LXR linux/include/crypto/internal/acompress.h

   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#include <crypto/acompress.h>
  12
  13/*
  14 * Transform internal helpers.
  15 */
  16static inline void *acomp_request_ctx(struct acomp_req *req)
  17{
  18        return req->__ctx;
  19}
  20
  21static inline void *acomp_tfm_ctx(struct crypto_acomp *tfm)
  22{
  23        return tfm->base.__crt_ctx;
  24}
  25
  26static inline void acomp_request_complete(struct acomp_req *req,
  27                                          int err)
  28{
  29        req->base.complete(&req->base, err);
  30}
  31
  32static inline const char *acomp_alg_name(struct crypto_acomp *tfm)
  33{
  34        return crypto_acomp_tfm(tfm)->__crt_alg->cra_name;
  35}
  36
  37static inline struct acomp_req *__acomp_request_alloc(struct crypto_acomp *tfm)
  38{
  39        struct acomp_req *req;
  40
  41        req = kzalloc(sizeof(*req) + crypto_acomp_reqsize(tfm), GFP_KERNEL);
  42        if (likely(req))
  43                acomp_request_set_tfm(req, tfm);
  44        return req;
  45}
  46
  47static inline void __acomp_request_free(struct acomp_req *req)
  48{
  49        kzfree(req);
  50}
  51
  52/**
  53 * crypto_register_acomp() -- Register asynchronous compression algorithm
  54 *
  55 * Function registers an implementation of an asynchronous
  56 * compression algorithm
  57 *
  58 * @alg:        algorithm definition
  59 *
  60 * Return:      zero on success; error code in case of error
  61 */
  62int crypto_register_acomp(struct acomp_alg *alg);
  63
  64/**
  65 * crypto_unregister_acomp() -- Unregister asynchronous compression algorithm
  66 *
  67 * Function unregisters an implementation of an asynchronous
  68 * compression algorithm
  69 *
  70 * @alg:        algorithm definition
  71 *
  72 * Return:      zero on success; error code in case of error
  73 */
  74int 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
  80