linux-kernel - Re: next-20150716 build: 4 failures 88 warnings (next-20150716)

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Message-ID: <20150716134836.GB26865@e104818-lin.cambridge.arm.com>
Date:	Thu, 16 Jul 2015 14:48:36 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Toshi Kani <toshi.kani@...com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Will Deacon <Will.Deacon@....com>,
	"kernel-build-reports@...ts.linaro.org" 
	<kernel-build-reports@...ts.linaro.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: next-20150716 build: 4 failures 88 warnings (next-20150716)

On Thu, Jul 16, 2015 at 02:41:52PM +0100, Mark Brown wrote:
> On Thu, Jul 16, 2015 at 11:05:11AM +0100, Build bot for Mark Brown wrote:
> 
> Today's linux-next fails to build an arm64 allnoconfig due to "mm: make
> GUP handle pfn mapping unless FOLL_GET is requested" which causes:
> 
> > 	arm64-allnoconfig
> > ../mm/gup.c:51:4: error: implicit declaration of function 'update_mmu_cache' [-Werror=implicit-function-declaration]
> 
> The update_mmu_cache() function is defined unconditionally in
> asm/tlbflush.h so there is presumably some path of conditional
> inclusions which causes it not to get declared in an allnoconfig - I
> didn't chase that down yet.

Maybe we should move it to asm/pgtable.h like many other architectures.

-- 
Catalin

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