From 651b52254fc061f02d965524e71de4333a009a5a Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Sat, 28 Aug 2010 19:37:51 +0300 Subject: 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 Acked-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ieee80211_i.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/mac80211/ieee80211_i.h') diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3641563d90f8..78a8d9208cec 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1256,7 +1256,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, const u8 *key, u8 key_len, u8 key_idx); int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, const u8 *ie, size_t ie_len, - enum ieee80211_band band, u32 rate_mask); + enum ieee80211_band band, u32 rate_mask, + u8 channel); void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, const u8 *ssid, size_t ssid_len, const u8 *ie, size_t ie_len); -- cgit v1.2.2