linux-kernel - Re: [PATCH] introduce is_valid_gpio() predicate and use it in gpiolib.c

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Date:	Sun, 10 Feb 2008 11:18:04 -0800
From:	David Brownell <david-b@...bell.net>
To:	Guennadi Liakhovetski <g.liakhovetski@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] introduce is_valid_gpio() predicate and use it in gpiolib.c

I like this, but can't resist making the "Andrew Comment":

> --- a/include/asm-generic/gpio.h
> +++ b/include/asm-generic/gpio.h
> @@ -16,6 +16,8 @@
>  #define ARCH_NR_GPIOS		256
>  #endif
>  
> +#define is_valid_gpio(gpio)	((unsigned int)(gpio) < ARCH_NR_GPIOS)

Please make this an inline C function.  :)


> +
>  struct seq_file;
>  
>  /**
> 


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