From patchwork Tue Dec 15 15:44:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ricardo Ribalda X-Patchwork-Id: 11975049 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 E88D5C4361B for ; Tue, 15 Dec 2020 15:45:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B84C02184D for ; Tue, 15 Dec 2020 15:45:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730337AbgLOPpu (ORCPT ); Tue, 15 Dec 2020 10:45:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730291AbgLOPph (ORCPT ); Tue, 15 Dec 2020 10:45:37 -0500 Received: from mail-wr1-x444.google.com (mail-wr1-x444.google.com [IPv6:2a00:1450:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F4DFC06138C for ; Tue, 15 Dec 2020 07:44:56 -0800 (PST) Received: by mail-wr1-x444.google.com with SMTP id d26so7095592wrb.12 for ; Tue, 15 Dec 2020 07:44:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3QcJmNeaUOwN3Wix2WmoXCV3cAVx0ZDDOGTBDar8mqQ=; b=NSCnv5CjE5mL/htpsDuZ0cFHkbw9+5eMvpcr3xRCxA8MD6DM0DOpTDTn90PH6aldJQ DlA9I55SzMX9Vcp/xwd4u5JYmajfIy8dUmb1mxQAZ11N/zpVKNugTarg0ufnE/Ic0H/h eK9GtbcraVNTWm52pQZPVOJlpxK+9OY44ULYI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3QcJmNeaUOwN3Wix2WmoXCV3cAVx0ZDDOGTBDar8mqQ=; b=HymPkb+YK3J+0CWHOeBkZaKsQZ56VgYWCWE5NzKFpHYMnpdStDjcRAt+2CPWr4/TKW Ftq+LEyqbMLJFqdhMrwBHb7RPyvhMqVOkozz7IAkwBBmSudRYC6JWDevJ0Ojo6DMF7Lg cJd4w6GQRSZf9fWLXnxv4GYkmuewSk7u6w1KspEXUhORCt4Oo7WYzPuxSI+RneOw+LHd 3uOtagpPEFeMwyx1qC687B6ni+nM6eCur2YqZ2X/sYYJfmYXT7mws8OKKYQZmOBw7Xv1 DnolCpFa0wp5R6zIZwYGOtDBGxD0F7zF50qweJMT1KV1VPGM06xcEXSbjM8YlNGA/Ec1 C0sA== X-Gm-Message-State: AOAM533RBj5Quq3A8q+hMSGw2+GHZr1wwGHx7I5nSCa84SSkG64U92CE 8pW+5tqR9hGvppD/i9a/RYaMvQ== X-Google-Smtp-Source: ABdhPJzq3amJoFPTUqs7d4HxdPWwkXDFF9fwLcAftuW38ATYEg/vKIn18tvI9ZTIln2IAduptodCtw== X-Received: by 2002:adf:ce84:: with SMTP id r4mr34193271wrn.91.1608047095167; Tue, 15 Dec 2020 07:44:55 -0800 (PST) Received: from alco.lan ([80.71.134.83]) by smtp.gmail.com with ESMTPSA id 125sm38204141wmc.27.2020.12.15.07.44.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Dec 2020 07:44:54 -0800 (PST) From: Ricardo Ribalda To: Laurent Pinchart , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ricardo Ribalda Subject: [PATCH v4 2/9] media: uvcvideo: Allow external entities Date: Tue, 15 Dec 2020 16:44:32 +0100 Message-Id: <20201215154439.69062-3-ribalda@chromium.org> X-Mailer: git-send-email 2.29.2.684.gfbc64c5ab5-goog In-Reply-To: <20201215154439.69062-1-ribalda@chromium.org> References: <20201215154439.69062-1-ribalda@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Increase the size of the id, to avoid collisions with external entities. Signed-off-by: Ricardo Ribalda Reviewed-by: Laurent Pinchart --- drivers/media/usb/uvc/uvc_driver.c | 2 +- drivers/media/usb/uvc/uvcvideo.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 4cdd65d252d9..9f4451a2e0a6 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -1024,7 +1024,7 @@ static const u8 uvc_media_transport_input_guid[16] = UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT; static const u8 uvc_processing_guid[16] = UVC_GUID_UVC_PROCESSING; -static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, +static struct uvc_entity *uvc_alloc_entity(u16 type, u16 id, unsigned int num_pads, unsigned int extra_size) { struct uvc_entity *entity; diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index df7bf2d104a3..00f985001c1d 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -301,7 +301,7 @@ struct uvc_entity { * chain. */ unsigned int flags; - u8 id; + u16 id; /* 0-255: usb entity. 256-65535: external entities */ u16 type; char name[64]; u8 guid[16];