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mac80211: prevent spurious HT/VHT downgrade message

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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>
This commit is contained in:
Johannes Berg
2013-02-14 12:13:53 +01:00
parent 932dd97c5f
commit 586e01eded
1 changed files with 4 additions and 0 deletions
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4
net/mac80211/mlme.c
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@ -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)) {