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net: hns3: free the pending skb when clean RX ring

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If there is pending skb in RX flow when close the port, and the
pending buffer is not cleaned, the new packet will be added to
the pending skb when the port opens again, and the first new
packet has error data.

This patch cleans the pending skb when clean RX ring.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peng Li 2019-04-14 09:47:45 +08:00 committed by David S. Miller
parent 2d0075b4a7
commit cc5ff6e90f
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -3960,6 +3960,13 @@ static int hns3_clear_rx_ring(struct hns3_enet_ring *ring)
ring_ptr_move_fw(ring, next_to_use);
}
/* Free the pending skb in rx ring */
if (ring->skb) {
dev_kfree_skb_any(ring->skb);
ring->skb = NULL;
ring->pending_buf = 0;
}
return 0;
}