From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xue Chaojing Subject: [PATCH 3/3] net-next/hinic: fix a bug in rx data flow Date: Thu, 15 Nov 2018 20:05:48 +0000 Message-ID: <20181115200548.5326-3-xuechaojing@huawei.com> References: <20181115200548.5326-1-xuechaojing@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , , , To: Return-path: In-Reply-To: <20181115200548.5326-1-xuechaojing@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org In rx_alloc_pkts(), there is a loop call of tasklet, which causes 100% cpu utilization, even no packets are being received. This patch fixes this bug. Signed-off-by: Xue Chaojing --- drivers/net/ethernet/huawei/hinic/hinic_rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c b/drivers/net/ethernet/huawei/hinic/hinic_rx.c index 93e8f207f6da..f86f2e693224 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c @@ -229,9 +229,9 @@ static int rx_alloc_pkts(struct hinic_rxq *rxq) wmb(); /* write all the wqes before update PI */ hinic_rq_update(rxq->rq, prod_idx); + tasklet_schedule(&rxq->rx_task); } - tasklet_schedule(&rxq->rx_task); return i; } -- 2.17.1