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, 2 insertions, 1 deletions

diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index f5872ae325a3..9fdf8c93c58e 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>       /* for memset */
 #include <linux/nls.h>
+#include <linux/crc-itu-t.h>
 
 #include "udf_sb.h"
 
@@ -454,7 +455,7 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
                 } else if (newIndex > 250)
                         newIndex = 250;
                 newName[newIndex++] = CRC_MARK;
-                valueCRC = udf_crc(fidName, fidNameLen, 0);
+                valueCRC = crc_itu_t(0, fidName, fidNameLen);
                 newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
                 newName[newIndex++] = hexChar[(valueCRC & 0x0f00) >> 8];
                 newName[newIndex++] = hexChar[(valueCRC & 0x00f0) >> 4];