linux-kernel - [PATCH AUTOSEL 6.6 15/20] media: uvcvideo: Remove mappings form uvc_device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240728154605.2048490-15-sashal@kernel.org>
Date: Sun, 28 Jul 2024 11:45:13 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Ricardo Ribalda <ribalda@...omium.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Sasha Levin <sashal@...nel.org>,
	mchehab@...nel.org,
	linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 15/20] media: uvcvideo: Remove mappings form uvc_device_info

From: Ricardo Ribalda <ribalda@...omium.org>

[ Upstream commit 8c40efeda94108d65c52038ea82ee83b2fb933e2 ]

We do not have any quirk device making us of this. Remove from now. It
can be easily reverted later if needed.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Reviewed-by: Ricardo Ribalda <ribalda@...omium.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/usb/uvc/uvc_ctrl.c | 27 +--------------------------
 drivers/media/usb/uvc/uvcvideo.h |  1 -
 2 files changed, 1 insertion(+), 27 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index e59a463c27618..121e7831d774d 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -2621,32 +2621,7 @@ static void uvc_ctrl_init_ctrl(struct uvc_video_chain *chain,
 	if (!ctrl->initialized)
 		return;
 
-	/*
-	 * First check if the device provides a custom mapping for this control,
-	 * used to override standard mappings for non-conformant devices. Don't
-	 * process standard mappings if a custom mapping is found. This
-	 * mechanism doesn't support combining standard and custom mappings for
-	 * a single control.
-	 */
-	if (chain->dev->info->mappings) {
-		bool custom = false;
-
-		for (i = 0; chain->dev->info->mappings[i]; ++i) {
-			const struct uvc_control_mapping *mapping =
-				chain->dev->info->mappings[i];
-
-			if (uvc_entity_match_guid(ctrl->entity, mapping->entity) &&
-			    ctrl->info.selector == mapping->selector) {
-				__uvc_ctrl_add_mapping(chain, ctrl, mapping);
-				custom = true;
-			}
-		}
-
-		if (custom)
-			return;
-	}
-
-	/* Process common mappings next. */
+	/* Process common mappings. */
 	for (i = 0; i < ARRAY_SIZE(uvc_ctrl_mappings); ++i) {
 		const struct uvc_control_mapping *mapping = &uvc_ctrl_mappings[i];
 
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 88218693f6f0b..06c1a414ea5b2 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -523,7 +523,6 @@ struct uvc_device_info {
 	u32	quirks;
 	u32	meta_format;
 	u16	uvc_version;
-	const struct uvc_control_mapping **mappings;
 };
 
 struct uvc_status_streaming {
-- 
2.43.0