Re: [PATCH 06/12] drm/edid: add typedef for block read function

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On Thu, Apr 07, 2022 at 12:14:32PM +0300, Jani Nikula wrote:
> Make the callback a bit easier on the eye.
> 
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
>  drivers/gpu/drm/drm_edid.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index ba54701f91f6..926ffe5cd97e 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -2037,10 +2037,11 @@ int drm_add_override_edid_modes(struct drm_connector *connector)
>  }
>  EXPORT_SYMBOL(drm_add_override_edid_modes);
>  
> +typedef int read_block_fn(void *context, u8 *buf, unsigned int block, size_t len);
> +

The header still has the eyesore. Maybe we want to put the typedef
there?

Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

>  static struct edid *drm_do_get_edid_base_block(struct drm_connector *connector,
> -	int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
> -			      size_t len),
> -	void *data)
> +					       read_block_fn read_block,
> +					       void *context)
>  {
>  	int *null_edid_counter = connector ? &connector->null_edid_counter : NULL;
>  	bool *edid_corrupt = connector ? &connector->edid_corrupt : NULL;
> @@ -2053,7 +2054,7 @@ static struct edid *drm_do_get_edid_base_block(struct drm_connector *connector,
>  
>  	/* base block fetch */
>  	for (try = 0; try < 4; try++) {
> -		if (get_edid_block(data, edid, 0, EDID_LENGTH))
> +		if (read_block(context, edid, 0, EDID_LENGTH))
>  			goto out;
>  		if (drm_edid_block_valid(edid, 0, false, edid_corrupt))
>  			break;
> @@ -2097,9 +2098,8 @@ static struct edid *drm_do_get_edid_base_block(struct drm_connector *connector,
>   * Return: Pointer to valid EDID or NULL if we couldn't find any.
>   */
>  struct edid *drm_do_get_edid(struct drm_connector *connector,
> -	int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
> -			      size_t len),
> -	void *data)
> +			     read_block_fn read_block,
> +			     void *context)
>  {
>  	int j, invalid_blocks = 0;
>  	struct edid *edid, *new, *override;
> @@ -2108,7 +2108,7 @@ struct edid *drm_do_get_edid(struct drm_connector *connector,
>  	if (override)
>  		return override;
>  
> -	edid = drm_do_get_edid_base_block(connector, get_edid_block, data);
> +	edid = drm_do_get_edid_base_block(connector, read_block, context);
>  	if (!edid)
>  		return NULL;
>  
> @@ -2125,7 +2125,7 @@ struct edid *drm_do_get_edid(struct drm_connector *connector,
>  		int try;
>  
>  		for (try = 0; try < 4; try++) {
> -			if (get_edid_block(data, block, j, EDID_LENGTH))
> +			if (read_block(context, block, j, EDID_LENGTH))
>  				goto out;
>  			if (drm_edid_block_valid(block, j, false, NULL))
>  				break;
> -- 
> 2.30.2

-- 
Ville Syrjälä
Intel



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