linux-kernel - [PATCH v2 08/11] media: v4l2: Remove vidioc_g

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Message-Id: <20241210-queryctrl-v2-8-c0a33d69f416@chromium.org>
Date: Tue, 10 Dec 2024 09:28:52 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Mike Isely <isely@...ox.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Andy Shevchenko <andy@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Hans Verkuil <hverkuil@...all.nl>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-staging@...ts.linux.dev, Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 08/11] media: v4l2: Remove vidioc_g_ctrl callback

All the drivers either use the control framework or provide a
vidioc_g_ext_ctrls callback. We can remove this callback.

Thanks for your service!

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/v4l2-core/v4l2-dev.c   | 2 +-
 drivers/media/v4l2-core/v4l2-ioctl.c | 2 --
 include/media/v4l2-ioctl.h           | 4 ----
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index 5267a0686400..068ee67cd574 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -576,7 +576,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
 		__set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls);
 	if (vdev->ctrl_handler || ops->vidioc_query_ext_ctrl)
 		__set_bit(_IOC_NR(VIDIOC_QUERY_EXT_CTRL), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_g_ctrl || ops->vidioc_g_ext_ctrls)
+	if (vdev->ctrl_handler || ops->vidioc_g_ext_ctrls)
 		__set_bit(_IOC_NR(VIDIOC_G_CTRL), valid_ioctls);
 	if (vdev->ctrl_handler || ops->vidioc_s_ctrl || ops->vidioc_s_ext_ctrls)
 		__set_bit(_IOC_NR(VIDIOC_S_CTRL), valid_ioctls);
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index f512d62ab0c6..03a62fa960b6 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -2378,8 +2378,6 @@ static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
 		return v4l2_g_ctrl(vfh->ctrl_handler, p);
 	if (vfd->ctrl_handler)
 		return v4l2_g_ctrl(vfd->ctrl_handler, p);
-	if (ops->vidioc_g_ctrl)
-		return ops->vidioc_g_ctrl(file, fh, p);
 	if (ops->vidioc_g_ext_ctrls == NULL)
 		return -ENOTTY;
 
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 013996c33a9e..4d69128023f8 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -195,8 +195,6 @@ struct v4l2_fh;
  *	:ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl
  * @vidioc_query_ext_ctrl: pointer to the function that implements
  *	:ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl
- * @vidioc_g_ctrl: pointer to the function that implements
- *	:ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl
  * @vidioc_s_ctrl: pointer to the function that implements
  *	:ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl
  * @vidioc_g_ext_ctrls: pointer to the function that implements
@@ -461,8 +459,6 @@ struct v4l2_ioctl_ops {
 		/* Control handling */
 	int (*vidioc_query_ext_ctrl)(struct file *file, void *fh,
 				     struct v4l2_query_ext_ctrl *a);
-	int (*vidioc_g_ctrl)(struct file *file, void *fh,
-			     struct v4l2_control *a);
 	int (*vidioc_s_ctrl)(struct file *file, void *fh,
 			     struct v4l2_control *a);
 	int (*vidioc_g_ext_ctrls)(struct file *file, void *fh,

-- 
2.47.0.338.g60cca15819-goog