From 253216ffb2a002a682c6f68bd3adff5b98b71de8 Mon Sep 17 00:00:00 2001 From: Madhuparna Bhowmik Date: Sun, 23 Feb 2020 20:03:02 +0530 Subject: mac80211: rx: avoid RCU list traversal under mutex local->sta_mtx is held in __ieee80211_check_fast_rx_iface(). No need to use list_for_each_entry_rcu() as it also requires a cond argument to avoid false lockdep warnings when not used in RCU read-side section (with CONFIG_PROVE_RCU_LIST). Therefore use list_for_each_entry(); Signed-off-by: Madhuparna Bhowmik Link: https://lore.kernel.org/r/20200223143302.15390-1-madhuparnabhowmik10@gmail.com Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 0e05ff037672..0ba98ad9bc85 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -4114,7 +4114,7 @@ void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&local->sta_mtx); - list_for_each_entry_rcu(sta, &local->sta_list, list) { + list_for_each_entry(sta, &local->sta_list, list) { if (sdata != sta->sdata && (!sta->sdata->bss || sta->sdata->bss != sdata->bss)) continue; -- cgit v1.2.3