v4l2_subdev_alloc_state() and v4l2_subdev_free_state() are not supposed
to be used by the drivers. However, we do have a few drivers that use
those at the moment, so we need to expose these functions for the time
being.
Prefix the functions with __ to mark the functions as internal.
At the same time, rename them to v4l2_subdev_state_alloc and
v4l2_subdev_state_free to match the style used for other functions like
video_device_alloc() and media_request_alloc().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Reviewed-by: Jacopo Mondi <jacopo@xxxxxxxxxx>
---
drivers/media/platform/rcar-vin/rcar-v4l2.c | 8 ++++++--
drivers/media/platform/vsp1/vsp1_entity.c | 8 ++++++--
drivers/media/v4l2-core/v4l2-subdev.c | 12 ++++++------
drivers/staging/media/tegra-video/vi.c | 8 ++++++--
include/media/v4l2-subdev.h | 14 +++++++++-----
5 files changed, 33 insertions(+), 17 deletions(-)
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 2e60b9fce03b..da88f968c31a 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -263,7 +263,11 @@ static int rvin_try_format(struct rvin_dev *vin, u32 which,
u32 width, height;
int ret;
- sd_state = v4l2_subdev_alloc_state(sd);
+ /*
+ * FIXME: Drop this call, drivers are not supposed to use
+ * __v4l2_subdev_state_alloc().
+ */
+ sd_state = __v4l2_subdev_state_alloc(sd);
if (IS_ERR(sd_state))
return PTR_ERR(sd_state);
@@ -299,7 +303,7 @@ static int rvin_try_format(struct rvin_dev *vin, u32 which,
rvin_format_align(vin, pix);
done:
- v4l2_subdev_free_state(sd_state);
+ __v4l2_subdev_state_free(sd_state);
return ret;
}
diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
index 823c15facd1b..c82b3fb7b89a 100644
--- a/drivers/media/platform/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/vsp1/vsp1_entity.c
@@ -675,7 +675,11 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
* Allocate the pad configuration to store formats and selection
* rectangles.
*/
- entity->config = v4l2_subdev_alloc_state(&entity->subdev);
+ /*
+ * FIXME: Drop this call, drivers are not supposed to use
+ * __v4l2_subdev_state_alloc().
+ */
+ entity->config = __v4l2_subdev_state_alloc(&entity->subdev);
if (IS_ERR(entity->config)) {
media_entity_cleanup(&entity->subdev.entity);
return PTR_ERR(entity->config);
@@ -690,6 +694,6 @@ void vsp1_entity_destroy(struct vsp1_entity *entity)
entity->ops->destroy(entity);
if (entity->subdev.ctrl_handler)
v4l2_ctrl_handler_free(entity->subdev.ctrl_handler);
- v4l2_subdev_free_state(entity->config);
+ __v4l2_subdev_state_free(entity->config);
media_entity_cleanup(&entity->subdev.entity);
}
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 30eb50407db5..376595954db0 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -28,7 +28,7 @@ static int subdev_fh_init(struct v4l2_subdev_fh *fh, struct v4l2_subdev *sd)
{
struct v4l2_subdev_state *state;
- state = v4l2_subdev_alloc_state(sd);
+ state = __v4l2_subdev_state_alloc(sd);
if (IS_ERR(state))
return PTR_ERR(state);
@@ -39,7 +39,7 @@ static int subdev_fh_init(struct v4l2_subdev_fh *fh, struct v4l2_subdev *sd)
static void subdev_fh_free(struct v4l2_subdev_fh *fh)
{
- v4l2_subdev_free_state(fh->state);
+ __v4l2_subdev_state_free(fh->state);
fh->state = NULL;
}
@@ -862,7 +862,7 @@ int v4l2_subdev_link_validate(struct media_link *link)
}
EXPORT_SYMBOL_GPL(v4l2_subdev_link_validate);
-struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd)
+struct v4l2_subdev_state *__v4l2_subdev_state_alloc(struct v4l2_subdev *sd)
{
struct v4l2_subdev_state *state;
int ret;
@@ -895,9 +895,9 @@ struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd)
return ERR_PTR(ret);
}
-EXPORT_SYMBOL_GPL(v4l2_subdev_alloc_state);
+EXPORT_SYMBOL_GPL(__v4l2_subdev_state_alloc);
-void v4l2_subdev_free_state(struct v4l2_subdev_state *state)
+void __v4l2_subdev_state_free(struct v4l2_subdev_state *state)
{
if (!state)
return;
@@ -905,7 +905,7 @@ void v4l2_subdev_free_state(struct v4l2_subdev_state *state)
kvfree(state->pads);
kfree(state);
}
-EXPORT_SYMBOL_GPL(v4l2_subdev_free_state);
+EXPORT_SYMBOL_GPL(__v4l2_subdev_state_free);
#endif /* CONFIG_MEDIA_CONTROLLER */
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index d1f43f465c22..07d368f345cd 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -507,7 +507,11 @@ static int __tegra_channel_try_format(struct tegra_vi_channel *chan,
if (!subdev)
return -ENODEV;
- sd_state = v4l2_subdev_alloc_state(subdev);
+ /*
+ * FIXME: Drop this call, drivers are not supposed to use
+ * __v4l2_subdev_state_alloc().
+ */
+ sd_state = __v4l2_subdev_state_alloc(subdev);
if (IS_ERR(sd_state))
return PTR_ERR(sd_state);
/*
@@ -558,7 +562,7 @@ static int __tegra_channel_try_format(struct tegra_vi_channel *chan,
v4l2_fill_pix_format(pix, &fmt.format);
tegra_channel_fmt_align(chan, pix, fmtinfo->bpp);
- v4l2_subdev_free_state(sd_state);
+ __v4l2_subdev_state_free(sd_state);
return 0;
}
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 6c153b33bb04..5d6f56648ad6 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -1122,20 +1122,24 @@ int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd,
int v4l2_subdev_link_validate(struct media_link *link);
/**
- * v4l2_subdev_alloc_state - allocate v4l2_subdev_state
+ * __v4l2_subdev_state_alloc - allocate v4l2_subdev_state
*
* @sd: pointer to &struct v4l2_subdev for which the state is being allocated.
*
- * Must call v4l2_subdev_free_state() when state is no longer needed.
+ * Must call __v4l2_subdev_state_free() when state is no longer needed.
+ *
+ * Not to be called directly by the drivers.
*/
-struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd);
+struct v4l2_subdev_state *__v4l2_subdev_state_alloc(struct v4l2_subdev *sd);
/**
- * v4l2_subdev_free_state - free a v4l2_subdev_state
+ * __v4l2_subdev_state_free - free a v4l2_subdev_state
*
* @state: v4l2_subdev_state to be freed.
+ *
+ * Not to be called directly by the drivers.
*/
-void v4l2_subdev_free_state(struct v4l2_subdev_state *state);
+void __v4l2_subdev_state_free(struct v4l2_subdev_state *state);
#endif /* CONFIG_MEDIA_CONTROLLER */
--
2.25.1
