[ Upstream commit cc5ff6e90f808f9a4c8229bf2f1de0dfe5d7931c ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index ecadd280ab28d..fb5cb15aea9ec 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -3871,6 +3871,13 @@ 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; }