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| author | Sara Sharon <sara.sharon@intel.com> | 2016-01-25 15:46:35 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-02-24 09:04:27 +0100 |
| commit | d321cd014e51baab475efbdec468255b9e0ec822 (patch) | |
| tree | da69c64e900b89327966ad209abcf5260c217497 | |
| parent | f4a0f0c5264e72d9279fbf9cf48a061526e8f788 (diff) | |
| download | linux-stable-d321cd014e51baab475efbdec468255b9e0ec822.tar.gz linux-stable-d321cd014e51baab475efbdec468255b9e0ec822.tar.bz2 linux-stable-d321cd014e51baab475efbdec468255b9e0ec822.zip | |
mac80211: fix ibss scan parameters
When joining IBSS a full scan should be initiated in order to search
for existing cell, unless the fixed_channel parameter was set.
A default channel to create the IBSS on if no cell was found is
provided as well.
However - a scan is initiated only on the default channel provided
regardless of whether ifibss->fixed_channel is set or not, with the
obvious result of the cell not joining existing IBSS cell that is
on another channel.
Fixes: 76bed0f43b27 ("mac80211: IBSS fix scan request")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/ibss.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index e5e8a317b865..9b983788ee51 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -7,6 +7,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2009, Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH + * Copyright(c) 2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1483,14 +1484,21 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) sdata_info(sdata, "Trigger new scan to find an IBSS to join\n"); - num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy, - &ifibss->chandef, - channels, - ARRAY_SIZE(channels)); scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef); - ieee80211_request_ibss_scan(sdata, ifibss->ssid, - ifibss->ssid_len, channels, num, - scan_width); + + if (ifibss->fixed_channel) { + num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy, + &ifibss->chandef, + channels, + ARRAY_SIZE(channels)); + ieee80211_request_ibss_scan(sdata, ifibss->ssid, + ifibss->ssid_len, channels, + num, scan_width); + } else { + ieee80211_request_ibss_scan(sdata, ifibss->ssid, + ifibss->ssid_len, NULL, + 0, scan_width); + } } else { int interval = IEEE80211_SCAN_INTERVAL; |