Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12

1 files changed, 0 insertions, 169 deletions

diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index a40da20..578eea3 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -21,175 +21,6 @@
 #include "sta_info.h"
 #include "wme.h"
 
-int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
-				 struct ieee802_11_elems *elems, bool beacon,
-				 enum ieee80211_band current_band,
-				 u32 sta_flags, u8 *bssid,
-				 struct ieee80211_csa_ie *csa_ie)
-{
-	enum ieee80211_band new_band;
-	int new_freq;
-	u8 new_chan_no;
-	struct ieee80211_channel *new_chan;
-	struct cfg80211_chan_def new_vht_chandef = {};
-	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
-	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
-	const struct ieee80211_ht_operation *ht_oper;
-	int secondary_channel_offset = -1;
-
-	sec_chan_offs = elems->sec_chan_offs;
-	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
-	ht_oper = elems->ht_operation;
-
-	if (sta_flags & (IEEE80211_STA_DISABLE_HT |
-			 IEEE80211_STA_DISABLE_40MHZ)) {
-		sec_chan_offs = NULL;
-		wide_bw_chansw_ie = NULL;
-		/* only used for bandwidth here */
-		ht_oper = NULL;
-	}
-
-	if (sta_flags & IEEE80211_STA_DISABLE_VHT)
-		wide_bw_chansw_ie = NULL;
-
-	if (elems->ext_chansw_ie) {
-		if (!ieee80211_operating_class_to_band(
-				elems->ext_chansw_ie->new_operating_class,
-				&new_band)) {
-			sdata_info(sdata,
-				   "cannot understand ECSA IE operating class %d, disconnecting\n",
-				   elems->ext_chansw_ie->new_operating_class);
-			return -EINVAL;
-		}
-		new_chan_no = elems->ext_chansw_ie->new_ch_num;
-		csa_ie->count = elems->ext_chansw_ie->count;
-		csa_ie->mode = elems->ext_chansw_ie->mode;
-	} else if (elems->ch_switch_ie) {
-		new_band = current_band;
-		new_chan_no = elems->ch_switch_ie->new_ch_num;
-		csa_ie->count = elems->ch_switch_ie->count;
-		csa_ie->mode = elems->ch_switch_ie->mode;
-	} else {
-		/* nothing here we understand */
-		return 1;
-	}
-
-	/* Mesh Channel Switch Parameters Element */
-	if (elems->mesh_chansw_params_ie) {
-		csa_ie->ttl = elems->mesh_chansw_params_ie->mesh_ttl;
-		csa_ie->mode = elems->mesh_chansw_params_ie->mesh_flags;
-	}
-
-	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
-	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
-	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
-		sdata_info(sdata,
-			   "BSS %pM switches to unsupported channel (%d MHz), disconnecting\n",
-			   bssid, new_freq);
-		return -EINVAL;
-	}
-
-	if (!beacon && sec_chan_offs) {
-		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
-	} else if (beacon && ht_oper) {
-		secondary_channel_offset =
-			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
-	} else if (!(sta_flags & IEEE80211_STA_DISABLE_HT)) {
-		/* If it's not a beacon, HT is enabled and the IE not present,
-		 * it's 20 MHz, 802.11-2012 8.5.2.6:
-		 *	This element [the Secondary Channel Offset Element] is
-		 *	present when switching to a 40 MHz channel. It may be
-		 *	present when switching to a 20 MHz channel (in which
-		 *	case the secondary channel offset is set to SCN).
-		 */
-		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-	}
-
-	switch (secondary_channel_offset) {
-	default:
-		/* secondary_channel_offset was present but is invalid */
-	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
-		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
-					NL80211_CHAN_HT20);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
-					NL80211_CHAN_HT40PLUS);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
-					NL80211_CHAN_HT40MINUS);
-		break;
-	case -1:
-		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
-					NL80211_CHAN_NO_HT);
-		/* keep width for 5/10 MHz channels */
-		switch (sdata->vif.bss_conf.chandef.width) {
-		case NL80211_CHAN_WIDTH_5:
-		case NL80211_CHAN_WIDTH_10:
-			csa_ie->chandef.width =
-				sdata->vif.bss_conf.chandef.width;
-			break;
-		default:
-			break;
-		}
-		break;
-	}
-
-	if (wide_bw_chansw_ie) {
-		new_vht_chandef.chan = new_chan;
-		new_vht_chandef.center_freq1 =
-			ieee80211_channel_to_frequency(
-				wide_bw_chansw_ie->new_center_freq_seg0,
-				new_band);
-
-		switch (wide_bw_chansw_ie->new_channel_width) {
-		default:
-			/* hmmm, ignore VHT and use HT if present */
-		case IEEE80211_VHT_CHANWIDTH_USE_HT:
-			new_vht_chandef.chan = NULL;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_160MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-			/* field is otherwise reserved */
-			new_vht_chandef.center_freq2 =
-				ieee80211_channel_to_frequency(
-					wide_bw_chansw_ie->new_center_freq_seg1,
-					new_band);
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
-			break;
-		}
-		if (sta_flags & IEEE80211_STA_DISABLE_80P80MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
-			ieee80211_chandef_downgrade(&new_vht_chandef);
-		if (sta_flags & IEEE80211_STA_DISABLE_160MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
-			ieee80211_chandef_downgrade(&new_vht_chandef);
-		if (sta_flags & IEEE80211_STA_DISABLE_40MHZ &&
-		    new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
-			ieee80211_chandef_downgrade(&new_vht_chandef);
-	}
-
-	/* if VHT data is there validate & use it */
-	if (new_vht_chandef.chan) {
-		if (!cfg80211_chandef_compatible(&new_vht_chandef,
-						 &csa_ie->chandef)) {
-			sdata_info(sdata,
-				   "BSS %pM: CSA has inconsistent channel data, disconnecting\n",
-				   bssid);
-			return -EINVAL;
-		}
-		csa_ie->chandef = new_vht_chandef;
-	}
-
-	return 0;
-}
-
 static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_msrment_ie *request_ie,
 					const u8 *da, const u8 *bssid,