linux-kernel - Re: [patch 2.6.20-rc1 4/6] PXA GPIO wrappers

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Message-Id: <20061220221252.732f4e97.akpm@osdl.org>
Date:	Wed, 20 Dec 2006 22:12:52 -0800
From:	Andrew Morton <akpm@...l.org>
To:	David Brownell <david-b@...bell.net>
Cc:	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Andrew Victor <andrew@...people.com>,
	Bill Gatliff <bgat@...lgatliff.com>,
	Haavard Skinnemoen <hskinnemoen@...el.com>, jamey.hicks@...com,
	Kevin Hilman <khilman@...sta.com>,
	Nicolas Pitre <nico@....org>,
	Russell King <rmk@....linux.org.uk>,
	Tony Lindgren <tony@...mide.com>,
	pHilipp Zabel <philipp.zabel@...il.com>
Subject: Re: [patch 2.6.20-rc1 4/6] PXA GPIO wrappers

On Wed, 20 Dec 2006 13:12:35 -0800
David Brownell <david-b@...bell.net> wrote:

> +/* REVISIT these macros are correct, but suffer code explosion
> + * for non-constant parameters.  Provide out-line versions too.
> + */
> +#define gpio_get_value(gpio) \
> +	(GPLR(gpio) & GPIO_bit(gpio))
> +
> +#define gpio_set_value(gpio,value) \
> +	((value) ? (GPSR(gpio) = GPIO_bit(gpio)):(GPCR(gpio) = GPIO_bit(gpio)))

Why not implement them as inline functions?

Or non-inline functions, come to that.

Either way, programming in C is preferable to this ;)
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