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do_of_table() no longer needs to iterate over the of_device_id array.
Convert it to a generic ->do_entry() handler.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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do_pnp_device_entry() no longer needs to iterate over the
pnp_device_id array.
Convert it to a generic ->do_entry() handler.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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do_pnp_card_entries() no longer needs to iterate over the
pnp_card_device_id array.
Convert it to a generic ->do_entry() handler.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The do_*_entry() functions cannot check the length of the given buffer.
Use module_alias_printf() helper consistently for these functions.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Replace the first argument with a pointer to struct module.
'filename' can be replaced with mod->name.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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With the former cleanups in do_pnp_card_entries(), this macro is no
longer used by anyone.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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MODULE_DEVICE_TABLE(pnp_card, ...) may have duplicated IDs. For
instance, snd_ad1816a_pnpids[] in sound/isa/ad1816a/ad1816a.c includes
multiple occurrences of the "ADS7180" string within its .devs fields.
Currently, do_pnp_card_entries() handles deduplication on its own, but
this logic should be moved to a common helper function, as drivers in
other subsystems might also have similar duplication issues.
For example, drivers/media/i2c/s5c73m3/s5c73m3.mod.c contains duplicated
MODULE_ALIAS() entries because both s5c73m3-core.c and s5c73m3-spi.c
define the same compatible string.
This commit eliminates redundant MODULE_ALIAS() entries across all
drivers.
[Before]
$ grep MODULE_ALIAS drivers/media/i2c/s5c73m3/s5c73m3.mod.c
MODULE_ALIAS("i2c:S5C73M3");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3C*");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3C*");
[After]
$ grep MODULE_ALIAS drivers/media/i2c/s5c73m3/s5c73m3.mod.c
MODULE_ALIAS("i2c:S5C73M3");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3");
MODULE_ALIAS("of:N*T*Csamsung,s5c73m3C*");
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The generic ->do_entry() handler is currently limited to returning
a single alias string.
However, this is not flexible enough for several subsystems, which
currently require their own implementations:
- do_usb_table()
- do_of_table()
- do_pnp_device_entry()
- do_pnp_card_entries()
This commit introduces a helper function so that these special cases can
add multiple MODULE_ALIAS() and then migrate to the generic framework.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The 'id' pointer is never NULL since it has the same address as
'symval'.
Also, checking (*id)[0] is simpler than calling strlen().
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This function contains multiple bugs after the following commits:
- ac551828993e ("modpost: i2c aliases need no trailing wildcard")
- 6543becf26ff ("mod/file2alias: make modalias generation safe for cross compiling")
Commit ac551828993e inserted the following code to do_eisa_entry():
else
strcat(alias, "*");
This is incorrect because 'alias' is uninitialized. If it is not
NULL-terminated, strcat() could cause a buffer overrun.
Even if 'alias' happens to be zero-filled, it would output:
MODULE_ALIAS("*");
This would match anything. As a result, the module could be loaded by
any unrelated uevent from an unrelated subsystem.
Commit ac551828993e introduced another bug.
Prior to that commit, the conditional check was:
if (eisa->sig[0])
This checked if the first character of eisa_device_id::sig was not '\0'.
However, commit ac551828993e changed it as follows:
if (sig[0])
sig[0] is NOT the first character of the eisa_device_id::sig. The
type of 'sig' is 'char (*)[8]', meaning that the type of 'sig[0]' is
'char [8]' instead of 'char'. 'sig[0]' and 'symval' refer to the same
address, which never becomes NULL.
The correct conversion would have been:
if ((*sig)[0])
However, this if-conditional was meaningless because the earlier change
in commit ac551828993e was incorrect.
This commit removes the entire incorrect code, which should never have
been executed.
Fixes: ac551828993e ("modpost: i2c aliases need no trailing wildcard")
Fixes: 6543becf26ff ("mod/file2alias: make modalias generation safe for cross compiling")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Set the -e option to ensure this script fails on any unexpected errors.
Without this change, the kernel build may continue running with an
incorrect string in include/config/kernel.release.
Currently, try_tag() returns 1 when the expected tag is not found as an
ancestor, but this is a case where the script should continue.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Contrary to expectations, passing a single candidate tag to "git
describe" is slower than not passing any --match options.
$ time git describe --debug
...
traversed 10619 commits
...
v6.12-rc5-63-g0fc810ae3ae1
real 0m0.169s
$ time git describe --match=v6.12-rc5 --debug
...
traversed 1310024 commits
v6.12-rc5-63-g0fc810ae3ae1
real 0m1.281s
In fact, the --debug output shows that git traverses all or most of
history. For some repositories and/or git versions, those 1.3s are
actually 10-15 seconds.
This has been acknowledged as a performance bug in git [1], and a fix
is on its way [2]. However, no solution is yet in git.git, and even
when one lands, it will take quite a while before it finds its way to
a release and for $random_kernel_developer to pick that up.
So rewrite the logic to use plumbing commands. For each of the
candidate values of $tag, we ask: (1) is $tag even an annotated
tag? (2) Is it eligible to describe HEAD, i.e. an ancestor of
HEAD? (3) If so, how many commits are in $tag..HEAD?
I have tested that this produces the same output as the current script
for ~700 random commits between v6.9..v6.10. For those 700 commits,
and in my git repo, the 'make -s kernelrelease' command is on average
~4 times faster with this patch applied (geometric mean of ratios).
For the commit mentioned in Josh's original report [3], the
time-consuming part of setlocalversion goes from
$ time git describe --match=v6.12-rc5 c1e939a21eb1
v6.12-rc5-44-gc1e939a21eb1
real 0m1.210s
to
$ time git rev-list --count --left-right v6.12-rc5..c1e939a21eb1
0 44
real 0m0.037s
[1] https://lore.kernel.org/git/20241101113910.GA2301440@coredump.intra.peff.net/
[2] https://lore.kernel.org/git/20241106192236.GC880133@coredump.intra.peff.net/
[3] https://lore.kernel.org/lkml/309549cafdcfe50c4fceac3263220cc3d8b109b2.1730337435.git.jpoimboe@kernel.org/
Reported-by: Sean Christopherson <seanjc@google.com>
Closes: https://lore.kernel.org/lkml/ZPtlxmdIJXOe0sEy@google.com/
Reported-by: Josh Poimboeuf <jpoimboe@kernel.org>
Closes: https://lore.kernel.org/lkml/309549cafdcfe50c4fceac3263220cc3d8b109b2.1730337435.git.jpoimboe@kernel.org/
Tested-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Replace lz4c with lz4 for kernel image compression.
Although lz4 and lz4c are functionally similar, lz4c has been deprecated
upstream since 2018. Since as early as Ubuntu 16.04 and Fedora 25, lz4
and lz4c have been packaged together, making it safe to update the
requirement from lz4c to lz4.
Consequently, some distributions and build systems, such as OpenEmbedded,
have fully transitioned to using lz4. OpenEmbedded core adopted this
change in commit fe167e082cbd ("bitbake.conf: require lz4 instead of
lz4c"), causing compatibility issues when building the mainline kernel
in the latest OpenEmbedded environment, as seen in the errors below.
This change also updates the LZ4 compression commands to make it backward
compatible by replacing stdin and stdout with the '-' option, due to some
unclear reason, the stdout keyword does not work for lz4 and '-' works for
both. In addition, this modifies the legacy '-c1' with '-9' which is also
compatible with both. This fixes the mainline kernel build failures with
the latest master OpenEmbedded builds associated with the mentioned
compatibility issues.
LZ4 arch/arm/boot/compressed/piggy_data
/bin/sh: 1: lz4c: not found
...
...
ERROR: oe_runmake failed
Link: https://github.com/lz4/lz4/pull/553
Suggested-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This reverts commit 54babdc0343f ("kbuild: Disable KCSAN for
autogenerated *.mod.c intermediaries").
Now that objtool is enabled for *.mod.c, there is no need to filter
out CFLAGS_KCSAN.
I no longer see "Unpatched return thunk in use. This should not happen!"
error with KCSAN when loading a module.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Currently, objtool is disabled in scripts/Makefile.{modfinal,vmlinux}.
This commit moves rule_cc_o_c and rule_as_o_S to scripts/Makefile.lib
and set objtool-enabled to y there.
With this change, *.mod.o, .module-common.o, builtin-dtb.o, and
vmlinux.export.o will now be covered by objtool.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The cmd_cc_o_c and cmd_as_o_S macros are duplicated in
scripts/Makefile.{build,modfinal,vmlinux}.
This commit factors them out to scripts/Makefile.lib.
No functional changes are intended.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This rule is unnecessary because you can generate foo/bar.symtypes
as a side effect using:
$ make KBUILD_SYMTYPES=1 foo/bar.o
While compiling *.o is slower than preprocessing, the impact is
negligible. I prioritize keeping the code simpler.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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There is no need to pass '-r /dev/null', which is no-op.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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Unless an explicit O= option is provided, external module builds must
start from the kernel directory.
This can be achieved by using the -C option:
$ make -C /path/to/kernel M=/path/to/external/module
This commit allows starting external module builds from any directory,
so you can also do the following:
$ make -f /path/to/kernel/Makefile M=/path/to/external/module
The key difference is that the -C option changes the working directory
and parses the Makefile located there, while the -f option only
specifies the Makefile to use.
As shown in the examples in Documentation/kbuild/modules.rst, external
modules usually have a wrapper Makefile that allows you to build them
without specifying any make arguments. The Makefile typically contains
a rule as follows:
KDIR ?= /path/to/kernel
default:
$(MAKE) -C $(KDIR) M=$(CURDIR) $(MAKECMDGOALS)
The log will appear as follows:
$ make
make -C /path/to/kernel M=/path/to/external/module
make[1]: Entering directory '/path/to/kernel'
make[2]: Entering directory '/path/to/external/module'
CC [M] helloworld.o
MODPOST Module.symvers
CC [M] helloworld.mod.o
CC [M] .module-common.o
LD [M] helloworld.ko
make[2]: Leaving directory '/path/to/external/module'
make[1]: Leaving directory '/path/to/kernel'
This changes the working directory twice because the -C option first
switches to the kernel directory, and then Kbuild internally recurses
back to the external module directory.
With this commit, the wrapper Makefile can directly include the kernel
Makefile:
KDIR ?= /path/to/kernel
export KBUILD_EXTMOD := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))
include $(KDIR)/Makefile
This avoids unnecessary sub-make invocations:
$ make
CC [M] helloworld.o
MODPOST Module.symvers
CC [M] helloworld.mod.o
CC [M] .module-common.o
LD [M] helloworld.ko
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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When Kbuild starts building in a separate output directory, it generates
a wrapper Makefile, allowing you to invoke 'make' from the output
directory.
This commit makes it more convenient, so you can invoke 'make' without
M= or MO=.
First, you need to build external modules in a separate directory:
$ make M=/path/to/module/source/dir MO=/path/to/module/build/dir
Once the wrapper Makefile is generated in /path/to/module/build/dir,
you can proceed as follows:
$ cd /path/to/module/build/dir
$ make
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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Keep the consistent behavior when this Makefile is invoked from another
directory.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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This commit makes -fmacro-prefix-map work for external modules built in
a separate output directory. It improves the reproducibility of external
modules and provides the benefits described in commit a73619a845d5
("kbuild: use -fmacro-prefix-map to make __FILE__ a relative path").
When building_out_of_srctree is not defined (e.g., when the kernel or
external module is built in the source directory), this option is
unnecessary.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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There has been a long-standing request to support building external
modules in a separate build directory.
This commit introduces a new environment variable, KBUILD_EXTMOD_OUTPUT,
and its shorthand Make variable, MO.
A simple usage:
$ make -C <kernel-dir> M=<module-src-dir> MO=<module-build-dir>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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With the previous changes, $(extmod_prefix), $(MODORDER), and
$(MODULES_NSDEPS) are constant. (empty, modules.order, and
modules.nsdeps, respectively).
Remove these variables and hard-code their values.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
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Currently, Kbuild always operates in the output directory of the kernel,
even when building external modules. This increases the risk of external
module Makefiles attempting to write to the kernel directory.
This commit switches the working directory to the external module
directory, allowing the removal of the $(KBUILD_EXTMOD)/ prefix from
some build artifacts.
The command for building external modules maintains backward
compatibility, but Makefiles that rely on working in the kernel
directory may break. In such cases, $(objtree) and $(srctree) should
be used to refer to the output and source directories of the kernel.
The appearance of the build log will change as follows:
[Before]
$ make -C /path/to/my/linux M=/path/to/my/externel/module
make: Entering directory '/path/to/my/linux'
CC [M] /path/to/my/externel/module/helloworld.o
MODPOST /path/to/my/externel/module/Module.symvers
CC [M] /path/to/my/externel/module/helloworld.mod.o
CC [M] /path/to/my/externel/module/.module-common.o
LD [M] /path/to/my/externel/module/helloworld.ko
make: Leaving directory '/path/to/my/linux'
[After]
$ make -C /path/to/my/linux M=/path/to/my/externel/module
make: Entering directory '/path/to/my/linux'
make[1]: Entering directory '/path/to/my/externel/module'
CC [M] helloworld.o
MODPOST Module.symvers
CC [M] helloworld.mod.o
CC [M] .module-common.o
LD [M] helloworld.ko
make[1]: Leaving directory '/path/to/my/externel/module'
make: Leaving directory '/path/to/my/linux'
Printing "Entering directory" twice is cumbersome. This will be
addressed later.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These add a common init function for arch-specific ACPI
initialization, clean up idle states initialization in the ACPI
processor_idle driver and update quirks:
- Introduce acpi_arch_init() for architecture-specific ACPI subsystem
initialization (Miao Wang)
- Clean up Asus quirks in acpi_quirk_skip_dmi_ids[] and add a quirk
to skip I2C clients on Acer Iconia One 8 A1-840 (Hans de Goede)
- Make the ACPI processor_idle driver use acpi_idle_play_dead() for
all idle states regardless of their types (Rafael Wysocki)"
* tag 'acpi-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: introduce acpi_arch_init()
ACPI: x86: Clean up Asus entries in acpi_quirk_skip_dmi_ids[]
ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 8 A1-840
ACPI: processor_idle: Use acpi_idle_play_dead() for all C-states
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull morepower management updates from Rafael Wysocki:
"These update the OPP (Operating Performance Points) DT bindings for
ti-cpu (Dhruva Gole) and remove unused declarations from the OPP
header file (Zhang Zekun)"
* tag 'pm-6.13-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
dt-bindings: opp: operating-points-v2-ti-cpu: Describe opp-supported-hw
OPP: Remove unused declarations in header file
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These fix a Power Allocator thermal governor issue reported recently,
update the Intel int3400 thermal driver and simplify DT data parsing
in the thermal control subsystem:
- Add a NULL pointer check that was missed by recent modifications of
the Power Allocator thermal governor (Rafael Wysocki)
- Remove the data_vault attribute_group from int3400 because it is
only used for exposing one binary file that can be exposed directly
(Thomas Weißschuh)
- Prevent the current_uuid sysfs attribute in int3400 from mistakenly
treating valid UUID values as invalid on some older systems
(Srinivas Pandruvada)
- Use the cleanup.h mechanics to simplify DT data parsing in the
thermal core and some drivers (Krzysztof Kozlowski)"
* tag 'thermal-6.13-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: sun8i: Use scoped device node handling to simplify error paths
thermal: tegra: Simplify with scoped for each OF child loop
thermal: qcom-spmi-adc-tm5: Simplify with scoped for each OF child loop
thermal: of: Use scoped device node handling to simplify of_thermal_zone_find()
thermal: of: Use scoped memory and OF handling to simplify thermal_of_trips_init()
thermal: of: Simplify thermal_of_should_bind with scoped for each OF child
thermal: gov_power_allocator: Add missing NULL pointer check
thermal: int3400: Remove unneeded data_vault attribute_group
thermal: int3400: Fix reading of current_uuid for active policy
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git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull more iommufd updates from Jason Gunthorpe:
"Change the driver callback op domain_alloc_user() into two ops:
domain_alloc_paging_flags() and domain_alloc_nesting() that better
describe what the ops are expected to do.
There will be per-driver cleanup based on this going into the next
cycle via the driver trees"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommu: Rename ops->domain_alloc_user() to domain_alloc_paging_flags()
iommu: Add ops->domain_alloc_nested()
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A write which goes past the end of the bdev in blkdev_write_iter() will
be truncated. Truncating cannot tolerated for an atomic write, so error
that condition.
Fixes: caf336f81b3a ("block: Add fops atomic write support")
Signed-off-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241127092318.632790-1-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_pages_unmap() is a bit tricky in trying to figure whether the pages
were previously vmap'ed or not. In particular If there is juts one page
it belives there is no need to vunmap. Paired io_pages_map(), however,
could've failed io_mem_alloc_compound() and attempted to
io_mem_alloc_single(), which does vmap, and that leads to unpaired vmap.
The solution is to fail if io_mem_alloc_compound() can't allocate a
single page. That's the easiest way to deal with it, and those two
functions are getting removed soon, so no need to overcomplicate it.
Cc: stable@vger.kernel.org
Fixes: 3ab1db3c6039e ("io_uring: get rid of remap_pfn_range() for mapping rings/sqes")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/477e75a3907a2fe83249e49c0a92cd480b2c60e0.1732569842.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
- structure optimization of few bus structures and header updates
- support for 2.0 disco spec
- amd driver updates for acp revision, refactoring code and support for
acp6.3
- soft reset support for cadence driver
* tag 'soundwire-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (24 commits)
soundwire: Minor formatting fixups in sdw.h header
soundwire: Update the includes on the sdw.h header
soundwire: cadence: clear MCP BLOCK_WAKEUP in init
soundwire: cadence: add soft-reset on startup
soundwire: intel_auxdevice: add kernel parameter for mclk divider
soundwire: mipi-disco: add support for DP0/DPn 'lane-list' property
soundwire: mipi-disco: add new properties from 2.0 spec
soundwire: mipi-disco: add comment on DP0-supported property
soundwire: mipi-disco: add support for peripheral channelprepare timeout
soundwire: mipi_disco: add support for clock-scales property
soundwire: mipi-disco: add error handling for property array read
soundwire: mipi-disco: remove DPn audio-modes
soundwire: optimize sdw_dpn_prop
soundwire: optimize sdw_dp0_prop
soundwire: optimize sdw_slave_prop
soundwire: optimize sdw_bus structure
soundwire: optimize sdw_master_prop
soundwire: optimize sdw_stream_runtime memory layout
soundwire: mipi_disco: add MIPI-specific property_read_bool() helpers
soundwire: Correct some typos in comments
...
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
"New hardware support:
- ST STM32MP25 combophy support
- Sparx5 support for lan969x serdes and updates to driver to support
this
- NXP PTN3222 eUSB2 to USB2 redriver
- Qualcomm SAR2130P eusb2 support, QCS8300 USB DW3 and QMP USB2
support, X1E80100 QMP PCIe PHY Gen4 support, QCS615 and QCS8300 QMP
UFS PHY support and SA8775P eDP PHY support
- Rockchip rk3576 usbdp and rk3576 usb2 phy support
- Binding for Microchip ATA6561 can phy
Updates:
- Freescale driver updates from hdmi support
- Conversion of rockchip rk3228 hdmi phy binding to yaml
- Broadcom usb2-phy deprecated support dropped and USB init array
update for BCM4908
- TI USXGMII mode support in J7200
- Switch back to platform_driver::remove() subsystem update"
* tag 'phy-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (59 commits)
phy: qcom: qmp: Fix lecacy-legacy typo
phy: lan969x-serdes: add support for lan969x serdes driver
dt-bindings: phy: sparx5: document lan969x
phy: sparx5-serdes: add support for branching on chip type
phy: sparx5-serdes: add indirection layer to register macros
phy: sparx5-serdes: add function for getting the CMU index
phy: sparx5-serdes: add ops to match data
phy: sparx5-serdes: add constant for the number of CMU's
phy: sparx5-serdes: add constants to match data
phy: sparx5-serdes: add support for private match data
phy: bcm-ns-usb2: drop support for old binding variant
dt-bindings: phy: bcm-ns-usb2-phy: drop deprecated variant
dt-bindings: phy: Add QMP UFS PHY compatible for QCS8300
dt-bindings: phy: qcom: snps-eusb2: Add SAR2130P compatible
dt-bindings: phy: ti,tcan104x-can: Document Microchip ATA6561
phy: airoha: Fix REG_CSR_2L_RX{0,1}_REV0 definitions
phy: airoha: Fix REG_CSR_2L_JCPLL_SDM_HREN config in airoha_pcie_phy_init_ssc_jcpll()
phy: airoha: Fix REG_PCIE_PMA_TX_RESET config in airoha_pcie_phy_init_csr_2l()
phy: airoha: Fix REG_CSR_2L_PLL_CMN_RESERVE0 config in airoha_pcie_phy_init_clk_out()
phy: phy-rockchip-samsung-hdptx: Don't request RST_PHY/RST_ROPLL/RST_LCPLL
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New hardware support:
- Qualcomm SAR2130P GPI dma support
- Sifive PIC64GX pdma support
- Rcar r7s72100 support and associated updates
Updates:
- STM32 DMA3 updates for packing/unpacking mode and prevention of
additional xfers
- Simplification of devm_acpi_dma_controller_register() and associate
cleanup including headers
- loongson prefix renames
- Switch back to platform_driver::remove() subsystem update"
* tag 'dmaengine-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: loongson2-apb: Rename the prefix ls2x to loongson2
dt-bindings: dma: sifive pdma: Add PIC64GX to compatibles
dmaengine: fix typo in the comment
dmaengine: stm32-dma3: clamp AXI burst using match data
dmaengine: stm32-dma3: prevent LL refactoring thanks to DT configuration
dt-bindings: dma: stm32-dma3: prevent additional transfers
dmaengine: stm32-dma3: refactor HW linked-list to optimize memory accesses
dmaengine: stm32-dma3: prevent pack/unpack thanks to DT configuration
dt-bindings: dma: stm32-dma3: prevent packing/unpacking mode
dmaengine: idxd: Move DSA/IAA device IDs to IDXD driver
dt-bindings: dma: qcom,gpi: Add SAR2130P compatible
dmaengine: Switch back to struct platform_driver::remove()
dmaengine: ep93xx: Fix unsigned compared against 0
dmaengine: acpi: Clean up headers
dmaengine: acpi: Simplify devm_acpi_dma_controller_register()
dmaengine: acpi: Drop unused devm_acpi_dma_controller_free()
dmaengine: sh: rz-dmac: add r7s72100 support
dt-bindings: dma: rz-dmac: Document RZ/A1H SoC
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"Apart from the gpio-exar fix which addresses an older issue, they all
fix regressions from this release cycle:
- fix missing GPIO chip labels in gpio-zevio and gpio-altera
- for the latter: also set GPIO base to -1 to use dynamic range
allocation
- fix value setting with external pull-up/down resistor in gpio-exar
- use the recommended IDA interfaces in gpio-mpsse"
* tag 'gpio-fixes-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mpsse: Remove usage of the deprecated ida_simple_xx() API
gpio: exar: set value when external pull-up or pull-down is present
gpio: altera: Add missed base and label initialisations
gpio: zevio: Add missed label initialisation
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Pull virtio updates from Michael Tsirkin:
"A small number of improvements all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_vdpa: remove redundant check on desc
virtio_fs: store actual queue index in mq_map
virtio_fs: add informative log for new tag discovery
virtio: Make vring_new_virtqueue support packed vring
virtio_pmem: Add freeze/restore callbacks
vdpa/mlx5: Fix suboptimal range on iotlb iteration
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Pull VFIO updates from Alex Williamson:
- Constify an unmodified structure used in linking vfio and kvm
(Christophe JAILLET)
- Add ID for an additional hardware SKU supported by the nvgrace-gpu
vfio-pci variant driver (Ankit Agrawal)
- Fix incorrect signed cast in QAT vfio-pci variant driver, negating
test in check_add_overflow(), though still caught by later tests
(Giovanni Cabiddu)
- Additional debugfs attributes exposed in hisi_acc vfio-pci variant
driver for migration debugging (Longfang Liu)
- Migration support is added to the virtio vfio-pci variant driver,
becoming the primary feature of the driver while retaining emulation
of virtio legacy support as a secondary option (Yishai Hadas)
- Fixes to a few unwind flows in the mlx5 vfio-pci driver discovered
through reviews of the virtio variant driver (Yishai Hadas)
- Fix an unlikely issue where a PCI device exposed to userspace with an
unknown capability at the base of the extended capability chain can
overflow an array index (Avihai Horon)
* tag 'vfio-v6.13-rc1' of https://github.com/awilliam/linux-vfio:
vfio/pci: Properly hide first-in-list PCIe extended capability
vfio/mlx5: Fix unwind flows in mlx5vf_pci_save/resume_device_data()
vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()
vfio/virtio: Enable live migration once VIRTIO_PCI was configured
vfio/virtio: Add PRE_COPY support for live migration
vfio/virtio: Add support for the basic live migration functionality
virtio-pci: Introduce APIs to execute device parts admin commands
virtio: Manage device and driver capabilities via the admin commands
virtio: Extend the admin command to include the result size
virtio_pci: Introduce device parts access commands
Documentation: add debugfs description for hisi migration
hisi_acc_vfio_pci: register debugfs for hisilicon migration driver
hisi_acc_vfio_pci: create subfunction for data reading
hisi_acc_vfio_pci: extract public functions for container_of
vfio/qat: fix overflow check in qat_vf_resume_write()
vfio/nvgrace-gpu: Add a new GH200 SKU to the devid table
kvm/vfio: Constify struct kvm_device_ops
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-v updates from Palmer Dabbelt:
- Support for pointer masking in userspace
- Support for probing vector misaligned access performance
- Support for qspinlock on systems with Zacas and Zabha
* tag 'riscv-for-linus-6.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (38 commits)
RISC-V: Remove unnecessary include from compat.h
riscv: Fix default misaligned access trap
riscv: Add qspinlock support
dt-bindings: riscv: Add Ziccrse ISA extension description
riscv: Add ISA extension parsing for Ziccrse
asm-generic: ticket-lock: Add separate ticket-lock.h
asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock
riscv: Implement xchg8/16() using Zabha
riscv: Implement arch_cmpxchg128() using Zacas
riscv: Improve zacas fully-ordered cmpxchg()
riscv: Implement cmpxchg8/16() using Zabha
dt-bindings: riscv: Add Zabha ISA extension description
riscv: Implement cmpxchg32/64() using Zacas
riscv: Do not fail to build on byte/halfword operations with Zawrs
riscv: Move cpufeature.h macros into their own header
KVM: riscv: selftests: Add Smnpm and Ssnpm to get-reg-list test
RISC-V: KVM: Allow Smnpm and Ssnpm extensions for guests
riscv: hwprobe: Export the Supm ISA extension
riscv: selftests: Add a pointer masking test
riscv: Allow ptrace control of the tagged address ABI
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Fix build failure with GCC 15 due to default -std=gnu23
- Add PREEMPT_RT/PREEMPT_LAZY support
- Add I2S in DTS for Loongson-2K1000/Loongson-2K2000
- Some bug fixes and other small changes
* tag 'loongarch-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: Update Loongson-3 default config file
LoongArch: dts: Add I2S support to Loongson-2K2000
LoongArch: dts: Add I2S support to Loongson-2K1000
LoongArch: Allow to enable PREEMPT_LAZY
LoongArch: Allow to enable PREEMPT_RT
LoongArch: Select HAVE_POSIX_CPU_TIMERS_TASK_WORK
LoongArch: Fix sleeping in atomic context for PREEMPT_RT
LoongArch: Reduce min_delta for the arch clockevent device
LoongArch: BPF: Sign-extend return values
LoongArch: Fix build failure with GCC 15 (-std=gnu23)
LoongArch: Explicitly specify code model in Makefile
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
- replace hardcoded strings with str_on_off() in report_meminit()
- initialize reserved pages to MIGRATE_MOVABLE when deferred struct
page initialization is enabled so that if the reserved pages are
freed they are put on movable free lists like it is done now when
deferred struct page initialization is disabled
* tag 'memblock-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: uniformly initialize all reserved pages to MIGRATE_MOVABLE
mm: Use str_on_off() helper function in report_meminit()
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull modules updates from Luis Chamberlain:
- The whole caching of module code into huge pages by Mike Rapoport is
going in through Andrew Morton's tree due to some other code
dependencies. That's really the biggest highlight for Linux kernel
modules in this release. With it we share huge pages for modules,
starting off with x86. Expect to see that soon through Andrew!
- Helge Deller addressed some lingering low hanging fruit alignment
enhancements by. It is worth pointing out that from his old patch
series I dropped his vmlinux.lds.h change at Masahiro's request as he
would prefer this to be specified in asm code [0].
[0] https://lore.kernel.org/all/20240129192644.3359978-5-mcgrof@kernel.org/T/#m9efef5e700fbecd28b7afb462c15eed8ba78ef5a
- Matthew Maurer and Sami Tolvanen have been tag teaming to help get us
closer to a modversions for Rust. In this cycle we take in quite a
lot of the refactoring for ELF validation. I expect modversions for
Rust will be merged by v6.14 as that code is mostly ready now.
- Adds a new modules selftests: kallsyms which helps us tests
find_symbol() and the limits of kallsyms on Linux today.
- We have a realtime mailing list to kernel-ci testing for modules now
which relies and combines patchwork, kpd and kdevops:
https://patchwork.kernel.org/project/linux-modules/list/
https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/README.md
https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/kernel-ci-kpd.md
https://github.com/linux-kdevops/kdevops/blob/main/docs/kernel-ci/linux-modules-kdevops-ci.md
If you want to help avoid Linux kernel modules regressions, now its
simple, just add a new Linux modules sefltests under
tools/testing/selftests/module/ That is it. All new selftests will be
used and leveraged automatically by the CI.
* tag 'modules-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
tests/module/gen_test_kallsyms.sh: use 0 value for variables
scripts: Remove export_report.pl
selftests: kallsyms: add MODULE_DESCRIPTION
selftests: add new kallsyms selftests
module: Reformat struct for code style
module: Additional validation in elf_validity_cache_strtab
module: Factor out elf_validity_cache_strtab
module: Group section index calculations together
module: Factor out elf_validity_cache_index_str
module: Factor out elf_validity_cache_index_sym
module: Factor out elf_validity_cache_index_mod
module: Factor out elf_validity_cache_index_info
module: Factor out elf_validity_cache_secstrings
module: Factor out elf_validity_cache_sechdrs
module: Factor out elf_validity_ehdr
module: Take const arg in validate_section_offset
modules: Add missing entry for __ex_table
modules: Ensure 64-bit alignment on __ksymtab_* sections
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Merge updates of Intel int3400 thermal driver for 6.13-rc1:
- Remove the data_vault attribute_group from int3400 because it is only
used for exposing one binary file that can be exposed directly (Thomas
Weißschuh).
- Prevent the current_uuid sysfs attribute in int3400 from mistakenly
treating valid UUID values as invalid on some older systems (Srinivas
Pandruvada).
* thermal-intel:
thermal: int3400: Remove unneeded data_vault attribute_group
thermal: int3400: Fix reading of current_uuid for active policy
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Merge miscellaneous ACPI changes and x86-specific ACPI updates for
6.13-rc1:
- Introduce acpi_arch_init() for architecture-specific ACPI subsystem
initialization (Miao Wang).
- Clean up Asus quirks in acpi_quirk_skip_dmi_ids[] and add a quirk
to skip I2C clients on Acer Iconia One 8 A1-840 (Hans de Goede).
* acpi-misc:
ACPI: introduce acpi_arch_init()
* acpi-x86:
ACPI: x86: Clean up Asus entries in acpi_quirk_skip_dmi_ids[]
ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 8 A1-840
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Merge OPP (Operating Performance Points) changes for 6.13-rc1:
- Describe opp-supported-hw property for ti-cpu (Dhruva Gole).
- Remove unused declarations from the OPP header file (Zhang Zekun).
* pm-opp:
dt-bindings: opp: operating-points-v2-ti-cpu: Describe opp-supported-hw
OPP: Remove unused declarations in header file
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KVM/riscv changes for 6.13 part #2
- Svade and Svadu extension support for Host and Guest/VM
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into HEAD
RISC-V Paches for the 6.13 Merge Window, Part 1
* Support for pointer masking in userspace,
* Support for probing vector misaligned access performance.
* Support for qspinlock on systems with Zacas and Zabha.
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix a few iomap bugs
- Fix a wrong argument in backing file callback
- Fix security mount option retrieval in statmount()
- Cleanup how statmount() handles unescaped options
- Add a missing inode_owner_or_capable() check for setting write hints
- Clear the return value in read_kcore_iter() after a successful
iov_iter_zero()
- Fix a mount_setattr() selftest
- Fix function signature in mount api documentation
- Remove duplicate include header in the fscache code
* tag 'vfs-6.13-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs/backing_file: fix wrong argument in callback
fs_parser: update mount_api doc to match function signature
fs: require inode_owner_or_capable for F_SET_RW_HINT
fs/proc/kcore.c: Clear ret value in read_kcore_iter after successful iov_iter_zero
statmount: fix security option retrieval
statmount: clean up unescaped option handling
fscache: Remove duplicate included header
iomap: elide flush from partial eof zero range
iomap: lift zeroed mapping handling into iomap_zero_range()
iomap: reset per-iter state on non-error iter advances
iomap: warn on zero range of a post-eof folio
selftests/mount_setattr: Fix failures on 64K PAGE_SIZE kernels
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull deny_write_access revert from Christian Brauner:
"It turns out that the mold linker relies on the deny_write_access()
mechanism for executables.
The mold linker tries to open a file for writing and if ETXTBSY is
returned mold falls back to creating a new file"
* tag 'vfs-6.13.exec.deny_write_access.revert' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
Revert "fs: don't block i_writecount during exec"
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21MES00B00
New ThinkPads need new quirk entries. Ilya has tested this one.
Laptop product id is 21MES00B00, though the shorthand 21ME works.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219533
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Zverev <ilya@zverev.info>
Link: https://patch.msgid.link/20241127134420.14471-1-ilya@zverev.info
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit 8a13897fb0daa ("mm: userfaultfd: support UFFDIO_POISON for
hugetlbfs") added support for PTE_MARKER_POISONED for hugetlbfs, but
PTE_MARKER also needs support for swap entries. For s390, swap entries
were only supported on PTE level, not on the PMD/PUD levels that are used
for large hugetlbfs mappings.
Therefore, when writing a PTE_MARKER_POISONED entry, the resulting entry
on PMD/PUD level would be an invalid / empty entry. Further access would
then generate a pagefault loop, instead of the expected SIGBUS. It is a
loop inside the kernel, but interruptible and uffd fault handling also
calls schedule() in between, so at least it won't completely block the
system.
Previous commits prepared support for swap entries on PMD/PUD levels.
PTE_MARKER support for hugetlbfs can now be enabled by simply adding an
extra is_pte_marker() check to huge_pte_none_mostly(). Fault handling
code also needs to be adjusted to expect the VM_FAULT_HWPOISON_LARGE
fault flag, which was not possible on s390 before.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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