linux-kernel - Re: linux-next: build failure after merge of the final tree (acpi tree related)

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Message-ID: <51197D8B.6010407@kernel.org>
Date:	Mon, 11 Feb 2013 18:23:55 -0500
From:	Len Brown <lenb@...nel.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Len Brown <len.brown@...el.com>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>, sparclinux@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (acpi
 tree related)

On 02/11/2013 02:34 AM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the final tree, today's linux-next build (sparc64 defconfig)
> failed like this:
> 
> arch/sparc/include/asm/processor.h: Assembler messages:
> arch/sparc/include/asm/processor.h:10: Error: Unknown opcode: `extern'
> 
> Caused by commit 3a242f58a5f4 ("sparc idle: rename pm_idle to
> sparc_idle") from the acpi tree.
> 
> I have applied this patch for today:
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Mon, 11 Feb 2013 18:30:19 +1100
> Subject: [PATCH] sparc idle: protect variable declarations against the assembler
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  arch/sparc/include/asm/processor.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/sparc/include/asm/processor.h b/arch/sparc/include/asm/processor.h
> index 34baa35..622cfa5 100644
> --- a/arch/sparc/include/asm/processor.h
> +++ b/arch/sparc/include/asm/processor.h
> @@ -7,6 +7,8 @@
>  #endif
>  
>  #define nop() 		__asm__ __volatile__ ("nop")
> +#ifndef __ASSEMBLY__
>  extern void (*sparc_idle)(void);
> +#endif
>  
>  #endif
> 

Thank you Stephen!

The last time I compiled a sparc kernel was in 1993:-)

I've added your fix and Dave's Ack to this patch,
and updated it in my next branch.

Len Brown, Intel Open Source Technology Center


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