From 176f792f571ffef6d86b4254424cc05bb3874c9e Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 14 Mar 2014 18:10:14 -0700 Subject: 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" Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/tc35815.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c index 88e9c73cebc0..fef5573dbfca 100644 --- a/drivers/net/ethernet/toshiba/tc35815.c +++ b/drivers/net/ethernet/toshiba/tc35815.c @@ -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 { -- cgit v1.2.3-59-g8ed1b