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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 DB19AC43600 for ; Sun, 2 May 2021 14:03:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C20FD613C5 for ; Sun, 2 May 2021 14:03:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232338AbhEBOEd (ORCPT ); Sun, 2 May 2021 10:04:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:49388 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232166AbhEBOEb (ORCPT ); Sun, 2 May 2021 10:04:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 27BA3613C4; Sun, 2 May 2021 14:03:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619964212; bh=jJhsYv8EYiSDb/i1+WUcS9e0SCstEdckTV24t98NXkE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=d2KftR9RVwoE3BDeTgVcgL3hW0RgLULiR/Zobqiw/52CPzasmPjkn79+KeywRNqDg YT4TnUGUpX87L5RRASykIrFCPNPt1yzg/vqIwye880h5OJS6/W74zjskpZIKymYA2g qm+t6Z1HfubevLxlQdSEUEe8nmPHJ5Uns5/rDUkOrTG0i0XSecsczJW67s7efbqBDh E0q8l6vrvRiF/uiJbyMhc96JMxGQ/DrRVBO5IfQobwJL7Tp+gfezoynexr/8wk64ZH kpJwwIugHXeN8nf1Tpf8Z34Qjk1IkmqYH89wl160MiVQlG7Dpw2mKgfnxxHDWj5Wit E/0IQw+7aD7sg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Pawel Laszczak , Laurent Pinchart , Peter Chen , Greg Kroah-Hartman , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 5.12 11/79] usb: webcam: Invalid size of Processing Unit Descriptor Date: Sun, 2 May 2021 10:02:08 -0400 Message-Id: <20210502140316.2718705-11-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210502140316.2718705-1-sashal@kernel.org> References: <20210502140316.2718705-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Pawel Laszczak [ Upstream commit 6a154ec9ef6762c774cd2b50215c7a8f0f08a862 ] According with USB Device Class Definition for Video Device the Processing Unit Descriptor bLength should be 12 (10 + bmControlSize), but it has 11. Invalid length caused that Processing Unit Descriptor Test Video form CV tool failed. To fix this issue patch adds bmVideoStandards into uvc_processing_unit_descriptor structure. The bmVideoStandards field was added in UVC 1.1 and it wasn't part of UVC 1.0a. Reviewed-by: Laurent Pinchart Signed-off-by: Pawel Laszczak Reviewed-by: Peter Chen Link: https://lore.kernel.org/r/20210315071748.29706-1-pawell@gli-login.cadence.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/gadget/function/f_uvc.c | 1 + drivers/usb/gadget/legacy/webcam.c | 1 + include/uapi/linux/usb/video.h | 3 ++- 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index ed77a126a74f..f48a00e49794 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -822,6 +822,7 @@ static struct usb_function_instance *uvc_alloc_inst(void) pd->bmControls[0] = 1; pd->bmControls[1] = 0; pd->iProcessing = 0; + pd->bmVideoStandards = 0; od = &opts->uvc_output_terminal; od->bLength = UVC_DT_OUTPUT_TERMINAL_SIZE; diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c index a9f8eb8e1c76..2c9eab2b863d 100644 --- a/drivers/usb/gadget/legacy/webcam.c +++ b/drivers/usb/gadget/legacy/webcam.c @@ -125,6 +125,7 @@ static const struct uvc_processing_unit_descriptor uvc_processing = { .bmControls[0] = 1, .bmControls[1] = 0, .iProcessing = 0, + .bmVideoStandards = 0, }; static const struct uvc_output_terminal_descriptor uvc_output_terminal = { diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h index d854cb19c42c..bfdae12cdacf 100644 --- a/include/uapi/linux/usb/video.h +++ b/include/uapi/linux/usb/video.h @@ -302,9 +302,10 @@ struct uvc_processing_unit_descriptor { __u8 bControlSize; __u8 bmControls[2]; __u8 iProcessing; + __u8 bmVideoStandards; } __attribute__((__packed__)); -#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n)) +#define UVC_DT_PROCESSING_UNIT_SIZE(n) (10+(n)) /* 3.7.2.6. Extension Unit Descriptor */ struct uvc_extension_unit_descriptor { -- 2.30.2