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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Michael Neuling <mikey@neuling.org>
Cc: David Howells <dhowells@redhat.com>,
	Grant Likely <grant.likely@secretlab.ca>,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	paul.gortmaker@windriver.com, arnd@arndb.de, hpa@zytor.com,
	sfr@canb.auug.org.au
Subject: Re: [GIT PULL] Disintegrate and kill asm/system.h
Date: Thu, 29 Mar 2012 15:14:29 +1100	[thread overview]
Message-ID: <1332994469.3010.7.camel@pasglop> (raw)
In-Reply-To: <30702.1332989444@neuling.org>

On Thu, 2012-03-29 at 13:50 +1100, Michael Neuling wrote:
> > Here are a bunch of patches to disintegrate asm/system.h into a set of separate
> > bits to relieve the problem of circular inclusion dependencies.
> > 
> > The following changes since commit 437538267b672f9320833907f1b5acbb2605f4be:
> > 
> >   Merge tag 'fbdev-updates-for-3.4' of git://github.com/schandinat/linux-2.6 (2012-03-22 20:43:40 -0700)
> > 
> > are available in the git repository at:
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system.git split-asm-system_h
> 
> It would have been nice to have this in linux-next for a day or two to
> sort out the merge issues,  hence....
> 
> This seems to have broken linus tree when compiling a pseries_defconfig

Ah yes, I also saw that, I was hoping you would give me today to run
through my test builds.

> We are currently getting:
> kernel/irq/irqdomain.c: In function 'irq_debugfs_init':
> kernel/irq/irqdomain.c:698:63: error: 'powerpc_debugfs_root' undeclared (first use in this function)
> kernel/irq/irqdomain.c:698:63: note: each undeclared identifier is reported only once for each function it appears in
> 
>   ae3a197 Disintegrate asm/system.h for PowerPC
> is conflicting with 
>   cc79ca6 irq_domain: Move irq_domain code from powerpc to kernel/irq
> from Grant's tree.
> 
> Adding the following patch fixes it for pseries_defconfig, although I'm
> not sure it's the right fix.

That will do as a quick fix (Linus, can you take it now ?), however..

> Grant: why does powerpc_debugfs_root appear in generic code?  This seems
> very bogus.

Yes, Grant, you should move that to a different (generic) debugfs file,
the mapping information is valuable debug data for all architectures
that use the remapper, not just powerpc and it's not an ABI (no tool I
know of rely on the location of that debugfs file) so feel free to move
it around.

Cheers,
Ben.

  parent reply	other threads:[~2012-03-29  4:14 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-28 18:20 [GIT PULL] Disintegrate and kill asm/system.h David Howells
2012-03-29  2:50 ` Michael Neuling
2012-03-29  2:55   ` Stephen Rothwell
2012-03-29  4:15     ` Stephen Rothwell
2012-03-29  4:21       ` Michael Neuling
2012-03-29  4:24       ` Linus Torvalds
2012-03-29  4:42         ` Stephen Rothwell
2012-03-29  4:55           ` Michael Neuling
2012-03-29  5:02           ` Linus Torvalds
2012-03-29  8:11             ` Benjamin Herrenschmidt
2012-03-29 21:14               ` Grant Likely
2012-03-29 21:14                 ` Grant Likely
2012-03-29 21:48                 ` Thomas Gleixner
2012-03-29 22:16                   ` Grant Likely
2012-03-29  4:14   ` Benjamin Herrenschmidt [this message]
2012-03-29 21:01     ` Grant Likely
2012-03-29 22:50       ` Stephen Rothwell
2012-03-29 22:52         ` Grant Likely
2012-03-29 23:38           ` Stephen Rothwell
2012-03-30  0:37             ` Grant Likely
2012-03-30  7:48     ` Paul Mundt
2012-03-30 21:46       ` Grant Likely
2012-03-30 21:46         ` Grant Likely
  -- strict thread matches above, loose matches on Subject: below --
2012-03-21 17:14 David Howells
2012-03-21 23:06 ` Paul Gortmaker

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