mac80211: backport upstream fix for CSA in IBSS mode

Allows to change channels on-the-fly using CSA when using IBSS.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
This commit is contained in:
Koen Vandeputte 2017-02-08 16:11:01 +01:00 committed by Felix Fietkau
parent 33154eaf41
commit 75216a76b0

View file

@ -0,0 +1,34 @@
From: Koen Vandeputte <koen.vandeputte@ncentric.com>
Date: Wed, 8 Feb 2017 15:29:45 +0100
Subject: [PATCH] mac80211: fix CSA in IBSS mode
MIME-Version: 1.0
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Add the missing IBSS capability flag during capability init as it needs
to be inserted into the generated beacon in order for CSA to work.
Signed-off-by: Piotr Gawlowicz <gawlowicz@tkn.tu-berlin.de>
Signed-off-by: Mikołaj Chwalisz <chwalisz@tkn.tu-berlin.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
---
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -487,14 +487,14 @@ int ieee80211_ibss_csa_beacon(struct iee
struct beacon_data *presp, *old_presp;
struct cfg80211_bss *cbss;
const struct cfg80211_bss_ies *ies;
- u16 capability = 0;
+ u16 capability = WLAN_CAPABILITY_IBSS;
u64 tsf;
int ret = 0;
sdata_assert_lock(sdata);
if (ifibss->privacy)
- capability = WLAN_CAPABILITY_PRIVACY;
+ capability |= WLAN_CAPABILITY_PRIVACY;
cbss = cfg80211_get_bss(sdata->local->hw.wiphy, ifibss->chandef.chan,
ifibss->bssid, ifibss->ssid,