linux-stable/crypto/compress.c
Eric Biggers c441a909c6 crypto: compress - remove crt_u.compress (struct compress_tfm)
crt_u.compress (struct compress_tfm) is pointless because its two
fields, ->cot_compress() and ->cot_decompress(), always point to
crypto_compress() and crypto_decompress().

Remove this pointless indirection, and just make crypto_comp_compress()
and crypto_comp_decompress() be direct calls to what used to be
crypto_compress() and crypto_decompress().

Also remove the unused function crypto_comp_cast().

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11 16:37:01 +08:00

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921 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cryptographic API.
*
* Compression operations.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
*/
#include <linux/crypto.h>
#include "internal.h"
int crypto_comp_compress(struct crypto_comp *comp,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
{
struct crypto_tfm *tfm = crypto_comp_tfm(comp);
return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
dlen);
}
EXPORT_SYMBOL_GPL(crypto_comp_compress);
int crypto_comp_decompress(struct crypto_comp *comp,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
{
struct crypto_tfm *tfm = crypto_comp_tfm(comp);
return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
dlen);
}
EXPORT_SYMBOL_GPL(crypto_comp_decompress);