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net: hns3: do not allocate linear data for fraglist skb 

Currently, napi_alloc_skb() is used to allocate skb for fraglist
when the head skb is not enough to hold the remaining data, and
the remaining data is added to the frags part of the fraglist skb,
leaving the linear part unused.

So this patch passes length of 0 to allocate fraglist skb with
zero size of linear data.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yunsheng Lin 2019-10-19 16:03:55 +08:00 committed by David S. Miller
parent d35bced88f
commit 7fda3a930d
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -2863,8 +2863,7 @@ static int hns3_add_frag(struct hns3_enet_ring *ring, struct hns3_desc *desc,
return -ENXIO;
if (unlikely(ring->frag_num >= MAX_SKB_FRAGS)) {
new_skb = napi_alloc_skb(&ring->tqp_vector->napi,
HNS3_RX_HEAD_SIZE);
new_skb = napi_alloc_skb(&ring->tqp_vector->napi, 0);
if (unlikely(!new_skb)) {
hns3_rl_err(ring_to_netdev(ring),
"alloc rx fraglist skb fail\n");