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2025-02-13docs: ABI: move README contents to the topMauro Carvalho Chehab
The ABI documentation looks a little bit better if it starts with the contents of the README is placed at the beginning. Move it to the beginning of the ABI chapter. While here, improve the README text and change the title that will be shown at the html/pdf output to be coherent with both ABI file contents and with the generated documentation output. Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20250211055809.1898623-1-mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-02-13docs: trace: decode_msr.py: make it compatible with python 3Mauro Carvalho Chehab
This script uses print <foo> instead of print(foo), which is incompatible with Python 3. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/88bb0d47100feaa3cda215e68bf6500dc67da7b3.1739257245.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-02-13docs: Makefile: use the new script to check for bad ABI referencesMauro Carvalho Chehab
The get_abi.pl script was replaced by get_abi.py. Update it at docs makefile. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202502110736.ZGWaWsep-lkp@intel.com/ Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20250211054446.1696826-1-mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-02-13Documentation/driver-api: fixed spelling mistakesAditya Dutt
Fixed some spelling mistakes identified by misspell tool. The example code in Documentation/driver-api/nvdimm/nvdimm.rst contained a misspelled identifier (paramaters instead of parameters). This typo would have caused a compilation error if copied as-is. Signed-off-by: Aditya Dutt <duttaditya18@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250211103002.199004-1-duttaditya18@gmail.com
2025-02-13scripts/kernel-doc: remove an obscure logic from kernel-docMauro Carvalho Chehab
Kernel-doc has an obscure logic that uses an external file to map files via a .tmp_filelist.txt file stored at the current directory. The rationale for such code predates git time, as it was added on Kernel v2.4.5.5, with the following description: # 26/05/2001 - Support for separate source and object trees. # Return error code. # Keith Owens <kaos@ocs.com.au> from commit 396a6123577d ("v2.4.5.4 -> v2.4.5.5") at the historic tree: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/ Support for separate source and object trees is now done on a different way via make O=<object>. There's no logic to create such file, so it sounds to me that this is just dead code. So, drop it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/fd3b28dec36ba1668325d6770d4c4754414337fc.1739340170.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-02-13docs: ABI: drop two duplicate symbolsMauro Carvalho Chehab
As warned by get_abi.py, there are two symbols that are defined twice: WARNING: /sys/devices/system/cpu/cpuX/topology/physical_package_id is defined 2 times: \ /new_devel/v4l/docs/Documentation/ABI/stable/sysfs-devices-system-cpu:27; \ /new_devel/v4l/docs/Documentation/ABI/testing/sysfs-devices-system-cpu:70 WARNING: /sys/devices/system/cpu/cpuX/topology/ppin is defined 2 times: \ /new_devel/v4l/docs/Documentation/ABI/stable/sysfs-devices-system-cpu:89; \ /new_devel/v4l/docs/Documentation/ABI/testing/sysfs-devices-system-cpu:70 As the documentation at testing/sysfs-devices-system-cpu, drop the duplicated one from stable. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/c3dce809f577584cf9aedafc6c2a0d5a9ca909ac.1739394480.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-02-10docs: submitting-patches: document the format for affiliationJakub Kicinski
Adding company name in round brackets to From/SoB lines is fairly common, but I don't see it documented anywhere. Every now and then people try to add the sponsorship lines to the commit message, fun example from this merge window: Sponsored by: The FreeBSD Foundation from commit 2ce67f8bf1ce ("wifi: iwlwifi: mvm: fix iwl_ssid_exist() check"). Better format would be: Author: Miri Korenblit (FreeBSD Foundation) <... Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250203174626.1131225-1-kuba@kernel.org
2025-02-10Merge branch 'mauro' into docs-mwJonathan Corbet
Mauro says: This series replace get_abi.pl with a Python version. I originally started it due to some issues I noticed when searching for ABI symbols. While I could just go ahead and fix the already existing script, I noticed that the script maintainance didn't have much care over all those years, probably because it is easier to find Python programmers those days. Also, the code is complex and was not using modules or classes and were using lots of global variables. So, I decided to rewrite it in Python. I started with a manual conversion for each function. Yet, to avoid future maintainership issues, I opted to divide the main code on three classes, each on a sepaparate file. Just like the original RFC, I opted to keep the Sphinx kernel-abi module on three different phases: - call get_abi.py as an exec file; - import AbiParser on a minimal integration scenario; - cleanup the code to avoid needing to parse line numbers from the text. This way, if something goes wrong, it would be easier to just revert any offending patches, It also provides a better rationale about what each logical change is doing. The initial patches on this series do some preparation work and cleans some ABI symbol bugs that lack ":" delimiter.
2025-02-10scripts/get_abi.pl: drop now obsoleted scriptMauro Carvalho Chehab
As all functionalities of it were migrated to get_abi.py, drop the now obsoleted script. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/698ec258b36b63ccde5f7da1af9c97cf8df51050.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/get_abi.py: add support for undefined ABIsMauro Carvalho Chehab
The undefined logic is complex and has lots of magic on it. Implement it, using the same algorithm we have at get_abi.pl. Yet, some tweaks to optimize performance and to make the code simpler were added here: - at the perl version, the tree graph had loops, so we had to use BFS to traverse it. On this version, the graph is a tree, so, it simplifies the what group for sysfs aliases; - the logic which splits regular expressions into subgroups was re-written to make it faster; - it may optionally use multiple processes to search for symbol matches; - it has some additional debug levels. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/1529c255845d117696d5af57d8dc05554663afdf.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/lib/abi/abi_parser.py: make it backward-compatible with Python 3.6Mauro Carvalho Chehab
Despite being introduced on Python 3.6, the original implementation was too limited: it doesn't accept anything but the argument. Even on python 3.10.12, support was still limited, as more complex operations cause SyntaxError: Exception occurred: File ".../linux/Documentation/sphinx/kernel_abi.py", line 48, in <module> from get_abi import AbiParser File ".../linux/scripts/lib/abi/abi_parser.py", line 525 msg += f"{part}\n{"-" * len(part)}\n\n" ^ SyntaxError: f-string: expecting '}' Replace f-strings by normal string concatenation when it doesn't work on Python 3.6. Reported-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/41d2f85df134a46db46fed73a0f9697a3d2ae9ba.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/lib/abi/abi_parser.py: Rename title name for ABI filesMauro Carvalho Chehab
This makes them look better when generating cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/e44574cb2796861d6acbce839068ed3ef385d16c.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: avoid warnings during Sphinx module initMauro Carvalho Chehab
Sphinx logging system doesn't like warnings during module load, as it understands that such logs are produced at the wrong time: WARNING: while setting up extension automarkup: /sys/devices/system/cpu/cpuX/topology/physical_package_id is defined 2 times: /new_devel/v4l/docs/Documentation/ABI/stable/sysfs-devices-system-cpu:27; /new_devel/v4l/docs/Documentation/ABI/testing/sysfs-devices-system-cpu:70 WARNING: while setting up extension automarkup: /sys/devices/system/cpu/cpuX/topology/ppin is defined 2 times: /new_devel/v4l/docs/Documentation/ABI/stable/sysfs-devices-system-cpu:89; /new_devel/v4l/docs/Documentation/ABI/testing/sysfs-devices-system-cpu:70 So, use a function to allocate/process ABI files and use it to be called at kernel_abi.py, as automarkup also needs it to produce the right cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/b0e79dc60d556e3b39fa6774d3b7bf734b73f352.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/automarkup: add cross-references for ABIMauro Carvalho Chehab
Now that all ABI files are handled together, we can add a feature at automarkup for it to generate cross-references for ABI symbols. The cross-reference logic can produce references for all existing files, except for README (as this is not parsed). For symbols, they need to be an exact match of what it is described at the docs, which is not always true due to wildcards. If symbols at /sys /proc and /config are identical, a cross-reference will be used. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/0b97a51b68b1c20127ad4a6a55658557fe0848d0.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: admin-guide/abi: split files from symbolsMauro Carvalho Chehab
Now that get_abi has gained support for filtering its output, split ABI symbols from files at the html output. That makes pages smaller and easier to navigate. As an additional bonus, as it will paralelize files handling, it gives an additional performance improvement. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/30e3cf2a8aeef23ca889de60a90f7de141e0dc0e.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: parse ABI files only onceMauro Carvalho Chehab
Right now, the logic parses ABI files on 4 steps, one for each directory. While this is fine in principle, by doing that, not all symbol cross-references will be created. Change the logic to do the parsing only once in order to get a global dictionary to be used when creating ABI cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/5205c53838b6ea25f4cdd4cc1e3d17c0141e75a6.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/get_abi.pl: add support to parse ABI README fileMauro Carvalho Chehab
The Documentation/ABI/README file is currently outside the documentation tree. Yet, it may still provide some useful information. Add it to the documentation parsing. As a plus, this avoids a warning when detecting missing cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/f1285dedfe4d0eb0f0af34f6a68bee6fde36dd7d.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/get_abi.pl: Add filtering capabilities to rest outputMauro Carvalho Chehab
This way, Sphinx ABI extension can parse symbols only once, while keep displaying results in separate files. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/41e108e816e46434aa596e5c0d25d227cb9f0fe5.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: properly split linesMauro Carvalho Chehab
Sphinx doesn't like to have lines split with str.split("\n"). Instead, it uses its own splitter, with handles line breaks the way Spinx expects. Not using it cause issues at the output files. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/d4ad5b977799616544376210364d5cec686119ef.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: reduce buffer usage for ABI messagesMauro Carvalho Chehab
Instead of producing a big message with all ABI contents and then parse as a whole, simplify the code by handling each ABI symbol in separate. As an additional benefit, there's no need to place file/line nubers inlined at the data and use a regex to convert them. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/15be22955e3c6df49d7256c8fd24f62b397ad0ff.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: use AbiParser directlyMauro Carvalho Chehab
Instead of running get_abi.py script, import AbiParser class and handle messages directly there using an interactor. This shold save some memory, as there's no need to exec python inside the Sphinx python extension. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/8dbc244dcda97112c1b694e2512a5d600e62873b.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/lib/abi/abi_parser.py: use an interactor for ReST outputMauro Carvalho Chehab
Instead of printing all results line per line, use an interactor to return each variable as a separate message. This won't change much when using it via command line, but it will help Sphinx integration by providing an interactor that could be used there to handle ABI symbol by symbol. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/e3c94b8cdfd5e955aa19a703921f364a89089634.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/lib/abi/abi_parser.py: optimize parse_abi() functionMauro Carvalho Chehab
Instead of using glob, use a recursive function to parse all files. Such change reduces the total excecution time by 15% with my SSD disks. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/190dd358897017ed82c56f1e263192215ffbae43.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: use get_abi.py for ABI generationMauro Carvalho Chehab
Use the new script instead of the old one when generating ABI docs. For now, execute it via exec. Future changes will better integrate it by using the class defined there directly. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/e7fcb121c0612c94f6f54f0d742cd3a26a46cd7d.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/get_abi.py: add support for symbol searchMauro Carvalho Chehab
Add support for searching symbols from Documentation/ABI using regular expressions to match the symbols' names. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/21b2c48657dde112d5417dcd7e0aa7cd383b9a0a.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/get_abi.py: add a Python tool to generate ReST outputMauro Carvalho Chehab
The get_abi.pl script is requiring some care, but it seems that the number of changes on it since when I originally wrote it was not too high. Maintaining perl scripts without using classes requires a higher efforted than on python, due to global variables management. Also, it sounds easier to find python developer those days than perl ones. As a plus, using a Python class to handle ABI allows a better integration with Sphinx extensions, allowing, for instance, to let automarkup to generate cross-references for ABI symbols. With that in mind, rewrite the core of get_abi.pl in Python, using classes, to help producing documentation. This will allow a better integration in the future with the Sphinx ABI extension. The algorithms used there are the same as the ones in Perl, with a couple of cleanups to remove redundant variables and to help with cross-reference generation. While doing that, remove some code that were important in the past, where ABI files weren't using ReST format. Some minor improvements were added like using a fixed seed when generating ABI keys for duplicated names, making its results reproductible. The end script is a little bit faster than the original one (tested on a machine with ssd disks). That's probably because we're now using only pre-compiled regular expressions, and it is using string replacement methods instead of regex where possible. The new version is a little bit more conservative when converting text to cross-references to avoid adding them into literal blocks. To ensure that the ReST output is parsing all variables and files properly, the end result was compared using diff with the one produced by the perl script and showed no regressions. There are minor improvements at the results, as it now properly groups What on some special cases. It also better escape some XREF names. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/71a894211a8b69664711144d9c4f8a0e73d1ae3c.1739182025.git.mchehab+huawei@kernel.org
2025-02-10scripts/documentation-file-ref-check: don't check perl/python scriptsMauro Carvalho Chehab
Such scripts may have regular expressions, which would make the parser confusing. Also, they shouldn't hardcode filenames there, so skipping them is OK. While here, also don't check references on extensions used for file backup and patch rej/orig. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/712bfc8412ee5ad8ab43dd21a8c30fc858eff5a6.1739182025.git.mchehab+huawei@kernel.org
2025-02-10ABI: sysfs-power: fix a what tagMauro Carvalho Chehab
There is one What tag that it is using semicolon instead of colon. Fix it to comply with ABI description and produce right results when converted to html/pdf. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/508051136ea2e07e0dd7fa41ff40382387c24ba8.1739182025.git.mchehab+huawei@kernel.org
2025-02-10ABI: sysfs-fs-f2fs: fix date tagsMauro Carvalho Chehab
Some date tags are missing colons. Add them to comply with ABI description and produce right results when converted to html/pdf. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/336ab631c0636e419282a38e7dd5b5cfb52fcd2d.1739182025.git.mchehab+huawei@kernel.org
2025-02-10ABI: sysfs-driver-dma-idxd: fix date tagsMauro Carvalho Chehab
Some date tags are missing colons. Add them to comply with ABI description and produce right results when converted to html/pdf. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/d5b7641e7a6ed461d889db5198cb557a68f27a6d.1739182025.git.mchehab+huawei@kernel.org
2025-02-10ABI: sysfs-bus-coresight-*: fix kernelversion tagsMauro Carvalho Chehab
Some kernelversion tags are missing colons. Add them to comply with ABI description and produce right results when converted to html/pdf. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/72c3a6583c2ffca23ae9ee1c0b6dc98618ae0775.1739182025.git.mchehab+huawei@kernel.org
2025-02-10ABI: sysfs-class-rfkill: fix kernelversion tagsMauro Carvalho Chehab
Some kernelversion tags are missing colons. Add them to comply with ABI description and produce right results when converted to html/pdf. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/b2e38f7857e8fddad03401a2ae6c5af5ca8db507.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: admin-guide: abi: add SPDX tags to ABI filesMauro Carvalho Chehab
Such files are missing SPDX tags containing the licensing information. Add them. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/8c7bfe676e7349ea2d1930bf918d54e27d15ae9e.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx/kernel_abi: adjust coding styleMauro Carvalho Chehab
Make pylint and flake8 happier with this module's coding style Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/02a9ec0fab61e4c94b9c2ff555bc0e9d93f59100.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs: sphinx: remove kernellog.py fileMauro Carvalho Chehab
In the past, there was a need for a wrapper due to different Sphinx versions support (before Sphinx 1.6). This is long gone, and now it is just a wrapper. Get rig of it to simplify the code. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/48bf16f199250d7048ca164d1b90773861915157.1739182025.git.mchehab+huawei@kernel.org
2025-02-10docs/zh_CN: Add secrets index Chinese translationzhangwei
Translate .../security/secrets/index.rst into Chinese Update the translation through commit 7419995a331c ("docs: security: Add secrets/coco documentation") Signed-off-by: zhangwei <zhangwei@cqsoftware.com.cn> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/57978b69f643c1aacf78804affde4c819960fd3c.1738923258.git.zhangwei@cqsoftware.com.cn
2025-02-10docs/zh_CN: Add keys index Chinese translationzhangwei
Translate .../security/keys/index.rst into Chinese Update the translation through commit 5395d312dff0 ("doc: ReSTify keys-trusted-encrypted.txt") Signed-off-by: zhangwei <zhangwei@cqsoftware.com.cn> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/6e55a93d889871a872a3449cb186c28fb38fd3df.1738923258.git.zhangwei@cqsoftware.com.cn
2025-02-10docs/zh_CN: Add self-protection index Chinese translationzhangwei
Translate .../security/self-protection.rst into Chinese. Update the translation through commit b080e52110ea ("docs: update self-protection __ro_after_init status") Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Reviewed-by: Yuxian Mao <maoyuxian@cqsoftware.com.cn> Signed-off-by: zhangwei <zhangwei@cqsoftware.com.cn> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/dd8c6da2e145aadac202e979bea0ff6b56431e0b.1738923258.git.zhangwei@cqsoftware.com.cn
2025-02-10docs/zh_CN: Update the translation of dev-tools/ubsan to v6.14-rc1WangYuli
Commit 918327e9b7ff ("ubsan: Remove CONFIG_UBSAN_SANITIZE_ALL") removed the CONFIG_UBSAN_SANITIZE_ALL configuration option. Update the Chinese documentation accordingly and revise the document format by the way. Link: https://lore.kernel.org/all/6F05157E5E157493+20250123043258.149643-1-wangyuli@uniontech.com/ Link: https://lore.kernel.org/all/fb3c5ec4-eabc-48c0-bf0b-d20cad978b4f@linux.dev/ Signed-off-by: WangYuli <wangyuli@uniontech.com> Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/2B33A00C9F5BECC7+20250207084821.251531-1-wangyuli@uniontech.com
2025-02-10docs: submit-checklist: Expand on build tests against different word sizesAkira Yokosawa
Existing sentence on cross-compilation that mentions ppc64 does not make much sense in today's perspective. Expand it for the benefits of testing against architectures of different word sizes and endianness. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/05c0b99c-c2e9-4702-90fd-8a4127586424@gmail.com
2025-02-10Documentation: Remove repeated word in docsCharles Han
Remove the repeated word "to" docs. Signed-off-by: Charles Han <hanchunchao@inspur.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250207073433.23604-1-hanchunchao@inspur.com
2025-02-10documentation/filesystems: fix spelling mistakesRitvik Gupta
Corrected the following spelling mistakes, based on the suggestions by codespell: 1. Optionaly -> Optionally 2. prefereable -> preferable 3. peformance -> performance 4. ontext -> context 5. failuer -> failure 6. poiners -> pointers 7. realtively -> relatively 8. uptream -> upstream Signed-off-by: Ritvik Gupta <ritvikfoss@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250210043937.30952-1-ritvikfoss@gmail.com
2025-02-10Merge tag 'v6.14-rc2' into testJonathan Corbet
-rc2 brought some new typos, and that inspired a patch to fix them. Rather than reject a non-applying patch, just move forward to -rc2.
2025-02-09Linux 6.14-rc2v6.14-rc2Linus Torvalds
2025-02-09Merge tag 'kbuild-fixes-v6.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Suppress false-positive -Wformat-{overflow,truncation}-non-kprintf warnings regardless of the W= option - Avoid CONFIG_TRIM_UNUSED_KSYMS dropping symbols passed to symbol_get() - Fix a build regression of the Debian linux-headers package * tag 'kbuild-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: install-extmod-build: add missing quotation marks for CC variable kbuild: fix misspelling in scripts/Makefile.lib kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS scripts/Makefile.extrawarn: Do not show clang's non-kprintf warnings at W=1
2025-02-09Merge tag 'pm-6.14-rc2-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Fix a recently introduced kernel crash due to a NULL pointer dereference during system-wide suspend (Rafael Wysocki)" * tag 'pm-6.14-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: core: Restrict power.set_active propagation
2025-02-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM: - Correctly clean the BSS to the PoC before allowing EL2 to access it on nVHE/hVHE/protected configurations - Propagate ownership of debug registers in protected mode after the rework that landed in 6.14-rc1 - Stop pretending that we can run the protected mode without a GICv3 being present on the host - Fix a use-after-free situation that can occur if a vcpu fails to initialise the NV shadow S2 MMU contexts - Always evaluate the need to arm a background timer for fully emulated guest timers - Fix the emulation of EL1 timers in the absence of FEAT_ECV - Correctly handle the EL2 virtual timer, specially when HCR_EL2.E2H==0 s390: - move some of the guest page table (gmap) logic into KVM itself, inching towards the final goal of completely removing gmap from the non-kvm memory management code. As an initial set of cleanups, move some code from mm/gmap into kvm and start using __kvm_faultin_pfn() to fault-in pages as needed; but especially stop abusing page->index and page->lru to aid in the pgdesc conversion. x86: - Add missing check in the fix to defer starting the huge page recovery vhost_task - SRSO_USER_KERNEL_NO does not need SYNTHESIZED_F" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (31 commits) KVM: x86/mmu: Ensure NX huge page recovery thread is alive before waking KVM: remove kvm_arch_post_init_vm KVM: selftests: Fix spelling mistake "initally" -> "initially" kvm: x86: SRSO_USER_KERNEL_NO is not synthesized KVM: arm64: timer: Don't adjust the EL2 virtual timer offset KVM: arm64: timer: Correctly handle EL1 timer emulation when !FEAT_ECV KVM: arm64: timer: Always evaluate the need for a soft timer KVM: arm64: Fix nested S2 MMU structures reallocation KVM: arm64: Fail protected mode init if no vgic hardware is present KVM: arm64: Flush/sync debug state in protected mode KVM: s390: selftests: Streamline uc_skey test to issue iske after sske KVM: s390: remove the last user of page->index KVM: s390: move PGSTE softbits KVM: s390: remove useless page->index usage KVM: s390: move gmap_shadow_pgt_lookup() into kvm KVM: s390: stop using lists to keep track of used dat tables KVM: s390: stop using page->index for non-shadow gmaps KVM: s390: move some gmap shadowing functions away from mm/gmap.c KVM: s390: get rid of gmap_translate() KVM: s390: get rid of gmap_fault() ...
2025-02-09PM: sleep: core: Restrict power.set_active propagationRafael J. Wysocki
Commit 3775fc538f53 ("PM: sleep: core: Synchronize runtime PM status of parents and children") exposed an issue related to simple_pm_bus_pm_ops that uses pm_runtime_force_suspend() and pm_runtime_force_resume() as bus type PM callbacks for the noirq phases of system-wide suspend and resume. The problem is that pm_runtime_force_suspend() does not distinguish runtime-suspended devices from devices for which runtime PM has never been enabled, so if it sees a device with runtime PM status set to RPM_ACTIVE, it will assume that runtime PM is enabled for that device and so it will attempt to suspend it with the help of its runtime PM callbacks which may not be ready for that. As it turns out, this causes simple_pm_bus_runtime_suspend() to crash due to a NULL pointer dereference. Another problem related to the above commit and simple_pm_bus_pm_ops is that setting runtime PM status of a device handled by the latter to RPM_ACTIVE will actually prevent it from being resumed because pm_runtime_force_resume() only resumes devices with runtime PM status set to RPM_SUSPENDED. To mitigate these issues, do not allow power.set_active to propagate beyond the parent of the device with DPM_FLAG_SMART_SUSPEND set that will need to be resumed, which should be a sufficient stop-gap for the time being, but they will need to be properly addressed in the future because in general during system-wide resume it is necessary to resume all devices in a dependency chain in which at least one device is going to be resumed. Fixes: 3775fc538f53 ("PM: sleep: core: Synchronize runtime PM status of parents and children") Closes: https://lore.kernel.org/linux-pm/1c2433d4-7e0f-4395-b841-b8eac7c25651@nvidia.com/ Reported-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Johan Hovold <johan+linaro@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/6137505.lOV4Wx5bFT@rjwysocki.net
2025-02-08Merge tag 'hardening-v6.14-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: "Address a KUnit stack initialization regression that got tickled on m68k, and solve a Clang(v14 and earlier) bug found by 0day: - Fix stackinit KUnit regression on m68k - Use ARRAY_SIZE() for memtostr*()/strtomem*()" * tag 'hardening-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: string.h: Use ARRAY_SIZE() for memtostr*()/strtomem*() compiler.h: Introduce __must_be_byte_array() compiler.h: Move C string helpers into C-only kernel section stackinit: Fix comment for test_small_end stackinit: Keep selftest union size small on m68k
2025-02-08Merge tag 'seccomp-v6.14-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp fix from Kees Cook: "This is really a work-around for x86_64 having grown a syscall to implement uretprobe, which has caused problems since v6.11. This may change in the future, but for now, this fixes the unintended seccomp filtering when uretprobe switched away from traps, and does so with something that should be easy to backport. - Allow uretprobe on x86_64 to avoid behavioral complications (Eyal Birger)" * tag 'seccomp-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: validate uretprobe syscall passes through seccomp seccomp: passthrough uretprobe systemcall without filtering
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