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Date: Mon, 18 Sep 2017 11:11:22 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Paul Blakey <paulb@...lanox.com>, Or Gerlitz <ogerlitz@...lanox.com>, Roi Dayan <roid@...lanox.com>, Saeed Mahameed <saeedm@...lanox.com> Subject: [PATCH 4.12 28/52] net/mlx5e: Properly resolve TC offloaded ipv6 vxlan tunnel source address 4.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paul Blakey <paulb@...lanox.com> [ Upstream commit 08820528c9d3ff0d0eda047d7ef5ecac2da1ef6c ] Currently if vxlan tunnel ipv6 src isn't supplied the driver fails to resolve it as part of the route lookup. The resulting encap header is left with a zeroed out ipv6 src address so the packets are sent with this src ip. Use an appropriate route lookup API that also resolves the source ipv6 address if it's not supplied. Fixes: ce99f6b97fcd ('net/mlx5e: Support SRIOV TC encapsulation offloads for IPv6 tunnels') Signed-off-by: Paul Blakey <paulb@...lanox.com> Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com> Reviewed-by: Roi Dayan <roid@...lanox.com> Signed-off-by: Saeed Mahameed <saeedm@...lanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1262,12 +1262,10 @@ static int mlx5e_route_lookup_ipv6(struc struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; int ret; - dst = ip6_route_output(dev_net(mirred_dev), NULL, fl6); - ret = dst->error; - if (ret) { - dst_release(dst); + ret = ipv6_stub->ipv6_dst_lookup(dev_net(mirred_dev), NULL, &dst, + fl6); + if (ret < 0) return ret; - } *out_ttl = ip6_dst_hoplimit(dst);
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