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authorYOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>2013-01-29 12:48:50 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-29 22:58:40 -0500
commit70e94e66aec255aff276397f5ed3f3626c548f1c (patch)
treef8a266b768f73394271a58a90b7d8375705079df /include/net/xfrm.h
parentff88b30c717f21dffba6784cae4d3287da16f6ef (diff)
downloadlinux-70e94e66aec255aff276397f5ed3f3626c548f1c.tar.gz
xfrm: Convert xfrm_addr_cmp() to boolean xfrm_addr_equal().
All users of xfrm_addr_cmp() use its result as boolean. Introduce xfrm_addr_equal() (which is equal to !xfrm_addr_cmp()) and convert all users. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/xfrm.h')
-rw-r--r--include/net/xfrm.h25
1 files changed, 12 insertions, 13 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 0d8a797f044..de34883e8b1 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1574,27 +1574,26 @@ extern struct xfrm_algo_desc *xfrm_calg_get_byname(const char *name, int probe);
extern struct xfrm_algo_desc *xfrm_aead_get_byname(const char *name, int icv_len,
int probe);
-static inline int xfrm_addr_cmp(const xfrm_address_t *a,
- const xfrm_address_t *b,
- int family)
+static inline bool xfrm6_addr_equal(const xfrm_address_t *a,
+ const xfrm_address_t *b)
+{
+ return ipv6_addr_equal((const struct in6_addr *)a,
+ (const struct in6_addr *)b);
+}
+
+static inline bool xfrm_addr_equal(const xfrm_address_t *a,
+ const xfrm_address_t *b,
+ sa_family_t family)
{
switch (family) {
default:
case AF_INET:
- return (__force u32)a->a4 - (__force u32)b->a4;
+ return ((__force u32)a->a4 ^ (__force u32)b->a4) == 0;
case AF_INET6:
- return ipv6_addr_cmp((const struct in6_addr *)a,
- (const struct in6_addr *)b);
+ return xfrm6_addr_equal(a, b);
}
}
-static inline bool xfrm6_addr_equal(const xfrm_address_t *a,
- const xfrm_address_t *b)
-{
- return ipv6_addr_equal((const struct in6_addr *)a,
- (const struct in6_addr *)b);
-}
-
static inline int xfrm_policy_id2dir(u32 index)
{
return index & 7;