X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Flockd%2Fclntlock.c;h=1f3b0fc0d351de0f6bd6ea7f48e3344e99f1fe56;hb=5fba0925fd6b67d94181055b7222e3d934b4efee;hp=aedc47a264c1f8ccf9d00eac8a46c298af58cac6;hpb=9e41d9597e7825ec20d690013d32bcec5f3fe16a;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index aedc47a264c1..1f3b0fc0d351 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -139,55 +139,6 @@ int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
 	return 0;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static const struct in6_addr *nlmclnt_map_v4addr(const struct sockaddr *sap,
-						 struct in6_addr *addr_mapped)
-{
-	const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
-
-	switch (sap->sa_family) {
-	case AF_INET6:
-		return &((const struct sockaddr_in6 *)sap)->sin6_addr;
-	case AF_INET:
-		ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, addr_mapped);
-		return addr_mapped;
-	}
-
-	return NULL;
-}
-
-/*
- * If lockd is using a PF_INET6 listener, all incoming requests appear
- * to come from AF_INET6 remotes.  The address of AF_INET remotes are
- * mapped to AF_INET6 automatically by the network layer.  In case the
- * user passed an AF_INET server address at mount time, ensure both
- * addresses are AF_INET6 before comparing them.
- */
-static int nlmclnt_cmp_addr(const struct nlm_host *host,
-			    const struct sockaddr *sap)
-{
-	const struct in6_addr *addr1;
-	const struct in6_addr *addr2;
-	struct in6_addr addr1_mapped;
-	struct in6_addr addr2_mapped;
-
-	addr1 = nlmclnt_map_v4addr(nlm_addr(host), &addr1_mapped);
-	if (likely(addr1 != NULL)) {
-		addr2 = nlmclnt_map_v4addr(sap, &addr2_mapped);
-		if (likely(addr2 != NULL))
-			return ipv6_addr_equal(addr1, addr2);
-	}
-
-	return 0;
-}
-#else	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-static int nlmclnt_cmp_addr(const struct nlm_host *host,
-			    const struct sockaddr *sap)
-{
-	return nlm_cmp_addr(nlm_addr(host), sap);
-}
-#endif	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-
 /*
  * The server lockd has called us back to tell us the lock was granted
  */
@@ -215,7 +166,7 @@ __be32 nlmclnt_grant(const struct sockaddr *addr, const struct nlm_lock *lock)
 		 */
 		if (fl_blocked->fl_u.nfs_fl.owner->pid != lock->svid)
 			continue;
-		if (!nlmclnt_cmp_addr(block->b_host, addr))
+		if (!nlm_cmp_addr(nlm_addr(block->b_host), addr))
 			continue;
 		if (nfs_compare_fh(NFS_FH(fl_blocked->fl_file->f_path.dentry->d_inode) ,fh) != 0)
 			continue;