Commit 09fbb775 authored by Uros Bizjak's avatar Uros Bizjak Committed by Borislav Petkov (AMD)
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x86/asm: Use inout "+" asm onstraint modifiers in __iowrite32_copy() 



Use inout "+" asm constraint modifiers to simplify asm operands.

No functional changes intended.

Signed-off-by: default avatarUros Bizjak <ubizjak@gmail.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarH. Peter Anvin (Intel) <hpa@zytor.com>
Link: https://patch.msgid.link/20251216105134.248196-1-ubizjak@gmail.com
parent 11439c46

arch/x86/include/asm/io.h

+2 −3
Original line number Diff line number Diff line
@@ -218,9 +218,8 @@ static inline void __iowrite32_copy(void __iomem *to, const void *from, 
				    size_t count)

{

	asm volatile("rep movsl"

		     : "=&c"(count), "=&D"(to), "=&S"(from)

		     : "0"(count), "1"(to), "2"(from)

		     : "memory");

		     : "+D"(to), "+S"(from), "+c"(count)

		     : : "memory");

}

#define __iowrite32_copy __iowrite32_copy

#endif