udf: use crc_itu_t from lib instead of udf_crc

As pointed out by Sergey Vlasov, UDF implements its own version of
the CRC ITU-T V.41.  Convert it to use the one in the library.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Cc: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 6823733c0121..b564fc140fe4 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -56,6 +56,7 @@
 #include <linux/mount.h>
 #include <linux/seq_file.h>
 #include <linux/bitmap.h>
+#include <linux/crc-itu-t.h>
 #include <asm/byteorder.h>
 
 #include "udf_sb.h"
@@ -1765,8 +1766,8 @@ static void udf_open_lvid(struct super_block *sb)
         lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
 
         lvid->descTag.descCRC = cpu_to_le16(
-                udf_crc((char *)lvid + sizeof(tag),
-                        le16_to_cpu(lvid->descTag.descCRCLength), 0));
+                crc_itu_t(0, (char *)lvid + sizeof(tag),
+                        le16_to_cpu(lvid->descTag.descCRCLength)));
 
         lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
         mark_buffer_dirty(bh);
@@ -1800,9 +1801,8 @@ static void udf_close_lvid(struct super_block *sb)
         lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
 
         lvid->descTag.descCRC = cpu_to_le16(
-                udf_crc((char *)lvid + sizeof(tag),
-                        le16_to_cpu(lvid->descTag.descCRCLength),
-                        0));
+                        crc_itu_t(0, (char *)lvid + sizeof(tag),
+                                le16_to_cpu(lvid->descTag.descCRCLength)));
 
         lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
         mark_buffer_dirty(bh);