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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DC71EE4993 for ; Thu, 24 Aug 2023 14:55:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241876AbjHXOzM (ORCPT ); Thu, 24 Aug 2023 10:55:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241931AbjHXOy4 (ORCPT ); Thu, 24 Aug 2023 10:54:56 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C4BB19AA for ; Thu, 24 Aug 2023 07:54:54 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9732E66F49 for ; Thu, 24 Aug 2023 14:54:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ABB54C433C8; Thu, 24 Aug 2023 14:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1692888893; bh=mTUlYX2wAkRwH34/FkRmDDQQDCiiiadEKkuc+9xvzOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rxbejFpUL545OxqAvYEbF/2WaWJYMAhyjwOEeHEXzwu8LrhxaDldVOdsR4Wmh3091 hLD9je13j7eANoOJ+0sF/DAKCHKpo5prsS4lA8IJ1uxGcTc6bvKSHjjZ4gsn9soBVD apxlv65ZBTXLw14gsMe7syO2iumhusGG/fAsdI58= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thinh Nguyen , Wesley Cheng , Sasha Levin Subject: [PATCH 5.15 051/139] usb: dwc3: gadget: Synchronize IRQ between soft connect/disconnect Date: Thu, 24 Aug 2023 16:49:34 +0200 Message-ID: <20230824145025.831537554@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230824145023.559380953@linuxfoundation.org> References: <20230824145023.559380953@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Wesley Cheng [ Upstream commit 9711c67de7482c81e1daca3548fbc5c9603600e3 ] Ensure that there are no pending events being handled in between soft connect/disconnect transitions. As we are keeping interrupts enabled, and EP0 events are still being serviced, this avoids any stale events from being serviced. Reviewed-by: Thinh Nguyen Signed-off-by: Wesley Cheng Link: https://lore.kernel.org/r/20220817182359.13550-4-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman Stable-dep-of: c8540870af4c ("usb: dwc3: gadget: Improve dwc3_gadget_suspend() and dwc3_gadget_resume()") Signed-off-by: Sasha Levin --- drivers/usb/dwc3/gadget.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index d76a4837615d9..b2ffc98c9e747 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2540,6 +2540,8 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) return 0; } + synchronize_irq(dwc->irq_gadget); + if (!is_on) { ret = dwc3_gadget_soft_disconnect(dwc); } else { -- 2.40.1