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Linux kernel
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In order to build the documentation, use ``make htmldocs`` or
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several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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We started disabling '-Warray-bounds' for gcc-12 originally on s390,
because it resulted in some warnings that weren't realistically fixable
(commit 8b202ee21839: "s390: disable -Warray-bounds").
That s390-specific issue was then found to be less common elsewhere, but
generic (see f0be87c42cbd: "gcc-12: disable '-Warray-bounds' universally
for now"), and then later expanded the version check was expanded to
gcc-11 (5a41237ad1d4: "gcc: disable -Warray-bounds for gcc-11 too").
And it turns out that I was much too optimistic in thinking that it's
all going to go away, and here we are with gcc-13 showing all the same
issues. So instead of expanding this one version at a time, let's just
disable it for gcc-11+, and put an end limit to it only when we actually
find a solution.
Yes, I'm sure some of this is because the kernel just does odd things
(like our "container_of()" use, but also knowingly playing games with
things like linker tables and array layouts).
And yes, some of the warnings are likely signs of real bugs, but when
there are hundreds of false positives, that doesn't really help.
Oh well.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull Kbuild fixes from Masahiro Yamada:
- Fix the prefix in the kernel source tarball
- Fix a typo in the copyright file in Debian package
* tag 'kbuild-fixes-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: use proper prefix for tarballs to fix rpm-pkg build error
kbuild: deb-pkg: Fix a spell typo in mkdebian script
Pull irq fix from Borislav Petkov:
- Remove an over-zealous sanity check of the array of MSI-X vectors to
be allocated for a device
* tag 'irq_urgent_for_v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Remove over-zealous hardware size check in pci_msix_validate_entries()
Since commit f8d94c4e403c ("kbuild: do not create intermediate *.tar
for source tarballs"), 'make rpm-pkg' fails because the prefix of the
source tarball is 'linux.tar/' instead of 'linux/'. $(basename $@)
strips only '.gz' from the filename linux.tar.gz.
You need to strip two suffixes from compressed tarballs and one suffix
from uncompressed tarballs (for example 'perf-6.3.0.tar' generated by
'make perf-tar-src-pkg').
One tricky fix might be --prefix=$(firstword $(subst .tar, ,$@))/
but I think it is better to hard-code the prefix.
Fixes: f8d94c4e403c ("kbuild: do not create intermediate *.tar for source tarballs")
Reported-by: Jiwei Sun <sunjw10@lenovo.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Pull x86 fix from Borislav Petkov
- Fix for older binutils which do not support C-syntax constant
suffixes
* tag 'x86_urgent_for_v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/alternatives: Do not use integer constant suffixes in inline asm
pci_msix_validate_entries() validates the entries array which is handed in
by the caller for a MSI-X interrupt allocation. Aside of consistency
failures it also detects a failure when the size of the MSI-X hardware table
in the device is smaller than the size of the entries array.
That's wrong for the case of range allocations where the caller provides
the minimum and the maximum number of vectors to allocate, when the
hardware size is greater or equal than the mininum, but smaller than the
maximum.
Remove the hardware size check completely from that function and just
ensure that the entires array up to the maximum size is consistent.
The limitation and range checking versus the hardware size happens
independently of that afterwards anyway because the entries array is
optional.
Fixes: 4644d22eb673 ("PCI/MSI: Validate MSI-X contiguous restriction early")
Reported-by: David Laight <David.Laight@aculab.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87v8i3sg62.ffs@tglx
Signed-off-by: Woody Suwalski <terraluna977@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Pull input fixes from Dmitry Torokhov:
- a check in pegasus-notetaker driver to validate the type of pipe when
probing a new device
- a fix for Cypress touch controller to correctly parse maximum number
of touches.
* tag 'input-for-v6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cyttsp5 - fix sensing configuration data structure
Input: pegasus-notetaker - check pipe type when probing
The usage of the BIT() macro in inline asm code was introduced in 6.3 by
the commit in the Fixes tag. However, this macro uses "1UL" for integer
constant suffixes in its shift operation, while gas before 2.28 does not
support the "L" suffix after a number, and gas before 2.27 does not
support the "U" suffix, resulting in build errors such as the following
with such versions:
./arch/x86/include/asm/uaccess_64.h:124: Error: found 'L', expected: ')'
./arch/x86/include/asm/uaccess_64.h:124: Error: junk at end of line,
first unrecognized character is `L'
However, the currently minimal binutils version the kernel supports is
2.25.
There's a single use of this macro here, revert to (1 << 0) that works
with such older binutils.
As an additional info, the binutils PRs which add support for those
suffixes are:
https://sourceware.org/bugzilla/show_bug.cgi?id=19910
https://sourceware.org/bugzilla/show_bug.cgi?id=20732
[ bp: Massage and extend commit message. ]
Fixes: 5d1dd961e743 ("x86/alternatives: Add alt_instr.flags")
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/lkml/a9aae568-3046-306c-bd71-92c1fc8eeddc@linux.alibaba.com/
Pull MIPS fix from Thomas Bogendoerfer:
"Fix for link errors"
* tag 'mips-fixes_6.3_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Define RUNTIME_DISCARD_EXIT in LD script
Prior to this patch, the sensing configuration data was not parsed
correctly, breaking detection of max_tch. The vendor driver includes
this field. This change informs the driver about the correct maximum
number of simultaneous touch inputs.
Tested on a Pine64 PineNote with a modified touch screen controller
firmware.
Signed-off-by: hrdl <git@hrdl.eu>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20230411211651.3791304-1-git@hrdl.eu
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull perf fixes from Borislav Petkov:
- Fix "same task" check when redirecting event output
- Do not wait unconditionally for RCU on the event migration path if
there are no events to migrate
* tag 'perf_urgent_for_v6.3_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix the same task check in perf_event_set_output
perf: Optimize perf_pmu_migrate_context()
Pull scheduler fix from Borislav Petkov:
- Do not pull tasks to the local scheduling group if its average load
is higher than the average system load
* tag 'sched_urgent_for_v6.3_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix imbalance overflow
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