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 */ 16 static inline void *acomp_request_ctx(struct acomp_req *req) 17 { 18 return req->__ctx; 19 } 20 21 static inline void *acomp_tfm_ctx(struct crypto_acomp *tfm) 22 { 23 return tfm->base.__crt_ctx; 24 } 25 26 static inline void acomp_request_complete(struct acomp_req *req, 27 int err) 28 { 29 req->base.complete(&req->base, err); 30 } 31 32 static inline const char *acomp_alg_name(struct crypto_acomp *tfm) 33 { 34 return crypto_acomp_tfm(tfm)->__crt_alg->cra_name; 35 } 36 37 static 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 47 static inline void __acomp_request_free(struct acomp_req *req) 48 { 49 kfree_sensitive(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 */ 62 int 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 void crypto_unregister_acomp(struct acomp_alg *alg); 73 74 int crypto_register_acomps(struct acomp_alg *algs, int count); 75 void crypto_unregister_acomps(struct acomp_alg *algs, int count); 76 77 #endif 78