Commit 8ca47eb9 authored Apr 09, 2020 by Madhuparna Bhowmik Committed by Johannes Berg Apr 24, 2020

mac80211: sta_info: Add lockdep condition for RCU list usage

The function sta_info_get_by_idx() uses RCU list primitive.
It is called with local->sta_mtx held from mac80211/cfg.c.
Add lockdep expression to avoid any false positive RCU list warnings.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Link: https://lore.kernel.org/r/20200409082906.27427-1-madhuparnabhowmik10@gmail.com

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 6cb5f3ea

net/mac80211/sta_info.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -231,7 +231,8 @@ struct sta_info sta_info_get_by_idx(struct ieee80211_sub_if_data sdata,
		struct sta_info *sta;
		int i = 0;

		list_for_each_entry_rcu(sta, &local->sta_list, list) {
		list_for_each_entry_rcu(sta, &local->sta_list, list,
		lockdep_is_held(&local->sta_mtx)) {
		if (sdata != sta->sdata)
		continue;
		if (i < idx) {