WLAN_EID_CHALLENGE  307 drivers/staging/rtl8712/ieee80211.h #define WLAN_EID_CHALLENGE 16
WLAN_EID_CHALLENGE  117 drivers/staging/wlan-ng/p80211mgmt.h #define WLAN_EID_CHALLENGE	16
WLAN_EID_CHALLENGE 2364 include/linux/ieee80211.h 	WLAN_EID_CHALLENGE = 16,