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bridge: use rx_handler_data pointer to store net_bridge_port pointer

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Register net_bridge_port pointer as rx_handler data pointer. As br_port is
removed from struct net_device, another netdev priv_flag is added to indicate
the device serves as a bridge port. Also rcuized pointers are now correctly
dereferenced in br_fdb.c and in netfilter parts.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2010-06-15 06:50:45 +00:00
committed by David S. Miller
parent a35e2c1b6d
commit f350a0a873
20 changed files with 71 additions and 50 deletions
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9
net/bridge/br_input.c
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@@ -41,7 +41,7 @@ static int br_pass_frame_up(struct sk_buff *skb)
int br_handle_frame_finish(struct sk_buff *skb)
{
const unsigned char *dest = eth_hdr(skb)->h_dest;
struct net_bridge_port *p = rcu_dereference(skb->dev->br_port);
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
struct net_bridge *br;
struct net_bridge_fdb_entry *dst;
struct net_bridge_mdb_entry *mdst;
@@ -111,10 +111,9 @@ drop:
/* note: already called with rcu_read_lock (preempt_disabled) */
static int br_handle_local_finish(struct sk_buff *skb)
{
struct net_bridge_port *p = rcu_dereference(skb->dev->br_port);
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
if (p)
br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
return 0; /* process further */
}
@@ -151,7 +150,7 @@ struct sk_buff *br_handle_frame(struct sk_buff *skb)
if (!skb)
return NULL;
p = rcu_dereference(skb->dev->br_port);
p = br_port_get_rcu(skb->dev);
if (unlikely(is_link_local(dest))) {
/* Pause frames shouldn't be passed up by driver anyway */