217 	struct crypto_alg *alg;  in crypto_cbc_alloc()  local
224 	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,  in crypto_cbc_alloc()
226 	if (IS_ERR(alg))  in crypto_cbc_alloc()
227 		return ERR_CAST(alg);  in crypto_cbc_alloc()
230 	if (!is_power_of_2(alg->cra_blocksize))  in crypto_cbc_alloc()
233 	inst = crypto_alloc_instance("cbc", alg);  in crypto_cbc_alloc()
237 	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;  in crypto_cbc_alloc()
238 	inst->alg.cra_priority = alg->cra_priority;  in crypto_cbc_alloc()
239 	inst->alg.cra_blocksize = alg->cra_blocksize;  in crypto_cbc_alloc()
240 	inst->alg.cra_alignmask = alg->cra_alignmask;  in crypto_cbc_alloc()
241 	inst->alg.cra_type = &crypto_blkcipher_type;  in crypto_cbc_alloc()
244 	inst->alg.cra_alignmask |= __alignof__(u32) - 1;  in crypto_cbc_alloc()
246 	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;  in crypto_cbc_alloc()
247 	inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;  in crypto_cbc_alloc()
248 	inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;  in crypto_cbc_alloc()
250 	inst->alg.cra_ctxsize = sizeof(struct crypto_cbc_ctx);  in crypto_cbc_alloc()
252 	inst->alg.cra_init = crypto_cbc_init_tfm;  in crypto_cbc_alloc()
253 	inst->alg.cra_exit = crypto_cbc_exit_tfm;  in crypto_cbc_alloc()
255 	inst->alg.cra_blkcipher.setkey = crypto_cbc_setkey;  in crypto_cbc_alloc()
256 	inst->alg.cra_blkcipher.encrypt = crypto_cbc_encrypt;  in crypto_cbc_alloc()
257 	inst->alg.cra_blkcipher.decrypt = crypto_cbc_decrypt;  in crypto_cbc_alloc()
260 	crypto_mod_put(alg);  in crypto_cbc_alloc()