58 lines
2.1 KiB
Diff
58 lines
2.1 KiB
Diff
From: Sara Sharon <sara.sharon@intel.com>
|
|
Date: Mon, 25 Jan 2016 15:46:35 +0200
|
|
Subject: [PATCH] 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>
|
|
---
|
|
|
|
--- 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(stru
|
|
|
|
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;
|
|
|