2015-05-25 04:46:42

by Cyril Bur

[permalink] [raw]
Subject: [PATCH] crypto: nx - tweak Makefile dependencies

Selecting CRYPTO_DEV_NX causes a conditional include of nx/Kconfig but
options within nx/Kconfig do not depend on it. The included options should
depend on CRYPTO_DEV_NX since currently CRYPTO_DEV_NX cannot be built for
little endian. While Kconfig appears to understand this convoluted
dependency situation, it isn't explicitly stated.

This patch addresses the missing dependencies for CRYPTO_DEV_NX_ENCRYPT and
CRYPTO_DEV_NX_COMPRESS which should depend on CRYPTO_DEV_NX. It also makes
more sense to put all three options into the nx/Kconfig file and have the
file included unconditionally.

CC: Marcelo Henrique Cerri <[email protected]>
CC: Fionnuala Gunter <[email protected]>
CC: [email protected]
CC: [email protected]
Signed-off-by: Cyril Bur <[email protected]>
---
drivers/crypto/Kconfig | 11 +----------
drivers/crypto/nx/Kconfig | 11 +++++++++--
2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 033c0c8..cc96a7d 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -311,16 +311,7 @@ config CRYPTO_DEV_S5P
Select this to offload Samsung S5PV210 or S5PC110, Exynos from AES
algorithms execution.

-config CRYPTO_DEV_NX
- bool "Support for IBM Power7+ in-Nest cryptographic acceleration"
- depends on PPC64 && IBMVIO && !CPU_LITTLE_ENDIAN
- default n
- help
- Support for Power7+ in-Nest cryptographic acceleration.
-
-if CRYPTO_DEV_NX
- source "drivers/crypto/nx/Kconfig"
-endif
+source "drivers/crypto/nx/Kconfig"

config CRYPTO_DEV_UX500
tristate "Driver for ST-Ericsson UX500 crypto hardware acceleration"
diff --git a/drivers/crypto/nx/Kconfig b/drivers/crypto/nx/Kconfig
index f826166..0726f12 100644
--- a/drivers/crypto/nx/Kconfig
+++ b/drivers/crypto/nx/Kconfig
@@ -1,6 +1,13 @@
+config CRYPTO_DEV_NX
+ bool "Support for IBM Power7+ in-Nest cryptographic acceleration"
+ depends on PPC64 && IBMVIO && !CPU_LITTLE_ENDIAN
+ default n
+ help
+ Support for Power7+ in-Nest cryptographic acceleration.
+
config CRYPTO_DEV_NX_ENCRYPT
tristate "Encryption acceleration support"
- depends on PPC64 && IBMVIO
+ depends on CRYPTO_DEV_NX
default y
select CRYPTO_AES
select CRYPTO_CBC
@@ -18,7 +25,7 @@ config CRYPTO_DEV_NX_ENCRYPT

config CRYPTO_DEV_NX_COMPRESS
tristate "Compression acceleration support"
- depends on PPC64 && IBMVIO
+ depends on CRYPTO_DEV_NX
default y
help
Support for Power7+ in-Nest compression acceleration. This
--
1.9.1


2015-05-27 09:50:48

by Herbert Xu

[permalink] [raw]
Subject: Re: [PATCH] crypto: nx - tweak Makefile dependencies

On Mon, May 25, 2015 at 02:45:16PM +1000, Cyril Bur wrote:
> Selecting CRYPTO_DEV_NX causes a conditional include of nx/Kconfig but
> options within nx/Kconfig do not depend on it. The included options should
> depend on CRYPTO_DEV_NX since currently CRYPTO_DEV_NX cannot be built for
> little endian. While Kconfig appears to understand this convoluted
> dependency situation, it isn't explicitly stated.
>
> This patch addresses the missing dependencies for CRYPTO_DEV_NX_ENCRYPT and
> CRYPTO_DEV_NX_COMPRESS which should depend on CRYPTO_DEV_NX. It also makes
> more sense to put all three options into the nx/Kconfig file and have the
> file included unconditionally.
>
> CC: Marcelo Henrique Cerri <[email protected]>
> CC: Fionnuala Gunter <[email protected]>
> CC: [email protected]
> CC: [email protected]
> Signed-off-by: Cyril Bur <[email protected]>

Your patch doesn't apply against the cryptodev tree. Please rebase
it.

Thanks,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt