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Diffstat (limited to 'net/bridge/br_multicast.c')
-rw-r--r--net/bridge/br_multicast.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 9d21d98ae5fa..eb5b256ffc88 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -99,6 +99,15 @@ static struct net_bridge_mdb_entry *__br_mdb_ip_get(
return NULL;
}
+static struct net_bridge_mdb_entry *br_mdb_ip_get(
+ struct net_bridge_mdb_htable *mdb, struct br_ip *dst)
+{
+ if (!mdb)
+ return NULL;
+
+ return __br_mdb_ip_get(mdb, dst, br_ip_hash(mdb, dst));
+}
+
static struct net_bridge_mdb_entry *br_mdb_ip4_get(
struct net_bridge_mdb_htable *mdb, __be32 dst)
{
@@ -107,7 +116,7 @@ static struct net_bridge_mdb_entry *br_mdb_ip4_get(
br_dst.u.ip4 = dst;
br_dst.proto = htons(ETH_P_IP);
- return __br_mdb_ip_get(mdb, &br_dst, __br_ip4_hash(mdb, dst));
+ return br_mdb_ip_get(mdb, &br_dst);
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
@@ -119,23 +128,17 @@ static struct net_bridge_mdb_entry *br_mdb_ip6_get(
ipv6_addr_copy(&br_dst.u.ip6, dst);
br_dst.proto = htons(ETH_P_IPV6);
- return __br_mdb_ip_get(mdb, &br_dst, __br_ip6_hash(mdb, dst));
+ return br_mdb_ip_get(mdb, &br_dst);
}
#endif
-static struct net_bridge_mdb_entry *br_mdb_ip_get(
- struct net_bridge_mdb_htable *mdb, struct br_ip *dst)
-{
- return __br_mdb_ip_get(mdb, dst, br_ip_hash(mdb, dst));
-}
-
struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
struct sk_buff *skb)
{
struct net_bridge_mdb_htable *mdb = br->mdb;
struct br_ip ip;
- if (!mdb || br->multicast_disabled)
+ if (br->multicast_disabled)
return NULL;
if (BR_INPUT_SKB_CB(skb)->igmp)
@@ -1432,7 +1435,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
struct icmp6hdr *icmp6h;
u8 nexthdr;
unsigned len;
- unsigned offset;
+ int offset;
int err;
if (!pskb_may_pull(skb, sizeof(*ip6h)))
@@ -1725,13 +1728,9 @@ unlock:
int br_multicast_toggle(struct net_bridge *br, unsigned long val)
{
struct net_bridge_port *port;
- int err = -ENOENT;
+ int err = 0;
spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev))
- goto unlock;
-
- err = 0;
if (br->multicast_disabled == !val)
goto unlock;
@@ -1739,6 +1738,9 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val)
if (br->multicast_disabled)
goto unlock;
+ if (!netif_running(br->dev))
+ goto unlock;
+
if (br->mdb) {
if (br->mdb->old) {
err = -EEXIST;