From e38f8a7a8bebbab9d97f204e2cf05ef58b048a1d Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Sat, 21 Feb 2009 00:20:39 -0500 Subject: cfg80211: Add AP beacon regulatory hints When devices are world roaming they cannot beacon or do active scan on 5 GHz or on channels 12, 13 and 14 on the 2 GHz band. Although we have a good regulatory API some cards may _always_ world roam, this is also true when a system does not have CRDA present. Devices doing world roaming can still passive scan, if they find a beacon from an AP on one of the world roaming frequencies we make the assumption we can do the same and we also remove the passive scan requirement. This adds support for providing beacon regulatory hints based on scans. This works for devices that do either hardware or software scanning. If a channel has not yet been marked as having had a beacon present on it we queue the beacon hint processing into the workqueue. All wireless devices will benefit from beacon regulatory hints from any wireless device on a system including new devices connected to the system at a later time. Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- net/wireless/scan.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/wireless/scan.c') diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 60600657b657..280dbcd02c15 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -430,6 +430,9 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy, if (!res) return NULL; + if (res->pub.capability & WLAN_CAPABILITY_ESS) + regulatory_hint_found_beacon(wiphy, channel, gfp); + /* cfg80211_bss_update gives us a referenced result */ return &res->pub; } -- cgit v1.2.3-59-g8ed1b