linux-kernel - Re: linux-next: build failure after merge of the final tree (tip/s390 trees related)

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Message-ID: <20121018182953.GA20658@gmail.com>
Date:	Thu, 18 Oct 2012 20:29:53 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: linux-next: build failure after merge of the final tree
 (tip/s390 trees related)


* Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> Hi all,
> 
> After merging the final tree, today's linux-next build (s390 allyesconfig)
> failed like this:
> 
> mm/huge_memory.c:1424:2: error: implicit declaration of function 'pmd_pgprot' [-Werror=implicit-function-declaration]
> mm/huge_memory.c:1424:7: error: incompatible types when assigning to type 'pgprot_t' from type 'int'
> 
> (see http://kisskb.ellerman.id.au/kisskb/buildresult/7383823/)
> 
> Caused by commit 35d3d3427314 ("s390/thp: select
> HAVE_ARCH_TRANSPARENT_HUGEPAGE") from the s390 tree interacting with
> commit 93c9d633bd9e ("mm/thp: Preserve pgprot across huge page split")
> from the tip tree.
> 
> N.B. Mips also selects HAVE_ARCH_TRANSPARENT_HUGEPAGE as of commit
> e21a828a1bba ("MIPS: Transparent Huge Pages support") from the mips tree
> and so will be broken in some configs now as well.
> 
> Anyone have suggested merge fix patches I can apply?

Resolved it for now by excluding those changes, will put them 
back in once they are fixed.

Thanks,

	Ingo

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