Commit d1def91c authored Mar 14, 2014 by Eric W. Biederman Committed by David S. Miller Mar 14, 2014

tilepro: 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 d110ec45

drivers/net/ethernet/tile/tilepro.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -831,6 +831,9 @@ static int tile_net_poll(struct napi_struct *napi, int budget)

		unsigned int work = 0;

		if (budget <= 0)
		goto done;

		while (priv->active) {
		int index = qup->__packet_receive_read;
		if (index == qsp->__packet_receive_queue.__packet_write)