linux-kernel - Re: [-mm patch] kernel/kexec.c: make code static

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Date:	Mon, 10 Sep 2007 11:55:49 +0900
From:	"Ken'ichi Ohmichi" <oomichi@....nes.nec.co.jp>
To:	Adrian Bunk <bunk@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Dan Aloni <da-x@...atomic.org>, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [-mm patch] kernel/kexec.c: make code static


Hi Adrian,


2007/09/09 22:25:16 +0200, Adrian Bunk <bunk@...nel.org> wrote:
>On Fri, Aug 31, 2007 at 09:58:22PM -0700, Andrew Morton wrote:
>>...
>> Changes since 2.6.23-rc3-mm1:
>>...
>> +add-vmcoreinfo.patch
>>...
>>  misc
>>...
>
>This patch makes the following needlessly global code static:
>- vmcoreinfo_data[]
>- vmcoreinfo_size
>- vmcoreinfo_append_str()

The kernel compiling fails with your patch because architecture-specific
function should access the above data/function:

# make
[snip]
arch/ia64/kernel/machine_kexec.c: In function 'arch_crash_save_vmcoreinfo':
arch/ia64/kernel/machine_kexec.c:134: error: implicit declaration of function 'SYMBOL'
arch/ia64/kernel/machine_kexec.c:135: error: implicit declaration of function 'LENGTH'
arch/ia64/kernel/machine_kexec.c:139: error: implicit declaration of function 'SIZE'
arch/ia64/kernel/machine_kexec.c:139: error: 'node_memblk_s' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:139: error: (Each undeclared identifier is reported only once
arch/ia64/kernel/machine_kexec.c:139: error: for each function it appears in.)
arch/ia64/kernel/machine_kexec.c:140: error: implicit declaration of function 'OFFSET'
arch/ia64/kernel/machine_kexec.c:140: error: 'start_paddr' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:141: error: 'size' undeclared (first use in this function)
arch/ia64/kernel/machine_kexec.c:144: error: implicit declaration of function 'CONFIG'
arch/ia64/kernel/machine_kexec.c:144: error: 'PGTABLE_3' undeclared (first use in this function)
make[1]: *** [arch/ia64/kernel/machine_kexec.o] Error 1
make: *** [arch/ia64/kernel] Error 2
#


Thanks
Ken'ichi Ohmichi
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