mac80211: inform drivers about the off-channel status on channel changes
For some drivers it can be useful to know whether the channel they're
supposed to switch to is going to be used for short off-channel work or
scanning, or whether the hardware is expected to stay on it for a while
longer. This is important for various kinds of calibration work, which
takes longer to complete and should keep some persistent state, even if
the channel temporarily changes.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 0e95c75..7cc4f91 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -107,12 +107,15 @@
if (scan_chan) {
chan = scan_chan;
channel_type = NL80211_CHAN_NO_HT;
+ local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
} else if (local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
+ local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
} else {
chan = local->oper_channel;
channel_type = local->_oper_channel_type;
+ local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
}
if (chan != local->hw.conf.channel ||