Commit caf3cb2e authored by Uros Bizjak's avatar Uros Bizjak Committed by Ingo Molnar
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x86/asm/segment: Use ASM_INPUT_RM in __loadsegment_fs() 



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: default avatarUros Bizjak <ubizjak@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: default avatarNathan 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
parent 8379ca68

arch/x86/include/asm/segment.h

+1 −1
Original line number Diff line number Diff line
@@ -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. */