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bnx2: Don't receive packets when the napi budget == 0

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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>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2014-03-11 14:31:09 -07:00 committed by David S. Miller
parent f9708b4302
commit 310c4d4e23
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/broadcom/bnx2.c
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@ -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;