From patchwork Wed Mar 24 18:31:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 408589 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 05F86C433DB for ; Wed, 24 Mar 2021 18:31:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8B5B61A12 for ; Wed, 24 Mar 2021 18:31:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237474AbhCXSbW (ORCPT ); Wed, 24 Mar 2021 14:31:22 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:25034 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237525AbhCXSbN (ORCPT ); Wed, 24 Mar 2021 14:31:13 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1616610673; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Xldk2NaEZrFyK7TzKhPvrgf0bwOwJIDcRrPX/EK8W+s=; b=MjbbwMK/vmaL5CdiO0bre2yh25L11rg/JzPIUvFtJ+WXwkXGJ/ATJHa9dE6QBR426/Nl0Joy dYTZAvxhvhNI1rquVi7IoHI+mezSEVtX7liQ0jh81ousw18zZPeMnXSmZWbspQbJIvL/KBq/ 4Rno6Gf6XXLgCRSiwkgS1A1V1ls= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-west-2.postgun.com with SMTP id 605b856dc32ceb3a91356bec (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 24 Mar 2021 18:31:09 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 77DCBC433C6; Wed, 24 Mar 2021 18:31:09 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 38AAFC433ED; Wed, 24 Mar 2021 18:31:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 38AAFC433ED Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: balbi@kernel.org, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Wesley Cheng Subject: [PATCH] usb: dwc3: gadget: Clear DEP flags after stop transfers in ep disable Date: Wed, 24 Mar 2021 11:31:04 -0700 Message-Id: <1616610664-16495-1-git-send-email-wcheng@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Ensure that dep->flags are cleared until after stop active transfers is completed. Otherwise, the ENDXFER command will not be executed during ep disable. Fixes: f09ddcfcb8c5 ("usb: dwc3: gadget: Prevent EP queuing while stopping transfers") Reported-and-tested-by: Andy Shevchenko Tested-by: Marek Szyprowski Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/gadget.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e1442fc..2c4d201 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -791,10 +791,6 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) reg &= ~DWC3_DALEPENA_EP(dep->number); dwc3_writel(dwc->regs, DWC3_DALEPENA, reg); - dep->stream_capable = false; - dep->type = 0; - dep->flags = 0; - /* Clear out the ep descriptors for non-ep0 */ if (dep->number > 1) { dep->endpoint.comp_desc = NULL; @@ -803,6 +799,10 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) dwc3_remove_requests(dwc, dep); + dep->stream_capable = false; + dep->type = 0; + dep->flags = 0; + return 0; }