MRVDRV_SNAP_HEADER_LEN  268 drivers/net/wireless/marvell/libertas/defs.h 	 + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN)
MRVDRV_SNAP_HEADER_LEN  135 drivers/net/wireless/marvell/libertas_tf/libertas_tf.h 	 + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN)