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From: Ezequiel Garcia <ezequiel@collabora.com>
To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: kernel@collabora.com, Jonas Karlman <jonas@kwiboo.se>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	Nicolas Dufresne <nicolas.dufresne@collabora.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Maxime Ripard <mripard@kernel.org>,
	Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Ezequiel Garcia <ezequiel@collabora.com>
Subject: [PATCH v3 01/13] media: ctrls: Add validate failure debug message
Date: Wed, 18 Nov 2020 15:46:48 -0300	[thread overview]
Message-ID: <20201118184700.331213-2-ezequiel@collabora.com> (raw)
In-Reply-To: <20201118184700.331213-1-ezequiel@collabora.com>

Add a debug message for control validation (validate_new)
failures. This is useful to debug issues with ioctls such
as VIDIOC_TRY_EXT_CTRLS and VIDIOC_S_EXT_CTRLS.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index e4613fa61d31..3896da01320e 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -4115,8 +4115,13 @@ static int try_set_ext_ctrls_common(struct v4l2_fh *fh,
 			struct v4l2_ctrl *ctrl = helpers[idx].ref->ctrl;
 
 			ret = user_to_new(cs->controls + idx, ctrl);
-			if (!ret && ctrl->is_ptr)
+			if (!ret && ctrl->is_ptr) {
 				ret = validate_new(ctrl, ctrl->p_new);
+				if (ret)
+					dprintk(vdev,
+						"failed to validate control %s (%d)\n",
+						v4l2_ctrl_get_name(ctrl->id), ret);
+			}
 			idx = helpers[idx].next;
 		} while (!ret && idx);
 
-- 
2.27.0


  reply	other threads:[~2020-11-18 18:47 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-18 18:46 [PATCH v3 00/13] Stateless H.264 de-staging Ezequiel Garcia
2020-11-18 18:46 ` Ezequiel Garcia [this message]
2020-11-18 18:46 ` [PATCH v3 02/13] media: rkvdec: h264: Support profile and level controls Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 03/13] media: cedrus: h264: Support profile controls Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 04/13] media: Rename stateful codec control macros Ezequiel Garcia
2020-11-20  9:20   ` Hans Verkuil
2020-11-18 18:46 ` [PATCH v3 05/13] media: Clean stateless control includes Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 06/13] media: uapi: h264: Add profile_idc macros Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 07/13] media: controls: Validate H264 stateless controls Ezequiel Garcia
2020-11-19 12:09   ` Ezequiel Garcia
2020-11-20  9:30   ` Hans Verkuil
2020-11-22  0:48     ` Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 08/13] media: controls: Add the stateless codec control class Ezequiel Garcia
2020-11-20  9:33   ` Hans Verkuil
2020-11-18 18:46 ` [PATCH v3 09/13] media: uapi: Move parsed H264 pixel format out of staging Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 10/13] media: uapi: Move the H264 stateless control types " Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 11/13] media: controls: Log H264 stateless controls in .std_log Ezequiel Garcia
2020-11-18 18:46 ` [PATCH v3 12/13] media: uapi: move H264 stateless controls out of staging Ezequiel Garcia
2020-11-19 15:17   ` Ezequiel Garcia
2020-11-18 18:47 ` [PATCH v3 13/13] media: docs: Move the H264 stateless codec uAPI Ezequiel Garcia
2020-11-20  8:45 ` [PATCH v3 00/13] Stateless H.264 de-staging Hans Verkuil

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