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>
This commit is contained in:
Li RongQing 2015-03-26 15:39:45 +08:00 committed by David S. Miller
parent 3556eaaab5
commit faadb05f4b

View File

@ -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) {