Commit d57b8fb8 authored Mar 29, 2010 by YOSHIFUJI Hideaki / 吉藤英明 Committed by David S. Miller Mar 30, 2010

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 <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 2c73e1fe

include/net/ipv6.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -422,7 +422,7 @@ static inline int __ipv6_addr_diff(const void token1, const void token2, int a
	for (i = 0; i < addrlen; i++) {		for (i = 0; i < addrlen; i++) {
	__be32 xb = a1[i] ^ a2[i];		__be32 xb = a1[i] ^ a2[i];
	if (xb)		if (xb)
	return i * 32 + 32 - fls(ntohl(xb));		return i * 32 + 31 - __fls(ntohl(xb));
	}		}

	/*		/*