diff mbox series

[15/31] mac80211: conditionally advertise HE in probe requests

Message ID iwlwifi.20210618133832.b5513f2af335.Ic01862678712ae4238cea43ad2185928865efad2@changeid
State New
Headers show
Series cfg80211/mac80211 patches from our internal tree 2021-06-18 | expand

Commit Message

Luca Coelho June 18, 2021, 10:41 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

While building probe requests, only enable HE capability if
there are actually any channels in the band with HE enabled,
otherwise we're not really capable. We're doing the same in
association requests, so doing it here makes it consistent.

This also makes HE not appear available if it isn't due to
regulatory constraints.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 net/mac80211/util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0f6fd90f6696..22cab76a9c2f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1938,7 +1938,9 @@  static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
 	}
 
 	he_cap = ieee80211_get_he_sta_cap(sband);
-	if (he_cap) {
+	if (he_cap &&
+	    cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
+					 IEEE80211_CHAN_NO_HE)) {
 		pos = ieee80211_ie_build_he_cap(pos, he_cap, end);
 		if (!pos)
 			goto out_err;