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    Subject[PATCH 5/6] crypto: talitos - implement cra_priority
    Date
    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>
    ---
    drivers/crypto/talitos.c | 6 +++++-
    1 file changed, 5 insertions(+), 1 deletion(-)

    diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
    index fcdf83b..b554f56 100644
    --- a/drivers/crypto/talitos.c
    +++ b/drivers/crypto/talitos.c
    @@ -2103,6 +2103,7 @@ 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;
    @@ -2880,7 +2881,10 @@ 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;
    --
    2.1.0
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