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Diffstat (limited to 'net/bridge/br_input.c')
-rw-r--r--net/bridge/br_input.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index d36e700f7a26..99647d8f95c8 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -131,15 +131,19 @@ static inline int is_link_local(const unsigned char *dest)
131} 131}
132 132
133/* 133/*
134 * Called via br_handle_frame_hook.
135 * Return NULL if skb is handled 134 * Return NULL if skb is handled
136 * note: already called with rcu_read_lock (preempt_disabled) 135 * note: already called with rcu_read_lock (preempt_disabled) from
136 * netif_receive_skb
137 */ 137 */
138struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb) 138struct sk_buff *br_handle_frame(struct sk_buff *skb)
139{ 139{
140 struct net_bridge_port *p;
140 const unsigned char *dest = eth_hdr(skb)->h_dest; 141 const unsigned char *dest = eth_hdr(skb)->h_dest;
141 int (*rhook)(struct sk_buff *skb); 142 int (*rhook)(struct sk_buff *skb);
142 143
144 if (skb->pkt_type == PACKET_LOOPBACK)
145 return skb;
146
143 if (!is_valid_ether_addr(eth_hdr(skb)->h_source)) 147 if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
144 goto drop; 148 goto drop;
145 149
@@ -147,6 +151,8 @@ struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb)
147 if (!skb) 151 if (!skb)
148 return NULL; 152 return NULL;
149 153
154 p = rcu_dereference(skb->dev->br_port);
155
150 if (unlikely(is_link_local(dest))) { 156 if (unlikely(is_link_local(dest))) {
151 /* Pause frames shouldn't be passed up by driver anyway */ 157 /* Pause frames shouldn't be passed up by driver anyway */
152 if (skb->protocol == htons(ETH_P_PAUSE)) 158 if (skb->protocol == htons(ETH_P_PAUSE))