crypto: talitos - implement cra_priority

SEC1 doesn't have IPSEC_ESP descriptor type but it is able to perform
IPSEC using HMAC_SNOOP_NO_AFEU, which is also existing on SEC2
In order to be able to define descriptors templates for SEC1 without
breaking SEC2+, we have to give lower priority to HMAC_SNOOP_NO_AFEU
so that SEC2+ selects IPSEC_ESP and not HMAC_SNOOP_NO_AFEU which is
less performant.

This is done by adding a priority field in the template. If the field
is 0, we use the default priority, otherwise we used the one in the
field.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index ff8cf39dfc631eb7450a8006f55ddaecc493d90b..dfd3a93e49546e0fafdcdfd5356d3d9dbbb18a69 100644 (file)
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -2120,6 +2120,7 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 
 struct talitos_alg_template {
        u32 type;
+       u32 priority;
        union {
                struct crypto_alg crypto;
                struct ahash_alg hash;
@@ -2897,7 +2898,10 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
        }
 
        alg->cra_module = THIS_MODULE;
-       alg->cra_priority = TALITOS_CRA_PRIORITY;
+       if (t_alg->algt.priority)
+               alg->cra_priority = t_alg->algt.priority;
+       else
+               alg->cra_priority = TALITOS_CRA_PRIORITY;
        alg->cra_alignmask = 0;
        alg->cra_ctxsize = sizeof(struct talitos_ctx);
        alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY;