502 	struct aead_instance *inst = aead_alg_instance(tfm);  in chachapoly_init()  local
503 	struct chachapoly_instance_ctx *ictx = aead_instance_ctx(inst);  in chachapoly_init()
546 static void chachapoly_free(struct aead_instance *inst)  in chachapoly_free()  argument
548 	struct chachapoly_instance_ctx *ctx = aead_instance_ctx(inst);  in chachapoly_free()
552 	kfree(inst);  in chachapoly_free()
559 	struct aead_instance *inst;  in chachapoly_create()  local
572 	inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);  in chachapoly_create()
573 	if (!inst)  in chachapoly_create()
575 	ctx = aead_instance_ctx(inst);  in chachapoly_create()
578 	err = crypto_grab_skcipher(&ctx->chacha, aead_crypto_instance(inst),  in chachapoly_create()
584 	err = crypto_grab_ahash(&ctx->poly, aead_crypto_instance(inst),  in chachapoly_create()
601 	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,  in chachapoly_create()
605 	if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,  in chachapoly_create()
610 	inst->alg.base.cra_priority = (chacha->base.cra_priority +  in chachapoly_create()
612 	inst->alg.base.cra_blocksize = 1;  in chachapoly_create()
613 	inst->alg.base.cra_alignmask = chacha->base.cra_alignmask |  in chachapoly_create()
615 	inst->alg.base.cra_ctxsize = sizeof(struct chachapoly_ctx) +  in chachapoly_create()
617 	inst->alg.ivsize = ivsize;  in chachapoly_create()
618 	inst->alg.chunksize = crypto_skcipher_alg_chunksize(chacha);  in chachapoly_create()
619 	inst->alg.maxauthsize = POLY1305_DIGEST_SIZE;  in chachapoly_create()
620 	inst->alg.init = chachapoly_init;  in chachapoly_create()
621 	inst->alg.exit = chachapoly_exit;  in chachapoly_create()
622 	inst->alg.encrypt = chachapoly_encrypt;  in chachapoly_create()
623 	inst->alg.decrypt = chachapoly_decrypt;  in chachapoly_create()
624 	inst->alg.setkey = chachapoly_setkey;  in chachapoly_create()
625 	inst->alg.setauthsize = chachapoly_setauthsize;  in chachapoly_create()
627 	inst->free = chachapoly_free;  in chachapoly_create()
629 	err = aead_register_instance(tmpl, inst);  in chachapoly_create()
632 		chachapoly_free(inst);  in chachapoly_create()