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net/mlx5e: fix return value check in mlx5e_ipsec_remove_trailer()

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[ Upstream commit e5bcb7564d3bd0c88613c76963c5349be9c511c5 ]

mlx5e_ipsec_remove_trailer() should return an error code if function
pskb_trim() returns an unexpected value.

Fixes: 2ac9cfe782 ("net/mlx5e: IPSec, Add Innova IPSec offload TX data path")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuanjun Gong 2023-07-25 14:56:55 +08:00 • committed by Greg Kroah-Hartman
commit 80381ecf29
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
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@ -121,7 +121,9 @@ static int mlx5e_ipsec_remove_trailer(struct sk_buff *skb, struct xfrm_state *x)
trailer_len = alen + plen + 2;
pskb_trim(skb, skb->len - trailer_len);
ret = pskb_trim(skb, skb->len - trailer_len);
if (unlikely(ret))
return ret;
if (skb->protocol == htons(ETH_P_IP)) {
ipv4hdr->tot_len = htons(ntohs(ipv4hdr->tot_len) - trailer_len);
ip_send_check(ipv4hdr);