linux-kernel - Re: [PATCH] reiserfs: select CRC32 and BITREVERSE for REISERFS

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Date:	Wed, 25 Mar 2009 10:07:10 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	coly.li@...e.de
CC:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] reiserfs: select CRC32 and BITREVERSE for REISERFS_FS
 Kconfig entry

Coly Li wrote:
> In patch fs-reiserfs-return-f_fsid-for-statfs2-v2.patch (from mmotm), crc32_le()
> is referenced. If reiserfs is compiled into kernel and crc32_le() is compiled as
> kernel module, there might be a compiling error as:
>     fs/built-in.o: In function `reiserfs_statfs':
>     super.c:(.text+0x7332b): undefined reference to `crc32_le'
>     super.c:(.text+0x7333f): undefined reference to `crc32_le'
> This patch select CRC32 and BITREVERSE for REISERFS_FS Kconfig entry, which
> indicates compiling crc32_le() into kernel.
> 
> Thanks to Randy Dunlap for pointing out this error and providing helpful solution.
> 
> Signed-off-by: Coly Li <coly.li@...e.de>
> Cc: Randy Dunlap <randy.dunlap@...cle.com>

Acked-by: Randy Dunlap <randy.dunlap@...cle.com>
Tested-by: Randy Dunlap <randy.dunlap@...cle.com>

Thanks.

> Cc: Andrew Morton <akpm@...ux-foundation.org>
> ---
>  fs/reiserfs/Kconfig |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/fs/reiserfs/Kconfig b/fs/reiserfs/Kconfig
> index 949b8c6..9712bea 100644
> --- a/fs/reiserfs/Kconfig
> +++ b/fs/reiserfs/Kconfig
> @@ -1,5 +1,7 @@
>  config REISERFS_FS
>  	tristate "Reiserfs support"
> +	select CRC32
> +	select BITREVERSE
>  	help
>  	  Stores not just filenames but the files themselves in a balanced
>  	  tree.  Uses journalling.


-- 
~Randy
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