[PATCH 03/13] drm: Add drm_puts() to complement drm_printf()

[Daniel Vetter]

On Thu, Jul 12, 2018 at 12:59:20PM -0600, Jordan Crouse wrote:
> Add drm_puts() for a much faster path to print constant strings
> into a drm_printer object with memcpy and friends. This can
> shave seconds off of really large outputs such as GPU dumps.
> 
> If the drm_printer object supports a custom puts function then
> use that otherwise fall back to the slower legacy printf call.
> 
> Signed-off-by: Jordan Crouse <jcrouse at codeaurora.org>
> ---
>  drivers/gpu/drm/drm_print.c | 9 +++++++++
>  include/drm/drm_print.h     | 2 ++
>  2 files changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
> index 03d1f98e5ac7..8fd489248a50 100644
> --- a/drivers/gpu/drm/drm_print.c
> +++ b/drivers/gpu/drm/drm_print.c
> @@ -122,6 +122,15 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
>  }
>  EXPORT_SYMBOL(__drm_printfn_debug);
>  

Please some small kerneldoc here, with that

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

btw want commit rights for drm-misc for stuff like this?
-Daniel

> +void drm_puts(struct drm_printer *p, const char *str)
> +{
> +	if (p->puts)
> +		p->puts(p, str);
> +	else
> +		drm_printf(p, "%s", str);
> +}
> +EXPORT_SYMBOL(drm_puts);
> +
>  /**
>   * drm_printf - print to a &drm_printer stream
>   * @p: the &drm_printer
> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
> index 0ea440fb5ec3..b16f4ecaa984 100644
> --- a/include/drm/drm_print.h
> +++ b/include/drm/drm_print.h
> @@ -69,6 +69,7 @@
>  struct drm_printer {
>  	/* private: */
>  	void (*printfn)(struct drm_printer *p, struct va_format *vaf);
> +	void (*puts)(struct drm_printer *p, const char *str);
>  	void *arg;
>  	const char *prefix;
>  };
> @@ -80,6 +81,7 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);
>  
>  __printf(2, 3)
>  void drm_printf(struct drm_printer *p, const char *f, ...);
> +void drm_puts(struct drm_printer *p, const char *str);
>  
>  __printf(2, 0)
>  /**
> -- 
> 2.17.1
> 
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> dri-devel at lists.freedesktop.org
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch