diff mbox series

[25/28] wifi: mac80211: prohibit IEEE80211_HT_CAP_DELAY_BA with MLO

Message ID 20221005145226.0381d8226a14.I13b8b159cb3ef31f9718447c81be8f975db2b313@changeid
State New
Headers show
Series wifi: further MLO work | expand

Commit Message

Johannes Berg Oct. 5, 2022, 1 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

This won't work right at least with the code as it is, so
at least for now just assume it's never set for MLO. It may
very well never change, almost no drivers support it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 25e72812000e..425793dd7c9c 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1087,6 +1087,16 @@  int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 		channels += sband->n_channels;
 
+		/*
+		 * Due to the way the aggregation code handles this and it
+		 * being an HT capability, we can't really support delayed
+		 * BA in MLO (yet).
+		 */
+		if (WARN_ON(sband->ht_cap.ht_supported &&
+			    (sband->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA) &&
+			    hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
+			return -EINVAL;
+
 		if (max_bitrates < sband->n_bitrates)
 			max_bitrates = sband->n_bitrates;
 		supp_ht = supp_ht || sband->ht_cap.ht_supported;