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wifi: mac80211: fix RCU usage warning in mesh fast-xmit

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[ Upstream commit 5ea82df1f50e42416d0a8a7c42d37cc1df1545fe ]

In mesh_fast_tx_flush_addr() we already hold the lock, so
don't need additional hashtable RCU protection. Use the
rhashtable_lookup_fast() variant to avoid RCU protection
warnings.

Fixes: d5edb9ae8d56 ("wifi: mac80211: mesh fast xmit support")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg 2023-09-11 11:57:52 +02:00 committed by Greg Kroah-Hartman
parent e114cad74b
commit 2c1d8b0468
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/mesh_pathtbl.c
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@ -648,7 +648,7 @@ void mesh_fast_tx_flush_addr(struct ieee80211_sub_if_data *sdata,
cache = &sdata->u.mesh.tx_cache;
spin_lock_bh(&cache->walk_lock);
entry = rhashtable_lookup(&cache->rht, addr, fast_tx_rht_params);
entry = rhashtable_lookup_fast(&cache->rht, addr, fast_tx_rht_params);
if (entry)
mesh_fast_tx_entry_free(cache, entry);
spin_unlock_bh(&cache->walk_lock);