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udf: use crc_itu_t from lib instead of udf_crc

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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>
This commit is contained in:
Bob Copeland 2008-04-17 09:47:48 +02:00 • committed by Jan Kara
parent 706047a797
commit f845fced91
9 changed files with 32 additions and 203 deletions
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3
fs/udf/unicode.c
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@ -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];