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 */ 18 static inline void *acomp_request_ctx(struct acomp_req *req) 19 { 20 return req->__ctx; 21 } 22 23 static inline void *acomp_tfm_ctx(struct crypto_acomp *tfm) 24 { 25 return tfm->base.__crt_ctx; 26 } 27 28 static inline void acomp_request_complete(struct acomp_req *req, 29 int err) 30 { 31 crypto_request_complete(&req->base, err); 32 } 33 34 static inline const char *acomp_alg_name(struct crypto_acomp *tfm) 35 { 36 return crypto_acomp_tfm(tfm)->__crt_alg->cra_name; 37 } 38 39 static 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 49 static 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 */ 64 int 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 */ 74 void crypto_unregister_acomp(struct acomp_alg *alg); 75 76 int crypto_register_acomps(struct acomp_alg *algs, int count); 77 void crypto_unregister_acomps(struct acomp_alg *algs, int count); 78 79 #endif 80