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crypto: kpp - constify buffer passed to crypto_kpp_set_secret()

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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>
This commit is contained in:
Eric Biggers
2017-02-24 15:46:58 -08:00
committed by Herbert Xu
parent cd220ae6c7
commit 5527dfb6dd
4 changed files with 8 additions and 6 deletions
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include/crypto/kpp.h
+3 -3
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@@ -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);