diff options
| author | Jouni Malinen <j@w1.fi> | 2010-08-28 19:37:51 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-09-24 15:54:28 -0400 |
| commit | 651b52254fc061f02d965524e71de4333a009a5a (patch) | |
| tree | 5eb085461cc417ca32fe7a8a13f52b231030be86 /net/mac80211/scan.c | |
| parent | 8dcb20038ade81f9a87c024e7f12ec74f0e95f33 (diff) | |
mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz
IEEE Std 802.11k-2008 added DS Parameter Set information element into
Probe Request frames as an optional information on 2.4 GHz band (and
mandatory, if radio measurements are enabled). This allows APs to
filter out Probe Request frames that may be received from neighboring
overlapping channels and by doing so, reduce the number of unnecessary
frames in the air. Make mac80211 add this IE into Probe Request frames
whenever the channel is known (i.e., whenever hwscan is not used).
Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/scan.c')
| -rw-r--r-- | net/mac80211/scan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 1623e9d2086e..5171a9581631 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -242,7 +242,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) local->hw_scan_req->n_channels = n_chans; ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie, - req->ie, req->ie_len, band, (u32) -1); + req->ie, req->ie_len, band, (u32) -1, + 0); local->hw_scan_req->ie_len = ielen; return true; |