23 				 const struct sk_buff *skb)  in should_deliver()  argument
25 	return (skb->dev != p->dev && p->state == BR_STATE_FORWARDING);  in should_deliver()
28 static inline unsigned packet_length(const struct sk_buff *skb)  in packet_length()  argument
30 	return skb->len - (skb->protocol == htons(ETH_P_8021Q) ? VLAN_HLEN : 0);  in packet_length()
33 int br_dev_queue_push_xmit(struct sk_buff *skb)  in br_dev_queue_push_xmit()  argument
36 	if (packet_length(skb) > skb->dev->mtu && !skb_is_gso(skb))  in br_dev_queue_push_xmit()
37 		kfree_skb(skb);  in br_dev_queue_push_xmit()
40 		if (nf_bridge_maybe_copy_header(skb))  in br_dev_queue_push_xmit()
41 			kfree_skb(skb);  in br_dev_queue_push_xmit()
43 			skb_push(skb, ETH_HLEN);  in br_dev_queue_push_xmit()
45 			dev_queue_xmit(skb);  in br_dev_queue_push_xmit()
52 int br_forward_finish(struct sk_buff *skb)  in br_forward_finish()  argument
54 	return NF_HOOK(PF_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,  in br_forward_finish()
59 static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)  in __br_deliver()  argument
61 	skb->dev = to->dev;  in __br_deliver()
62 	NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,  in __br_deliver()
66 static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb)  in __br_forward()  argument
70 	if (skb_warn_if_lro(skb)) {  in __br_forward()
71 		kfree_skb(skb);  in __br_forward()
75 	indev = skb->dev;  in __br_forward()
76 	skb->dev = to->dev;  in __br_forward()
77 	skb_forward_csum(skb);  in __br_forward()
79 	NF_HOOK(PF_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,  in __br_forward()
84 void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)  in br_deliver()  argument
86 	if (should_deliver(to, skb)) {  in br_deliver()
87 		__br_deliver(to, skb);  in br_deliver()
91 	kfree_skb(skb);  in br_deliver()
95 void br_forward(const struct net_bridge_port *to, struct sk_buff *skb)  in br_forward()  argument
97 	if (should_deliver(to, skb)) {  in br_forward()
98 		__br_forward(to, skb);  in br_forward()
102 	kfree_skb(skb);  in br_forward()
106 static void br_flood(struct net_bridge *br, struct sk_buff *skb,  in br_flood()  argument
108 			      struct sk_buff *skb))  in br_flood()
116 		if (should_deliver(p, skb)) {  in br_flood()
120 				if ((skb2 = skb_clone(skb, GFP_ATOMIC)) == NULL) {  in br_flood()
122 					kfree_skb(skb);  in br_flood()
134 		__packet_hook(prev, skb);  in br_flood()
138 	kfree_skb(skb);  in br_flood()
143 void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb)  in br_flood_deliver()  argument
145 	br_flood(br, skb, __br_deliver);  in br_flood_deliver()
149 void br_flood_forward(struct net_bridge *br, struct sk_buff *skb)  in br_flood_forward()  argument
151 	br_flood(br, skb, __br_forward);  in br_flood_forward()