Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756719AbaKTC37 (ORCPT ); Wed, 19 Nov 2014 21:29:59 -0500 Received: from rtits2.realtek.com ([60.250.210.242]:33129 "EHLO rtits2.realtek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756639AbaKTC34 (ORCPT ); Wed, 19 Nov 2014 21:29:56 -0500 Authenticated-By: X-SpamFilter-By: BOX Solutions SpamTrap 5.49 with qID sAK2TNwF022005, This message is accepted by code: ctloc85258 From: Hayes Wang To: CC: , , , Hayes Wang Subject: [PATCH net-next v3 1/2] r8152: adjust r8152_submit_rx Date: Thu, 20 Nov 2014 10:29:05 +0800 Message-ID: <1394712342-15778-99-Taiwan-albertk@realtek.com> X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <1394712342-15778-98-Taiwan-albertk@realtek.com> References: <1394712342-15778-88-Taiwan-albertk@realtek.com> <1394712342-15778-98-Taiwan-albertk@realtek.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.21.71.44] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The behavior of handling the returned status from r8152_submit_rx() is almost same, so let r8152_submit_rx() deal with the error directly. This could avoid the duplicate code. Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 0a30fd3..3b89229 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1032,7 +1032,6 @@ static void read_bulk_callback(struct urb *urb) int status = urb->status; struct rx_agg *agg; struct r8152 *tp; - int result; agg = urb->context; if (!agg) @@ -1083,16 +1082,7 @@ static void read_bulk_callback(struct urb *urb) break; } - result = r8152_submit_rx(tp, agg, GFP_ATOMIC); - if (result == -ENODEV) { - set_bit(RTL8152_UNPLUG, &tp->flags); - netif_device_detach(tp->netdev); - } else if (result) { - spin_lock(&tp->rx_lock); - list_add_tail(&agg->list, &tp->rx_done); - spin_unlock(&tp->rx_lock); - tasklet_schedule(&tp->tl); - } + r8152_submit_rx(tp, agg, GFP_ATOMIC); } static void write_bulk_callback(struct urb *urb) @@ -1680,7 +1670,6 @@ static void rx_bottom(struct r8152 *tp) int len_used = 0; struct urb *urb; u8 *rx_data; - int ret; list_del_init(cursor); @@ -1733,13 +1722,7 @@ find_next_rx: } submit: - ret = r8152_submit_rx(tp, agg, GFP_ATOMIC); - if (ret && ret != -ENODEV) { - spin_lock_irqsave(&tp->rx_lock, flags); - list_add_tail(&agg->list, &tp->rx_done); - spin_unlock_irqrestore(&tp->rx_lock, flags); - tasklet_schedule(&tp->tl); - } + r8152_submit_rx(tp, agg, GFP_ATOMIC); } } @@ -1806,11 +1789,28 @@ static void bottom_half(unsigned long data) static int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags) { + int ret; + usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1), agg->head, agg_buf_sz, (usb_complete_t)read_bulk_callback, agg); - return usb_submit_urb(agg->urb, mem_flags); + ret = usb_submit_urb(agg->urb, mem_flags); + if (ret == -ENODEV) { + set_bit(RTL8152_UNPLUG, &tp->flags); + netif_device_detach(tp->netdev); + } else if (ret) { + struct urb *urb = agg->urb; + unsigned long flags; + + urb->actual_length = 0; + spin_lock_irqsave(&tp->rx_lock, flags); + list_add_tail(&agg->list, &tp->rx_done); + spin_unlock_irqrestore(&tp->rx_lock, flags); + tasklet_schedule(&tp->tl); + } + + return ret; } static void rtl_drop_queued_tx(struct r8152 *tp) -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/