linux-kernel - Re: blackfin compile error

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Message-Id: <200802071632.25193.rgetz@blackfin.uclinux.org>
Date:	Thu, 7 Feb 2008 16:32:24 -0500
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	mpm@...enic.com, bunk@...nel.org, bryan.wu@...log.com,
	linux-kernel@...r.kernel.org, dhowells@...hat.com
Subject: Re: blackfin compile error

On Wed 6 Feb 2008 14:37, Andrew Morton pondered:
> On Wed, 6 Feb 2008 14:12:50 -0500
> Robin Getz <rgetz@...ckfin.uclinux.org> wrote:
> 
> > On Wed 6 Feb 2008 11:23, Matt Mackall pondered:
> > > 
> > > On Wed, 2008-02-06 at 17:18 +0200, Adrian Bunk wrote:
> > > > Commit 698dd4ba6b12e34e1e432c944c01478c0b2cd773 broke blackfin:
> > > > 
> > > > <--  snip  -->
> > > > 
> > > > ...
> > > >   CC      mm/vmscan.o
> > > > In file included from 
> > > > /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/vmscan.c:44:
> > > > /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h: In function 'is_swap_pte':
> > > > /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h:48: error: implicit declaration of function 'pte_none'
> > > > /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/swapops.h:48: error: implicit declaration of function 'pte_present'
> > > > make[2]: *** [mm/vmscan.o] Error 1
> > > 
> > > This suggests that no one's tried to compile -mm on Blackfin since
> > > before September, I think.
> > 
> > Or any other nommu arch's either, since looking at the include files,
> > FRV (when configured as noMMU) and m68knommu does not include it either...
> 
> sh is the only nommu arch which I test-compile for.
> 
> The world would be a better place if arch maintainers (or their helpers)
> were to build and test -mm once a month or so.

OK - now that we have that fixed (Mike/Bryan will do this on the mm tree and
at least fix up compile issues as soon as we notice) - how do we want to fix
this specific issue?

Add the missing entries into include/asm-xxxxx/pgtable.h or wrap the callers
in ifdefs?

-Robin

-Robin
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