linux-kernel - Re: [PATCH] arm64: Add missing linux/bug.h include in asm/pgtable.h

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Message-ID: <566EF28B.7060909@arm.com>
Date:	Mon, 14 Dec 2015 16:47:07 +0000
From:	James Morse <james.morse@....com>
To:	linux-arm-kernel@...ts.infradead.org
CC:	Catalin Marinas <catalin.marinas@....com>,
	Julien Grall <julien.grall@...rix.com>,
	Will Deacon <will.deacon@....com>,
	linux-kernel@...r.kernel.org, stefano.stabellini@...citrix.com
Subject: Re: [PATCH] arm64: Add missing linux/bug.h include in asm/pgtable.h

On 14/12/15 16:38, Catalin Marinas wrote:
> On Mon, Dec 14, 2015 at 04:26:48PM +0000, Julien Grall wrote:
>> On 14/12/15 16:22, Catalin Marinas wrote:
>>> On Mon, Dec 14, 2015 at 04:07:24PM +0000, Julien Grall wrote:
>>>> Linux 4.4-rc5 doesn't build for arm64 with CONFIG_XEN=y enabled:
>>>>
>>>> In file included from linux/arch/arm64/include/asm/pgtable.h:60:0,
>>>>                  from linux/arch/arm64/include/../../arm/include/asm/xen/page.h:5,
>>>>                  from linux/arch/arm64/include/asm/xen/page.h:1,
>>>>                  from linux/include/xen/page.h:28,
>>>>                  from linux/arch/arm64/xen/../../arm/xen/grant-table.c:33:
>>>> linux/arch/arm64/include/asm/pgtable.h: In function 'set_pte_at':
>>>> linux/include/linux/mmdebug.h:49:39: error: implicit declaration of function 'BUILD_BUG_ON_INVALID' [-Werror=implicit-function-declaration]
>>>>  #define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
>>>>                                        ^
>>>> linux/arch/arm64/include/asm/pgtable.h:281:3: note: in expansion of macro 'VM_WARN_ONCE'
>>>>    VM_WARN_ONCE(!pte_young(pte),

I got bitten by this this morning, and had a patch to mmdebug.h I just
sent to the linux-mm list... sorry I should have copied everyone on this
thread (you don't get enough email already!).


Thanks,

James

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