The security offload function is performed by a cryptographic
engine core attached to the 128-bit PLB (processor local bus)
with builtin DMA and interrupt controllers. This, I think,
satisfies the requirement for the CRYPTO_ALG_KERN_DRIVER_ONLY
flag.

Signed-off-by: Christian Lamparter <chunk...@googlemail.com>
---
 drivers/crypto/amcc/crypto4xx_core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/amcc/crypto4xx_core.c 
b/drivers/crypto/amcc/crypto4xx_core.c
index 48215b8525a2..249d35ff3806 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -1114,7 +1114,9 @@ struct crypto4xx_alg_common crypto4xx_alg[] = {
                .cra_name       = "cbc(aes)",
                .cra_driver_name = "cbc-aes-ppc4xx",
                .cra_priority   = CRYPTO4XX_CRYPTO_PRIORITY,
-               .cra_flags      = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
+               .cra_flags      = CRYPTO_ALG_TYPE_ABLKCIPHER |
+                                 CRYPTO_ALG_ASYNC |
+                                 CRYPTO_ALG_KERN_DRIVER_ONLY,
                .cra_blocksize  = AES_BLOCK_SIZE,
                .cra_ctxsize    = sizeof(struct crypto4xx_ctx),
                .cra_type       = &crypto_ablkcipher_type,
-- 
2.14.1

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