linux-kernel - Re: [RFC PATCH v2 1/4] drm_print.h: rewrap __DRM_DEFINE_DBG

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Date:   Sun, 11 Jul 2021 09:17:21 -0700
From:   Joe Perches <joe@...ches.com>
To:     Jim Cromie <jim.cromie@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Zhi Wang <zhi.a.wang@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org
Cc:     jbaron@...mai.com
Subject: Re: [RFC PATCH v2 1/4] drm_print.h: rewrap
 __DRM_DEFINE_DBG_RATELIMITED macro

On Sat, 2021-07-10 at 23:49 -0600, Jim Cromie wrote:
> whitespace only, to diff-minimize a later commit.
> no functional changes
[]
> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
[]
> @@ -524,19 +524,24 @@ void __drm_err(const char *format, ...);
>  #define DRM_DEBUG_DP(fmt, ...)						\
>  	__drm_dbg(DRM_UT_DP, fmt, ## __VA_ARGS__)
>  
> 
> -#define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...)					\
> -({												\
> -	static DEFINE_RATELIMIT_STATE(rs_, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);\
> -	const struct drm_device *drm_ = (drm);							\
> -												\
> -	if (drm_debug_enabled(DRM_UT_ ## category) && __ratelimit(&rs_))			\
> -		drm_dev_printk(drm_ ? drm_->dev : NULL, KERN_DEBUG, fmt, ## __VA_ARGS__);	\
> +#define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...)		\
> +({									\
> +	static DEFINE_RATELIMIT_STATE(rs_,				\
> +				      DEFAULT_RATELIMIT_INTERVAL,	\
> +				      DEFAULT_RATELIMIT_BURST);		\
> +	const struct drm_device *drm_ = (drm);				\
> +									\
> +	if (drm_debug_enabled(DRM_UT_ ## category)			\
> +	    && __ratelimit(&rs_))					\

Though I don't really see the need for the change, the typical style
has the logical continuation at the end of the test.

	if (drm_debug_enabled(DRM_UT_ ## category) &&			\
	    __ratelimit(&rs_))						\