[Intel-gfx] [PATCH 1/3] drm: extra printk() wrapper macros

[Tvrtko Ursulin]

On 11/07/16 19:01, Dave Gordon wrote:
> We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
> provides several other useful intermediate levels such as NOTICE and
> WARNING. So this patch fills out the set by providing both regular and
> once-only macros for each of the levels INFO, NOTICE, and WARNING, using
> a common underlying macro that does all the token-pasting.
>
> DRM_ERROR is unchanged, as it's not just a printk wrapper.
>
> Signed-off-by: Dave Gordon <david.s.gordon at intel.com>
> ---
>   include/drm/drmP.h | 26 ++++++++++++++++++++------
>   1 file changed, 20 insertions(+), 6 deletions(-)
>
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index cf918e3e..82648b1 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -162,6 +162,26 @@ void drm_err(const char *format, ...);
>   /** \name Macros to make printk easier */
>   /*@{*/
>
> +#define	_DRM_PRINTK(once, level, fmt, ...)				\
> +	do {								\
> +		printk##once(KERN_##level "[" DRM_NAME "] " fmt,	\
> +			     ##__VA_ARGS__);				\
> +	} while (0)
> +
> +#define DRM_INFO(fmt, ...)						\
> +	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
> +#define DRM_NOTE(fmt, ...)						\
> +	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)

To me DRM_NOTICE would be better to keep consistent with kernel naming 
for the equivalent log level.

> +#define DRM_WARN(fmt, ...)						\
> +	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
> +
> +#define DRM_INFO_ONCE(fmt, ...)						\
> +	_DRM_PRINTK(_once, INFO, fmt, __VA_ARGS__)
> +#define DRM_NOTE_ONCE(fmt, ...)					\
> +	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
> +#define DRM_WARN_ONCE(fmt, ...)						\
> +	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
> +
>   /**
>    * Error output.
>    *
> @@ -187,12 +207,6 @@ void drm_err(const char *format, ...);
>   		drm_err(fmt, ##__VA_ARGS__);				\
>   })
>
> -#define DRM_INFO(fmt, ...)				\
> -	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
> -
> -#define DRM_INFO_ONCE(fmt, ...)				\
> -	printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
> -
>   /**
>    * Debug output.
>    *
>

Otherwise acked by me.

Regards,

Tvrtko