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s390/crypto: fix aes/paes Kconfig dependeny

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The s390_paes and the s390_aes kernel module used just one
config symbol CONFIG_CRYPTO_AES. As paes has a dependency
to PKEY and this requires ZCRYPT the aes module also had
a dependency to the zcrypt device driver which is not true.
Fixed by introducing a new config symbol CONFIG_CRYPTO_PAES
which has dependencies to PKEY and ZCRYPT. Removed the
dependency for the aes module to ZCRYPT.

Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Harald Freudenberger 2017-05-11 17:15:54 +02:00 committed by Martin Schwidefsky
parent a1b19d07ca
commit c4684f98d3
2 changed files with 16 additions and 2 deletions
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3
arch/s390/crypto/Makefile
View File

@ -6,7 +6,8 @@ obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o
obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o paes_s390.o
obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o
obj-$(CONFIG_CRYPTO_PAES_S390) += paes_s390.o
obj-$(CONFIG_S390_PRNG) += prng.o
obj-$(CONFIG_CRYPTO_GHASH_S390) += ghash_s390.o
obj-$(CONFIG_CRYPTO_CRC32_S390) += crc32-vx_s390.o

15
drivers/crypto/Kconfig
View File

@ -89,6 +89,20 @@ config PKEY
requires to have at least one CEX card in coprocessor mode
available at runtime.
config CRYPTO_PAES_S390
tristate "PAES cipher algorithms"
depends on S390
depends on ZCRYPT
depends on PKEY
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
help
This is the s390 hardware accelerated implementation of the
AES cipher algorithms for use with protected key.
Select this option if you want to use the paes cipher
for example to use protected key encrypted devices.
config CRYPTO_SHA1_S390
tristate "SHA1 digest algorithm"
depends on S390
@ -137,7 +151,6 @@ config CRYPTO_AES_S390
depends on S390
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
select PKEY
help
This is the s390 hardware accelerated implementation of the
AES cipher algorithms (FIPS-197).