From 451cbaa1c328082832a8fbcc427cd4416c602c5a Mon Sep 17 00:00:00 2001
From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Date: Sun, 30 Oct 2005 15:03:49 -0800
Subject: [PATCH] fat: cleanup and optimization of checksum

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 fs/vfat/namei.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'fs/vfat')

diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index 1c6f6b57ef1c..467346b123d9 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -621,8 +621,7 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name,
 	}
 
 	/* build the entry of long file name */
-	for (cksum = i = 0; i < 11; i++)
-		cksum = (((cksum&1)<<7)|((cksum&0xfe)>>1)) + msdos_name[i];
+	cksum = fat_checksum(msdos_name);
 
 	*nr_slots = usize / 13;
 	for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
-- 
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