3 files changed, 24 insertions, 13 deletions

diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index eb4a84288648..3bb2cdc13b46 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -214,5 +214,26 @@ int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb)
         return inner_mode->afinfo->extract_output(x, skb);
 }
 
+void xfrm_local_error(struct sk_buff *skb, int mtu)
+{
+        unsigned int proto;
+        struct xfrm_state_afinfo *afinfo;
+
+        if (skb->protocol == htons(ETH_P_IP))
+                proto = AF_INET;
+        else if (skb->protocol == htons(ETH_P_IPV6))
+                proto = AF_INET6;
+        else
+                return;
+
+        afinfo = xfrm_state_get_afinfo(proto);
+        if (!afinfo)
+                return;
+
+        afinfo->local_error(skb, mtu);
+        xfrm_state_put_afinfo(afinfo);
+}
+
 EXPORT_SYMBOL_GPL(xfrm_output);
 EXPORT_SYMBOL_GPL(xfrm_inner_extract_output);
+EXPORT_SYMBOL_GPL(xfrm_local_error);
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index ad8cc7bcf065..ed38d5d81f9e 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -320,10 +320,8 @@ static void xfrm_queue_purge(struct sk_buff_head *list)
 {
         struct sk_buff *skb;
 
-        while ((skb = skb_dequeue(list)) != NULL) {
-                dev_put(skb->dev);
+        while ((skb = skb_dequeue(list)) != NULL)
                 kfree_skb(skb);
-        }
 }
 
 /* Rule must be locked. Release descentant resources, announce
@@ -1764,7 +1762,6 @@ static void xfrm_policy_queue_process(unsigned long arg)
         struct sk_buff *skb;
         struct sock *sk;
         struct dst_entry *dst;
-        struct net_device *dev;
         struct xfrm_policy *pol = (struct xfrm_policy *)arg;
         struct xfrm_policy_queue *pq = &pol->polq;
         struct flowi fl;
@@ -1811,7 +1808,6 @@ static void xfrm_policy_queue_process(unsigned long arg)
                 dst = xfrm_lookup(xp_net(pol), skb_dst(skb)->path,
                                   &fl, skb->sk, 0);
                 if (IS_ERR(dst)) {
-                        dev_put(skb->dev);
                         kfree_skb(skb);
                         continue;
                 }
@@ -1820,9 +1816,7 @@ static void xfrm_policy_queue_process(unsigned long arg)
                 skb_dst_drop(skb);
                 skb_dst_set(skb, dst);
 
-                dev = skb->dev;
                 err = dst_output(skb);
-                dev_put(dev);
         }
 
         return;
@@ -1845,7 +1839,6 @@ static int xdst_queue_output(struct sk_buff *skb)
         }
 
         skb_dst_force(skb);
-        dev_hold(skb->dev);
 
         spin_lock_bh(&pq->hold_queue.lock);
 
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 4f8ace855864..b9c3f9e943a9 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -39,9 +39,6 @@ static DEFINE_SPINLOCK(xfrm_state_lock);
 
 static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
 
-static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
-static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
-
 static inline unsigned int xfrm_dst_hash(struct net *net,
                                          const xfrm_address_t *daddr,
                                          const xfrm_address_t *saddr,
@@ -1863,7 +1860,7 @@ int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo)
 }
 EXPORT_SYMBOL(xfrm_state_unregister_afinfo);
 
-static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family)
+struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family)
 {
         struct xfrm_state_afinfo *afinfo;
         if (unlikely(family >= NPROTO))
@@ -1875,7 +1872,7 @@ static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family)
         return afinfo;
 }
 
-static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo)
+void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo)
 {
         rcu_read_unlock();
 }