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authorCong Wang <xiyou.wangcong@gmail.com>2018-11-29 00:04:05 +0100
committerDavid S. Miller <davem@davemloft.net>2018-12-01 02:19:33 +0100
commitef6fcd455278c2be3032a346cc66d9dd9866b787 (patch)
treec8ad49895da3c0fe3f50722c19d760db90661b6f
parentnet: dsa: Fix tagging attribute location (diff)
downloadlinux-ef6fcd455278c2be3032a346cc66d9dd9866b787.tar.xz
linux-ef6fcd455278c2be3032a346cc66d9dd9866b787.zip
mlx5: fix get_ip_proto()
IP header is not necessarily located right after struct ethhdr, there could be multiple 802.1Q headers in between, this is why we call __vlan_get_protocol(). Fixes: fe1dc069990c ("net/mlx5e: don't set CHECKSUM_COMPLETE on SCTP packets") Cc: Alaa Hleihel <alaa@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_rx.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 16985ca3248d..624eed345b5d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -724,9 +724,9 @@ static u32 mlx5e_get_fcs(const struct sk_buff *skb)
return __get_unaligned_cpu32(fcs_bytes);
}
-static u8 get_ip_proto(struct sk_buff *skb, __be16 proto)
+static u8 get_ip_proto(struct sk_buff *skb, int network_depth, __be16 proto)
{
- void *ip_p = skb->data + sizeof(struct ethhdr);
+ void *ip_p = skb->data + network_depth;
return (proto == htons(ETH_P_IP)) ? ((struct iphdr *)ip_p)->protocol :
((struct ipv6hdr *)ip_p)->nexthdr;
@@ -755,7 +755,7 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
goto csum_unnecessary;
if (likely(is_last_ethertype_ip(skb, &network_depth, &proto))) {
- if (unlikely(get_ip_proto(skb, proto) == IPPROTO_SCTP))
+ if (unlikely(get_ip_proto(skb, network_depth, proto) == IPPROTO_SCTP))
goto csum_unnecessary;
skb->ip_summed = CHECKSUM_COMPLETE;