Messages in this thread Patch in this message | | | From | madhuparnabhowmik10@gmail ... | Subject | [PATCH 3/4] net: mac80211: sta_info.c: Add lockdep condition for RCU list usage | Date | Thu, 9 Apr 2020 13:59:06 +0530 |
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From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
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> --- net/mac80211/sta_info.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f8d5c2515829..cd8487bc6fc2 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -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) { -- 2.17.1
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