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From: Ingo Molnar <mingo@elte.hu>
To: Jianjun Kong <jianjun@zeuux.org>
Cc: Linux-Kernel-Mailing-List <linux-kernel@vger.kernel.org>,
	mingo@redhat.com
Subject: Re: v2.6.28-rc7: Fail compile arch/x86/kernel/cpu/common.c
Date: Wed, 3 Dec 2008 12:47:48 +0100	[thread overview]
Message-ID: <20081203114748.GB19664@elte.hu> (raw)
In-Reply-To: <20081203112725.GA6822@ubuntu>


* Jianjun Kong <jianjun@zeuux.org> wrote:

> On Wed, Dec 03, 2008 at 08:35:04AM +0100, Ingo Molnar wrote:
> >* Jianjun Kong <jianjun@zeuux.org> wrote:
> >> arch/x86/kernel/cpu/common.c: In function ‘early_identify_cpu’:
> >> arch/x86/kernel/cpu/common.c:555: error: ‘boot_cpu_id’ undeclared (first
> >> use in this function)

the error message is not consistent with what the code does:

$ cat arch/x86/kernel/cpu/common.c
[...]
#include <asm/smp.h>

combined with:

> $ cat arch/x86/include/asm/smp.h
> 
> #ifndef _ASM_X86_SMP_H
> #define _ASM_X86_SMP_H

> #ifdef CONFIG_X86_HAS_BOOT_CPU_ID
> extern unsigned char boot_cpu_id;
> #else
> #define boot_cpu_id	0
> #endif
> 
> #endif /* __ASSEMBLY__ */
> #endif /* _ASM_X86_SMP_H */

how can this not build? Do you have __ASSEMBLY__ defined in your CFLAGS 
perhaps?

	Ingo

  reply	other threads:[~2008-12-03 11:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-03  7:01 Jianjun Kong
2008-12-03  7:35 ` Ingo Molnar
2008-12-03 11:27   ` Jianjun Kong
2008-12-03 11:47     ` Ingo Molnar [this message]
2008-12-03 15:22       ` Jianjun Kong

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