Commit c12abf34 authored Aug 09, 2016 by Michael Ellerman Committed by Herbert Xu Aug 09, 2016

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: 6dd7a82c ("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>

parent 2fdea258

crypto/Kconfig

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -439,7 +439,7 @@ config CRYPTO_CRC32C_INTEL

	config CRYPT_CRC32C_VPMSUM		config CRYPT_CRC32C_VPMSUM
	tristate "CRC32c CRC algorithm (powerpc64)"		tristate "CRC32c CRC algorithm (powerpc64)"
	depends on PPC64		depends on PPC64 && ALTIVEC
	select CRYPTO_HASH		select CRYPTO_HASH
	select CRC32		select CRC32
	help		help