mac80211: Allow scanning on existing channel-type.
Previous code set the channel type to NO_HT, but it
appears that NO_HT packets can be sent on any channel
type, so we do not need to change the channel type
as long as the channel is correct.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c155c0b..86562ce 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -112,7 +112,13 @@
/* This logic needs to match logic in ieee80211_hw_config */
if (local->scan_channel) {
chan = local->scan_channel;
- channel_type = NL80211_CHAN_NO_HT;
+ /* If scanning on oper channel, use whatever channel-type
+ * is currently in use.
+ */
+ if (chan == local->oper_channel)
+ channel_type = local->_oper_channel_type;
+ else
+ channel_type = NL80211_CHAN_NO_HT;
} else if (local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
@@ -151,7 +157,13 @@
offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
if (scan_chan) {
chan = scan_chan;
- channel_type = NL80211_CHAN_NO_HT;
+ /* If scanning on oper channel, use whatever channel-type
+ * is currently in use.
+ */
+ if (chan == local->oper_channel)
+ channel_type = local->_oper_channel_type;
+ else
+ channel_type = NL80211_CHAN_NO_HT;
} else if (local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 0ea6ada..0e70d7a 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -517,8 +517,7 @@
if (ieee80211_cfg_on_oper_channel(local)) {
/* We're currently on operating channel. */
- if ((next_chan == local->oper_channel) &&
- (local->_oper_channel_type == NL80211_CHAN_NO_HT))
+ if (next_chan == local->oper_channel)
/* We don't need to move off of operating channel. */
local->next_scan_state = SCAN_SET_CHANNEL;
else
@@ -620,8 +619,7 @@
local->scan_channel = chan;
/* Only call hw-config if we really need to change channels. */
- if ((chan != local->hw.conf.channel) ||
- (local->hw.conf.channel_type != NL80211_CHAN_NO_HT))
+ if (chan != local->hw.conf.channel)
if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL))
skip = 1;