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-rw-r--r--include/net/ipv6.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 3b1d963d396c..c893a1ce4b39 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -282,6 +282,18 @@ static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr
282 return memcmp((const void *) a1, (const void *) a2, sizeof(struct in6_addr)); 282 return memcmp((const void *) a1, (const void *) a2, sizeof(struct in6_addr));
283} 283}
284 284
285static inline int
286ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
287 const struct in6_addr *a2)
288{
289 unsigned int i;
290
291 for (i = 0; i < 4; i++)
292 if ((a1->s6_addr32[i] ^ a2->s6_addr32[i]) & m->s6_addr32[i])
293 return 1;
294 return 0;
295}
296
285static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2) 297static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
286{ 298{
287 memcpy((void *) a1, (const void *) a2, sizeof(struct in6_addr)); 299 memcpy((void *) a1, (const void *) a2, sizeof(struct in6_addr));