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Date:   Wed, 15 Jun 2022 15:45:32 +0300
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Subject: Re: [PATCH v3 1/2] drm: Add DRM_GEM_FOPS
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To:     Rob Clark <robdclark@gmail.com>, dri-devel@lists.freedesktop.org
Cc:     freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Chris Healy <cphealy@gmail.com>,
        Rob Clark <robdclark@chromium.org>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        open list <linux-kernel@vger.kernel.org>
References: <20220609174213.2265938-1-robdclark@gmail.com>
From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
In-Reply-To: <20220609174213.2265938-1-robdclark@gmail.com>
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Precedence: bulk

On 09/06/2022 20:42, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> The DEFINE_DRM_GEM_FOPS() helper is a bit limiting if a driver wants to
> provide additional file ops, like show_fdinfo().
> 
> v2: Split out DRM_GEM_FOPS instead of making DEFINE_DRM_GEM_FOPS
>      varardic
> v3: nits
> 
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>

I suspect that with Tomas's ack we can pick this through the drm/msm. Is 
this correct? (I'll then pick it for the msm-lumag).

> ---
>   include/drm/drm_gem.h | 26 ++++++++++++++++++--------
>   1 file changed, 18 insertions(+), 8 deletions(-)
> 
> diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
> index 9d7c61a122dc..87cffc9efa85 100644
> --- a/include/drm/drm_gem.h
> +++ b/include/drm/drm_gem.h
> @@ -314,6 +314,23 @@ struct drm_gem_object {
>   	const struct drm_gem_object_funcs *funcs;
>   };
>   
> +/**
> + * DRM_GEM_FOPS - Default drm GEM file operations
> + *
> + * This macro provides a shorthand for setting the GEM file ops in the
> + * &file_operations structure.  If all you need are the default ops, use
> + * DEFINE_DRM_GEM_FOPS instead.
> + */
> +#define DRM_GEM_FOPS \
> +	.open		= drm_open,\
> +	.release	= drm_release,\
> +	.unlocked_ioctl	= drm_ioctl,\
> +	.compat_ioctl	= drm_compat_ioctl,\
> +	.poll		= drm_poll,\
> +	.read		= drm_read,\
> +	.llseek		= noop_llseek,\
> +	.mmap		= drm_gem_mmap
> +
>   /**
>    * DEFINE_DRM_GEM_FOPS() - macro to generate file operations for GEM drivers
>    * @name: name for the generated structure
> @@ -330,14 +347,7 @@ struct drm_gem_object {
>   #define DEFINE_DRM_GEM_FOPS(name) \
>   	static const struct file_operations name = {\
>   		.owner		= THIS_MODULE,\
> -		.open		= drm_open,\
> -		.release	= drm_release,\
> -		.unlocked_ioctl	= drm_ioctl,\
> -		.compat_ioctl	= drm_compat_ioctl,\
> -		.poll		= drm_poll,\
> -		.read		= drm_read,\
> -		.llseek		= noop_llseek,\
> -		.mmap		= drm_gem_mmap,\
> +		DRM_GEM_FOPS,\
>   	}
>   
>   void drm_gem_object_release(struct drm_gem_object *obj);


-- 
With best wishes
Dmitry