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Commit 1aaa753d authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: skcipher - Add helper to zero stack request 



As the size of an skcipher_request is variable, it's awkward to
zero it explicitly.  This patch adds a helper to do that which
should be used when it is created on the stack.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e67ffe0a

include/crypto/skcipher.h

+7 −0
Original line number Diff line number Diff line
@@ -445,6 +445,13 @@ static inline void skcipher_request_free(struct skcipher_request *req) 
	kzfree(req);

}



static inline void skcipher_request_zero(struct skcipher_request *req)

{

	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);



	memzero_explicit(req, sizeof(*req) + crypto_skcipher_reqsize(tfm));

}



/**

 * skcipher_request_set_callback() - set asynchronous callback function

 * @req: request handle