1 files changed, 26 insertions, 24 deletions

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 46cf7bea6769..9d4b165837d6 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -869,9 +869,9 @@ fail:
         return err;
 }
 
-static inline int ip6_rt_check(struct rt6key *rt_key,
-                               struct in6_addr *fl_addr,
-                               struct in6_addr *addr_cache)
+static inline int ip6_rt_check(const struct rt6key *rt_key,
+                               const struct in6_addr *fl_addr,
+                               const struct in6_addr *addr_cache)
 {
         return (rt_key->plen != 128 || !ipv6_addr_equal(fl_addr, &rt_key->addr)) &&
                 (addr_cache == NULL || !ipv6_addr_equal(fl_addr, addr_cache));
@@ -879,7 +879,7 @@ static inline int ip6_rt_check(struct rt6key *rt_key,
 
 static struct dst_entry *ip6_sk_dst_check(struct sock *sk,
                                           struct dst_entry *dst,
-                                          struct flowi6 *fl6)
+                                          const struct flowi6 *fl6)
 {
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct rt6_info *rt = (struct rt6_info *)dst;
@@ -930,10 +930,10 @@ static int ip6_dst_lookup_tail(struct sock *sk,
                 goto out_err_release;
 
         if (ipv6_addr_any(&fl6->saddr)) {
-                err = ipv6_dev_get_saddr(net, ip6_dst_idev(*dst)->dev,
-                                         &fl6->daddr,
-                                         sk ? inet6_sk(sk)->srcprefs : 0,
-                                         &fl6->saddr);
+                struct rt6_info *rt = (struct rt6_info *) *dst;
+                err = ip6_route_get_saddr(net, rt, &fl6->daddr,
+                                          sk ? inet6_sk(sk)->srcprefs : 0,
+                                          &fl6->saddr);
                 if (err)
                         goto out_err_release;
         }
@@ -1150,6 +1150,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 {
         struct inet_sock *inet = inet_sk(sk);
         struct ipv6_pinfo *np = inet6_sk(sk);
+        struct inet_cork *cork;
         struct sk_buff *skb;
         unsigned int maxfraglen, fragheaderlen;
         int exthdrlen;
@@ -1163,6 +1164,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 
         if (flags&MSG_PROBE)
                 return 0;
+        cork = &inet->cork.base;
         if (skb_queue_empty(&sk->sk_write_queue)) {
                 /*
                  * setup for corking
@@ -1202,7 +1204,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
                         /* need source address above miyazawa*/
                 }
                 dst_hold(&rt->dst);
-                inet->cork.dst = &rt->dst;
+                cork->dst = &rt->dst;
                 inet->cork.fl.u.ip6 = *fl6;
                 np->cork.hop_limit = hlimit;
                 np->cork.tclass = tclass;
@@ -1212,10 +1214,10 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
                         if (np->frag_size)
                                 mtu = np->frag_size;
                 }
-                inet->cork.fragsize = mtu;
+                cork->fragsize = mtu;
                 if (dst_allfrag(rt->dst.path))
-                        inet->cork.flags |= IPCORK_ALLFRAG;
-                inet->cork.length = 0;
+                        cork->flags |= IPCORK_ALLFRAG;
+                cork->length = 0;
                 sk->sk_sndmsg_page = NULL;
                 sk->sk_sndmsg_off = 0;
                 exthdrlen = rt->dst.header_len + (opt ? opt->opt_flen : 0) -
@@ -1223,12 +1225,12 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
                 length += exthdrlen;
                 transhdrlen += exthdrlen;
         } else {
-                rt = (struct rt6_info *)inet->cork.dst;
+                rt = (struct rt6_info *)cork->dst;
                 fl6 = &inet->cork.fl.u.ip6;
                 opt = np->cork.opt;
                 transhdrlen = 0;
                 exthdrlen = 0;
-                mtu = inet->cork.fragsize;
+                mtu = cork->fragsize;
         }
 
         hh_len = LL_RESERVED_SPACE(rt->dst.dev);
@@ -1238,7 +1240,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
         maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen - sizeof(struct frag_hdr);
 
         if (mtu <= sizeof(struct ipv6hdr) + IPV6_MAXPLEN) {
-                if (inet->cork.length + length > sizeof(struct ipv6hdr) + IPV6_MAXPLEN - fragheaderlen) {
+                if (cork->length + length > sizeof(struct ipv6hdr) + IPV6_MAXPLEN - fragheaderlen) {
                         ipv6_local_error(sk, EMSGSIZE, fl6, mtu-exthdrlen);
                         return -EMSGSIZE;
                 }
@@ -1267,7 +1269,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
          * --yoshfuji
          */
 
-        inet->cork.length += length;
+        cork->length += length;
         if (length > mtu) {
                 int proto = sk->sk_protocol;
                 if (dontfrag && (proto == IPPROTO_UDP || proto == IPPROTO_RAW)){
@@ -1292,7 +1294,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 
         while (length > 0) {
                 /* Check if the remaining data fits into current packet. */
-                copy = (inet->cork.length <= mtu && !(inet->cork.flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - skb->len;
+                copy = (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - skb->len;
                 if (copy < length)
                         copy = maxfraglen - skb->len;
 
@@ -1317,7 +1319,7 @@ alloc_new_skb:
                          * we know we need more fragment(s).
                          */
                         datalen = length + fraggap;
-                        if (datalen > (inet->cork.length <= mtu && !(inet->cork.flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
+                        if (datalen > (cork->length <= mtu && !(cork->flags & IPCORK_ALLFRAG) ? mtu : maxfraglen) - fragheaderlen)
                                 datalen = maxfraglen - fragheaderlen;
 
                         fraglen = datalen + fragheaderlen;
@@ -1481,7 +1483,7 @@ alloc_new_skb:
         }
         return 0;
 error:
-        inet->cork.length -= length;
+        cork->length -= length;
         IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
         return err;
 }
@@ -1497,10 +1499,10 @@ static void ip6_cork_release(struct inet_sock *inet, struct ipv6_pinfo *np)
                 np->cork.opt = NULL;
         }
 
-        if (inet->cork.dst) {
-                dst_release(inet->cork.dst);
-                inet->cork.dst = NULL;
-                inet->cork.flags &= ~IPCORK_ALLFRAG;
+        if (inet->cork.base.dst) {
+                dst_release(inet->cork.base.dst);
+                inet->cork.base.dst = NULL;
+                inet->cork.base.flags &= ~IPCORK_ALLFRAG;
         }
         memset(&inet->cork.fl, 0, sizeof(inet->cork.fl));
 }
@@ -1515,7 +1517,7 @@ int ip6_push_pending_frames(struct sock *sk)
         struct net *net = sock_net(sk);
         struct ipv6hdr *hdr;
         struct ipv6_txoptions *opt = np->cork.opt;
-        struct rt6_info *rt = (struct rt6_info *)inet->cork.dst;
+        struct rt6_info *rt = (struct rt6_info *)inet->cork.base.dst;
         struct flowi6 *fl6 = &inet->cork.fl.u.ip6;
         unsigned char proto = fl6->flowi6_proto;
         int err = 0;