Currently for skcipher IV generators they must provide givencrypt as that is the whole point. We are currently replacing skcipher IV generators with explicit IV generators. In order to maintain backwards compatibility, we need to allow the IV generators to still function as a normal skcipher when the RNG Is not present (e.g., in the initramfs during boot). IOW everything but givencrypt and givdecrypt will still work but those two will fail. Therefore this patch assigns a default givencrypt that simply returns an error should it be NULL. Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> --- crypto/ablkcipher.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index b15d797..b788f16 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -454,7 +454,7 @@ static int crypto_init_givcipher_ops(struct crypto_tfm *tfm, u32 type, alg->setkey : setkey; crt->encrypt = alg->encrypt; crt->decrypt = alg->decrypt; - crt->givencrypt = alg->givencrypt; + crt->givencrypt = alg->givencrypt ?: no_givdecrypt; crt->givdecrypt = alg->givdecrypt ?: no_givdecrypt; crt->base = __crypto_ablkcipher_cast(tfm); crt->ivsize = alg->ivsize; -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
