diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_device.c | 8 | ||||
| -rw-r--r-- | net/bridge/br_fdb.c | 2 | ||||
| -rw-r--r-- | net/bridge/br_input.c | 7 | ||||
| -rw-r--r-- | net/bridge/br_stp_bpdu.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 7 | ||||
| -rw-r--r-- | net/sched/act_nat.c | 3 |
6 files changed, 18 insertions, 11 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 075c435ad22d..cf09fe591fc2 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -22,7 +22,7 @@ #include <asm/uaccess.h> #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); @@ -48,13 +48,16 @@ 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 (unlikely(netpoll_tx_running(dev))) { br_flood_deliver(br, skb); goto out; } - if (br_multicast_rcv(br, NULL, skb)) + if (br_multicast_rcv(br, NULL, skb)) { + kfree_skb(skb); goto out; + } mdst = br_mdb_get(br, skb); if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) @@ -67,6 +70,7 @@ 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 a744296fc675..90512ccfd3e9 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 5fc1c5b1c360..826cd5221536 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -39,7 +39,7 @@ 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; @@ -110,7 +110,7 @@ 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 = br_port_get_rcu(skb->dev); @@ -133,8 +133,7 @@ static inline int is_link_local(const unsigned char *dest) /* * Return NULL if skb is handled - * note: already called with rcu_read_lock (preempt_disabled) from - * netif_receive_skb + * note: already called with rcu_read_lock */ struct sk_buff *br_handle_frame(struct sk_buff *skb) { diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index 70aecb48fb69..35cf27087b56 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) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 1a700651600b..176e11aaea77 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2187,6 +2187,8 @@ static int do_tcp_setsockopt(struct sock *sk, int level, GFP_KERNEL); if (cvp == NULL) return -ENOMEM; + + kref_init(&cvp->kref); } lock_sock(sk); tp->rx_opt.cookie_in_always = @@ -2201,12 +2203,11 @@ static int do_tcp_setsockopt(struct sock *sk, int level, */ kref_put(&tp->cookie_values->kref, tcp_cookie_values_release); - kref_init(&cvp->kref); - tp->cookie_values = cvp; } else { cvp = tp->cookie_values; } } + if (cvp != NULL) { cvp->cookie_desired = ctd.tcpct_cookie_desired; @@ -2220,6 +2221,8 @@ static int do_tcp_setsockopt(struct sock *sk, int level, cvp->s_data_desired = ctd.tcpct_s_data_desired; cvp->s_data_constant = 0; /* false */ } + + tp->cookie_values = cvp; } release_sock(sk); return err; diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c index 24e614c495f2..d0386a413e8d 100644 --- a/net/sched/act_nat.c +++ b/net/sched/act_nat.c @@ -218,6 +218,7 @@ static int tcf_nat(struct sk_buff *skb, struct tc_action *a, if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + sizeof(*iph))) goto drop; + icmph = (void *)(skb_network_header(skb) + ihl); iph = (void *)(icmph + 1); if (egress) addr = iph->daddr; @@ -246,7 +247,7 @@ static int tcf_nat(struct sk_buff *skb, struct tc_action *a, iph->saddr = new_addr; inet_proto_csum_replace4(&icmph->checksum, skb, addr, new_addr, - 1); + 0); break; } default: |