[PATCH 04/36] drm/doc: drop struct_mutex references

[Daniel Vetter]

On Thu, May 07, 2020 at 04:07:50PM +0100, Emil Velikov wrote:
> From: Emil Velikov <emil.velikov at collabora.com>
> 
> There's little point in providing partial and ancient information about
> the struct_mutex. Some drivers are using it, new ones should not.
> 
> As-it this only provides for confusion.
> 
> Signed-off-by: Emil Velikov <emil.velikov at collabora.com>

I think a doc patch to add a big warning for drm_device.struct_mutex would
also be good. The current text is kinda unhelpful.
-Daniel

> ---
>  Documentation/gpu/drm-mm.rst | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
> index 1839762044be..5ba2ead8f317 100644
> --- a/Documentation/gpu/drm-mm.rst
> +++ b/Documentation/gpu/drm-mm.rst
> @@ -178,11 +178,8 @@ GEM Objects Lifetime
>  --------------------
>  
>  All GEM objects are reference-counted by the GEM core. References can be
> -acquired and release by calling drm_gem_object_get() and drm_gem_object_put()
> -respectively. The caller must hold the :c:type:`struct drm_device <drm_device>`
> -struct_mutex lock when calling drm_gem_object_get(). As a convenience, GEM
> -provides drm_gem_object_put_unlocked() functions that can be called without
> -holding the lock.
> +acquired and release by calling drm_gem_object_get() and drm_gem_object_put_unlocked()
> +respectively.
>  
>  When the last reference to a GEM object is released the GEM core calls
>  the :c:type:`struct drm_driver <drm_driver>` gem_free_object_unlocked
> -- 
> 2.25.1
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch