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tilegx: 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>
This commit is contained in:
Eric W. Biederman 2014-03-14 18:08:21 -07:00 committed by David S. Miller
parent 99a09c26a8
commit d110ec4533
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/tile/tilegx.c
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@ -659,6 +659,9 @@ static int tile_net_poll(struct napi_struct *napi, int budget)
struct info_mpipe *info_mpipe =
container_of(napi, struct info_mpipe, napi);
if (budget <= 0)
goto done;
instance = info_mpipe->instance;
while ((n = gxio_mpipe_iqueue_try_peek(
&info_mpipe->iqueue,