This is a note to let you know that I've just added the patch titled

net/mlx5e: Fix loopback self test when GRO is off

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: net-mlx5e-fix-loopback-self-test-when-gro-is-off.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Tue Mar 6 19:02:12 PST 2018

From: Inbar Karmy inbark@mellanox.com Date: Thu, 7 Dec 2017 17:26:33 +0200 Subject: net/mlx5e: Fix loopback self test when GRO is off

From: Inbar Karmy inbark@mellanox.com

[ Upstream commit ef7a3518f7dd4f4cf5e5b5358c93d1eb78df28fb ]

When GRO is off, the transport header pointer in sk_buff is initialized to network's header.

To find the udp header, instead of using udp_hdr() which assumes skb_network_header was set, manually calculate the udp header offset.

Fixes: 0952da791c97 ("net/mlx5e: Add support for loopback selftest") Signed-off-by: Inbar Karmy inbark@mellanox.com Signed-off-by: Saeed Mahameed saeedm@mellanox.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c @@ -216,7 +216,8 @@ mlx5e_test_loopback_validate(struct sk_b if (iph->protocol != IPPROTO_UDP) goto out;

- udph = udp_hdr(skb); + /* Don't assume skb_transport_header() was set */ + udph = (struct udphdr *)((u8 *)iph + 4 * iph->ihl); if (udph->dest != htons(9)) goto out;

Patches currently in stable-queue which might be from inbark@mellanox.com are

queue-4.14/net-mlx5e-fix-loopback-self-test-when-gro-is-off.patch