[PATCH] drm: remove unused function 'drm_property_unreference_blob_locked'

[Jani Nikula]

On Wed, 20 May 2015, Arnd Bergmann <arnd at arndb.de> wrote:
> This function was added recently but never used, and causes
> a compile warning:
>
> drivers/gpu/drm/drm_crtc.c:4324:13: warning: 'drm_property_unreference_blob_locked' defined but not used [-Wunused-function]
>
> Removing that function avoids the warning. It can simply be put
> back in case it is needed in the future.

http://mid.gmane.org/CAPj87rMPtafeYNzgXoP+fx0dAqhwaD7kdnJgqb_vdbPtiOrXPg@mail.gmail.com

>
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> Fixes: 6bcacf51d05 ("drm: Add reference counting to blob properties")
> ---
> The broken patch is currently in
> git://anongit.freedesktop.org/drm-intel#topic/drm-misc
>
> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
> index 4059f065c854..6e60f71bbf46 100644
> --- a/drivers/gpu/drm/drm_crtc.c
> +++ b/drivers/gpu/drm/drm_crtc.c
> @@ -4313,25 +4313,6 @@ void drm_property_unreference_blob(struct drm_property_blob *blob)
>  EXPORT_SYMBOL(drm_property_unreference_blob);
>  
>  /**
> - * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held
> - *
> - * Drop a reference on a blob property. May free the object. This must be
> - * called with blob_lock held.
> - *
> - * @param dev  Device the blob was created on
> - * @param blob Pointer to blob property
> - */
> -static void drm_property_unreference_blob_locked(struct drm_property_blob *blob)
> -{
> -	if (!blob)
> -		return;
> -
> -	DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount));
> -
> -	kref_put(&blob->refcount, drm_property_free_blob);
> -}
> -
> -/**
>   * drm_property_reference_blob - Take a reference on an existing property
>   *
>   * Take a new reference on an existing blob property.
>
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-- 
Jani Nikula, Intel Open Source Technology Center