From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFE64C282DB for ; Mon, 21 Jan 2019 09:46:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6CD82085A for ; Mon, 21 Jan 2019 09:46:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728053AbfAUJqp (ORCPT ); Mon, 21 Jan 2019 04:46:45 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:56764 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726133AbfAUJqp (ORCPT ); Mon, 21 Jan 2019 04:46:45 -0500 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id C455CCDF45D16E566276; Mon, 21 Jan 2019 10:00:38 +0800 (CST) Received: from dessert.huawei.com (10.69.192.158) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.408.0; Mon, 21 Jan 2019 10:00:29 +0800 From: Zeng Tao To: CC: Zeng Tao , Felipe Balbi , "Greg Kroah-Hartman" , , Subject: [PATCH] usb: dwc3: gadget: issue a stop command for ISOC endpoint Date: Mon, 21 Jan 2019 18:02:56 +0800 Message-ID: <1548064976-30196-1-git-send-email-prime.zeng@hisilicon.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.158] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For ISOC transfers, if there is no available data for a period, we need to stop the transfer by issue a stop command, otherwise, all the upcoming transfers will started by update transfer command, and will be dropped with MISS ISOC errors. Signed-off-by: Zeng Tao --- drivers/usb/dwc3/gadget.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e18c2a2..58e71ba 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2500,6 +2500,10 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep, stop = true; } + if (list_empty(&dep->started_list) && + (usb_endpoint_xfer_isoc(dep->endpoint.desc))) + stop = true; + dwc3_gadget_ep_cleanup_completed_requests(dep, event, status); if (stop) { -- 2.7.4