From: madhuparnabhowmik10@gmail.com
To: johannes@sipsolutions.net, davem@davemloft.net, kuba@kernel.org
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, frextrite@gmail.com,
joel@joelfernandes.org, paulmck@kernel.org,
linux-kernel-mentees@lists.linuxfoundation.org,
Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Subject: [PATCH 4/4] net: mac80211: mlme.c: Add lockdep condition for RCU list usage
Date: Thu, 9 Apr 2020 13:59:25 +0530 [thread overview]
Message-ID: <20200409082925.27481-1-madhuparnabhowmik10@gmail.com> (raw)
From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
ieee80211_add_vht_ie() is called with sdata->wdev.mtx held from
ieee80211_send_assoc(). Add lockdep condition to avoid false positive
warnings.
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
---
net/mac80211/mlme.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 16d75da0996a..ef64b3e91ce6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -590,7 +590,8 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
bool disable_mu_mimo = false;
struct ieee80211_sub_if_data *other;
- list_for_each_entry_rcu(other, &local->interfaces, list) {
+ list_for_each_entry_rcu(other, &local->interfaces, list,
+ lockdep_is_held(&sdata->wdev.mtx)) {
if (other->vif.mu_mimo_owner) {
disable_mu_mimo = true;
break;
--
2.17.1
next reply other threads:[~2020-04-09 8:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-09 8:29 madhuparnabhowmik10 [this message]
2020-04-24 9:24 ` [PATCH 4/4] net: mac80211: mlme.c: Add lockdep condition for RCU list usage Johannes Berg
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