[PATCH 04/10] crypto: inside-secure - make the context control size dynamic

[Antoine Tenart]

This patch makes the context control size computation dynamic, not to
rely on hardcoded values. This is better for the future, and will help
adding the AEAD support.

Signed-off-by: Antoine Tenart <antoine.ten...@bootlin.com>
---
 drivers/crypto/inside-secure/safexcel_cipher.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c 
b/drivers/crypto/inside-secure/safexcel_cipher.c
index 4977039f3d33..7c801aace04b 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -118,21 +118,20 @@ static int safexcel_context_control(struct 
safexcel_cipher_ctx *ctx,
        switch (ctx->key_len) {
        case AES_KEYSIZE_128:
                cdesc->control_data.control0 |= 
CONTEXT_CONTROL_CRYPTO_ALG_AES128;
-               ctrl_size = 4;
                break;
        case AES_KEYSIZE_192:
                cdesc->control_data.control0 |= 
CONTEXT_CONTROL_CRYPTO_ALG_AES192;
-               ctrl_size = 6;
                break;
        case AES_KEYSIZE_256:
                cdesc->control_data.control0 |= 
CONTEXT_CONTROL_CRYPTO_ALG_AES256;
-               ctrl_size = 8;
                break;
        default:
                dev_err(priv->dev, "aes keysize not supported: %u\n",
                        ctx->key_len);
                return -EINVAL;
        }
+
+       ctrl_size = ctx->key_len / sizeof(u32);
        cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(ctrl_size);
 
        return 0;
-- 
2.17.0