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Subject[PATCH 1/5] crypto: api - add a helper to (un)register a array of templates
Date
This patch add a helper to (un)register a array of templates. The
following patches will use this helper to simplify the code.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
---
crypto/algapi.c | 27 +++++++++++++++++++++++++++
include/crypto/algapi.h | 2 ++
2 files changed, 29 insertions(+)

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 8b65ada..59a6599 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -494,6 +494,24 @@ int crypto_register_template(struct crypto_template *tmpl)
}
EXPORT_SYMBOL_GPL(crypto_register_template);

+int crypto_register_templates(struct crypto_template *tmpl, int num)
+{
+ int i, err;
+
+ for (i = 0; i < num; i++) {
+ err = crypto_register_template(&tmpl[i]);
+ if (err)
+ goto out;
+ }
+ return 0;
+
+out:
+ for (i -= 1; i >= 0; i--)
+ crypto_unregister_template(&tmpl[i]);
+ return err;
+}
+EXPORT_SYMBOL_GPL(crypto_register_templates);
+
void crypto_unregister_template(struct crypto_template *tmpl)
{
struct crypto_instance *inst;
@@ -523,6 +541,15 @@ void crypto_unregister_template(struct crypto_template *tmpl)
}
EXPORT_SYMBOL_GPL(crypto_unregister_template);

+void crypto_unregister_templates(struct crypto_template *tmpl, int num)
+{
+ int i;
+
+ for (i = num - 1; i >= 0; i--)
+ crypto_unregister_template(&tmpl[i]);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_templates);
+
static struct crypto_template *__crypto_lookup_template(const char *name)
{
struct crypto_template *q, *tmpl = NULL;
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 4a5ad10..e879a20 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -143,7 +143,9 @@ struct ablkcipher_walk {
void crypto_mod_put(struct crypto_alg *alg);

int crypto_register_template(struct crypto_template *tmpl);
+int crypto_register_templates(struct crypto_template *tmpl, int num);
void crypto_unregister_template(struct crypto_template *tmpl);
+void crypto_unregister_templates(struct crypto_template *tmpl, int num);
struct crypto_template *crypto_lookup_template(const char *name);

int crypto_register_instance(struct crypto_template *tmpl,
--
1.7.12.4
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