[PATCH] wifi: ipw2x00/lib80211: select ARC4 helper

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

The lib80211 code uses arc4 crypto helpers that can be
disabled:

ERROR: modpost: "arc4_setkey" [drivers/net/wireless/intel/ipw2x00/libipw.ko] undefined!
ERROR: modpost: "arc4_crypt" [drivers/net/wireless/intel/ipw2x00/libipw.ko] undefined!

Select the library from Kconfig to ensure this can be called.

Fixes: 02f220b52670 ("wifi: ipw2x00/lib80211: move remaining lib80211 into libipw")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/net/wireless/intel/ipw2x00/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/ipw2x00/Kconfig b/drivers/net/wireless/intel/ipw2x00/Kconfig
index 5e98be664d38..98a17c941100 100644
--- a/drivers/net/wireless/intel/ipw2x00/Kconfig
+++ b/drivers/net/wireless/intel/ipw2x00/Kconfig
@@ -6,6 +6,7 @@
 config IPW2100
 	tristate "Intel PRO/Wireless 2100 Network Connection"
 	depends on PCI && CFG80211
+	select CRYPTO_LIB_ARC4
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select FW_LOADER
-- 
2.39.5