From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hayes Wang Subject: [PATCH net v2 3/4] r8152: re-schedule napi for tx Date: Wed, 25 Jan 2017 16:13:20 +0800 Message-ID: <1394712342-15778-245-Taiwan-albertk@realtek.com> References: <1394712342-15778-236-Taiwan-albertk@realtek.com> <1394712342-15778-242-Taiwan-albertk@realtek.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , Hayes Wang To: Return-path: In-Reply-To: <1394712342-15778-242-Taiwan-albertk-Rasf1IRRPZFBDgjK7y7TUQ@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org Re-schedule napi after napi_complete() for tx, if it is necessay. In r8152_poll(), if the tx is completed after tx_bottom() and before napi_complete(), the scheduling of napi would be lost. Then, no one handles the next tx until the next napi_schedule() is called. Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index ec882be..45d168e 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1936,6 +1936,9 @@ static int r8152_poll(struct napi_struct *napi, int budget) napi_complete(napi); if (!list_empty(&tp->rx_done)) napi_schedule(napi); + else if (!skb_queue_empty(&tp->tx_queue) && + !list_empty(&tp->tx_free)) + napi_schedule(&tp->napi); } return work_done; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html