From: madhuparnabhowmik10@gmail.com To: davem@davemloft.net, gregkh@linuxfoundation.org, tglx@linutronix.de, allison@lohutok.net Cc: netdev@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: 802: psnap.c: Use built-in RCU list checking Date: Fri, 21 Feb 2020 21:49:47 +0530 [thread overview] Message-ID: <20200221161947.11536-1-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/802/psnap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/802/psnap.c b/net/802/psnap.c index 40ab2aea7b31..4492e8d7ad20 100644 --- a/net/802/psnap.c +++ b/net/802/psnap.c @@ -30,7 +30,7 @@ static struct datalink_proto *find_snap_client(const unsigned char *desc) { struct datalink_proto *proto = NULL, *p; - list_for_each_entry_rcu(p, &snap_list, node) { + list_for_each_entry_rcu(p, &snap_list, node, lockdep_is_held(&snap_lock)) { if (!memcmp(p->type, desc, 5)) { proto = p; break; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: madhuparnabhowmik10@gmail.com To: davem@davemloft.net, gregkh@linuxfoundation.org, tglx@linutronix.de, allison@lohutok.net Cc: paulmck@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>, joel@joelfernandes.org, linux-kernel-mentees@lists.linuxfoundation.org Subject: [Linux-kernel-mentees] [PATCH] net: 802: psnap.c: Use built-in RCU list checking Date: Fri, 21 Feb 2020 21:49:47 +0530 [thread overview] Message-ID: <20200221161947.11536-1-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/802/psnap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/802/psnap.c b/net/802/psnap.c index 40ab2aea7b31..4492e8d7ad20 100644 --- a/net/802/psnap.c +++ b/net/802/psnap.c @@ -30,7 +30,7 @@ static struct datalink_proto *find_snap_client(const unsigned char *desc) { struct datalink_proto *proto = NULL, *p; - list_for_each_entry_rcu(p, &snap_list, node) { + list_for_each_entry_rcu(p, &snap_list, node, lockdep_is_held(&snap_lock)) { if (!memcmp(p->type, desc, 5)) { proto = p; break; -- 2.17.1 _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees
next reply other threads:[~2020-02-21 16:21 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-21 16:19 madhuparnabhowmik10 [this message] 2020-02-21 16:19 ` [Linux-kernel-mentees] [PATCH] net: 802: psnap.c: Use built-in RCU list checking madhuparnabhowmik10 2020-02-24 21:03 ` David Miller 2020-02-24 21:03 ` [Linux-kernel-mentees] " David Miller
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