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[V2,net-next,04/18] net: hns: Remove redundant memset during buffer release

Message ID 20170331112032.4692-5-salil.mehta@huawei.com
State Superseded
Headers show
Series net: hns: Misc. HNS Bug Fixes & Code Improvements | expand

Commit Message

Salil Mehta March 31, 2017, 11:20 a.m. UTC 
From: lipeng <lipeng321@huawei.com>


Because all members of desc_cb is assigned when xmit one package, so it
can delete in hnae_free_buffer, as follows:
        - "dma, priv, length, type" are assigned in fill_v2_desc.
        - "page_offset, reuse_flag, buf" are not used in tx direction.

Signed-off-by: lipeng <lipeng321@huawei.com>

Signed-off-by: Weiwei Deng <dengweiwei@huawei.com>

Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>

---
 drivers/net/ethernet/hisilicon/hns/hnae.c | 1 -
 1 file changed, 1 deletion(-)

-- 
2.7.4
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Patch

diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c
index b6ed818..78af663 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.c
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
@@ -61,7 +61,6 @@  static void hnae_free_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)
 		dev_kfree_skb_any((struct sk_buff *)cb->priv);
 	else if (unlikely(is_rx_ring(ring)))
 		put_page((struct page *)cb->priv);
-	memset(cb, 0, sizeof(*cb));
 }
 
 static int hnae_map_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb)