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authorIlan Peer <ilan.peer@intel.com>2016-03-08 13:35:31 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-10 10:26:05 +0200
commit9d533ad6b6598bcb508e9d01ab22f809e4f46c45 (patch)
treea342f04c3ce60c9bbfcba863e9f05e705263f987 /net
parent37e333d209ec41460c5bb4901a2d75a7b7e1ac9e (diff)
mac80211: Fix BW upgrade for TDLS peers
commit 4b559ec0bfc3a9f41a127cea6964f38b2b4bb323 upstream. It is possible that the station is connected to an AP with bandwidth of 80+80MHz or 160MHz. In such cases there is no need to perform an upgrade as the maximal supported bandwidth is 80MHz. In addition, when upgrading and setting center_freq1 and bandwidth to 80MHz also set center_freq2 to 0. Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible" Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/tdls.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 3f30e10de75d..ef6bde9b4ef9 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -314,7 +314,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
if (max_width > NL80211_CHAN_WIDTH_80)
max_width = NL80211_CHAN_WIDTH_80;
- if (uc.width == max_width)
+ if (uc.width >= max_width)
return;
/*
* Channel usage constrains in the IEEE802.11ac-2013 specification only
@@ -325,6 +325,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
for (i = 0; i < ARRAY_SIZE(centers_80mhz); i++)
if (abs(uc.chan->center_freq - centers_80mhz[i]) <= 30) {
uc.center_freq1 = centers_80mhz[i];
+ uc.center_freq2 = 0;
uc.width = NL80211_CHAN_WIDTH_80;
break;
}