Message ID | 1491890032-28655-5-git-send-email-steffen.klassert@secunet.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 43b93d1..9e3dc7b 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -845,9 +845,9 @@ static inline bool addr_match(const void *token1, const void *token2, static inline bool addr4_match(__be32 a1, __be32 a2, u8 prefixlen) { /* C99 6.5.7 (3): u32 << 32 is undefined behaviour */ - if (prefixlen == 0) + if (sizeof(long) == 4 && prefixlen == 0) return true; - return !((a1 ^ a2) & htonl(0xFFFFFFFFu << (32 - prefixlen))); + return !((a1 ^ a2) & htonl(~0UL << (32 - prefixlen))); } static __inline__