From: Ido Schimmel <idosch@mellanox.com>
Date: Thu, 16 Mar 2017 08:08:17 +0000 (+0100)
Subject: mlxsw: spectrum_router: Don't destroy RIF if L3 slave
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9db032bb1e8eed0721884c01a6c87f55f3d400fa;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

mlxsw: spectrum_router: Don't destroy RIF if L3 slave

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 5aad0aef1ed3..91ec62a2db48 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>
@@ -2660,7 +2661,7 @@ 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