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Date: Fri, 21 Feb 2020 21:49:47 +0530 From: madhuparnabhowmik10@...il.com To: davem@...emloft.net, gregkh@...uxfoundation.org, tglx@...utronix.de, allison@...utok.net Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, joel@...lfernandes.org, frextrite@...il.com, linux-kernel-mentees@...ts.linuxfoundation.org, paulmck@...nel.org, Madhuparna Bhowmik <madhuparnabhowmik10@...il.com> Subject: [PATCH] net: 802: psnap.c: Use built-in RCU list checking From: Madhuparna Bhowmik <madhuparnabhowmik10@...il.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@...il.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
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