diff options
Diffstat (limited to 'net/ipv4/devinet.c')
-rw-r--r-- | net/ipv4/devinet.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index d92df90e7436..f872bf557cd0 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1036,6 +1036,21 @@ static inline bool inetdev_valid_mtu(unsigned mtu) return mtu >= 68; } +static void inetdev_send_gratuitous_arp(struct net_device *dev, + struct in_device *in_dev) + +{ + struct in_ifaddr *ifa = in_dev->ifa_list; + + if (!ifa) + return; + + arp_send(ARPOP_REQUEST, ETH_P_ARP, + ifa->ifa_address, dev, + ifa->ifa_address, NULL, + dev->dev_addr, NULL); +} + /* Called only under RTNL semaphore */ static int inetdev_event(struct notifier_block *this, unsigned long event, @@ -1089,16 +1104,12 @@ static int inetdev_event(struct notifier_block *this, unsigned long event, ip_mc_up(in_dev); /* fall through */ case NETDEV_CHANGEADDR: + if (!IN_DEV_ARP_NOTIFY(in_dev)) + break; + /* fall through */ + case NETDEV_NOTIFY_PEERS: /* Send gratuitous ARP to notify of link change */ - if (IN_DEV_ARP_NOTIFY(in_dev)) { - struct in_ifaddr *ifa = in_dev->ifa_list; - - if (ifa) - arp_send(ARPOP_REQUEST, ETH_P_ARP, - ifa->ifa_address, dev, - ifa->ifa_address, NULL, - dev->dev_addr, NULL); - } + inetdev_send_gratuitous_arp(dev, in_dev); break; case NETDEV_DOWN: ip_mc_down(in_dev); |