From 885bd8eca6ac172e299750d99bd5c9fddbed89b9 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Thu, 2 Feb 2012 17:44:55 +0200 Subject: mac80211: support hw scan while idle Currently, mac80211 goes to idle-off before starting a scan. However, some devices that implement hw scan might not need going idle-off in order to perform a hw scan, and thus saving some energy and simplifying their state machine. (Note that this is also the case for sched scan - it currently doesn't make mac80211 go idle-off) Add a new flag to indicate support for hw scan while idle. Signed-off-by: Eliad Peller Signed-off-by: John W. Linville --- net/mac80211/main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/mac80211/main.c') diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 362e89d6d467..831a5bd44fd0 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -697,6 +697,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ) return -EINVAL; + if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) + return -EINVAL; + if (hw->max_report_rates == 0) hw->max_report_rates = hw->max_rates; -- cgit v1.2.3