Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
seqlock: Allow KASAN to fail optimizing
Some KASAN builds are failing to properly optimize this code --
luckily we don't care about core quality for KASAN builds, so just
exclude it.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Closes: https://lore.kernel.org/oe-kbuild-all/202510251641.idrNXhv5-lkp@intel.com/
+4
-1
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-1
include/linux/seqlock.h
+4
-1
include/linux/seqlock.h
···
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extern void __scoped_seqlock_invalid_target(void);
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-
#if defined(CONFIG_CC_IS_GCC) && CONFIG_GCC_VERSION < 90000
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#if (defined(CONFIG_CC_IS_GCC) && CONFIG_GCC_VERSION < 90000) || defined(CONFIG_KASAN)
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/*
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* For some reason some GCC-8 architectures (nios2, alpha) have trouble
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* determining that the ss_done state is impossible in __scoped_seqlock_next()
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* below.
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*
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* Similarly KASAN is known to confuse compilers enough to break this. But we
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* don't care about code quality for KASAN builds anyway.
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*/
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static inline void __scoped_seqlock_bug(void) { }
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#else