linux-kernel - Re: [PATCH 2/2] x86 platform driver: intelligent power sharing driver

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Date:	Tue, 11 May 2010 11:38:36 -0400
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: [PATCH 2/2] x86 platform driver: intelligent power sharing
 driver

On Tue, 11 May 2010 11:18:54 -0700 Jesse Barnes <jbarnes@...tuousgeek.org> wrote:

> > > > +#define thm_writeb(off, val) writeb((val), ips->regmap + (off))
> > > > +#define thm_writew(off, val) writew((val), ips->regmap + (off))
> > > > +#define thm_writel(off, val) writel((val), ips->regmap + (off))
> > > 
> > > ick.
> > > 
> > > static inline unsigned short thm_readw(struct ips_driver *ips, unsigned offset)
> > > {
> > > 	readw(ips->regmap + offset);
> > > }
> > > 
> > > would be nicer.
> > 
> > Yes, it would.
> 
> No, I take that back, it just means more typing.  This idiom of
> expecting a given variable to be declared for the IO routines to work
> is pretty common in drivers,

yeah, but it sucks there, too.

> and saves a bunch of redundant "(ips," everywhere...

It's not redundant - it's C.

grr.
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