Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "A quick set of bug fixes after there initial networking merge:

  1) Netlink multicast group storage allocator only was tested with
     nr_groups equal to 1, make it work for other values too.  From
     Matti Vaittinen.

  2) Check build_skb() return value in macb and hip04_eth drivers, from
     Weidong Wang.

  3) Don't leak x25_asy on x25_asy_open() failure.

  4) More DMA map/unmap fixes in 3c59x from Neil Horman.

  5) Don't clobber IP skb control block during GSO segmentation, from
     Konstantin Khlebnikov.

  6) ECN helpers for ipv6 don't fixup the checksum, from Eric Dumazet.

  7) Fix SKB segment utilization estimation in xen-netback, from David
     Vrabel.

  8) Fix lockdep splat in bridge addrlist handling, from Nikolay
     Aleksandrov"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
  bgmac: Fix reversed test of build_skb() return value.
  bridge: fix lockdep addr_list_lock false positive splat
  net: smsc: Add support h8300
  xen-netback: free queues after freeing the net device
  xen-netback: delete NAPI instance when queue fails to initialize
  xen-netback: use skb to determine number of required guest Rx requests
  net: sctp: Move sequence start handling into sctp_transport_get_idx()
  ipv6: update skb->csum when CE mark is propagated
  net: phy: turn carrier off on phy attach
  net: macb: clear interrupts when disabling them
  sctp: support to lookup with ep+paddr in transport rhashtable
  net: hns: fixes no syscon error when init mdio
  dts: hisi: fixes no syscon fault when init mdio
  net: preserve IP control block during GSO segmentation
  fsl/fman: Delete one function call "put_device" in dtsec_config()
  hip04_eth: fix missing error handle for build_skb failed
  3c59x: fix another page map/single unmap imbalance
  3c59x: balance page maps and unmaps
  x25_asy: Free x25_asy on x25_asy_open() failure.
  mlxsw: fix SWITCHDEV_OBJ_ID_PORT_MDB
  ...

1 files changed, 23 insertions, 15 deletions

diff --git a/net/sctp/input.c b/net/sctp/input.c
index d9a6e66c5c8a..b9a536b52da2 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -784,6 +784,7 @@ hit:
 
 /* rhashtable for transport */
 struct sctp_hash_cmp_arg {
+	const struct sctp_endpoint	*ep;
 	const union sctp_addr		*laddr;
 	const union sctp_addr		*paddr;
 	const struct net		*net;
@@ -797,15 +798,20 @@ static inline int sctp_hash_cmp(struct rhashtable_compare_arg *arg,
 	struct sctp_association *asoc = t->asoc;
 	const struct net *net = x->net;
 
-	if (x->laddr->v4.sin_port != htons(asoc->base.bind_addr.port))
-		return 1;
 	if (!sctp_cmp_addr_exact(&t->ipaddr, x->paddr))
 		return 1;
 	if (!net_eq(sock_net(asoc->base.sk), net))
 		return 1;
-	if (!sctp_bind_addr_match(&asoc->base.bind_addr,
-				  x->laddr, sctp_sk(asoc->base.sk)))
-		return 1;
+	if (x->ep) {
+		if (x->ep != asoc->ep)
+			return 1;
+	} else {
+		if (x->laddr->v4.sin_port != htons(asoc->base.bind_addr.port))
+			return 1;
+		if (!sctp_bind_addr_match(&asoc->base.bind_addr,
+					  x->laddr, sctp_sk(asoc->base.sk)))
+			return 1;
+	}
 
 	return 0;
 }
@@ -832,9 +838,11 @@ static inline u32 sctp_hash_key(const void *data, u32 len, u32 seed)
 	const struct sctp_hash_cmp_arg *x = data;
 	const union sctp_addr *paddr = x->paddr;
 	const struct net *net = x->net;
-	u16 lport = x->laddr->v4.sin_port;
+	u16 lport;
 	u32 addr;
 
+	lport = x->ep ? htons(x->ep->base.bind_addr.port) :
+			x->laddr->v4.sin_port;
 	if (paddr->sa.sa_family == AF_INET6)
 		addr = jhash(&paddr->v6.sin6_addr, 16, seed);
 	else
@@ -864,12 +872,9 @@ void sctp_transport_hashtable_destroy(void)
 
 void sctp_hash_transport(struct sctp_transport *t)
 {
-	struct sctp_sockaddr_entry *addr;
 	struct sctp_hash_cmp_arg arg;
 
-	addr = list_entry(t->asoc->base.bind_addr.address_list.next,
-			  struct sctp_sockaddr_entry, list);
-	arg.laddr = &addr->a;
+	arg.ep = t->asoc->ep;
 	arg.paddr = &t->ipaddr;
 	arg.net   = sock_net(t->asoc->base.sk);
 
@@ -891,6 +896,7 @@ struct sctp_transport *sctp_addrs_lookup_transport(
 				const union sctp_addr *paddr)
 {
 	struct sctp_hash_cmp_arg arg = {
+		.ep    = NULL,
 		.laddr = laddr,
 		.paddr = paddr,
 		.net   = net,
@@ -904,13 +910,15 @@ struct sctp_transport *sctp_epaddr_lookup_transport(
 				const struct sctp_endpoint *ep,
 				const union sctp_addr *paddr)
 {
-	struct sctp_sockaddr_entry *addr;
 	struct net *net = sock_net(ep->base.sk);
+	struct sctp_hash_cmp_arg arg = {
+		.ep    = ep,
+		.paddr = paddr,
+		.net   = net,
+	};
 
-	addr = list_entry(ep->base.bind_addr.address_list.next,
-			  struct sctp_sockaddr_entry, list);
-
-	return sctp_addrs_lookup_transport(net, &addr->a, paddr);
+	return rhashtable_lookup_fast(&sctp_transport_hashtable, &arg,
+				      sctp_hash_params);
 }
 
 /* Look up an association. */