From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 23 Jul 2012 12:29:21 +0000 (+0200)
Subject: mac80211: use oper_channel in utils and config
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=679ef4eadde1f8e55074427c0d8de2da55ca81f9;p=openwrt%2Fstaging%2Fblogic.git

mac80211: use oper_channel in utils and config

Using hw.conf.channel is wrong as it could be the
temporary channel if any function like the beacon
get function is called while scanning or during
other temporary out-of-channel activities.

Use oper_channel instead.

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

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 06b8d39780e9..1b8d19112943 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -330,7 +330,7 @@ static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, in
 	if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
 		struct ieee80211_supported_band *sband;
 		sband = sta->local->hw.wiphy->bands[
-				sta->local->hw.conf.channel->band];
+				sta->local->oper_channel->band];
 		rate->legacy = sband->bitrates[idx].bitrate;
 	} else
 		rate->mcs = idx;
@@ -1662,7 +1662,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	}
 
 	if (!sdata->vif.bss_conf.use_short_slot &&
-	    sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
+	    sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
 		sdata->vif.bss_conf.use_short_slot = true;
 		changed |= BSS_CHANGED_ERP_SLOT;
 	}
@@ -1928,7 +1928,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
 				  enum nl80211_tx_power_setting type, int mbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_channel *chan = local->hw.conf.channel;
+	struct ieee80211_channel *chan = local->oper_channel;
 	u32 changes = 0;
 
 	switch (type) {
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index bfb57dcc1538..fc8ba83e2c33 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1274,7 +1274,7 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 	/* reset some values that shouldn't be kept across type changes */
 	sdata->vif.bss_conf.basic_rates =
 		ieee80211_mandatory_rates(sdata->local,
-			sdata->local->hw.conf.channel->band);
+			sdata->local->oper_channel->band);
 	sdata->drop_unencrypted = 0;
 	if (type == NL80211_IFTYPE_STATION)
 		sdata->u.mgd.use_4addr = false;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 037d148e9f19..39005eca1a59 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -832,7 +832,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 
 	memset(&qparam, 0, sizeof(qparam));
 
-	use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
+	use_11b = (local->oper_channel->band == IEEE80211_BAND_2GHZ) &&
 		 !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
 
 	/*
@@ -919,7 +919,7 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 		if ((supp_rates[i] & 0x7f) * 5 > 110)
 			have_higher_than_11mbit = 1;
 
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
 	    have_higher_than_11mbit)
 		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
 	else