ibmveth: Don't receive packets when the napi budget == 0

Processing any incoming packets with a with a napi budget of 0
is incorrect driver behavior.

This matters as netpoll will shortly call drivers with a budget of 0
to avoid receive packet processing happening in hard irq context.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 1fc8334fc181..e75bdfcd1374 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1072,7 +1072,7 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
         unsigned long lpar_rc;
 
 restart_poll:
-        do {
+        while (frames_processed < budget) {
                 if (!ibmveth_rxq_pending_buffer(adapter))
                         break;
 
@@ -1121,7 +1121,7 @@ restart_poll:
                         netdev->stats.rx_bytes += length;
                         frames_processed++;
                 }
-        } while (frames_processed < budget);
+        }
 
         ibmveth_replenish_task(adapter);