From be4a4b6a5d2f76393f545a2545fbaa1b65577e13 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 3 May 2010 08:49:48 +0200 Subject: mac80211: improve IBSS scanning When IBSS is fixed to a frequency, it can still scan to try to find the right BSSID. This makes sense if the BSSID isn't also fixed, but it need not scan all channels -- just one is sufficient. Make it do that by moving the scan setup code to ieee80211_request_internal_scan() and include a channel variable setting. Note that this can be further improved to start the IBSS right away if both frequency and BSSID are fixed. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ibss.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'net/mac80211/ibss.c') diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index c585fced8584..ba752362b2b2 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -488,7 +488,9 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other " "IBSS networks with same SSID (merge)\n", sdata->name); - ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len); + ieee80211_request_internal_scan(sdata, + ifibss->ssid, ifibss->ssid_len, + ifibss->fixed_channel ? ifibss->channel : NULL); } static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) @@ -595,8 +597,9 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to " "join\n", sdata->name); - ieee80211_request_internal_scan(sdata, ifibss->ssid, - ifibss->ssid_len); + ieee80211_request_internal_scan(sdata, + ifibss->ssid, ifibss->ssid_len, + ifibss->fixed_channel ? ifibss->channel : NULL); } else { int interval = IEEE80211_SCAN_INTERVAL; -- cgit v1.2.3