crypto: powerpc - CRYPT_CRC32C_VPMSUM should depend on ALTIVEC

The optimised crc32c implementation depends on VMX (aka. Altivec)
instructions, so the kernel must be built with Altivec support in order
for the crc32c code to build.

Fixes: 6dd7a82cc54e ("crypto: powerpc - Add POWER8 optimised crc32c")
Acked-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/Kconfig b/crypto/Kconfig
index a9377bef25e3ed0b3d3b2bf82b1cc456ab371920..84d71482bf080288d2c379b03dbb02894ba3b4c5 100644 (file)
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -439,7 +439,7 @@ config CRYPTO_CRC32C_INTEL
 
 config CRYPT_CRC32C_VPMSUM
        tristate "CRC32c CRC algorithm (powerpc64)"
-       depends on PPC64
+       depends on PPC64 && ALTIVEC
        select CRYPTO_HASH
        select CRC32
        help