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net: hns: Remove redundant memset during buffer release 

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
lipeng 2017-04-01 12:03:34 +01:00 committed by David S. Miller
parent de99208cc7
commit fb0672d116
1 changed files with 0 additions and 1 deletions
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drivers/net/ethernet/hisilicon/hns/hnae.c
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@ -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)