diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 4 | ||||
| -rw-r--r-- | net/core/neighbour.c | 12 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 36 | ||||
| -rw-r--r-- | net/core/skbuff.c | 3 |
4 files changed, 32 insertions, 23 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index b3e19ae57f95..908f07c3bd7d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1071,8 +1071,6 @@ int dev_close(struct net_device *dev) */ call_netdevice_notifiers(NETDEV_GOING_DOWN, dev); - dev_deactivate(dev); - clear_bit(__LINK_STATE_START, &dev->state); /* Synchronize to scheduled poll. We cannot touch poll list, @@ -1083,6 +1081,8 @@ int dev_close(struct net_device *dev) */ smp_mb__after_clear_bit(); /* Commit netif_running(). */ + dev_deactivate(dev); + /* * Call the device specific close. This cannot fail. * Only if device is UP diff --git a/net/core/neighbour.c b/net/core/neighbour.c index a16cf1ec5e5e..7bb6a9a1256d 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -834,18 +834,12 @@ static void neigh_timer_handler(unsigned long arg) } if (neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) { struct sk_buff *skb = skb_peek(&neigh->arp_queue); - /* keep skb alive even if arp_queue overflows */ - if (skb) - skb_get(skb); - write_unlock(&neigh->lock); + neigh->ops->solicit(neigh, skb); atomic_inc(&neigh->probes); - if (skb) - kfree_skb(skb); - } else { -out: - write_unlock(&neigh->lock); } +out: + write_unlock(&neigh->lock); if (notify) neigh_update_notify(neigh); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 61ac8d06292c..ecb02afd52dc 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -504,7 +504,7 @@ int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id, EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo); -static void set_operstate(struct net_device *dev, unsigned char transition) +static int set_operstate(struct net_device *dev, unsigned char transition, bool send_notification) { unsigned char operstate = dev->operstate; @@ -527,8 +527,12 @@ static void set_operstate(struct net_device *dev, unsigned char transition) write_lock_bh(&dev_base_lock); dev->operstate = operstate; write_unlock_bh(&dev_base_lock); - netdev_state_change(dev); - } + + if (send_notification) + netdev_state_change(dev); + return 1; + } else + return 0; } static void copy_rtnl_link_stats(struct rtnl_link_stats *a, @@ -822,6 +826,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, if (tb[IFLA_BROADCAST]) { nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len); send_addr_notify = 1; + modified = 1; } if (ifm->ifi_flags || ifm->ifi_change) { @@ -834,16 +839,23 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, dev_change_flags(dev, flags); } - if (tb[IFLA_TXQLEN]) - dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); + if (tb[IFLA_TXQLEN]) { + if (dev->tx_queue_len != nla_get_u32(tb[IFLA_TXQLEN])) { + dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); + modified = 1; + } + } if (tb[IFLA_OPERSTATE]) - set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); + modified |= set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), false); if (tb[IFLA_LINKMODE]) { - write_lock_bh(&dev_base_lock); - dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); - write_unlock_bh(&dev_base_lock); + if (dev->link_mode != nla_get_u8(tb[IFLA_LINKMODE])) { + write_lock_bh(&dev_base_lock); + dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); + write_lock_bh(&dev_base_lock); + modified = 1; + } } err = 0; @@ -857,6 +869,10 @@ errout: if (send_addr_notify) call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); + + if (modified) + netdev_state_change(dev); + return err; } @@ -974,7 +990,7 @@ struct net_device *rtnl_create_link(struct net *net, char *ifname, if (tb[IFLA_TXQLEN]) dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); if (tb[IFLA_OPERSTATE]) - set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); + set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), true); if (tb[IFLA_LINKMODE]) dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index cfc07dac636c..0d0fd28a9041 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2106,11 +2106,10 @@ int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb, /** * skb_pull_rcsum - pull skb and update receive checksum * @skb: buffer to update - * @start: start of data before pull * @len: length of data pulled * * This function performs an skb_pull on the packet and updates - * update the CHECKSUM_COMPLETE checksum. It should be used on + * the CHECKSUM_COMPLETE checksum. It should be used on * receive path processing instead of skb_pull unless you know * that the checksum difference is zero (e.g., a valid IP header) * or you are setting ip_summed to CHECKSUM_NONE. |
