[Intel-gfx] [PATCH v3 02/10] drm/fb-helper: Reshuffle code for subsequent patches

[Daniel Vetter]

On Tue, Mar 21, 2017 at 09:13:50AM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
> 
> An unlocked version of the drm_fb_helper_add_one_connector() function
> will be added in a subsequent patch. Reshuffle the code separately to
> make the diff more readable later on.
> 
> Tested-by: John Stultz <john.stultz at linaro.org>
> Signed-off-by: Thierry Reding <treding at nvidia.com>

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

> ---
>  drivers/gpu/drm/drm_fb_helper.c | 59 ++++++++++++++++++++---------------------
>  1 file changed, 29 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 2be1cd949cec..875a49048222 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -109,6 +109,35 @@ static DEFINE_MUTEX(kernel_fb_helper_lock);
>  	for (({ lockdep_assert_held(&(fbh)->dev->mode_config.mutex); }), \
>  	     i__ = 0; i__ < (fbh)->connector_count; i__++)
>  
> +int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector)
> +{
> +	struct drm_fb_helper_connector **temp;
> +	struct drm_fb_helper_connector *fb_helper_connector;
> +
> +	if (!drm_fbdev_emulation)
> +		return 0;
> +
> +	WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex));
> +	if (fb_helper->connector_count + 1 > fb_helper->connector_info_alloc_count) {
> +		temp = krealloc(fb_helper->connector_info, sizeof(struct drm_fb_helper_connector *) * (fb_helper->connector_count + 1), GFP_KERNEL);
> +		if (!temp)
> +			return -ENOMEM;
> +
> +		fb_helper->connector_info_alloc_count = fb_helper->connector_count + 1;
> +		fb_helper->connector_info = temp;
> +	}
> +
> +	fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL);
> +	if (!fb_helper_connector)
> +		return -ENOMEM;
> +
> +	drm_connector_get(connector);
> +	fb_helper_connector->connector = connector;
> +	fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
> +	return 0;
> +}
> +EXPORT_SYMBOL(drm_fb_helper_add_one_connector);
> +
>  /**
>   * drm_fb_helper_single_add_all_connectors() - add all connectors to fbdev
>   * 					       emulation helper
> @@ -162,36 +191,6 @@ int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
>  }
>  EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
>  
> -int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector)
> -{
> -	struct drm_fb_helper_connector **temp;
> -	struct drm_fb_helper_connector *fb_helper_connector;
> -
> -	if (!drm_fbdev_emulation)
> -		return 0;
> -
> -	WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex));
> -	if (fb_helper->connector_count + 1 > fb_helper->connector_info_alloc_count) {
> -		temp = krealloc(fb_helper->connector_info, sizeof(struct drm_fb_helper_connector *) * (fb_helper->connector_count + 1), GFP_KERNEL);
> -		if (!temp)
> -			return -ENOMEM;
> -
> -		fb_helper->connector_info_alloc_count = fb_helper->connector_count + 1;
> -		fb_helper->connector_info = temp;
> -	}
> -
> -
> -	fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL);
> -	if (!fb_helper_connector)
> -		return -ENOMEM;
> -
> -	drm_connector_get(connector);
> -	fb_helper_connector->connector = connector;
> -	fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
> -	return 0;
> -}
> -EXPORT_SYMBOL(drm_fb_helper_add_one_connector);
> -
>  int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
>  				       struct drm_connector *connector)
>  {
> -- 
> 2.12.0
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch