[PATCH 6.4 147/800] wifi: mac80211: recalc min chandef for new STA links

Greg Kroah-Hartman
2023-07-16T20:00:58Z

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit ba7af2654e3b7b810c750b3c6106f6f20b81cc88 ]

When adding a new link to a station, this needs to cause a
recalculation of the minimum chandef since otherwise we can
have a higher bandwidth station connected on that link than
the link is operating at. Do the appropriate recalc.

Fixes: cb71f1d136a6 ("wifi: mac80211: add sta link addition/removal")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230604120651.377adf3c789a.I91bf28f399e16e6ac1f83bacd1029a698b4e6685@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/sta_info.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 1400512e0dde5..a1cd5c234f47e 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2913,6 +2913,8 @@ int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id)
if (!test_sta_flag(sta, WLAN_STA_INSERTED))
goto hash;

+ ieee80211_recalc_min_chandef(sdata, link_id);
+
/* Ensure the values are updated for the driver,
* redone by sta_remove_link on failure.
*/
--
2.39.2