[PATCH] ipvlan: flush arp table when mac address changed
From: <hidden>
Date: 2018-05-12 11:01:04
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lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Keefe Liu <redacted> When master device's mac has been changed, the commit <32c10bbfe914> "ipvlan: always use the current L2 addr of the master" makes the IPVlan devices's mac changed also, but it doesn't flush the IPVlan's arp table. Signed-off-by: Keefe Liu <redacted> --- drivers/net/ipvlan/ipvlan_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 450eec2..a1edfe1 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c@@ -7,6 +7,8 @@ * */ +#include <net/neighbour.h> +#include <net/arp.h> #include "ipvlan.h" static unsigned int ipvlan_netid __read_mostly;
@@ -792,8 +794,10 @@ static int ipvlan_device_event(struct notifier_block *unused, break; case NETDEV_CHANGEADDR: - list_for_each_entry(ipvlan, &port->ipvlans, pnode) + list_for_each_entry(ipvlan, &port->ipvlans, pnode) { ether_addr_copy(ipvlan->dev->dev_addr, dev->dev_addr); + neigh_changeaddr(&arp_tbl, ipvlan->dev); + } break; case NETDEV_PRE_TYPE_CHANGE:
--
1.8.3.1