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-rw-r--r--lib/libcrc32c.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/lib/libcrc32c.c b/lib/libcrc32c.c
deleted file mode 100644
index 244f5480c898..000000000000
--- a/lib/libcrc32c.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * CRC32C
- *@Article{castagnoli-crc,
- * author = { Guy Castagnoli and Stefan Braeuer and Martin Herrman},
- * title = {{Optimization of Cyclic Redundancy-Check Codes with 24
- * and 32 Parity Bits}},
- * journal = IEEE Transactions on Communication,
- * year = {1993},
- * volume = {41},
- * number = {6},
- * pages = {},
- * month = {June},
- *}
- * Used by the iSCSI driver, possibly others, and derived from the
- * the iscsi-crc.c module of the linux-iscsi driver at
- * http://linux-iscsi.sourceforge.net.
- *
- * Following the example of lib/crc32, this function is intended to be
- * flexible and useful for all users. Modules that currently have their
- * own crc32c, but hopefully may be able to use this one are:
- * net/sctp (please add all your doco to here if you change to
- * use this one!)
- * <endoflist>
- *
- * Copyright (c) 2004 Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/hash.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-static struct crypto_shash *tfm;
-
-u32 crc32c(u32 crc, const void *address, unsigned int length)
-{
- struct {
- struct shash_desc shash;
- char ctx[crypto_shash_descsize(tfm)];
- } desc;
- int err;
-
- desc.shash.tfm = tfm;
- desc.shash.flags = 0;
- *(u32 *)desc.ctx = crc;
-
- err = crypto_shash_update(&desc.shash, address, length);
- BUG_ON(err);
-
- return *(u32 *)desc.ctx;
-}
-
-EXPORT_SYMBOL(crc32c);
-
-static int __init libcrc32c_mod_init(void)
-{
- tfm = crypto_alloc_shash("crc32c", 0, 0);
- if (IS_ERR(tfm))
- return PTR_ERR(tfm);
-
- return 0;
-}
-
-static void __exit libcrc32c_mod_fini(void)
-{
- crypto_free_shash(tfm);
-}
-
-module_init(libcrc32c_mod_init);
-module_exit(libcrc32c_mod_fini);
-
-MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
-MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations");
-MODULE_LICENSE("GPL");