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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 11:47:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 11:47:58 -0700
commit6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7 (patch)
tree8f3892fc44f1e403675a6d7e88fda5c70e56ee4c /net/bridge/br_input.c
parent5abd9ccced7a726c817dd6b5b96bc933859138d1 (diff)
parent3ff1c25927e3af61c6bf0e4ed959504058ae4565 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits) phy/marvell: add 88ec048 support igb: Program MDICNFG register prior to PHY init e1000e: correct MAC-PHY interconnect register offset for 82579 hso: Add new product ID can: Add driver for esd CAN-USB/2 device l2tp: fix export of header file for userspace can-raw: Fix skb_orphan_try handling Revert "net: remove zap_completion_queue" net: cleanup inclusion phy/marvell: add 88e1121 interface mode support u32: negative offset fix net: Fix a typo from "dev" to "ndev" igb: Use irq_synchronize per vector when using MSI-X ixgbevf: fix null pointer dereference due to filter being set for VLAN 0 e1000e: Fix irq_synchronize in MSI-X case e1000e: register pm_qos request on hardware activation ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice net: Add getsockopt support for TCP thin-streams cxgb4: update driver version cxgb4: add new PCI IDs ... Manually fix up conflicts in: - drivers/net/e1000e/netdev.c: due to pm_qos registration infrastructure changes - drivers/net/phy/marvell.c: conflict between adding 88ec048 support and cleaning up the IDs - drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req conflict (registration change vs marking it static)
Diffstat (limited to 'net/bridge/br_input.c')
-rw-r--r--net/bridge/br_input.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index d36e700f7a26..826cd5221536 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -27,8 +27,10 @@ static int br_pass_frame_up(struct sk_buff *skb)
struct net_bridge *br = netdev_priv(brdev);
struct br_cpu_netstats *brstats = this_cpu_ptr(br->stats);
+ u64_stats_update_begin(&brstats->syncp);
brstats->rx_packets++;
brstats->rx_bytes += skb->len;
+ u64_stats_update_end(&brstats->syncp);
indev = skb->dev;
skb->dev = brdev;
@@ -37,11 +39,11 @@ static int br_pass_frame_up(struct sk_buff *skb)
netif_receive_skb);
}
-/* note: already called with rcu_read_lock (preempt_disabled) */
+/* note: already called with rcu_read_lock */
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;
@@ -108,13 +110,12 @@ drop:
goto out;
}
-/* note: already called with rcu_read_lock (preempt_disabled) */
+/* note: already called with rcu_read_lock */
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 */
}
@@ -131,15 +132,18 @@ static inline int is_link_local(const unsigned char *dest)
}
/*
- * Called via br_handle_frame_hook.
* Return NULL if skb is handled
- * note: already called with rcu_read_lock (preempt_disabled)
+ * note: already called with rcu_read_lock
*/
-struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb)
+struct sk_buff *br_handle_frame(struct sk_buff *skb)
{
+ struct net_bridge_port *p;
const unsigned char *dest = eth_hdr(skb)->h_dest;
int (*rhook)(struct sk_buff *skb);
+ if (skb->pkt_type == PACKET_LOOPBACK)
+ return skb;
+
if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
goto drop;
@@ -147,6 +151,8 @@ struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb)
if (!skb)
return NULL;
+ p = br_port_get_rcu(skb->dev);
+
if (unlikely(is_link_local(dest))) {
/* Pause frames shouldn't be passed up by driver anyway */
if (skb->protocol == htons(ETH_P_PAUSE))