crypto: crc32 - remove "generic" from file and module names

Since crc32_generic.c and crc32c_generic.c now expose both the generic
and architecture-optimized implementations via the crypto_shash API,
rather than just the generic implementations as they originally did,
remove the "generic" part of the filenames and module names:

    crypto/crc32-generic.c => crypto/crc32.c
    crypto/crc32c-generic.c => crypto/crc32c.c
    crc32-generic.ko => crc32-cryptoapi.ko
    crc32c-generic.ko => crc32c-cryptoapi.ko

The reason for adding the -cryptoapi suffixes to the module names is to
avoid a module name collision with crc32.ko which is the library API.

We could instead rename the library module to libcrc32.ko.  However,
while lib/crypto/ uses that convention, the rest of lib/ doesn't.  Since
the library API is the primary API for CRC-32, I'd like to keep the
unsuffixed name for it and make the Crypto API modules use a suffix.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250428162458.29732-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>

1 files changed, 0 insertions, 182 deletions

diff --git a/crypto/crc32_generic.c b/crypto/crc32_generic.c
deleted file mode 100644
index 783a30b27398..000000000000
--- a/crypto/crc32_generic.c
+++ /dev/null
@@ -1,182 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2012 Xyratex Technology Limited
- */
-
-/*
- * This is crypto api shash wrappers to crc32_le.
- */
-
-#include <linux/unaligned.h>
-#include <linux/crc32.h>
-#include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#define CHKSUM_BLOCK_SIZE	1
-#define CHKSUM_DIGEST_SIZE	4
-
-/** No default init with ~0 */
-static int crc32_cra_init(struct crypto_tfm *tfm)
-{
-	u32 *key = crypto_tfm_ctx(tfm);
-
-	*key = 0;
-
-	return 0;
-}
-
-/*
- * Setting the seed allows arbitrary accumulators and flexible XOR policy
- * If your algorithm starts with ~0, then XOR with ~0 before you set
- * the seed.
- */
-static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
-			unsigned int keylen)
-{
-	u32 *mctx = crypto_shash_ctx(hash);
-
-	if (keylen != sizeof(u32))
-		return -EINVAL;
-	*mctx = get_unaligned_le32(key);
-	return 0;
-}
-
-static int crc32_init(struct shash_desc *desc)
-{
-	u32 *mctx = crypto_shash_ctx(desc->tfm);
-	u32 *crcp = shash_desc_ctx(desc);
-
-	*crcp = *mctx;
-
-	return 0;
-}
-
-static int crc32_update(struct shash_desc *desc, const u8 *data,
-			unsigned int len)
-{
-	u32 *crcp = shash_desc_ctx(desc);
-
-	*crcp = crc32_le_base(*crcp, data, len);
-	return 0;
-}
-
-static int crc32_update_arch(struct shash_desc *desc, const u8 *data,
-			     unsigned int len)
-{
-	u32 *crcp = shash_desc_ctx(desc);
-
-	*crcp = crc32_le(*crcp, data, len);
-	return 0;
-}
-
-/* No final XOR 0xFFFFFFFF, like crc32_le */
-static int __crc32_finup(u32 *crcp, const u8 *data, unsigned int len,
-			 u8 *out)
-{
-	put_unaligned_le32(crc32_le_base(*crcp, data, len), out);
-	return 0;
-}
-
-static int __crc32_finup_arch(u32 *crcp, const u8 *data, unsigned int len,
-			      u8 *out)
-{
-	put_unaligned_le32(crc32_le(*crcp, data, len), out);
-	return 0;
-}
-
-static int crc32_finup(struct shash_desc *desc, const u8 *data,
-		       unsigned int len, u8 *out)
-{
-	return __crc32_finup(shash_desc_ctx(desc), data, len, out);
-}
-
-static int crc32_finup_arch(struct shash_desc *desc, const u8 *data,
-		       unsigned int len, u8 *out)
-{
-	return __crc32_finup_arch(shash_desc_ctx(desc), data, len, out);
-}
-
-static int crc32_final(struct shash_desc *desc, u8 *out)
-{
-	u32 *crcp = shash_desc_ctx(desc);
-
-	put_unaligned_le32(*crcp, out);
-	return 0;
-}
-
-static int crc32_digest(struct shash_desc *desc, const u8 *data,
-			unsigned int len, u8 *out)
-{
-	return __crc32_finup(crypto_shash_ctx(desc->tfm), data, len, out);
-}
-
-static int crc32_digest_arch(struct shash_desc *desc, const u8 *data,
-			     unsigned int len, u8 *out)
-{
-	return __crc32_finup_arch(crypto_shash_ctx(desc->tfm), data, len, out);
-}
-
-static struct shash_alg algs[] = {{
-	.setkey			= crc32_setkey,
-	.init			= crc32_init,
-	.update			= crc32_update,
-	.final			= crc32_final,
-	.finup			= crc32_finup,
-	.digest			= crc32_digest,
-	.descsize		= sizeof(u32),
-	.digestsize		= CHKSUM_DIGEST_SIZE,
-
-	.base.cra_name		= "crc32",
-	.base.cra_driver_name	= "crc32-generic",
-	.base.cra_priority	= 100,
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_blocksize	= CHKSUM_BLOCK_SIZE,
-	.base.cra_ctxsize	= sizeof(u32),
-	.base.cra_module	= THIS_MODULE,
-	.base.cra_init		= crc32_cra_init,
-}, {
-	.setkey			= crc32_setkey,
-	.init			= crc32_init,
-	.update			= crc32_update_arch,
-	.final			= crc32_final,
-	.finup			= crc32_finup_arch,
-	.digest			= crc32_digest_arch,
-	.descsize		= sizeof(u32),
-	.digestsize		= CHKSUM_DIGEST_SIZE,
-
-	.base.cra_name		= "crc32",
-	.base.cra_driver_name	= "crc32-" __stringify(ARCH),
-	.base.cra_priority	= 150,
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_blocksize	= CHKSUM_BLOCK_SIZE,
-	.base.cra_ctxsize	= sizeof(u32),
-	.base.cra_module	= THIS_MODULE,
-	.base.cra_init		= crc32_cra_init,
-}};
-
-static int num_algs;
-
-static int __init crc32_mod_init(void)
-{
-	/* register the arch flavor only if it differs from the generic one */
-	num_algs = 1 + ((crc32_optimizations() & CRC32_LE_OPTIMIZATION) != 0);
-
-	return crypto_register_shashes(algs, num_algs);
-}
-
-static void __exit crc32_mod_fini(void)
-{
-	crypto_unregister_shashes(algs, num_algs);
-}
-
-subsys_initcall(crc32_mod_init);
-module_exit(crc32_mod_fini);
-
-MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
-MODULE_DESCRIPTION("CRC32 calculations wrapper for lib/crc32");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CRYPTO("crc32");
-MODULE_ALIAS_CRYPTO("crc32-generic");