From patchwork Sat Jul 10 09:13:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 472792 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=-17.0 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=unavailable 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 880FBC07E9E for ; Sat, 10 Jul 2021 09:13:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70FF7613E3 for ; Sat, 10 Jul 2021 09:13:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232523AbhGJJQl (ORCPT ); Sat, 10 Jul 2021 05:16:41 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:53206 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232422AbhGJJQg (ORCPT ); Sat, 10 Jul 2021 05:16:36 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1625908431; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=p6iIPSEmp9wvFXtay3Ujw6sPjCKrzRy7wWodzBTyDKM=; b=OJgrEhpZnS7HI0FbvfClJpZaHwWpPx0KE+pH3ZmwluyjjHIbGavy/o8b/qRXkWbbbfpQbIlk DmDH7fa54UwOKznfHmolXmfVw3hKC0S1NYLJhdsfBwJ6r0D+cURh4zhnR5LHiOho9LTbfPBt otG+dVrCj/Q6yhwmpttXotECMLI= 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-n02.prod.us-east-1.postgun.com with SMTP id 60e964b15e3e57240bc31638 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Sat, 10 Jul 2021 09:13:21 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 131ACC43217; Sat, 10 Jul 2021 09:13:21 +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 0AE5AC43460; Sat, 10 Jul 2021 09:13:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0AE5AC43460 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, agross@kernel.org, bjorn.andersson@linaro.org, robh+dt@kernel.org, frowand.list@gmail.com Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, jackp@codeaurora.org, Wesley Cheng Subject: [PATCH v14 2/6] usb: gadget: configfs: Check USB configuration before adding Date: Sat, 10 Jul 2021 02:13:11 -0700 Message-Id: <1625908395-5498-3-git-send-email-wcheng@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1625908395-5498-1-git-send-email-wcheng@codeaurora.org> References: <1625908395-5498-1-git-send-email-wcheng@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Ensure that the USB gadget is able to support the configuration being added based on the number of endpoints required from all interfaces. This is for accounting for any bandwidth or space limitations. Signed-off-by: Wesley Cheng --- drivers/usb/gadget/configfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 15a607c..f4c7c82 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1404,6 +1404,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget, goto err_purge_funcs; } } + ret = usb_gadget_check_config(cdev->gadget); + if (ret) + goto err_purge_funcs; + usb_ep_autoconfig_reset(cdev->gadget); } if (cdev->use_os_string) {