linux-kernel - Re: [PATCH] arm64: fix !CONFIG

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Date:	Mon, 7 Apr 2014 10:04:28 +0200
From:	Jean Pihet <jean.pihet@...aro.org>
To:	Catalin Marinas <catalin.marinas@....com>,
	Mark Salter <msalter@...hat.com>
Cc:	Will Deacon <Will.Deacon@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: fix !CONFIG_COMPAT build failures

On 7 April 2014 00:27, Catalin Marinas <catalin.marinas@....com> wrote:
> On Sat, Apr 05, 2014 at 03:25:49PM +0100, Mark Salter wrote:
>> Recent arm64 builds using CONFIG_ARM64_64K_PAGES are failing with:
>>
>>   arch/arm64/kernel/perf_regs.c: In function 'perf_reg_abi':
>>   arch/arm64/kernel/perf_regs.c:41:2: error: implicit declaration of function 'is_compat_thread'
>>
>>   arch/arm64/kernel/perf_event.c:1398:2: error: unknown type name 'compat_uptr_t'
>>
>> This is due to some recent arm64 perf commits with compat support:
>>
>>   commit 23c7d70d55c6d9:
>>     ARM64: perf: add support for frame pointer unwinding in compat mode
>>
>>   commit 2ee0d7fd36a3f8:
>>     ARM64: perf: add support for perf registers API
>>
>> Those patches make the arm64 kernel unbuildable if CONFIG_COMPAT is not
>> defined and CONFIG_ARM64_64K_PAGES depends on !CONFIG_COMPAT. This patch
>> allows the arm64 kernel to build with and without CONFIG_COMPAT.
>>
>> Signed-off-by: Mark Salter <msalter@...hat.com>
>
> Thanks. Applied.
Thanks for tracking the problem!

Jean
>
> --
> Catalin
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