[PATCH] staging: rtl8723bs: fix unmet dependency on CRYPTO for CRYPTO_LIB_ARC4

[Julian Braha]

When RTL8723BS is selected, and CRYPTO is not selected,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for CRYPTO_LIB_ARC4
  Depends on [n]: CRYPTO [=n]
  Selected by [m]:
  - RTL8723BS [=m] && STAGING [=y] && WLAN [=y] && MMC [=y] && CFG80211 [=y] && m && MODULES [=y]
  - RTLLIB_CRYPTO_WEP [=m] && STAGING [=y] && RTLLIB [=m]

This is because RTL8723BS selects CRYPTO_LIB_ARC4
without selecting CRYPTO, despite CRYPTO_LIB_ARC4
depending on CRYPTO.

This unmet dependency bug was detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.

Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx>
---
 drivers/staging/rtl8723bs/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rtl8723bs/Kconfig b/drivers/staging/rtl8723bs/Kconfig
index f40b3021fe8a..f23e29b679fb 100644
--- a/drivers/staging/rtl8723bs/Kconfig
+++ b/drivers/staging/rtl8723bs/Kconfig
@@ -4,6 +4,7 @@ config RTL8723BS
 	depends on WLAN && MMC && CFG80211
 	depends on m
 	select CFG80211_WEXT
+	select CRYPTO
 	select CRYPTO_LIB_ARC4
 	help
 	This option enables support for RTL8723BS SDIO drivers, such as
-- 
2.30.2