From patchwork Wed Apr 21 20:48:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Grzeschik X-Patchwork-Id: 12217023 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, 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 61014C43461 for ; Wed, 21 Apr 2021 20:48:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 405F161435 for ; Wed, 21 Apr 2021 20:48:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245694AbhDUUtU (ORCPT ); Wed, 21 Apr 2021 16:49:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245688AbhDUUtU (ORCPT ); Wed, 21 Apr 2021 16:49:20 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9E10C06174A for ; Wed, 21 Apr 2021 13:48:46 -0700 (PDT) Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lZJm8-000542-NU; Wed, 21 Apr 2021 22:48:44 +0200 Received: from mgr by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1lZJm8-000180-Ef; Wed, 21 Apr 2021 22:48:44 +0200 From: Michael Grzeschik To: linux-usb@vger.kernel.org Cc: balbi@kernel.org, Thinh.Nguyen@synopsys.com, kernel@pengutronix.de Subject: [PATCH 2/2] dwc3: gadget: fix tracking of used sgs in request Date: Wed, 21 Apr 2021 22:48:37 +0200 Message-Id: <20210421204837.4185-3-m.grzeschik@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210421204837.4185-1-m.grzeschik@pengutronix.de> References: <20210421204837.4185-1-m.grzeschik@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mgr@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-usb@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The variable pending_sgs was used to keep track of handled sgs in one request. But instead queued_sgs is being decremented on every handled sg. This patch fixes the usage of the variable to use queued_sgs instead as intended. Signed-off-by: Michael Grzeschik Tested-by: Michael Grzeschik --- 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 118b5bcc565d6..2d7d861b13b31 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2856,7 +2856,7 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep, struct dwc3_trb *trb = &dep->trb_pool[dep->trb_dequeue]; struct scatterlist *sg = req->sg; struct scatterlist *s; - unsigned int pending = req->num_pending_sgs; + unsigned int pending = req->num_queued_sgs; unsigned int i; int ret = 0; @@ -2864,7 +2864,7 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep, trb = &dep->trb_pool[dep->trb_dequeue]; req->sg = sg_next(s); - req->num_pending_sgs--; + req->num_queued_sgs--; ret = dwc3_gadget_ep_reclaim_completed_trb(dep, req, trb, event, status, true); @@ -2887,7 +2887,7 @@ static int dwc3_gadget_ep_reclaim_trb_linear(struct dwc3_ep *dep, static bool dwc3_gadget_ep_request_completed(struct dwc3_request *req) { - return req->num_pending_sgs == 0; + return req->num_queued_sgs == 0; } static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep, @@ -2896,7 +2896,7 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep, { int ret; - if (req->num_pending_sgs) + if (req->num_queued_sgs) ret = dwc3_gadget_ep_reclaim_trb_sg(dep, req, event, status); else