Commit b9077428 authored Oct 23, 2017 by Lipeng Committed by David S. Miller Oct 24, 2017

net: hns3: fix a bug when alloc new buffer



When alloce new buffer to HW, should unmap the old buffer first.
This old code map the old buffer but not unmap the old buffer,
this patch fixes it.

Fixes: 76ad4f0e (net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC)

Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5908064a

drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1595,7 +1595,7 @@ static int hns3_alloc_ring_buffers(struct hns3_enet_ring *ring)
		static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
		struct hns3_desc_cb *res_cb)
		{
		hns3_map_buffer(ring, &ring->desc_cb[i]);
		hns3_unmap_buffer(ring, &ring->desc_cb[i]);
		ring->desc_cb[i] = *res_cb;
		ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
		}