Re: [PATCH] drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers

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Patch resubmitted with intel-gfx mailing list added.

Thanks, Michal

wt., 28 kwi 2020 o 17:15 Daniel Vetter <daniel@xxxxxxxx> napisał(a):
On Sun, Apr 26, 2020 at 12:01:22PM +0200, Michal Orzel wrote:
> As suggested by the TODO list for the kernel DRM subsystem, replace
> the deprecated functions that take/drop modeset locks with new helpers.
>
> Signed-off-by: Michal Orzel <michalorzel.eng@xxxxxxxxx>

Hm can you pls resubmit with intel-gfx mailing list cc'ed? There's a CI
bot there for checking stuff. Patch looks good, thanks a lot for doing
this.

Thanks, Daniel
> ---
>  drivers/gpu/drm/drm_mode_object.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
> index 35c2719..901b078 100644
> --- a/drivers/gpu/drm/drm_mode_object.c
> +++ b/drivers/gpu/drm/drm_mode_object.c
> @@ -402,12 +402,13 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
>  {
>       struct drm_mode_obj_get_properties *arg = data;
>       struct drm_mode_object *obj;
> +     struct drm_modeset_acquire_ctx ctx;
>       int ret = 0;

>       if (!drm_core_check_feature(dev, DRIVER_MODESET))
>               return -EOPNOTSUPP;

> -     drm_modeset_lock_all(dev);
> +     DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

>       obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type);
>       if (!obj) {
> @@ -427,7 +428,7 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
>  out_unref:
>       drm_mode_object_put(obj);
>  out:
> -     drm_modeset_unlock_all(dev);
> +     DRM_MODESET_LOCK_ALL_END(ctx, ret);
>       return ret;
>  }

> @@ -449,12 +450,13 @@ static int set_property_legacy(struct drm_mode_object *obj,
>  {
>       struct drm_device *dev = prop->dev;
>       struct drm_mode_object *ref;
> +     struct drm_modeset_acquire_ctx ctx;
>       int ret = -EINVAL;

>       if (!drm_property_change_valid_get(prop, prop_value, &ref))
>               return -EINVAL;

> -     drm_modeset_lock_all(dev);
> +     DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
>       switch (obj->type) {
>       case DRM_MODE_OBJECT_CONNECTOR:
>               ret = drm_connector_set_obj_prop(obj, prop, prop_value);
> @@ -468,7 +470,7 @@ static int set_property_legacy(struct drm_mode_object *obj,
>               break;
>       }
>       drm_property_change_valid_put(prop, ref);
> -     drm_modeset_unlock_all(dev);
> +     DRM_MODESET_LOCK_ALL_END(ctx, ret);

>       return ret;
>  }
> --
> 2.7.4
>

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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