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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Asynchronous Compression operations
4 *
5 * Copyright (c) 2016, Intel Corporation
6 * Authors: Weigang Li <weigang.li@intel.com>
7 * Giovanni Cabiddu <giovanni.cabiddu@intel.com>
8 */
9#ifndef _CRYPTO_ACOMP_INT_H
10#define _CRYPTO_ACOMP_INT_H
11
12#include <crypto/acompress.h>
13#include <crypto/algapi.h>
14
15/*
16 * Transform internal helpers.
17 */
18static inline void *acomp_request_ctx(struct acomp_req *req)
19{
20 return req->__ctx;
21}
22
23static inline void *acomp_tfm_ctx(struct crypto_acomp *tfm)
24{
25 return tfm->base.__crt_ctx;
26}
27
28static inline void acomp_request_complete(struct acomp_req *req,
29 int err)
30{
31 crypto_request_complete(&req->base, err);
32}
33
34static inline const char *acomp_alg_name(struct crypto_acomp *tfm)
35{
36 return crypto_acomp_tfm(tfm)->__crt_alg->cra_name;
37}
38
39static inline struct acomp_req *__acomp_request_alloc(struct crypto_acomp *tfm)
40{
41 struct acomp_req *req;
42
43 req = kzalloc(sizeof(*req) + crypto_acomp_reqsize(tfm), GFP_KERNEL);
44 if (likely(req))
45 acomp_request_set_tfm(req, tfm);
46 return req;
47}
48
49static inline void __acomp_request_free(struct acomp_req *req)
50{
51 kfree_sensitive(req);
52}
53
54/**
55 * crypto_register_acomp() -- Register asynchronous compression algorithm
56 *
57 * Function registers an implementation of an asynchronous
58 * compression algorithm
59 *
60 * @alg: algorithm definition
61 *
62 * Return: zero on success; error code in case of error
63 */
64int crypto_register_acomp(struct acomp_alg *alg);
65
66/**
67 * crypto_unregister_acomp() -- Unregister asynchronous compression algorithm
68 *
69 * Function unregisters an implementation of an asynchronous
70 * compression algorithm
71 *
72 * @alg: algorithm definition
73 */
74void crypto_unregister_acomp(struct acomp_alg *alg);
75
76int crypto_register_acomps(struct acomp_alg *algs, int count);
77void crypto_unregister_acomps(struct acomp_alg *algs, int count);
78
79#endif