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authorEliad Peller <eliad@wizery.com>2012-02-02 17:44:55 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-02-06 14:55:51 -0500
commit885bd8eca6ac172e299750d99bd5c9fddbed89b9 (patch)
tree7ce2265d4738f6ea1f40f13d86d96c150bef73cf /net/mac80211/main.c
parent3dc5e1751803e812806d7aa46150af92f91ef489 (diff)
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 <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/main.c')
-rw-r--r--net/mac80211/main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 362e89d6d46..831a5bd44fd 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;