linux-kernel - Re: [PATCH] arch: arm64: kernel: add '#ifdef CONFIG_COMPAT' for aarch32_break

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Message-ID: <51C80F32.4060500@asianux.com>
Date:	Mon, 24 Jun 2013 17:19:46 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Will Deacon <will.deacon@....com>
CC:	Catalin Marinas <Catalin.Marinas@....com>,
	Tony Lindgren <tony@...mide.com>,
	"olof@...om.net" <olof@...om.net>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH] arch: arm64: kernel: add '#ifdef CONFIG_COMPAT' for aarch32_break_handler()

On 06/24/2013 04:47 PM, Will Deacon wrote:
> On Sat, Jun 22, 2013 at 06:54:14AM +0100, Chen Gang wrote:
>> > 
>> > If 'COMPAT' not defined, aarch32_break_handler() cannot pass compiling,
>> > so need add '#ifdef' for it just like the header file has done.
>> > 
>> > The related make:
>> > 
>> >   make ARCH=arm64 randconfig
>> >   make ARCH=arm64 menuconfig
>> >   make ARCH=arm64 V=1 EXTRA_CFLAGS=-W
>> > 
>> > The related error:
>> > 
>> >   arch/arm64/kernel/debug-monitors.c:249:5: error: redefinition of ‘aarch32_break_handler’
>> >   In file included from arch/arm64/kernel/debug-monitors.c:29:0:
>> >   /root/linux-next/arch/arm64/include/asm/debug-monitors.h:89:12: note: previous definition of ‘aarch32_break_handler’ was here
> Actually, can we just kill the static definition in debug-monitors.h
> instead? I don't see anything in the full-blown aardch32_break_handler that
> won't play nicely if !COMPAT.

It sounds good, I will send patch v2.

Thanks.
-- 
Chen Gang

Asianux Corporation
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