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Link: https://lore.kernel.org/r/20260115164143.482647486@linuxfoundation.org
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Slade Watkins <sr@sladewatkins.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20260109112117.407257400@linuxfoundation.org
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Slade Watkins <sr@sladewatkins.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Link: https://lore.kernel.org/r/20260110135319.581406700@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20251203152440.645416925@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Link: https://lore.kernel.org/r/20251204163841.693429967@linuxfoundation.org
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20251027183501.227243846@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Slade Watkins <sr@sladewatkins.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20251017145129.000176255@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20251013144314.549284796@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250930143820.537407601@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250922192403.524848428@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250917123329.576087662@linuxfoundation.org
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250907195607.664912704@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250908151840.509077218@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250902131930.509077918@linuxfoundation.org
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250826110930.769259449@linuxfoundation.org
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 936599ca514973d44a766b7376c6bbdc96b6a8cc upstream.
The userprogs infrastructure does not expect clang being used with GNU ld
and in that case uses /usr/bin/ld for linking, not the configured $(LD).
This fallback is problematic as it will break when cross-compiling.
Mixing clang and GNU ld is used for example when building for SPARC64,
as ld.lld is not sufficient; see Documentation/kbuild/llvm.rst.
Relax the check around --ld-path so it gets used for all linkers.
Fixes: dfc1b168a8c4 ("kbuild: userprogs: use correct lld when linking through clang")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Work around wrapping '--ld-path' in cc-option in older stable
branches due to older minimum LLVM version]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250812172948.675299901@linuxfoundation.org
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250722134328.384139905@linuxfoundation.org
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Ron Economos <re@w6rz.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250715130754.497128560@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250715163541.635746149@linuxfoundation.org
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250708162224.795155912@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250708180901.558453595@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>--
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250703143939.370927276@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250623130645.255320792@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250624123036.124991422@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1b71c2fb04e7a713abc6edde4a412416ff3158f2 upstream.
scripts/Makefile.clang was changed in the linked commit to move --target from
KBUILD_CFLAGS to KBUILD_CPPFLAGS, as that generally has a broader scope.
However that variable is not inspected by the userprogs logic,
breaking cross compilation on clang.
Use both variables to detect bitsize and target arguments for userprogs.
Fixes: feb843a469fb ("kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250602134319.723650984@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d0afcfeb9e3810ec89d1ffde1a0e36621bb75dca upstream.
A new on by default warning in clang [1] aims to flags instances where
const variables without static or thread local storage or const members
in aggregate types are not initialized because it can lead to an
indeterminate value. This is quite noisy for the kernel due to
instances originating from header files such as:
drivers/gpu/drm/i915/gt/intel_ring.h:62:2: error: default initialization of an object of type 'typeof (ring->size)' (aka 'const unsigned int') leaves the object uninitialized [-Werror,-Wdefault-const-init-var-unsafe]
62 | typecheck(typeof(ring->size), next);
| ^
include/linux/typecheck.h:10:9: note: expanded from macro 'typecheck'
10 | ({ type __dummy; \
| ^
include/net/ip.h:478:14: error: default initialization of an object of type 'typeof (rt->dst.expires)' (aka 'const unsigned long') leaves the object uninitialized [-Werror,-Wdefault-const-init-var-unsafe]
478 | if (mtu && time_before(jiffies, rt->dst.expires))
| ^
include/linux/jiffies.h:138:26: note: expanded from macro 'time_before'
138 | #define time_before(a,b) time_after(b,a)
| ^
include/linux/jiffies.h:128:3: note: expanded from macro 'time_after'
128 | (typecheck(unsigned long, a) && \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
include/linux/list.h:409:27: warning: default initialization of an object of type 'union (unnamed union at include/linux/list.h:409:27)' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe]
409 | struct list_head *next = smp_load_acquire(&head->next);
| ^
include/asm-generic/barrier.h:176:29: note: expanded from macro 'smp_load_acquire'
176 | #define smp_load_acquire(p) __smp_load_acquire(p)
| ^
arch/arm64/include/asm/barrier.h:164:59: note: expanded from macro '__smp_load_acquire'
164 | union { __unqual_scalar_typeof(*p) __val; char __c[1]; } __u; \
| ^
include/linux/list.h:409:27: note: member '__val' declared 'const' here
crypto/scatterwalk.c:66:22: error: default initialization of an object of type 'struct scatter_walk' with const member leaves the object uninitialized [-Werror,-Wdefault-const-init-field-unsafe]
66 | struct scatter_walk walk;
| ^
include/crypto/algapi.h:112:15: note: member 'addr' declared 'const' here
112 | void *const addr;
| ^
fs/hugetlbfs/inode.c:733:24: error: default initialization of an object of type 'struct vm_area_struct' with const member leaves the object uninitialized [-Werror,-Wdefault-const-init-field-unsafe]
733 | struct vm_area_struct pseudo_vma;
| ^
include/linux/mm_types.h:803:20: note: member 'vm_flags' declared 'const' here
803 | const vm_flags_t vm_flags;
| ^
Silencing the instances from typecheck.h is difficult because '= {}' is
not available in older but supported compilers and '= {0}' would cause
warnings about a literal 0 being treated as NULL. While it might be
possible to come up with a local hack to silence the warning for
clang-21+, it may not be worth it since -Wuninitialized will still
trigger if an uninitialized const variable is actually used.
In all audited cases of the "field" variant of the warning, the members
are either not used in the particular call path, modified through other
means such as memset() / memcpy() because the containing object is not
const, or are within a union with other non-const members.
Since this warning does not appear to have a high signal to noise ratio,
just disable it.
Cc: stable@vger.kernel.org
Link: https://github.com/llvm/llvm-project/commit/576161cb6069e2c7656a8ef530727a0f4aefff30 [1]
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Closes: https://lore.kernel.org/CA+G9fYuNjKcxFKS_MKPRuga32XbndkLGcY-PVuoSwzv6VWbY=w@mail.gmail.com/
Reported-by: Marcus Seyfarth <m.seyfarth@gmail.com>
Closes: https://github.com/ClangBuiltLinux/linux/issues/2088
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Apply change to Makefile instead of scripts/Makefile.extrawarn
due to lack of e88ca24319e4 in older stable branches]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250520125800.653047540@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250512172023.126467649@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250514125614.705014741@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250507183806.987408728@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20250508112609.711621924@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250429161051.743239894@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Ron Economos <re@w6rz.net>
Link: https://lore.kernel.org/r/20250501080849.930068482@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250423142624.409452181@linuxfoundation.org
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 84ffc79bfbf70c779e60218563f2f3ad45288671 upstream.
A recent optimization change in LLVM [1] aims to transform certain loop
idioms into calls to strlen() or wcslen(). This change transforms the
first while loop in UniStrcat() into a call to wcslen(), breaking the
build when UniStrcat() gets inlined into alloc_path_with_tree_prefix():
ld.lld: error: undefined symbol: wcslen
>>> referenced by nls_ucs2_utils.h:54 (fs/smb/client/../../nls/nls_ucs2_utils.h:54)
>>> vmlinux.o:(alloc_path_with_tree_prefix)
>>> referenced by nls_ucs2_utils.h:54 (fs/smb/client/../../nls/nls_ucs2_utils.h:54)
>>> vmlinux.o:(alloc_path_with_tree_prefix)
Disable this optimization with '-fno-builtin-wcslen', which prevents the
compiler from assuming that wcslen() is available in the kernel's C
library.
[ More to the point - it's not that we couldn't implement wcslen(), it's
that this isn't an optimization at all in the context of the kernel.
Replacing a simple inlined loop with a function call to the same loop
is just stupid and pointless if you don't have long strings and fancy
libraries with vectorization support etc.
For the regular 'strlen()' cases, we want the compiler to do this in
order to handle the trivial case of constant strings. And we do have
optimized versions of 'strlen()' on some architectures. But for
wcslen? Just no. - Linus ]
Cc: stable@vger.kernel.org
Link: https://github.com/llvm/llvm-project/commit/9694844d7e36fd5e01011ab56b64f27b867aa72d [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[nathan: Resolve small conflict in older trees]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250408104820.266892317@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20250409115832.610030955@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250403151620.960551909@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Munehisa Kamata <kamatam@amazon.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250325122156.633329074@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250326154349.272647840@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20250328074420.301061796@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Frank Scheiner <frank.scheiner@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 49a9ef76740206d52e7393f6fe25fc764de8df32 ]
Adds support for out-of-tree rust modules to use the `rust-analyzer`
make target to generate the rust-project.json file.
The change involves adding an optional parameter `external_src` to the
`generate_rust_analyzer.py` which expects the path to the out-of-tree
module's source directory. When this parameter is passed, I have chosen
not to add the non-core modules (samples and drivers) into the result
since these are not expected to be used in third party modules. Related
changes are also made to the Makefile and rust/Makefile allowing the
`rust-analyzer` target to be used for out-of-tree modules as well.
Link: https://github.com/Rust-for-Linux/linux/pull/914
Link: https://github.com/Rust-for-Linux/rust-out-of-tree-module/pull/2
Signed-off-by: Vinay Varma <varmavinaym@gmail.com>
Link: https://lore.kernel.org/r/20230411091714.130525-1-varmavinaym@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Stable-dep-of: 2e0f91aba507 ("scripts: generate_rust_analyzer: add missing macros deps")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Link: https://lore.kernel.org/r/20250310170427.529761261@linuxfoundation.org
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit dfc1b168a8c4b376fa222b27b97c2c4ad4b786e1 upstream.
The userprog infrastructure links objects files through $(CC).
Either explicitly by manually calling $(CC) on multiple object files or
implicitly by directly compiling a source file to an executable.
The documentation at Documentation/kbuild/llvm.rst indicates that ld.lld
would be used for linking if LLVM=1 is specified.
However clang instead will use either a globally installed cross linker
from $PATH called ${target}-ld or fall back to the system linker, which
probably does not support crosslinking.
For the normal kernel build this is not an issue because the linker is
always executed directly, without the compiler being involved.
Explicitly pass --ld-path to clang so $(LD) is respected.
As clang 13.0.1 is required to build the kernel, this option is available.
Fixes: 7f3a59db274c ("kbuild: add infrastructure to build userspace programs")
Cc: stable@vger.kernel.org # needs wrapping in $(cc-option) for < 6.9
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: use cc-option for 6.6 and older, as those trees support back to
clang-11]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250305174505.437358097@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250306151414.484343862@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250219082652.891560343@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Slade Watkins <srw@sladewatkins.net>
Tested-by: Ron Economos <re@w6rz.net>
Reviewed-by: Mark Brown <broonie@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250220104545.805660879@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Slade Watkins <srw@sladewatkins.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e397a603e49cc7c7c113fad9f55a09637f290c34 upstream.
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>
Cc: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250130140133.825446496@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: kernelci.org bot <bot@kernelci.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250121174521.568417761@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: SeongJae Park <sj@kernel.org>
Link: https://lore.kernel.org/r/20250122073827.056636718@linuxfoundation.org
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: kernelci.org bot <bot@kernelci.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250115103547.522503305@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20250106151129.433047073@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: kernelci.org bot <bot@kernelci.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20241230154207.276570972@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: kernelci.org bot <bot@kernelci.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Ron Economos <re@w6rz.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20241223155353.641267612@linuxfoundation.org
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Tested-by: kernelci.org bot <bot@kernelci.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Hardik Garg <hargar@linux.microsoft.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20241217170526.232803729@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20241212144349.797589255@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: SeongJae Park <sj@kernel.org>
Link: https://lore.kernel.org/r/20241213150009.122200534@linuxfoundation.org
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: kernelci.org bot <bot@kernelci.org>
Tested-by: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Link: https://lore.kernel.org/r/20241120125809.623237564@linuxfoundation.org
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Hardik Garg hargar@linux.microsoft.com=0A=
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: kernelci.org bot <bot@kernelci.org>
Tested-by: Yann Sionneau <ysionneau@kalrayinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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