linux-kernel - Re: [patch 11/23] Fix m32r _

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Message-ID: <20070818204034.GC32595@stusta.de>
Date:	Sat, 18 Aug 2007 22:40:34 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Christoph Lameter <clameter@....com>, takata@...ux-m32r.org,
	linux-m32r@...linux-m32r.org
Subject: Re: [patch 11/23] Fix m32r __xchg

On Sun, Aug 12, 2007 at 10:54:45AM -0400, Mathieu Desnoyers wrote:
> the #endif  /* CONFIG_SMP */ should cover the default condition, or it may cause
> bad parameter to be silently missed.
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
> CC: takata@...ux-m32r.org
> CC: linux-m32r@...linux-m32r.org
> ---
>  include/asm-m32r/system.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux-2.6-lttng/include/asm-m32r/system.h
> ===================================================================
> --- linux-2.6-lttng.orig/include/asm-m32r/system.h	2007-08-07 14:55:02.000000000 -0400
> +++ linux-2.6-lttng/include/asm-m32r/system.h	2007-08-07 14:57:57.000000000 -0400
> @@ -189,9 +189,9 @@ __xchg(unsigned long x, volatile void * 
>  #endif	/* CONFIG_CHIP_M32700_TS1 */
>  		);
>  		break;
> +#endif  /* CONFIG_SMP */
>  	default:
>  		__xchg_called_with_bad_pointer();
> -#endif  /* CONFIG_SMP */
>  	}
>  
>  	local_irq_restore(flags);


It seems you never checked whether your patch compiles:

<--  snip  -->

...
  CC      init/main.o
In file included from include2/asm/bitops.h:16,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/include/linux/bitops.h:9,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/include/linux/kernel.h:15,
                 from include2/asm/processor.h:16,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/include/linux/prefetch.h:14,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/include/linux/list.h:8,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/include/linux/module.h:9,
                 from /home/bunk/linux/kernel-2.6/linux-2.6.23-rc2-mm2/init/main.c:13:
include2/asm/system.h: In function '__xchg':
include2/asm/system.h:191: error: implicit declaration of function '__xchg_called_with_bad_pointer'
make[2]: *** [init/main.o] Error 1

<--  snip  -->


cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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