[PATCH] x86: drop REG_OUT macro from hweight functions

[Alexey Dobriyan]

Output register is always RAX/EAX.

Signed-off-by: Alexey Dobriyan <adobri...@gmail.com>
---

 arch/x86/include/asm/arch_hweight.h |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/arch/x86/include/asm/arch_hweight.h
+++ b/arch/x86/include/asm/arch_hweight.h
@@ -6,10 +6,8 @@
 
 #ifdef CONFIG_64BIT
 #define REG_IN "D"
-#define REG_OUT "a"
 #else
 #define REG_IN "a"
-#define REG_OUT "a"
 #endif
 
 static __always_inline unsigned int __arch_hweight32(unsigned int w)
@@ -17,7 +15,7 @@ static __always_inline unsigned int __arch_hweight32(unsigned 
int w)
        unsigned int res;
 
        asm (ALTERNATIVE("call __sw_hweight32", "popcntl %1, %0", 
X86_FEATURE_POPCNT)
-                        : "="REG_OUT (res)
+                        : "=a" (res)
                         : REG_IN (w));
 
        return res;
@@ -45,7 +43,7 @@ static __always_inline unsigned long __arch_hweight64(__u64 w)
        unsigned long res;
 
        asm (ALTERNATIVE("call __sw_hweight64", "popcntq %1, %0", 
X86_FEATURE_POPCNT)
-                        : "="REG_OUT (res)
+                        : "=a" (res)
                         : REG_IN (w));
 
        return res;