int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
				 struct ieee802_11_elems *elems,
				 enum nl80211_band current_band,
				 u32 vht_cap_info,
				 ieee80211_conn_flags_t conn_flags, u8 *bssid,
				 struct ieee80211_csa_ie *csa_ie)
int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
				 struct ieee802_11_elems *elems,
				 enum nl80211_band current_band,
				 u32 vht_cap_info,
				 struct ieee80211_conn_settings *conn,
				 u8 *bssid,
				 struct ieee80211_csa_ie *csa_ie)