drivers: Add NEED_RADIOTAP

If there's ever a driver that, like nl80211, requires radiotap,
we need to have a NEED_RADIOTAP variable to avoid trying to link
the radiotap helpers twice. Introduce that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>

src/drivers/drivers.mak

@@ -29,7 +29,6 @@ DRV_OBJS += ../src/drivers/driver_nl80211_capa.o
 DRV_OBJS += ../src/drivers/driver_nl80211_event.o
 DRV_OBJS += ../src/drivers/driver_nl80211_monitor.o
 DRV_OBJS += ../src/drivers/driver_nl80211_scan.o
-DRV_OBJS += ../src/utils/radiotap.o
 ifdef CONFIG_DRIVER_NL80211_QCA
 DRV_CFLAGS += -DCONFIG_DRIVER_NL80211_QCA
 endif
@@ -38,6 +37,7 @@ NEED_AP_MLME=y
 NEED_NETLINK=y
 NEED_LINUX_IOCTL=y
 NEED_RFKILL=y
+NEED_RADIOTAP=y
 
 ifdef CONFIG_LIBNL32
   DRV_LIBS += -lnl-3
@@ -164,6 +164,10 @@ ifdef NEED_RFKILL
 DRV_OBJS += ../src/drivers/rfkill.o
 endif
 
+ifdef NEED_RADIOTAP
+DRV_OBJS += ../src/utils/radiotap.o
+endif
+
 ifdef CONFIG_VLAN_NETLINK
 ifdef CONFIG_FULL_DYNAMIC_VLAN
 ifdef CONFIG_LIBNL32

src/drivers/drivers.mk

@@ -25,7 +25,6 @@ DRV_OBJS += src/drivers/driver_nl80211_capa.c
 DRV_OBJS += src/drivers/driver_nl80211_event.c
 DRV_OBJS += src/drivers/driver_nl80211_monitor.c
 DRV_OBJS += src/drivers/driver_nl80211_scan.c
-DRV_OBJS += src/utils/radiotap.c
 ifdef CONFIG_DRIVER_NL80211_QCA
 DRV_CFLAGS += -DCONFIG_DRIVER_NL80211_QCA
 endif
@@ -34,6 +33,7 @@ NEED_AP_MLME=y
 NEED_NETLINK=y
 NEED_LINUX_IOCTL=y
 NEED_RFKILL=y
+NEED_RADIOTAP=y
 
 ifdef CONFIG_LIBNL32
   DRV_LIBS += -lnl-3
@@ -149,6 +149,10 @@ ifdef NEED_RFKILL
 DRV_OBJS += src/drivers/rfkill.c
 endif
 
+ifdef NEED_RADIOTAP
+DRV_OBJS += src/utils/radiotap.c
+endif
+
 ifdef CONFIG_DRIVER_CUSTOM
 DRV_CFLAGS += -DCONFIG_DRIVER_CUSTOM
 endif