Jonathan Corbet [Wed, 19 Mar 2025 19:10:23 +0000 (13:10 -0600)]
Merge tag 'chinese-doc-6.15-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/alexs/linux into docs-mw
Chinese translation docs for 6.15-rc1
This is the Chinese translation subtree for 6.15-rc1. It just
includes few changes:
- Chinese disclaimer change
- add a new translation doc: snp-tdx-threat-model
- fix a typo
Above patches are tested by 'make htmldocs/pdfdocs'
Alex Shi [Wed, 5 Mar 2025 02:50:58 +0000 (10:50 +0800)]
docs/Chinese: change the disclaimer words
2 paragraph warning and note take a bit more space, let's merge them together,
and guide to other maintainer and reviewers.
Cc: Yanteng Si <si.yanteng@linux.dev> Cc: Dongliang Mu <dzm91@hust.edu.cn> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Reviewed-by: Tang Yizhou <yizhou.tang@shopee.com> Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn> Signed-off-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/20250305025101.27717-1-alexs@kernel.org
The guidelines mention that firmware updates can't break the kernel,
but it doesn't state directly that they can't break userspace programs.
Make it explicit that firmware updates cannot break UAPI.
Thorsten Leemhuis [Thu, 6 Feb 2025 14:30:10 +0000 (15:30 +0100)]
docs: clarify rules wrt tagging other people
Point out that explicit permission is usually needed to tag other people
in changes, but mention that implicit permission can be sufficient in
certain cases. This fixes slight inconsistencies between Reported-by:
and Suggested-by: and makes the usage more intuitive.
While at it, explicitly mention the dangers of our bugzilla instance, as
it makes it easy to forget that email addresses visible there are only
shown to logged-in users.
The latter is not a theoretical issue, as one maintainer mentioned that
his employer received a EU GDPR (general data protection regulation)
complaint after exposing a email address used in bugzilla through a tag
in a patch description.
kth [Thu, 13 Mar 2025 14:56:50 +0000 (22:56 +0800)]
docs: Remove outdated highuid.rst documentation
The highuid.rst document describes a transition that is outdated and no
longer relevant. Additionally, it references filesystems (ncpfs and smbfs),
which have been removed or replaced.
Maxime Ripard [Thu, 6 Mar 2025 13:51:14 +0000 (14:51 +0100)]
Documentation: dma-buf: heaps: Add heap name definitions
Following a recent discussion at last Plumbers, John Stultz, Sumit
Sewal, TJ Mercier and I came to an agreement that we should document
what the dma-buf heaps names are expected to be, and what the buffers
attributes you'll get should be documented.
Let's create that doc to make sure those attributes and names are
guaranteed going forward.
Akira Yokosawa [Tue, 4 Mar 2025 07:57:34 +0000 (16:57 +0900)]
docs/.../submit-checklist: Use Documentation/admin-guide/abi.rst for cross-ref of README
Commit fb12098d8ee4 ("docs: submit-checklist: Allow creating
cross-references for ABI README") assumes that the path of
"Documentation/ABI/README" would be converted to a cross-ref to
the README.
However, as the README is included by the "kernel-abi" directive
at Documentation/admin-guide/abi.rst, the expected conversion
does not happen.
Instead, use the path where the "kernel-abi" directive exists for
the conversion to work. Restore the original path of README in
inline-literal form as an additional note for readers of the .rst
file.
Apply the same changes for translations.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Fixes: fb12098d8ee4 ("docs: submit-checklist: Allow creating cross-references for ABI README") Fixes: eb0c714120ba ("docs: translations: Allow creating cross-references for ABI README") Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Cc: Alex Shi <alexs@kernel.org> Cc: Yanteng Si <si.yanteng@linux.dev> Cc: Dongliang Mu <dzm91@hust.edu.cn> Cc: Hu Haowen <2023002089@link.tyut.edu.cn> Cc: Federico Vaga <federico.vaga@vaga.pv.it> Cc: Carlos Bilbao <carlos.bilbao@kernel.org> Cc: Avadhut Naik <avadhut.naik@amd.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250304075734.56660-1-akiyks@gmail.com
Shuah Khan [Thu, 6 Mar 2025 21:12:31 +0000 (14:12 -0700)]
Documentation/CoC: Spell out the TAB role in enforcement decisions
Updates the document to clearly describe the scope and role the TAB plays
in making decisions on unresolved violations. If and when the CoC has to
make a call on instituting a ban, it doesn't act without the TAB's approval
and only when the TAB approves it with 2/3 vote in favor of the measure.
These changes ensure that the TAB role and its oversight on CoC measures
is consistently described throughout the document.
Fixes: c818d5c64c9a8cc1 ("Documentation/CoC: spell out enforcement for unacceptable behaviors") Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Miguel Ojeda <ojeda@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuah@kernel.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250306211231.13154-1-shuah@kernel.org
Heiko Carstens [Wed, 12 Mar 2025 15:52:19 +0000 (16:52 +0100)]
scripts: get_feat.pl: substitute s390x with s390
Both get_feat.pl and list-arch.sh use uname -m to get the machine hardware
name to figure out the current architecture if no architecture is specified
with a command line option.
This doesn't work for s390, since for 64 bit kernels the hardware name is
s390x, while the architecture name within the kernel, as well as in all
feature files is s390.
Therefore substitute s390x with s390 similar to what is already done for
x86_64 and i386.
drivers: media: intel-ipu3.h: fix identation on a kernel-doc markup
The "Rule" description is part of y_calc parameter. Having a line
starting at the beginning makes it part of the function description
instead, which is not the original intent.
Kerneldoc requires a "-" after the name of a function for it
to be recognized as a function.
Add it.
Fix those kernel-doc warnings:
include/asm-generic/io.h:1215: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* memset_io Set a range of I/O memory to a constant value
include/asm-generic/io.h:1227: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* memcpy_fromio Copy a block of data from I/O memory
include/asm-generic/io.h:1239: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* memcpy_toio Copy a block of data into I/O memory
Akira Yokosawa [Mon, 17 Feb 2025 06:01:32 +0000 (15:01 +0900)]
docs/ja_JP: Convert SubmitChecklist into reST with belated updates
This is a brand-new translation against
commit 2783096fb1dd ("docs: submit-checklist: Expand on build tests
against different word sizes"), rather than an update of
ja_JP/SubmitChecklist, which has never updated since 2008 except for
trivial changes not involving translation.
As we now have two reST contents under the ja_JP translation,
to avoid duplicated boiler plates, split out ja_JP's own disclaimer
part into a new section and put a reference to it at the beginning of
each doc.
As there is no prospect of ja_JP to have a lot of translated docs,
keep those .rst files in the toctree of ja_JP/index.rst.
Alex Shi [Thu, 13 Feb 2025 05:42:15 +0000 (13:42 +0800)]
docs/zh_CN: add few request for Chinese translation
A good checked summit could save much time for linux-doc maintainer.
Signed-off-by: Alex Shi <alexs@kernel.org> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250213054222.21776-2-alexs@kernel.org
Alex Shi [Thu, 13 Feb 2025 05:42:14 +0000 (13:42 +0800)]
docs/zh_CN: add maintainer tree for Chinese doc pickup
From now on, the Chinese translation doc should be aimed here for base.
Signed-off-by: Alex Shi <alexs@kernel.org> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20250213054222.21776-1-alexs@kernel.org
Yu-Chun Lin [Sat, 15 Feb 2025 15:54:21 +0000 (23:54 +0800)]
Documentation/core-api: min_heap: update for variable types change
Update the documentation to reflect the change in variable types of
'nr' and 'size' from 'int' to 'size_t', ensuring consistency with
commit dec6c0aac4fc ("lib min_heap: Switch to size_t").
The introduction discussed stat file formats for very old kernel versions,
which obscured key information that readers may find useful. Additionally,
the example file contents and the reference to "15 fields" did not account
for the flush fields added in b6866318657 ("block: add iostat counters for
flush requests") [1].
Rewrite the introduction to focus only on the current kernel's disk I/O stat
file formats. Also, clean up wording for conciseness.
Dongliang Mu [Mon, 17 Feb 2025 04:31:08 +0000 (12:31 +0800)]
MAINTAINERS: add reviewer for Chinese translations
Dongliang Mu has translated a substantial portion of kernel documentation
into Chinese, developed scripts/checktransupdate.py utility to automate
tracking of translated content updates, and actively reviewed patches.
Thus, add Dongliang Mu as a reviewer for the translations of
Chinese Documentation.
Lorenzo Stoakes [Tue, 18 Feb 2025 15:43:03 +0000 (15:43 +0000)]
kernel-docs: Add book to process/kernel-docs.rst
Add a reference to my new book, The Linux Memory Manager, an in-depth
exploration of the memory management subsystem, to
process/kernel-docs.rst.
This is not yet published, but the full draft is available on pre-order, so
it seems worthwhile adding it here. The situation is made clear in the
'notes' section.
The 'pre-release' was made available in February 2025, and full release is
scheduled for Fall 2025. The book's ISBN-13 is 978-1718504462.
The document will be updated upon release to reflect this.
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.
Aditya Dutt [Tue, 11 Feb 2025 10:30:02 +0000 (16:00 +0530)]
Documentation/driver-api: fixed spelling mistakes
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.
scripts/kernel-doc: remove an obscure logic from kernel-doc
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.
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.
Jakub Kicinski [Mon, 3 Feb 2025 17:46:25 +0000 (09:46 -0800)]
docs: submitting-patches: document the format for affiliation
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:
Jonathan Corbet [Mon, 10 Feb 2025 18:28:12 +0000 (11:28 -0700)]
Merge branch 'mauro' into docs-mw
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.
scripts/get_abi.py: add support for undefined ABIs
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.
docs: sphinx/kernel_abi: avoid warnings during Sphinx module init
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.
docs: sphinx/kernel_abi: parse ABI files only once
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.
scripts/get_abi.pl: add support to parse ABI README file
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.
docs: sphinx/kernel_abi: reduce buffer usage for ABI messages
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.
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.
scripts/lib/abi/abi_parser.py: use an interactor for ReST output
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.
scripts/get_abi.py: add a Python tool to generate ReST output
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.
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.
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.
WangYuli [Fri, 7 Feb 2025 08:48:20 +0000 (16:48 +0800)]
docs/zh_CN: Update the translation of dev-tools/ubsan to v6.14-rc1
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.
Linus Torvalds [Sun, 9 Feb 2025 18:05:32 +0000 (10:05 -0800)]
Merge tag 'kbuild-fixes-v6.14' of 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
Linus Torvalds [Sun, 9 Feb 2025 17:47:06 +0000 (09:47 -0800)]
Merge tag 'pm-6.14-rc2-2' of 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
Linus Torvalds [Sun, 9 Feb 2025 17:41:38 +0000 (09:41 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
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()
...
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
Linus Torvalds [Sat, 8 Feb 2025 22:12:17 +0000 (14:12 -0800)]
Merge tag 'hardening-v6.14-rc2' of 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
Linus Torvalds [Sat, 8 Feb 2025 22:04:21 +0000 (14:04 -0800)]
Merge tag 'seccomp-v6.14-rc2' of 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
Linus Torvalds [Sat, 8 Feb 2025 21:59:24 +0000 (13:59 -0800)]
Merge tag 'execve-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve fix from Kees Cook:
"This is an alpha-specific fix, but since it touched ELF I was asked to
carry it.
- alpha/elf: Fix misc/setarch test of util-linux by removing 32bit
support (Eric W. Biederman)"
* tag 'execve-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
alpha/elf: Fix misc/setarch test of util-linux by removing 32bit support
Linus Torvalds [Sat, 8 Feb 2025 21:45:34 +0000 (13:45 -0800)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A number of fairly small fixes, mostly in drivers but two in the core
to change a retry for depopulation (a trendy new hdd thing that
reorganizes blocks away from failing elements) and one to fix a GFP_
annotation to avoid a lock dependency (the third core patch is all in
testing)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla1280: Fix kernel oops when debug level > 2
scsi: ufs: core: Fix error return with query response
scsi: storvsc: Set correct data length for sending SCSI command without payload
scsi: ufs: core: Fix use-after free in init error and remove paths
scsi: core: Do not retry I/Os during depopulation
scsi: core: Use GFP_NOIO to avoid circular locking dependency
scsi: ufs: Fix toggling of clk_gating.state when clock gating is not allowed
scsi: ufs: core: Ensure clk_gating.lock is used only after initialization
scsi: ufs: core: Simplify temperature exception event handling
scsi: target: core: Add line break to status show
scsi: ufs: core: Fix the HIGH/LOW_TEMP Bit Definitions
scsi: core: Add passthrough tests for success and no failure definitions
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