From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Sat, 19 Oct 2019 16:03:55 +0800
Subject: net: hns3: do not allocate linear data for fraglist skb
Patch-mainline: v5.5-rc1
Git-commit: 7fda3a930d15a993389018e31532f3a1e34974ab
References: bsc#1154353
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2863,8 +2863,7 @@ static int hns3_add_frag(struct hns3_ene
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");