From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hayes Wang Subject: [PATCH net v3 4/4] r8152: check rx after napi is enabled Date: Thu, 26 Jan 2017 09:38:34 +0800 Message-ID: <1394712342-15778-251-Taiwan-albertk@realtek.com> References: <1394712342-15778-236-Taiwan-albertk@realtek.com> <1394712342-15778-247-Taiwan-albertk@realtek.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , Hayes Wang To: Return-path: Received: from rtits2.realtek.com ([211.75.126.72]:35524 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752705AbdAZBjP (ORCPT ); Wed, 25 Jan 2017 20:39:15 -0500 In-Reply-To: <1394712342-15778-247-Taiwan-albertk@realtek.com> Sender: netdev-owner@vger.kernel.org List-ID: Schedule the napi after napi_enable() for rx, if it is necessary. If the rx is completed when napi is disabled, the sheduling of napi would be lost. Then, no one handles the rx packet until next napi is scheduled. Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 4785d2b..ad42295 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -32,7 +32,7 @@ #define NETNEXT_VERSION "08" /* Information for net */ -#define NET_VERSION "7" +#define NET_VERSION "8" #define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION #define DRIVER_AUTHOR "Realtek linux nic maintainers " @@ -3561,6 +3561,9 @@ static int rtl8152_post_reset(struct usb_interface *intf) netif_wake_queue(netdev); usb_submit_urb(tp->intr_urb, GFP_KERNEL); + if (!list_empty(&tp->rx_done)) + napi_schedule(&tp->napi); + return 0; } @@ -3700,6 +3703,8 @@ static int rtl8152_resume(struct usb_interface *intf) napi_enable(&tp->napi); clear_bit(SELECTIVE_SUSPEND, &tp->flags); smp_mb__after_atomic(); + if (!list_empty(&tp->rx_done)) + napi_schedule(&tp->napi); } else { tp->rtl_ops.up(tp); netif_carrier_off(tp->netdev); -- 2.7.4