From: YOSHIFUJI Hideaki / 吉藤英明 Date: Mon, 29 Mar 2010 06:00:05 +0000 (+0000) Subject: ipv6: Use __fls() instead of fls() in __ipv6_addr_diff(). X-Git-Tag: v2.6.35-rc1~473^2~643 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d57b8fb8a8f94bdf467a4435be7d8bbebf87fe2a;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git ipv6: Use __fls() instead of fls() in __ipv6_addr_diff(). Because we have ensured that the argument is non-zero, it is better to use __fls() and generate better code. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e72fb10..033ddd4 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -422,7 +422,7 @@ static inline int __ipv6_addr_diff(const void *token1, const void *token2, int a for (i = 0; i < addrlen; i++) { __be32 xb = a1[i] ^ a2[i]; if (xb) - return i * 32 + 32 - fls(ntohl(xb)); + return i * 32 + 31 - __fls(ntohl(xb)); } /*