Commit cb013ea1 authored Mar 14, 2014 by Eric W. Biederman Committed by David S. Miller Mar 14, 2014

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>

parent 9b2c0571

drivers/net/ethernet/ibm/ibmveth.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
		netdev->stats.rx_bytes += length;
		frames_processed++;
		}
		} while (frames_processed < budget);
		}

		ibmveth_replenish_task(adapter);