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crypto: compress_null - drop obsolete 'comp' implementation

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The 'comp' API is obsolete and will be removed, so remove this comp
implementation.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2025-03-16 09:21:24 +08:00 committed by Herbert Xu
parent bd40bf1ad2
commit be457e4e8d
2 changed files with 5 additions and 29 deletions
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31
crypto/crypto_null.c
View File

@ -24,16 +24,6 @@ static DEFINE_SPINLOCK(crypto_default_null_skcipher_lock);
static struct crypto_sync_skcipher *crypto_default_null_skcipher;
static int crypto_default_null_skcipher_refcnt;
static int null_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
if (slen > *dlen)
return -EINVAL;
memcpy(dst, src, slen);
*dlen = slen;
return 0;
}
static int null_init(struct shash_desc *desc)
{
return 0;
@ -121,7 +111,7 @@ static struct skcipher_alg skcipher_null = {
.decrypt = null_skcipher_crypt,
};
static struct crypto_alg null_algs[] = { {
static struct crypto_alg cipher_null = {
.cra_name = "cipher_null",
.cra_driver_name = "cipher_null-generic",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
@ -134,19 +124,8 @@ static struct crypto_alg null_algs[] = { {
.cia_setkey = null_setkey,
.cia_encrypt = null_crypt,
.cia_decrypt = null_crypt } }
}, {
.cra_name = "compress_null",
.cra_driver_name = "compress_null-generic",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
.cra_blocksize = NULL_BLOCK_SIZE,
.cra_ctxsize = 0,
.cra_module = THIS_MODULE,
.cra_u = { .compress = {
.coa_compress = null_compress,
.coa_decompress = null_compress } }
} };
};
MODULE_ALIAS_CRYPTO("compress_null");
MODULE_ALIAS_CRYPTO("digest_null");
MODULE_ALIAS_CRYPTO("cipher_null");
@ -202,7 +181,7 @@ static int __init crypto_null_mod_init(void)
{
int ret = 0;
ret = crypto_register_algs(null_algs, ARRAY_SIZE(null_algs));
ret = crypto_register_alg(&cipher_null);
if (ret < 0)
goto out;
@ -219,14 +198,14 @@ static int __init crypto_null_mod_init(void)
out_unregister_shash:
crypto_unregister_shash(&digest_null);
out_unregister_algs:
crypto_unregister_algs(null_algs, ARRAY_SIZE(null_algs));
crypto_unregister_alg(&cipher_null);
out:
return ret;
}
static void __exit crypto_null_mod_fini(void)
{
crypto_unregister_algs(null_algs, ARRAY_SIZE(null_algs));
crypto_unregister_alg(&cipher_null);
crypto_unregister_shash(&digest_null);
crypto_unregister_skcipher(&skcipher_null);
}

3
crypto/testmgr.c
View File

@ -4726,9 +4726,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.suite = {
.hash = __VECS(sm4_cmac128_tv_template)
}
}, {
.alg = "compress_null",
.test = alg_test_null,
}, {
.alg = "crc32",
.test = alg_test_hash,