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[net-next,07/10] mlxsw: spectrum_router: Don't destroy RIF if L3 slave

Message ID 1489390713-2634-7-git-send-email-jiri@resnulli.us
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Jiri Pirko March 13, 2017, 7:38 a.m. UTC 
From: Ido Schimmel <idosch@mellanox.com>

We usually destroy the netdev's router interface (RIF) when the last IP
address is removed from it.

However, we shouldn't do that if it's enslaved to an L3 master device.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 0eeb556..64f0dc7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -41,6 +41,7 @@ 
 #include <linux/in6.h>
 #include <linux/notifier.h>
 #include <linux/inetdevice.h>
+#include <linux/netdevice.h>
 #include <net/netevent.h>
 #include <net/neighbour.h>
 #include <net/arp.h>
@@ -2658,7 +2659,7 @@  static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
 			return true;
 		return false;
 	case NETDEV_DOWN:
-		if (r && !in_dev->ifa_list)
+		if (r && !in_dev->ifa_list && !netif_is_l3_slave(r->dev))
 			return true;
 		/* It is possible we already removed the RIF ourselves
 		 * if it was assigned to a netdev that is now a bridge