diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 753fc4221f3c3587e41dfd816fd6e2771578a243..4cec8051164d6fb59212d83317b778569879043f 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -22,7 +22,7 @@ #include #include "br_private.h" -/* net device transmit always called with no BH (preempt_disabled) */ +/* net device transmit always called with BH disabled */ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) { struct net_bridge *br = netdev_priv(dev); @@ -46,6 +46,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) skb_reset_mac_header(skb); skb_pull(skb, ETH_HLEN); + rcu_read_lock(); if (is_multicast_ether_addr(dest)) { if (br_multicast_rcv(br, NULL, skb)) goto out; @@ -61,6 +62,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) br_flood_deliver(br, skb); out: + rcu_read_unlock(); return NETDEV_TX_OK; } diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index b01dde35a69ed3f1cecf30ebe604cc1808d72a69..7204ad3aff650bbf1236ae553cebcded9189a679 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -214,7 +214,7 @@ void br_fdb_delete_by_port(struct net_bridge *br, spin_unlock_bh(&br->hash_lock); } -/* No locking or refcounting, assumes caller has no preempt (rcu_read_lock) */ +/* No locking or refcounting, assumes caller has rcu_read_lock */ struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, const unsigned char *addr) { diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index d36e700f7a26505b4828a08302b5bfec27b06483..114365c9eb1cfc6da53c0b48987086bacc0e7c65 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -37,7 +37,7 @@ 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; @@ -108,7 +108,7 @@ int br_handle_frame_finish(struct sk_buff *skb) 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); @@ -133,7 +133,7 @@ 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) { diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index 217bd225a42f1390deb46605039941bd6ea81d1f..5854e8285a9c26d8c04a339b64aa3c70433a092c 100644 --- a/net/bridge/br_stp_bpdu.c +++ b/net/bridge/br_stp_bpdu.c @@ -131,7 +131,7 @@ void br_send_tcn_bpdu(struct net_bridge_port *p) /* * Called from llc. * - * NO locks, but rcu_read_lock (preempt_disabled) + * NO locks, but rcu_read_lock */ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, struct net_device *dev)