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

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Date:	Thu, 26 Mar 2009 00:58:06 +0800
From:	Coly Li <coly.li@...e.de>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: [PATCH] reiserfs: select CRC32 and BITREVERSE for REISERFS_FS Kconfig
 entry

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>
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.
-- 
Coly Li
SuSE Labs
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