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authorGal Pressman <gal@nvidia.com>2024-06-06 23:32:48 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-21 15:38:33 +0300
commitbb5c1b0fbd983c3d7af2f4145adc62821323f6ee (patch)
treeb892b445aa0ce04b112b761c829cce2bf0cda424 /include
parentc72660999c17fa2670ba132c529e8b35a34025e5 (diff)
downloadlinux-bb5c1b0fbd983c3d7af2f4145adc62821323f6ee.tar.xz
geneve: Fix incorrect inner network header offset when innerprotoinherit is set
[ Upstream commit c6ae073f5903f6c6439d0ac855836a4da5c0a701 ] When innerprotoinherit is set, the tunneled packets do not have an inner Ethernet header. Change 'maclen' to not always assume the header length is ETH_HLEN, as there might not be a MAC header. This resolves issues with drivers (e.g. mlx5, in mlx5e_tx_tunnel_accel()) who rely on the skb inner network header offset to be correct, and use it for TX offloads. Fixes: d8a6213d70ac ("geneve: fix header validation in geneve[6]_xmit_skb") Signed-off-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/net/ip_tunnels.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 822f0fad3962..4e69f52a5117 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -362,9 +362,10 @@ static inline bool pskb_inet_may_pull(struct sk_buff *skb)
/* Variant of pskb_inet_may_pull().
*/
-static inline bool skb_vlan_inet_prepare(struct sk_buff *skb)
+static inline bool skb_vlan_inet_prepare(struct sk_buff *skb,
+ bool inner_proto_inherit)
{
- int nhlen = 0, maclen = ETH_HLEN;
+ int nhlen = 0, maclen = inner_proto_inherit ? 0 : ETH_HLEN;
__be16 type = skb->protocol;
/* Essentially this is skb_protocol(skb, true)