From: madhuparnabhowmik10@gmail.com
To: paul@paul-moore.com, davem@davemloft.net
Cc: netdev@vger.kernel.org, linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org, joel@joelfernandes.org,
frextrite@gmail.com,
linux-kernel-mentees@lists.linuxfoundation.org,
paulmck@kernel.org,
Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Subject: [PATCH] net: netlabel: Use built-in RCU list checking
Date: Tue, 18 Feb 2020 23:47:18 +0530 [thread overview]
Message-ID: <20200218181718.7258-1-madhuparnabhowmik10@gmail.com> (raw)
From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
list_for_each_entry_rcu() has built-in RCU and lock checking.
Pass cond argument to list_for_each_entry_rcu() to silence
false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled
by default.
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
---
net/netlabel/netlabel_unlabeled.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index d2e4ab8d1cb1..77bb1bb22c3b 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -207,7 +207,8 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface(int ifindex)
bkt = netlbl_unlhsh_hash(ifindex);
bkt_list = &netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->tbl[bkt];
- list_for_each_entry_rcu(iter, bkt_list, list)
+ list_for_each_entry_rcu(iter, bkt_list, list,
+ lockdep_is_held(&netlbl_unlhsh_lock))
if (iter->valid && iter->ifindex == ifindex)
return iter;
--
2.17.1
next reply other threads:[~2020-02-18 18:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-18 18:17 madhuparnabhowmik10 [this message]
2020-02-18 20:43 ` [PATCH] net: netlabel: Use built-in RCU list checking David Miller
2020-02-18 22:48 ` Paul Moore
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