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x86/asm/segment: Use ASM_INPUT_RM in __loadsegment_fs()

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Use the ASM_INPUT_RM macro in __loadsegment_fs() to work around Clang
problems with the "rm" asm constraint. Clang seems to always chose the
memory input, while it is almost always the worst choice.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://patch.msgid.link/20260330055823.5793-3-ubizjak@gmail.com
This commit is contained in:
Uros Bizjak 2026-03-30 07:57:44 +02:00 committed by Ingo Molnar
parent 8379ca68a0
commit caf3cb2ef2
1 changed files with 1 additions and 1 deletions
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arch/x86/include/asm/segment.h
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@ -335,7 +335,7 @@ static inline void __loadsegment_fs(unsigned short value)
_ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_CLEAR_FS)
: : "rm" (value) : "memory");
: : ASM_INPUT_RM (value) : "memory");
}
/* __loadsegment_gs is intentionally undefined. Use load_gs_index instead. */