crypto: kpp - constify buffer passed to crypto_kpp_set_secret()

Constify the buffer passed to crypto_kpp_set_secret() and
kpp_alg.set_secret, since it is never modified.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
index 4307a2f2365f..ce8e1f79374b 100644
--- a/include/crypto/kpp.h
+++ b/include/crypto/kpp.h
@@ -74,7 +74,7 @@ struct crypto_kpp {
  * @base:               Common crypto API algorithm data structure
  */
 struct kpp_alg {
-        int (*set_secret)(struct crypto_kpp *tfm, void *buffer,
+        int (*set_secret)(struct crypto_kpp *tfm, const void *buffer,
                           unsigned int len);
         int (*generate_public_key)(struct kpp_request *req);
         int (*compute_shared_secret)(struct kpp_request *req);
@@ -273,8 +273,8 @@ struct kpp_secret {
  *
  * Return: zero on success; error code in case of error
  */
-static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm, void *buffer,
-                                        unsigned int len)
+static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm,
+                                        const void *buffer, unsigned int len)
 {
         struct kpp_alg *alg = crypto_kpp_alg(tfm);