wifi: nl80211: completely disable per-link stats for now

After commit 8cc71fc3b82b ("wifi: cfg80211: Fix "no buffer
space available" error in nl80211_get_station() for MLO"),
the per-link data is only included in station dumps, where
the size limit is somewhat less of an issue. However, it's
still an issue, depending on how many links a station has
and how much per-link data there is. Thus, for now, disable
per-link statistics entirely.

A complete fix will need to take this into account, make it
opt-in by userspace, and change the dump format to be able
to split a single station's data across multiple netlink
dump messages, which all together is too much development
for a fix.

Fixes: 82d7f841d9bd ("wifi: cfg80211: extend to embed link level statistics in NL message")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f2f7424e930cc134f504c69d8b17544c31955687..852573423e52d1a8f6b2145003b76d8599dc5e2b 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7575,7 +7575,7 @@ static int nl80211_dump_station(struct sk_buff *skb,
                                NETLINK_CB(cb->skb).portid,
                                cb->nlh->nlmsg_seq, NLM_F_MULTI,
                                rdev, wdev->netdev, mac_addr,
-                               &sinfo, true) < 0)
+                               &sinfo, false) < 0)
                        goto out;
 
                sta_idx++;