linux-kernel - Re: [PATCH 4/6] regulator: regulator core.

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Message-ID: <20080223095217.GA28356@flint.arm.linux.org.uk>
Date:	Sat, 23 Feb 2008 09:52:17 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Liam Girdwood <lg@...nsource.wolfsonmicro.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>
Subject: Re: [PATCH 4/6] regulator: regulator core.

On Sat, Feb 23, 2008 at 12:05:38AM -0800, Andrew Morton wrote:
> On Wed, 20 Feb 2008 17:09:11 +0000 Liam Girdwood <lg@...nsource.wolfsonmicro.com> wrote:
> 
> > This patch provides the regulator framework core. The core also provides a
> > sysfs interface for userspace information.
> > 
> > ...
> >
> > +
> > +/* We need to undef the current macro (from include/asm/current.h) otherwise
> > + * our "current" sysfs entry becomes "(get_current())".
> > + */
> > +#undef current
> 
> err, no ;)  Please rename your stuff.

Renaming is not an option - "current" is an electronic term for which
there is no alternative.  The real problem is this __ATTR macro crap:

+       __ATTR(current, 0444, regulator_uA_show, NULL),

#define __ATTR(_name,_mode,_show,_store) { \
	.attr = {.name = __stringify(_name), .mode = _mode },	\
	.show	= _show,					\
	.store	= _store,					\
}

If __ATTR allowed the name to be passed as a string, instead of stupidly
stringifying it, then this wouldn't be needed.  So I suggest that the
#undef stands _until_ we fix this stupid macro.  Or we rename the
"current" macro to something that doesn't clash with accepted scientific
and engineering terminology.
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