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tc35815: 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 18:10:14 -07:00 committed by David S. Miller
parent d1def91cd7
commit 176f792f57
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/toshiba/tc35815.c
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@ -1645,6 +1645,9 @@ static int tc35815_poll(struct napi_struct *napi, int budget)
int received = 0, handled;
u32 status;
if (budget <= 0)
return received;
spin_lock(&lp->rx_lock);
status = tc_readl(&tr->Int_Src);
do {