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>

parent 932dd97c

net/mac80211/mlme.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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)) {