Fix for spurious poll wakeups (me)
- Fix for a file leak for buffered reads in certain conditions
(Joseph)
- Don't allow registered buffers of mixed types (Pavel)
- Improve handling of huge pages for registered buffers (Pavel)
- Provided buffer ring size calculation fix (Wojciech)
- Minor cleanups (me)"
* tag 'io_uring-6.3-2023-03-03' of git://git.kernel.dk/linux:
io_uring/poll: don't pass in wake func to io_init_poll_iocb()
io_uring: fix fget leak when fs don't support nowait buffered read
io_uring/poll: allow some retries for poll triggering spuriously
io_uring: remove MSG_NOSIGNAL from recvmsg
io_uring/rsrc: always initialize 'folio' to NULL
io_uring/rsrc: optimise registered huge pages
io_uring/rsrc: optimise single entry advance
io_uring/rsrc: disallow multi-source reg buffers
io_uring: remove unused wq_list_merge
io_uring: fix size calculation when registering buf ring
io_uring/rsrc: fix a comment in io_import_fixed()
io_uring: rename 'in_idle' to 'in_cancel'
io_uring: consolidate the put_ref-and-return section of adding work
Linus Torvalds [Fri, 3 Mar 2023 18:21:39 +0000 (10:21 -0800)]
Merge tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- Don't access released socket during error recovery (Akinobu
Mita)
- Bring back auto-removal of deleted namespaces during sequential
scan (Christoph Hellwig)
- Fix an error code in nvme_auth_process_dhchap_challenge (Dan
Carpenter)
- Show well known discovery name (Daniel Wagner)
- Add a missing endianess conversion in effects masking (Keith
Busch)
- Fix for a regression introduced in blk-rq-qos during init in this
merge window (Breno)
- Reorder a few fields in struct blk_mq_tag_set, eliminating a few
holes and shrinking it (Christophe)
- Remove redundant bdev_get_queue() NULL checks (Juhyung)
- Add sed-opal single user mode support flag (Luca)
- Remove SQE128 check in ublk as it isn't needed, saving some memory
(Ming)
- Op specific segment checking for cloned requests (Uday)
- Exclusive open partition scan fixes (Yu)
- Loop offset/size checking before assigning them in the device (Zhong)
- Bio polling fixes (me)
* tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux:
blk-mq: enforce op-specific segment limits in blk_insert_cloned_request
nvme-fabrics: show well known discovery name
nvme-tcp: don't access released socket during error recovery
nvme-auth: fix an error code in nvme_auth_process_dhchap_challenge()
nvme: bring back auto-removal of deleted namespaces during sequential scan
blk-iocost: Pass gendisk to ioc_refresh_params
nvme: fix sparse warning on effects masking
block: be a bit more careful in checking for NULL bdev while polling
block: clear bio->bi_bdev when putting a bio back in the cache
loop: loop_set_status_from_info() check before assignment
ublk: remove check IO_URING_F_SQE128 in ublk_ch_uring_cmd
block: remove more NULL checks after bdev_get_queue()
blk-mq: Reorder fields in 'struct blk_mq_tag_set'
block: fix scan partition for exclusively open device again
block: Revert "block: Do not reread partition table on exclusively open device"
sed-opal: add support flag for SUM in status ioctl
Linus Torvalds [Fri, 3 Mar 2023 18:17:44 +0000 (10:17 -0800)]
Merge tag 'ata-6.3-fix' of git://git./linux/kernel/git/dlemoal/libata
Pull ATA fix from Damien Le Moal:
- Revert commit
104ff59af73a ("ata: ahci: Add Tiger Lake UP{3,4} AHCI
controller") as it is causing serious regressions (failure to boot)
on some laptops
* tag 'ata-6.3-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: ahci: Revert "ata: ahci: Add Tiger Lake UP{3,4} AHCI controller"
Rafael J. Wysocki [Fri, 3 Mar 2023 17:45:53 +0000 (18:45 +0100)]
Merge branches 'acpi-pm' and 'acpi-x86'
Merge additional ACPI quirks for x86 systems:
- Drop a suspend-to-idle quirk for HP Elitebook G9 that is not needed
any more after a firmware update (Mario Limonciello).
- Add all Cezanne systems to the list for forcing StorageD3Enable,
because they all need the same quirk (Mario Limonciello).
* acpi-pm:
ACPI: x86: Drop quirk for HP Elitebook
* acpi-x86:
ACPI: x86: utils: Add Cezanne to the list for forcing StorageD3Enable
Linus Torvalds [Fri, 3 Mar 2023 17:38:01 +0000 (09:38 -0800)]
Merge tag 's390-6.3-2' of git://git./linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
- Add empty command line parameter handling stubs to kernel for all
command line parameters which are handled in the decompressor. This
avoids invalid "Unknown kernel command line parameters" messages from
the kernel, and also avoids that these will be incorrectly passed to
user space. This caused already confusion, therefore add the empty
stubs
- Add missing phys_to_virt() handling to machine check handler
- Introduce and use a union to be used for zcrypt inline assemblies.
This makes sure that only a register wide member of the union is
passed as input and output parameter to inline assemblies, while
usual C code uses other members of the union to access bit fields of
it
- Add and use a READ_ONCE_ALIGNED_128() macro, which can be used to
atomically read a 128-bit value from memory. This replaces the
(mis-)use of the 128-bit cmpxchg operation to do the same in cpum_sf
code. Currently gcc does not generate the used lpq instruction if
__READ_ONCE() is used for aligned 128-bit accesses, therefore use
this s390 specific helper
- Simplify machine check handler code if a task needs to be killed
because of e.g. register corruption due to a machine malfunction
- Perform CPU reset to clear pending interrupts and TLB entries on an
already stopped target CPU before delegating work to it
- Generate arch/s390/boot/vmlinux.map link map for the decompressor,
when CONFIG_VMLINUX_MAP is enabled for debugging purposes
- Fix segment type handling for dcssblk devices. It incorrectly always
returned type "READ/WRITE" even for read-only segements, which can
result in a kernel panic if somebody tries to write to a read-only
device
- Sort config S390 select list again
- Fix two kprobe reenter bugs revealed by a recently added kprobe kunit
test
* tag 's390-6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kprobes: fix current_kprobe never cleared after kprobes reenter
s390/kprobes: fix irq mask clobbering on kprobe reenter from post_handler
s390/Kconfig: sort config S390 select list again
s390/extmem: return correct segment type in __segment_load()
s390/decompressor: add link map saving
s390/smp: perform cpu reset before delegating work to target cpu
s390/mcck: cleanup user process termination path
s390/cpum_sf: use READ_ONCE_ALIGNED_128() instead of 128-bit cmpxchg
s390/rwonce: add READ_ONCE_ALIGNED_128() macro
s390/ap,zcrypt,vfio: introduce and use ap_queue_status_reg union
s390/nmi: fix virtual-physical address confusion
s390/setup: do not complain about parameters handled in decompressor
Linus Torvalds [Fri, 3 Mar 2023 17:32:51 +0000 (09:32 -0800)]
Merge tag 'riscv-for-linus-6.3-mw2' of git://git./linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- Some cleanups and fixes for the Zbb-optimized string routines
- Support for custom (vendor or implementation defined) perf events
- COMMAND_LINE_SIZE has been increased to 1024
* tag 'riscv-for-linus-6.3-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Bump COMMAND_LINE_SIZE value to 1024
drivers/perf: RISC-V: Allow programming custom firmware events
riscv, lib: Fix Zbb strncmp
RISC-V: improve string-function assembly
Rafael J. Wysocki [Fri, 3 Mar 2023 17:26:43 +0000 (18:26 +0100)]
Merge branch 'powercap'
Merge additional power capping changes for 6.3-rc1:
- Remove MODULE_LICENSE from non-modular power capping code (Nick
Alcock).
- Add Add Power Limit4 support for Meteor Lake SoC to the Intel RAPL
power capping driver (Sumeet Pawnikar).
* powercap:
powercap: remove MODULE_LICENSE in non-modules
powercap: RAPL: Add Power Limit4 support for Meteor Lake SoC
Linus Torvalds [Fri, 3 Mar 2023 17:15:50 +0000 (09:15 -0800)]
Merge tag 'rtc-6.3' of git://git./linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"A few drivers got some nice cleanups and a new driver are making the
bulk of the changes.
Subsystem:
- allow rtc_read_alarm without read_alarm callback
New driver:
- NXP BBNSM module RTC
Drivers:
- use IRQ flags from fwnode when available
- abx80x: nvmem support
- brcmstb-waketimer: add non-wake alarm support
- ingenic: provide CLK32K clock
- isl12022: cleanups
- moxart: switch to using gpiod API
- pcf85363: allow setting quartz load
- pm8xxx: cleanups and support for setting time
- rv3028, rv3032: add ACPI support"
* tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (64 commits)
rtc: pm8xxx: add support for nvmem offset
dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset
rtc: abx80x: Add nvmem support
rtc: rx6110: Remove unused of_gpio,h
rtc: efi: Avoid spamming the log on RTC read failure
rtc: isl12022: sort header inclusion alphabetically
rtc: isl12022: Join string literals back
rtc: isl12022: Drop unneeded OF guards and of_match_ptr()
rtc: isl12022: Explicitly use __le16 type for ISL12022_REG_TEMP_L
rtc: isl12022: Get rid of unneeded private struct isl12022
rtc: pcf85363: add support for the quartz-load-femtofarads property
dt-bindings: rtc: nxp,pcf8563: move pcf85263/pcf85363 to a dedicated binding
rtc: allow rtc_read_alarm without read_alarm callback
rtc: rv3032: add ACPI support
rtc: rv3028: add ACPI support
rtc: bbnsm: Add the bbnsm rtc support
rtc: jz4740: Register clock provider for the CLK32K pin
rtc: jz4740: Use dev_err_probe()
rtc: jz4740: Use readl_poll_timeout
dt-bindings: rtc: Add #clock-cells property
...
Dmitry Fomin [Sat, 25 Feb 2023 18:43:22 +0000 (21:43 +0300)]
ALSA: ice1712: Delete unreachable code in aureon_add_controls()
If the check (id != 0x41) fails, then id == 0x41 and
the other check in 'else' branch also
fails: id & 0x0F =
0b01000001 &
0b00001111 =
0b00000001.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Dmitry Fomin <fomindmitriyfoma@mail.ru>
Link: https://lore.kernel.org/r/20230225184322.6286-2-fomindmitriyfoma@mail.ru
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dmitry Fomin [Sat, 25 Feb 2023 18:43:21 +0000 (21:43 +0300)]
ALSA: ice1712: Do not left ice->gpio_mutex locked in aureon_add_controls()
If snd_ctl_add() fails in aureon_add_controls(), it immediately returns
and leaves ice->gpio_mutex locked. ice->gpio_mutex locks in
snd_ice1712_save_gpio_status and unlocks in
snd_ice1712_restore_gpio_status(ice).
It seems that the mutex is required only for aureon_cs8415_get(),
so snd_ice1712_restore_gpio_status(ice) can be placed
just after that. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Dmitry Fomin <fomindmitriyfoma@mail.ru>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230225184322.6286-1-fomindmitriyfoma@mail.ru
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Łukasz Stelmach [Thu, 23 Feb 2023 07:47:48 +0000 (08:47 +0100)]
ALSA: hda/realtek: Add quirk for HP EliteDesk 800 G6 Tower PC
HP EliteDesk 800 G6 Tower PC (103c:870c) requires a quirk for enabling
headset-mic.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217008
Link: https://lore.kernel.org/r/20230223074749.1026060-1-l.stelmach@samsung.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jaroslav Kysela [Tue, 21 Feb 2023 10:21:57 +0000 (11:21 +0100)]
ALSA: hda/realtek: Improve support for Dell Precision 3260
The headset jack works better with model=alc283-dac-wcaps. Without this
option, the headset insertion (separate physical jack) may not be handled
correctly (re-insertion is required).
It seems that it follows the "Intel Reference Board" defaults.
Reported-by: steven_wu2@dell.com
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230221102157.515852-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Fri, 3 Mar 2023 13:21:13 +0000 (14:21 +0100)]
Merge tag 'asoc-fix-v6.3' of https://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.3
Almost all of this is driver specific fixes and new IDs that have come
in during the merge window. A good chunk of them are simple ones from
me which came about due to a bunch of Mediatek Chromebooks being enabled
in KernelCI, there's more where that came from.
We do have one small feature added to the PCM core by Claudiu Beznea in
order to allow the sequencing required to resolve a noise issue with the
Microchip PDMC driver.