mac80211: TDLS: always downgrade invalid chandefs
Even if the current chandef width is equal to the station's max-BW, it
doesn't mean it's a valid width for TDLS. Make sure to always check
regulatory constraints in these cases.
Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible")
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index c9eeb3f..43f13abe 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -332,7 +332,7 @@
return;
/* proceed to downgrade the chandef until usable or the same */
- while (uc.width > max_width &&
+ while (uc.width > max_width ||
!cfg80211_reg_can_beacon_relax(sdata->local->hw.wiphy, &uc,
sdata->wdev.iftype))
ieee80211_chandef_downgrade(&uc);