linux-kernel - Re: compile error if CONFIG_BLOCK not enabled related to linux/ide.h include

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Message-Id: <162F0B67-44AB-4955-873A-150224C128CB@kernel.crashing.org>
Date:	Wed, 18 Jul 2007 09:12:02 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	linux-ide@...r.kernel.org
Subject: Re: compile error if CONFIG_BLOCK not enabled related to linux/ide.h include


On Jul 18, 2007, at 5:47 AM, Bartlomiej Zolnierkiewicz wrote:

>
> Hi,
>
> On Wednesday 18 July 2007, Kumar Gala wrote:
>> M:      bzolnier@...il.com
>> L:      linux-ide@...r.kernel.org
>>
>> We get the following compile error if CONFIG_BLOCK isn't enabled:
>>
>>   CC      arch/powerpc/kernel/setup_32.o
>> In file included from arch/powerpc/kernel/setup_32.c:14:
>> include/linux/ide.h:558: error: expected specifier-qualifier-list  
>> before 'request_queue_t'
>> include/linux/ide.h:696: warning: 'struct request' declared inside  
>> parameter list
>> include/linux/ide.h:696: warning: its scope is only this  
>> definition or declaration, which is probably not what you want
>> include/linux/ide.h:820: warning: 'struct request' declared inside  
>> parameter list
>> include/linux/ide.h:853: error: field 'wrq' has incomplete type
>> include/linux/ide.h:1205: error: expected ')' before '*' token
>> make[1]: *** [arch/powerpc/kernel/setup_32.o] Error 1
>> make: *** [arch/powerpc/kernel] Error 2
>
> include/linux/ide.h is exclusively for IDE subsystem
>
>> What I'm trying to figure out is if include/linux/ide.h should be  
>> wrapped
>> in a #if defined(CONFIG_IDE) || defined(CONFIG_IDE_MODULE) or if  
>> there is
>> some other desired way to handle this.
>
> Plese remove <linux/ide.h> include, there doesn't seem to be any  
> piece of
> code in arch/powerpc/kernel/setup_32.c which needs it anyway.

Its needed for:

struct ide_machdep_calls ppc_ide_md;

which gets defined in asm/ide.h which needs linux/ide.h for the defn  
of ide_init_hwif.

- k



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