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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 4e84236b62ce..a829930dac15 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -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) {