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crypto: atmel: fix bogus select

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The Atmel at91 crypto driver unconditionally selects AT_HDMAC,
which results in a Kconfig warning if that driver is not enabled:

warning: (CRYPTO_DEV_ATMEL_AES) selects AT_HDMAC which has unmet direct dependencies (DMADEVICES && ARCH_AT91)

The crypto driver itself does not actually have a dependency
on a particular dma engine, other than this being the one that
is used in at91.

Removing the 'select' gets rid of the warning, but can cause
the driver to be unusable if the HDMAC is not enabled at the
same time. To work around that, this patch clarifies the runtime
dependency to be 'AT_HDMAC || AT_XDMAC', but adds an alternative
for COMPILE_TEST, which lets the driver get build on all systems.

The ARCH_AT91 dependency is implied by AT_XDMAC || AT_HDMAC now
and no longer needs to be listed separately.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Arnd Bergmann 2015-01-27 22:34:04 +01:00 committed by Herbert Xu
parent f18611da86
commit 56b85c9d7a
1 changed files with 1 additions and 2 deletions
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3
drivers/crypto/Kconfig
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@ -378,10 +378,9 @@ config CRYPTO_DEV_BFIN_CRC
config CRYPTO_DEV_ATMEL_AES config CRYPTO_DEV_ATMEL_AES
tristate "Support for Atmel AES hw accelerator" tristate "Support for Atmel AES hw accelerator"
depends on ARCH_AT91 depends on AT_XDMAC || AT_HDMAC || COMPILE_TEST
select CRYPTO_AES select CRYPTO_AES
select CRYPTO_BLKCIPHER select CRYPTO_BLKCIPHER
select AT_HDMAC
help help
Some Atmel processors have AES hw accelerator. Some Atmel processors have AES hw accelerator.
Select this if you want to use the Atmel module for Select this if you want to use the Atmel module for