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virtio: simplify the using of received in virtnet_poll 

received is 0, no need to minus it and use "+=" to reassign it

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Li RongQing 2015-03-26 15:39:45 +08:00 committed by David S. Miller
parent 3556eaaab5
commit faadb05f4b
1 changed files with 2 additions and 2 deletions
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4
drivers/net/virtio_net.c
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@ -749,9 +749,9 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
{
struct receive_queue *rq =
container_of(napi, struct receive_queue, napi);
unsigned int r, received = 0;
unsigned int r, received;
received += virtnet_receive(rq, budget - received);
received = virtnet_receive(rq, budget);
/* Out of packets? */
if (received < budget) {