linux-kernel - Re: [PATCH/RFC 03/51] leds: Add an internal led_set_brightness

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Date:	Tue, 21 Jul 2015 11:53:31 +0200
From:	Pavel Machek <pavel@....cz>
To:	Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:	linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org,
	cooloney@...il.com, rpurdie@...ys.net, stsp@...rs.sourceforge.net,
	Andrew Lunn <andrew@...n.ch>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>
Subject: Re: [PATCH/RFC 03/51] leds: Add an internal
 led_set_brightness_nosleep function


>  	/* Set LED brightness level */
> -	/* Must not sleep, use a workqueue if needed */
> +	/* Must not sleep if the driver sets LED_BRIGHTNESS_FAST flag */
>  	void		(*brightness_set)(struct led_classdev *led_cdev,
>  					  enum led_brightness brightness);
>  	/*

Have fun improving static checkers to check for this kind of crazy
semantics.

NAK.

Just use two callbacks, one of them always NULL.
									Pavel

-- 
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