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From: Stephen Rothwell <sfr@canb•auug.org.au>
To: FUJITA Tomonori <fujita.tomonori@lab•ntt.co.jp>
Cc: mingo@elte•hu, joerg.roedel@amd•com, mingo@redhat•com,
	tglx@linutronix•de, linux-kernel@vger•kernel.org,
	iommu@lists•linux-foundation.org, bhavna.sarathy@amd•com,
	robert.richter@amd•com, Linus <torvalds@linux-foundation•org>,
	Andrew Morton <akpm@linux-foundation•org>,
	Jesse Barnes <jbarnes@virtuousgeek•org>,
	linux-next@vger•kernel.org
Subject: Re: [PATCH] add iommu_num_pages helper function
Date: Tue, 29 Jul 2008 13:56:52 +1000	[thread overview]
Message-ID: <20080729135652.f89042c1.sfr@canb.auug.org.au> (raw)
In-Reply-To: <20080729104722H.fujita.tomonori@lab.ntt.co.jp>

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Hi, 

On Tue, 29 Jul 2008 10:46:31 +0900 FUJITA Tomonori <fujita.tomonori@lab•ntt.co.jp> wrote:
>
> > So, I assume a patch created on July 25 is not destined for 2.6.27,
> 
> Hmm, seems that they will go into 2.6.27:
> 
> http://marc.info/?l=linux-kernel&m=121729275722287&w=2
> 
> 
> > right?  Especially since it breaks another architecture build and has
> > only made it to linux-next on July 29 ... and needs more work given the
> > comments already on this patch.
> 
> It doesn't break another architecture build since only x86 IOMMUs use
> the helper function. But as I pointed out, it doesn't work for some
> architectures.

Um, did you see the linux-next build report I posted (possibly not):

arch/powerpc/kernel/iommu.c:56: error: static declaration of 'iommu_num_pages' follows non-static declaration
include/linux/iommu-helper.h:11: error: previous declaration of 'iommu_num_pages' was here

This is now a build of 2.6.27-rc1 for powerpc64 ppc64_defconfig ...

So we have a patch first posted to lkml on July 25 first hits linux-next
on July 29 and is no in Linus' tree on July 29.  A grep would have found
the problem.

More care required ...

-- 
Cheers,
Stephen Rothwell                    sfr@canb•auug.org.au
http://www.canb.auug.org.au/~sfr/

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       reply	other threads:[~2008-07-29  3:57 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20080725233325W.fujita.tomonori@lab.ntt.co.jp>
     [not found] ` <20080726134156.GC4401@elte.hu>
     [not found]   ` <20080729110749.728c54e6.sfr@canb.auug.org.au>
     [not found]     ` <20080729104722H.fujita.tomonori@lab.ntt.co.jp>
2008-07-29  3:56       ` Stephen Rothwell [this message]
2008-07-29  4:38         ` [PATCH] add iommu_num_pages helper function FUJITA Tomonori
2008-07-29  5:26           ` David Miller
2008-07-29  5:42             ` FUJITA Tomonori
2008-07-29  5:24         ` David Miller
2008-07-29  5:42           ` FUJITA Tomonori
2008-07-29  6:45           ` Stephen Rothwell
2008-07-29  9:50             ` Joerg Roedel
2008-07-29  9:58               ` FUJITA Tomonori
2008-07-29 10:02                 ` Joerg Roedel
2008-07-30 22:44                   ` Benjamin Herrenschmidt
2008-07-31  2:07                     ` FUJITA Tomonori
2008-07-29 10:10               ` David Miller
2008-07-29 10:26                 ` Joerg Roedel
2008-07-29 10:27                 ` FUJITA Tomonori
2008-07-29 10:31                   ` Ingo Molnar
2008-07-29 10:33                     ` David Miller
2008-07-29 12:45                       ` Stephen Rothwell
2008-07-30 12:18                 ` Joerg Roedel
2008-07-30 13:16                   ` FUJITA Tomonori
2008-07-30 14:03                     ` Joerg Roedel
2008-07-30 18:52                     ` Joerg Roedel
2008-07-30 22:44                 ` Benjamin Herrenschmidt

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