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-rw-r--r--drivers/crypto/Kconfig17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 910c715325be..86c99cd333fa 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -1,10 +1,10 @@
menu "Hardware crypto devices"
config CRYPTO_DEV_PADLOCK
- bool "Support for VIA PadLock ACE"
+ tristate "Support for VIA PadLock ACE"
depends on X86_32
select CRYPTO_ALGAPI
- default y
+ default m
help
Some VIA processors come with an integrated crypto engine
(so called VIA PadLock ACE, Advanced Cryptography Engine)
@@ -12,8 +12,17 @@ config CRYPTO_DEV_PADLOCK
operations with supported algorithms.
The instructions are used only when the CPU supports them.
- Otherwise software encryption is used. If you are unsure,
- say Y.
+ Otherwise software encryption is used.
+
+ Selecting M for this option will compile a helper module
+ padlock.ko that should autoload all below configured
+ algorithms. Don't worry if your hardware does not support
+ some or all of them. In such case padlock.ko will
+ simply write a single line into the kernel log informing
+ about its failure but everything will keep working fine.
+
+ If you are unsure, say M. The compiled module will be
+ called padlock.ko
config CRYPTO_DEV_PADLOCK_AES
tristate "PadLock driver for AES algorithm"