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r8152: avoid rx queue more than 1000 packets

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Stop queuing rx packets if it is more than 1000.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2017-06-09 17:11:47 +08:00 committed by David S. Miller
parent 4214cc550b
commit 745444583a
1 changed files with 4 additions and 0 deletions
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4
drivers/net/usb/r8152.c
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@ -1813,6 +1813,10 @@ static int rx_bottom(struct r8152 *tp, int budget)
unsigned int pkt_len; unsigned int pkt_len;
struct sk_buff *skb; struct sk_buff *skb;
/* limite the skb numbers for rx_queue */
if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000))
break;
pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
if (pkt_len < ETH_ZLEN) if (pkt_len < ETH_ZLEN)
break; break;