crypto: gcm - Use GHASH digest algorithm

Remove the dedicated GHASH implementation in GCM, and uses the GHASH
digest algorithm instead. This will make GCM uses hardware accelerated
GHASH implementation automatically if available.

ahash instead of shash interface is used, because some hardware
accelerated GHASH implementation needs asynchronous interface.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 0ae170e01051..5105cf15834f 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -157,7 +157,7 @@ config CRYPTO_GCM
         tristate "GCM/GMAC support"
         select CRYPTO_CTR
         select CRYPTO_AEAD
-        select CRYPTO_GF128MUL
+        select CRYPTO_GHASH
         help
           Support for Galois/Counter Mode (GCM) and Galois Message
           Authentication Code (GMAC). Required for IPSec.