[PATCH RESEND] x86/asm: Use inout "+" asm onstraint modifiers in __iowrite32_copy()

[Uros Bizjak]

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

No functional changes intended.

Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
---
 arch/x86/include/asm/io.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index ca309a3227c7..2ea25745e059 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -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
-- 
2.52.0