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[04/19] wifi: mac80211: reject per-band vendor elements with MLO

Message ID 20250101070249.bb82d3aaf6ef.Ib30573d0666430a3d7a905e513dfc661edf0bf65@changeid
State New
Headers show
Series wifi: mac80211: updates - 30-12-24 | expand

Commit Message

Miri Korenblit Jan. 1, 2025, 5:05 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

The MLME code doesn't currently handle adding vendor elements
correctly with multi-link due to element inheritance. Simply
prevent that for now completely, if someone needs it we can
fix this later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 net/mac80211/main.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index f13c14fa82e8..53e5aee46885 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1310,6 +1310,11 @@  int ieee80211_register_hw(struct ieee80211_hw *hw)
 			    sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
 			    !(iftd->he_cap.he_cap_elem.phy_cap_info[0] & he_40_mhz_cap))
 				return -EINVAL;
+
+			/* no support for per-band vendor elems with MLO */
+			if (WARN_ON(iftd->vendor_elems.len &&
+				    hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
+				return -EINVAL;
 		}
 
 		/* HT, VHT, HE require QoS, thus >= 4 queues */