linux-kernel - Re: [PATCH 1/3] mtd/maps: uclinux: allow systems to override map addr/size

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Message-ID: <20090527010359.GA8979@linux-sh.org>
Date:	Wed, 27 May 2009 10:03:59 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Mike Frysinger <vapier@...too.org>
Cc:	linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	Greg Ungerer <gerg@...inux.org>, uclinux-dev@...inux.org,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH 1/3] mtd/maps: uclinux: allow systems to override map addr/size

On Tue, May 26, 2009 at 08:46:24PM -0400, Mike Frysinger wrote:
> On Tuesday 26 May 2009 19:46:16 Paul Mundt wrote:
> > On Tue, May 26, 2009 at 07:33:16PM -0400, Mike Frysinger wrote:
> > > +extern char _ebss;
> > > +
> >
> > Also, it would be nice if the remaining architectures that define _ebss
> > could shove this in their asm/sections.h so we can kill this off from the
> > driver itself.
> 
> well, everyone would still have to define the _ebss symbol otherwise they'd 
> get an undefined error due to how the map is initialized.

Yes, but that is not the issue. The issue is that the section
extern has no place in a driver, this is precisely what asm/sections.h is
for. Only microblaze and sh define it there today, and there is already
inconsistency. Having the others define it for themselves and agreeing on
a type would permit us to kill it off from the driver.
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