PREN_PREAMBLE     631 drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c 		dur = PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
PREN_PREAMBLE    5806 drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c 		dur -= PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);