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| author |   YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> | 2010-03-29 06:00:05 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-03-30 23:28:46 -0700 |
| commit | d57b8fb8a8f94bdf467a4435be7d8bbebf87fe2a (patch) | |
| tree | 07aa8906cb5717cbc531e2adfefb2d72c32a7874 | |
| parent | e1000e: typo corrections (diff) | |
| download | linux-dev-d57b8fb8a8f94bdf467a4435be7d8bbebf87fe2a.tar.xz linux-dev-d57b8fb8a8f94bdf467a4435be7d8bbebf87fe2a.zip | |
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>
| -rw-r--r-- | include/net/ipv6.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e72fb10ce573..033ddd4652a5 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)); } /* |