| Message ID | 201003291600.o2TG05VI032167@94.43.138.210.xn.2iij.net |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Date: Tue, 30 Mar 2010 01:00:05 +0900 > 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 <yoshfuji@linux-ipv6.org> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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)); } /*
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 <yoshfuji@linux-ipv6.org> --- include/net/ipv6.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)