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path: root/net/bridge/br_input.c
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Diffstat (limited to 'net/bridge/br_input.c')
-rw-r--r--net/bridge/br_input.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index c20c5be6fc22..dd8885def11b 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -131,13 +131,12 @@ static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
/* note: already called with rcu_read_lock */
int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
+ bool local_rcv = false, mcast_hit = false, unicast = true;
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
const unsigned char *dest = eth_hdr(skb)->h_dest;
struct net_bridge_fdb_entry *dst = NULL;
- bool mcast_hit = false, unicast = true;
struct net_bridge_mdb_entry *mdst;
struct net_bridge *br;
- struct sk_buff *skb2;
u16 vid = 0;
if (!p || p->state == BR_STATE_DISABLED)
@@ -160,17 +159,13 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
BR_INPUT_SKB_CB(skb)->brdev = br->dev;
- /* The packet skb2 goes to the local host (NULL to skip). */
- skb2 = NULL;
-
- if (br->dev->flags & IFF_PROMISC)
- skb2 = skb;
+ local_rcv = !!(br->dev->flags & IFF_PROMISC);
if (IS_ENABLED(CONFIG_INET) && skb->protocol == htons(ETH_P_ARP))
br_do_proxy_arp(skb, br, vid, p);
if (is_broadcast_ether_addr(dest)) {
- skb2 = skb;
+ local_rcv = true;
unicast = false;
} else if (is_multicast_ether_addr(dest)) {
mdst = br_mdb_get(br, skb, vid);
@@ -178,12 +173,12 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
br_multicast_querier_exists(br, eth_hdr(skb))) {
if ((mdst && mdst->mglist) ||
br_multicast_is_router(br)) {
- skb2 = skb;
+ local_rcv = true;
br->dev->stats.multicast++;
}
mcast_hit = true;
} else {
- skb2 = skb;
+ local_rcv = true;
br->dev->stats.multicast++;
}
unicast = false;
@@ -194,16 +189,16 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
if (dst) {
dst->used = jiffies;
- br_forward(dst->dst, skb, skb2);
+ br_forward(dst->dst, skb, local_rcv);
} else {
if (!mcast_hit)
- br_flood_forward(br, skb, skb2, unicast);
+ br_flood_forward(br, skb, local_rcv, unicast);
else
- br_multicast_forward(mdst, skb, skb2);
+ br_multicast_forward(mdst, skb, local_rcv);
}
- if (skb2)
- return br_pass_frame_up(skb2);
+ if (local_rcv)
+ return br_pass_frame_up(skb);
out:
return 0;