[PATCH net-next] enic: drop IP proto check for vxlan tunnel delete

[PATCH net-next] enic: drop IP proto check for vxlan tunnel delete

[Govindarajulu Varadarajan]

Commit d11790941dd3 ("enic: Add vxlan offload support for IPv6 pkts")
added vxlan offload support for IPv6 pkts. Required change in
enic_udp_tunnel_del was not made. This creates a bug where once user
adds IPv6 tunnel, hw offload for that cannot be deleted.

This patch removes check for IP proto in tunnel delete path. Driver need
not check for IP proto since same UDP port cannot be used to create two
tunnels.

Fixes: d11790941dd3 ("enic: Add vxlan offload support for IPv6 pkts")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
---
 drivers/net/ethernet/cisco/enic/enic_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index a25fb95492a0..81684acf52af 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -251,9 +251,8 @@ static void enic_udp_tunnel_del(struct net_device *netdev,
 
 	spin_lock_bh(&enic->devcmd_lock);
 
-	if ((ti->sa_family != AF_INET) ||
-	    ((ntohs(ti->port) != enic->vxlan.vxlan_udp_port_number)) ||
-	    (ti->type != UDP_TUNNEL_TYPE_VXLAN)) {
+	if ((ntohs(ti->port) != enic->vxlan.vxlan_udp_port_number) ||
+	    ti->type != UDP_TUNNEL_TYPE_VXLAN) {
 		netdev_info(netdev, "udp_tnl: port:%d, sa_family: %d, type: %d not offloaded",
 			    ntohs(ti->port), ti->sa_family, ti->type);
 		goto unlock;
-- 
2.16.2

Re: [PATCH net-next] enic: drop IP proto check for vxlan tunnel delete

[David Miller]

From: Govindarajulu Varadarajan <gvaradar@cisco.com>
Date: Tue, 13 Mar 2018 05:24:33 -0700

> Commit d11790941dd3 ("enic: Add vxlan offload support for IPv6 pkts")
> added vxlan offload support for IPv6 pkts. Required change in
> enic_udp_tunnel_del was not made. This creates a bug where once user
> adds IPv6 tunnel, hw offload for that cannot be deleted.
> 
> This patch removes check for IP proto in tunnel delete path. Driver need
> not check for IP proto since same UDP port cannot be used to create two
> tunnels.
> 
> Fixes: d11790941dd3 ("enic: Add vxlan offload support for IPv6 pkts")
> Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>

Applied, thanks.