[PATCH] staging: rtl8192e: fix kconfig dependency on CRYPTO

[Julian Braha]

When RTLLIB_CRYPTO_TKIP is enabled and CRYPTO is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for CRYPTO_MICHAEL_MIC
  Depends on [n]: CRYPTO [=n]
  Selected by [m]:
  - RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]

WARNING: unmet direct dependencies detected for CRYPTO_LIB_ARC4
  Depends on [n]: CRYPTO [=n]
  Selected by [m]:
  - RTLLIB_CRYPTO_TKIP [=m] && STAGING [=y] && RTLLIB [=m]
  - RTLLIB_CRYPTO_WEP [=m] && STAGING [=y] && RTLLIB [=m]

This is because RTLLIB_CRYPTO_TKIP selects CRYPTO_MICHAEL_MIC and 
CRYPTO_LIB_ARC4, without depending on or selecting CRYPTO, 
despite those config options being subordinate to CRYPTO.

Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx>
---
 drivers/staging/rtl8192e/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rtl8192e/Kconfig b/drivers/staging/rtl8192e/Kconfig
index 03fcc23516fd..6e7d84ac06f5 100644
--- a/drivers/staging/rtl8192e/Kconfig
+++ b/drivers/staging/rtl8192e/Kconfig
@@ -26,6 +26,7 @@ config RTLLIB_CRYPTO_CCMP
 config RTLLIB_CRYPTO_TKIP
 	tristate "Support for rtllib TKIP crypto"
 	depends on RTLLIB
+	select CRYPTO
 	select CRYPTO_LIB_ARC4
 	select CRYPTO_MICHAEL_MIC
 	default y