mac80211: remove unused IE pointers from parser

There's no need to parse IEs that aren't used
so just remove them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/ieee80211_i.h

@@ -1157,11 +1157,8 @@ struct ieee802_11_elems {
 	/* pointers to IEs */
 	const u8 *ssid;
 	const u8 *supp_rates;
-	const u8 *fh_params;
 	const u8 *ds_params;
-	const u8 *cf_params;
 	const struct ieee80211_tim_ie *tim;
-	const u8 *ibss_params;
 	const u8 *challenge;
 	const u8 *rsn;
 	const u8 *erp_info;
@@ -1183,18 +1180,14 @@ struct ieee802_11_elems {
 	const struct ieee80211_channel_sw_ie *ch_switch_ie;
 	const u8 *country_elem;
 	const u8 *pwr_constr_elem;
-	const u8 *quiet_elem;	/* first quite element */
 	const u8 *timeout_int;
 	const u8 *opmode_notif;
 
 	/* length of them, respectively */
 	u8 ssid_len;
 	u8 supp_rates_len;
-	u8 fh_params_len;
 	u8 ds_params_len;
-	u8 cf_params_len;
 	u8 tim_len;
-	u8 ibss_params_len;
 	u8 challenge_len;
 	u8 rsn_len;
 	u8 erp_info_len;
@@ -1207,8 +1200,6 @@ struct ieee802_11_elems {
 	u8 prep_len;
 	u8 perr_len;
 	u8 country_elem_len;
-	u8 quiet_elem_len;
-	u8 num_of_quiet_elem;	/* can be more the one */
 	u8 timeout_int_len;
 
 	/* whether a parse error occurred while retrieving these elements */

net/mac80211/util.c

@@ -738,29 +738,17 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
 			elems->supp_rates = pos;
 			elems->supp_rates_len = elen;
 			break;
-		case WLAN_EID_FH_PARAMS:
-			elems->fh_params = pos;
-			elems->fh_params_len = elen;
-			break;
 		case WLAN_EID_DS_PARAMS:
 			elems->ds_params = pos;
 			elems->ds_params_len = elen;
 			break;
-		case WLAN_EID_CF_PARAMS:
-			elems->cf_params = pos;
-			elems->cf_params_len = elen;
-			break;
 		case WLAN_EID_TIM:
 			if (elen >= sizeof(struct ieee80211_tim_ie)) {
 				elems->tim = (void *)pos;
 				elems->tim_len = elen;
 			} else
 				elem_parse_failed = true;
 			break;
-		case WLAN_EID_IBSS_PARAMS:
-			elems->ibss_params = pos;
-			elems->ibss_params_len = elen;
-			break;
 		case WLAN_EID_CHALLENGE:
 			elems->challenge = pos;
 			elems->challenge_len = elen;
@@ -870,13 +858,6 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
 			}
 			elems->ch_switch_ie = (void *)pos;
 			break;
-		case WLAN_EID_QUIET:
-			if (!elems->quiet_elem) {
-				elems->quiet_elem = pos;
-				elems->quiet_elem_len = elen;
-			}
-			elems->num_of_quiet_elem++;
-			break;
 		case WLAN_EID_COUNTRY:
 			elems->country_elem = pos;
 			elems->country_elem_len = elen;