mac80211: do remain-on-channel while idle
The IDLE handling in HW off-channel is broken right
now since we turn off IDLE only when the off-channel
period already started. Therefore, all drivers that
use it today (only iwlwifi!) must support off-channel
while idle, so playing with idle isn't needed at all.
Off-channel in general, since it's no longer used for
authentication/association, shouldn't affect PS, so
also remove that logic.
Also document a small caveat for reporting TX status
from off-channel frames in HW remain-on-channel.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index d2ed86d..6e700bf 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2183,7 +2183,13 @@
* offload. Frames to transmit on the off-channel channel are transmitted
* normally except for the %IEEE80211_TX_CTL_TX_OFFCHAN flag. When the
* duration (which will always be non-zero) expires, the driver must call
- * ieee80211_remain_on_channel_expired(). This callback may sleep.
+ * ieee80211_remain_on_channel_expired().
+ * The driver must not call ieee80211_remain_on_channel_expired() before
+ * the TX status for a frame that was sent off-channel, otherwise the TX
+ * status is reported to userspace in an invalid way.
+ * Note that this callback may be called while the device is in IDLE and
+ * must be accepted in this case.
+ * This callback may sleep.
* @cancel_remain_on_channel: Requests that an ongoing off-channel period is
* aborted before it expires. This callback may sleep.
*