IPv4: Send gratuitous ARP for secondary IP addresses also

If a device event generates gratuitous ARP messages, only primary
address is used for sending. This patch iterates through the whole
list. Tested with 2 IP addresses configuration on bonding interface.

Signed-off-by: Zoltan Kiss <schaman@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 8 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 37b3c188d8b3..bc19bd06dd00 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1134,15 +1134,15 @@ 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;
+        struct in_ifaddr *ifa;
 
-        arp_send(ARPOP_REQUEST, ETH_P_ARP,
-                 ifa->ifa_local, dev,
-                 ifa->ifa_local, NULL,
-                 dev->dev_addr, NULL);
+        for (ifa = in_dev->ifa_list; ifa;
+             ifa = ifa->ifa_next) {
+                arp_send(ARPOP_REQUEST, ETH_P_ARP,
+                         ifa->ifa_local, dev,
+                         ifa->ifa_local, NULL,
+                         dev->dev_addr, NULL);
+        }
 }
 
 /* Called only under RTNL semaphore */