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Message-ID: <48B92D7A.7020701@ru.mvista.com>
Date:	Sat, 30 Aug 2008 15:22:34 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	Elias Oltmanns <eo@...ensachen.de>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ide: Build fix for CONFIG_IDE_PROC_FS=n

Hello, I have just written:
>> Recent changes have broken compilation when CONFIG_IDE_PROC_FS is not 
>> set.
>>
>> Signed-off-by: Elias Oltmanns <eo@...ensachen.de>
>>   
> [...]
>> diff --git a/drivers/ide/ide-disk.h b/drivers/ide/ide-disk.h
>> index f937772..5254cae 100644
>> --- a/drivers/ide/ide-disk.h
>> +++ b/drivers/ide/ide-disk.h
>> @@ -23,8 +23,10 @@ ide_decl_devset(acoustic);
>>  /* ide-disk_ioctl.c */
>>  int ide_disk_ioctl(struct inode *, struct file *, unsigned int, 
>> unsigned long);
>>  
>> +#ifdef CONFIG_IDE_PROC_FS
>>  /* ide-disk_proc.c */
>>  extern ide_proc_entry_t ide_disk_proc[];
>>  extern const struct ide_proc_devset ide_disk_settings[];
>> +#endif /* CONFIG_IDE_PROC_FS */
>>  
>>  #endif /* __IDE_DISK_H */
>> diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h
>> index 2ad373e..86ee37e 100644
>> --- a/drivers/ide/ide-floppy.h
>> +++ b/drivers/ide/ide-floppy.h
>> @@ -53,8 +53,10 @@ sector_t ide_floppy_capacity(ide_drive_t *);
>>  /* ide-floppy_ioctl.c */
>>  int ide_floppy_ioctl(struct inode *, struct file *, unsigned, 
>> unsigned long);
>>  
>> +#ifdef CONFIG_IDE_PROC_FS
>>  /* ide-floppy_proc.c */
>>  extern ide_proc_entry_t ide_floppy_proc[];
>>  extern const struct ide_proc_devset ide_floppy_settings[];
>> +#endif /* CONFIG_IDE_PROC_FS */
>>   
>
>   Is surrounding 'extern' declarations by #ifdef's really of any value?
>   They shouldn't be used if CONFIG_IDE_PROC_FS=n, so no object file 
> records should be generated.

   Ah, you probably mean to turn the possible link time errors if the do 
get referenced into the compile time errors...

MBR, Sergei


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