From: Eric W. Biederman Date: Tue, 11 Mar 2014 21:31:09 +0000 (-0700) Subject: bnx2: Don't receive packets when the napi budget == 0 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=310c4d4e23d191156810f402c747e5e17c4dc0b1;p=linux-beck.git bnx2: 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" Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c index c251ca3056de..2e42de239798 100644 --- a/drivers/net/ethernet/broadcom/bnx2.c +++ b/drivers/net/ethernet/broadcom/bnx2.c @@ -3132,6 +3132,9 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) struct l2_fhdr *rx_hdr; int rx_pkt = 0, pg_ring_used = 0; + if (budget <= 0) + return rx_pkt; + hw_cons = bnx2_get_hw_rx_cons(bnapi); sw_cons = rxr->rx_cons; sw_prod = rxr->rx_prod;