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Message-ID: <87bnx8xobx.fsf_-_@xmission.com> Date: Fri, 14 Mar 2014 18:06:26 -0700 From: ebiederm@...ssion.com (Eric W. Biederman) To: David Miller <davem@...emloft.net> Cc: eric.dumazet@...il.com, netdev@...r.kernel.org, xiyou.wangcong@...il.com, mpm@...enic.com, satyam.sharma@...il.com Subject: [PATCH net-next 11/16] s2io: 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@...ssion.com> --- drivers/net/ethernet/neterion/s2io.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index 56e3a9d42bb2..d44fdb91808e 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -2914,6 +2914,9 @@ static int rx_intr_handler(struct ring_info *ring_data, int budget) struct RxD1 *rxdp1; struct RxD3 *rxdp3; + if (budget <= 0) + return napi_pkts; + get_info = ring_data->rx_curr_get_info; get_block = get_info.block_index; memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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