crypto: sunxi-ss - prevent compilation on 64-bit

The driver for the sunxi-ss crypto engine is not entirely 64-bit safe,
compilation on arm64 spits some warnings.
The proper fix was deemed to involved [1], so since 64-bit SoCs won't
have this IP block we just disable this driver for 64-bit.

[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2016-January/399988.html
     (and the reply)

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Corentin LABBE <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 0a6e0b7..fed3ffb 100644 (file)
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -488,7 +488,7 @@ config CRYPTO_DEV_IMGTEC_HASH
 
 config CRYPTO_DEV_SUN4I_SS
        tristate "Support for Allwinner Security System cryptographic accelerator"
-       depends on ARCH_SUNXI
+       depends on ARCH_SUNXI && !64BIT
        select CRYPTO_MD5
        select CRYPTO_SHA1
        select CRYPTO_AES