diff options
| -rw-r--r-- | arch/s390/crypto/aes_s390.c | 79 | ||||
| -rw-r--r-- | arch/s390/crypto/des_s390.c | 98 |
2 files changed, 79 insertions, 98 deletions
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 4eb8de417419..be87575270ff 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -731,8 +731,6 @@ static struct crypto_alg xts_aes_alg = { } }; -static int xts_aes_alg_reg; - static int ctr_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) { @@ -870,7 +868,26 @@ static struct crypto_alg ctr_aes_alg = { } }; -static int ctr_aes_alg_reg; +static struct crypto_alg *aes_s390_algs_ptr[5]; +static int aes_s390_algs_num; + +static int aes_s390_register_alg(struct crypto_alg *alg) +{ + int ret; + + ret = crypto_register_alg(alg); + if (!ret) + aes_s390_algs_ptr[aes_s390_algs_num++] = alg; + return ret; +} + +static void aes_s390_fini(void) +{ + while (aes_s390_algs_num--) + crypto_unregister_alg(aes_s390_algs_ptr[aes_s390_algs_num]); + if (ctrblk) + free_page((unsigned long) ctrblk); +} static int __init aes_s390_init(void) { @@ -891,24 +908,23 @@ static int __init aes_s390_init(void) pr_info("AES hardware acceleration is only available for" " 128-bit keys\n"); - ret = crypto_register_alg(&aes_alg); + ret = aes_s390_register_alg(&aes_alg); if (ret) - goto aes_err; + goto out_err; - ret = crypto_register_alg(&ecb_aes_alg); + ret = aes_s390_register_alg(&ecb_aes_alg); if (ret) - goto ecb_aes_err; + goto out_err; - ret = crypto_register_alg(&cbc_aes_alg); + ret = aes_s390_register_alg(&cbc_aes_alg); if (ret) - goto cbc_aes_err; + goto out_err; if (cpacf_query(CPACF_KM, CPACF_KM_XTS_128) && cpacf_query(CPACF_KM, CPACF_KM_XTS_256)) { - ret = crypto_register_alg(&xts_aes_alg); + ret = aes_s390_register_alg(&xts_aes_alg); if (ret) - goto xts_aes_err; - xts_aes_alg_reg = 1; + goto out_err; } if (cpacf_query(CPACF_KMCTR, CPACF_KMCTR_AES_128) && @@ -917,42 +933,17 @@ static int __init aes_s390_init(void) ctrblk = (u8 *) __get_free_page(GFP_KERNEL); if (!ctrblk) { ret = -ENOMEM; - goto ctr_aes_err; + goto out_err; } - ret = crypto_register_alg(&ctr_aes_alg); - if (ret) { - free_page((unsigned long) ctrblk); - goto ctr_aes_err; - } - ctr_aes_alg_reg = 1; + ret = aes_s390_register_alg(&ctr_aes_alg); + if (ret) + goto out_err; } -out: + return 0; +out_err: + aes_s390_fini(); return ret; - -ctr_aes_err: - crypto_unregister_alg(&xts_aes_alg); -xts_aes_err: - crypto_unregister_alg(&cbc_aes_alg); -cbc_aes_err: - crypto_unregister_alg(&ecb_aes_alg); -ecb_aes_err: - crypto_unregister_alg(&aes_alg); -aes_err: - goto out; -} - -static void __exit aes_s390_fini(void) -{ - if (ctr_aes_alg_reg) { - crypto_unregister_alg(&ctr_aes_alg); - free_page((unsigned long) ctrblk); - } - if (xts_aes_alg_reg) - crypto_unregister_alg(&xts_aes_alg); - crypto_unregister_alg(&cbc_aes_alg); - crypto_unregister_alg(&ecb_aes_alg); - crypto_unregister_alg(&aes_alg); } module_cpu_feature_match(MSA, aes_s390_init); diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index 999878597331..b77a546f1e76 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -529,6 +529,27 @@ static struct crypto_alg ctr_des3_alg = { } }; +static struct crypto_alg *des_s390_algs_ptr[8]; +static int des_s390_algs_num; + +static int des_s390_register_alg(struct crypto_alg *alg) +{ + int ret; + + ret = crypto_register_alg(alg); + if (!ret) + des_s390_algs_ptr[des_s390_algs_num++] = alg; + return ret; +} + +static void des_s390_exit(void) +{ + while (des_s390_algs_num--) + crypto_unregister_alg(des_s390_algs_ptr[des_s390_algs_num]); + if (ctrblk) + free_page((unsigned long) ctrblk); +} + static int __init des_s390_init(void) { int ret; @@ -537,75 +558,44 @@ static int __init des_s390_init(void) !cpacf_query(CPACF_KM, CPACF_KM_TDEA_192)) return -EOPNOTSUPP; - ret = crypto_register_alg(&des_alg); + ret = des_s390_register_alg(&des_alg); if (ret) - goto des_err; - ret = crypto_register_alg(&ecb_des_alg); + goto out_err; + ret = des_s390_register_alg(&ecb_des_alg); if (ret) - goto ecb_des_err; - ret = crypto_register_alg(&cbc_des_alg); + goto out_err; + ret = des_s390_register_alg(&cbc_des_alg); if (ret) - goto cbc_des_err; - ret = crypto_register_alg(&des3_alg); + goto out_err; + ret = des_s390_register_alg(&des3_alg); if (ret) - goto des3_err; - ret = crypto_register_alg(&ecb_des3_alg); + goto out_err; + ret = des_s390_register_alg(&ecb_des3_alg); if (ret) - goto ecb_des3_err; - ret = crypto_register_alg(&cbc_des3_alg); + goto out_err; + ret = des_s390_register_alg(&cbc_des3_alg); if (ret) - goto cbc_des3_err; + goto out_err; if (cpacf_query(CPACF_KMCTR, CPACF_KMCTR_DEA) && cpacf_query(CPACF_KMCTR, CPACF_KMCTR_TDEA_192)) { - ret = crypto_register_alg(&ctr_des_alg); - if (ret) - goto ctr_des_err; - ret = crypto_register_alg(&ctr_des3_alg); - if (ret) - goto ctr_des3_err; ctrblk = (u8 *) __get_free_page(GFP_KERNEL); if (!ctrblk) { ret = -ENOMEM; - goto ctr_mem_err; + goto out_err; } + ret = des_s390_register_alg(&ctr_des_alg); + if (ret) + goto out_err; + ret = des_s390_register_alg(&ctr_des3_alg); + if (ret) + goto out_err; } -out: - return ret; - -ctr_mem_err: - crypto_unregister_alg(&ctr_des3_alg); -ctr_des3_err: - crypto_unregister_alg(&ctr_des_alg); -ctr_des_err: - crypto_unregister_alg(&cbc_des3_alg); -cbc_des3_err: - crypto_unregister_alg(&ecb_des3_alg); -ecb_des3_err: - crypto_unregister_alg(&des3_alg); -des3_err: - crypto_unregister_alg(&cbc_des_alg); -cbc_des_err: - crypto_unregister_alg(&ecb_des_alg); -ecb_des_err: - crypto_unregister_alg(&des_alg); -des_err: - goto out; -} -static void __exit des_s390_exit(void) -{ - if (ctrblk) { - crypto_unregister_alg(&ctr_des_alg); - crypto_unregister_alg(&ctr_des3_alg); - free_page((unsigned long) ctrblk); - } - crypto_unregister_alg(&cbc_des3_alg); - crypto_unregister_alg(&ecb_des3_alg); - crypto_unregister_alg(&des3_alg); - crypto_unregister_alg(&cbc_des_alg); - crypto_unregister_alg(&ecb_des_alg); - crypto_unregister_alg(&des_alg); + return 0; +out_err: + des_s390_exit(); + return ret; } module_cpu_feature_match(MSA, des_s390_init); |