[PATCH 4/5] crypto: ctr - use template array registering API to simplify the code

From: Xiongfeng Wang
Date: Tue Jan 15 2019 - 21:51:36 EST


Use crypto template array registering API to simplify the code.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@xxxxxxxxxx>
---
crypto/ctr.c | 46 +++++++++++++++++-----------------------------
1 file changed, 17 insertions(+), 29 deletions(-)

diff --git a/crypto/ctr.c b/crypto/ctr.c
index 30f3946..ef51099 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -248,13 +248,6 @@ static void crypto_ctr_free(struct crypto_instance *inst)
kfree(inst);
}

-static struct crypto_template crypto_ctr_tmpl = {
- .name = "ctr",
- .alloc = crypto_ctr_alloc,
- .free = crypto_ctr_free,
- .module = THIS_MODULE,
-};
-
static int crypto_rfc3686_setkey(struct crypto_skcipher *parent,
const u8 *key, unsigned int keylen)
{
@@ -444,36 +437,31 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
goto out;
}

-static struct crypto_template crypto_rfc3686_tmpl = {
- .name = "rfc3686",
- .create = crypto_rfc3686_create,
- .module = THIS_MODULE,
+static struct crypto_template crypto_ctr_tmpl[] = {
+ {
+ .name = "ctr",
+ .alloc = crypto_ctr_alloc,
+ .free = crypto_ctr_free,
+ .module = THIS_MODULE,
+ },
+ {
+ .name = "rfc3686",
+ .create = crypto_rfc3686_create,
+ .module = THIS_MODULE,
+ },
};

+
static int __init crypto_ctr_module_init(void)
{
- int err;
-
- err = crypto_register_template(&crypto_ctr_tmpl);
- if (err)
- goto out;
-
- err = crypto_register_template(&crypto_rfc3686_tmpl);
- if (err)
- goto out_drop_ctr;
-
-out:
- return err;
-
-out_drop_ctr:
- crypto_unregister_template(&crypto_ctr_tmpl);
- goto out;
+ return crypto_register_templates(crypto_ctr_tmpl,
+ ARRAY_SIZE(crypto_ctr_tmpl));
}

static void __exit crypto_ctr_module_exit(void)
{
- crypto_unregister_template(&crypto_rfc3686_tmpl);
- crypto_unregister_template(&crypto_ctr_tmpl);
+ crypto_unregister_templates(crypto_ctr_tmpl,
+ ARRAY_SIZE(crypto_ctr_tmpl));
}

module_init(crypto_ctr_module_init);
--
1.7.12.4