From 586e01ededf9b713a1512dd658806791a7ca1a50 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Feb 2013 12:13:53 +0100
Subject: [PATCH] mac80211: prevent spurious HT/VHT downgrade message
Even when connecting to an AP that doesn't support VHT,
and even when the local device doesn't support it either,
the downgrade message gets printed. Suppress the message
if HT and/or VHT is disabled.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/mlme.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7a8cd789e4875..9f6464f3e05f9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -357,6 +357,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
ret = 0;
out:
+ /* don't print the message below for VHT mismatch if VHT is disabled */
+ if (ret & IEEE80211_STA_DISABLE_VHT)
+ vht_chandef = *chandef;
+
while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef,
IEEE80211_CHAN_DISABLED)) {
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
--
2.30.2