[PATCH] i386: optimize memset of 6 and 8 bytes

[Stephen Hemminger]

Tne network code does memset for 6 and 8 byte values, that can easily
be optimized into simple assignments without string instructions.

Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxxxxxxxxxxxxxx>


--- a/include/asm-i386/string.h	2007-08-17 15:14:37.000000000 -0700
+++ b/include/asm-i386/string.h	2007-08-17 16:49:10.000000000 -0700
@@ -228,6 +228,14 @@ static __always_inline void * __constant
 		case 4:
 			*(unsigned long *)s = pattern;
 			return s;
+		case 6:
+			*(unsigned long *)s = pattern;
+			*(2+(unsigned short *)s) = pattern;
+			return s;
+		case 8:
+			*(unsigned long *)s = pattern;
+			*(1+(unsigned long *)s) = pattern;
+			return s;
 	}
 #define COMMON(x) \
 __asm__  __volatile__( \
-
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