diff options
| -rw-r--r-- | net/bridge/br_forward.c | 33 | ||||
| -rw-r--r-- | net/bridge/br_input.c | 5 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 3 |
3 files changed, 25 insertions, 16 deletions
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index bc1704ac6cd9..6cd50c6e57cf 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -105,8 +105,9 @@ void br_forward(const struct net_bridge_port *to, struct sk_buff *skb) /* called under bridge lock */ static void br_flood(struct net_bridge *br, struct sk_buff *skb, - void (*__packet_hook)(const struct net_bridge_port *p, - struct sk_buff *skb)) + struct sk_buff *skb0, + void (*__packet_hook)(const struct net_bridge_port *p, + struct sk_buff *skb)) { struct net_bridge_port *p; struct net_bridge_port *prev; @@ -120,8 +121,7 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb, if ((skb2 = skb_clone(skb, GFP_ATOMIC)) == NULL) { br->dev->stats.tx_dropped++; - kfree_skb(skb); - return; + goto out; } __packet_hook(prev, skb2); @@ -131,23 +131,34 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb, } } - if (prev != NULL) { - __packet_hook(prev, skb); - return; + if (!prev) + goto out; + + if (skb0) { + skb = skb_clone(skb, GFP_ATOMIC); + if (!skb) { + br->dev->stats.tx_dropped++; + goto out; + } } + __packet_hook(prev, skb); + return; - kfree_skb(skb); +out: + if (!skb0) + kfree_skb(skb); } /* called with rcu_read_lock */ void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb) { - br_flood(br, skb, __br_deliver); + br_flood(br, skb, NULL, __br_deliver); } /* called under bridge lock */ -void br_flood_forward(struct net_bridge *br, struct sk_buff *skb) +void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb2) { - br_flood(br, skb, __br_forward); + br_flood(br, skb, skb2, __br_forward); } diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index be5ab8df6661..edfdaef44296 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -72,14 +72,11 @@ int br_handle_frame_finish(struct sk_buff *skb) skb = NULL; } - if (skb2 == skb) - skb2 = skb_clone(skb, GFP_ATOMIC); - if (skb) { if (dst) br_forward(dst->dst, skb); else - br_flood_forward(br, skb); + br_flood_forward(br, skb, skb2); } if (skb2) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 16513793156e..fad5a2669d34 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -180,7 +180,8 @@ extern void br_forward(const struct net_bridge_port *to, struct sk_buff *skb); extern int br_forward_finish(struct sk_buff *skb); extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); -extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb); +extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb2); /* br_if.c */ extern void br_port_carrier_check(struct net_bridge_port *p); |