115 	int dur;  in ieee80211_frame_duration()  local
143 		dur = 16; /* SIFS + signal ext */  in ieee80211_frame_duration()
144 		dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */  in ieee80211_frame_duration()
145 		dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */  in ieee80211_frame_duration()
151 		dur *= 1 << shift;  in ieee80211_frame_duration()
156 		dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,  in ieee80211_frame_duration()
169 		dur = 10; /* aSIFSTime = 10 usec */  in ieee80211_frame_duration()
170 		dur += short_preamble ? (72 + 24) : (144 + 48);  in ieee80211_frame_duration()
172 		dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);  in ieee80211_frame_duration()
175 	return dur;  in ieee80211_frame_duration()
186 	u16 dur;  in ieee80211_generic_frame_duration()  local
199 	dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp,  in ieee80211_generic_frame_duration()
202 	return cpu_to_le16(dur);  in ieee80211_generic_frame_duration()
215 	u16 dur;  in ieee80211_rts_duration()  local
236 	dur = ieee80211_frame_duration(sband->band, 10, bitrate,  in ieee80211_rts_duration()
239 	dur += ieee80211_frame_duration(sband->band, frame_len, bitrate,  in ieee80211_rts_duration()
242 	dur += ieee80211_frame_duration(sband->band, 10, bitrate,  in ieee80211_rts_duration()
245 	return cpu_to_le16(dur);  in ieee80211_rts_duration()
259 	u16 dur;  in ieee80211_ctstoself_duration()  local
279 	dur = ieee80211_frame_duration(sband->band, frame_len, bitrate,  in ieee80211_ctstoself_duration()
283 		dur += ieee80211_frame_duration(sband->band, 10, bitrate,  in ieee80211_ctstoself_duration()
287 	return cpu_to_le16(dur);  in ieee80211_ctstoself_duration()