From 3abc05d9ef6fe989706b679e1e6371d6360d3db4 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 4 Feb 2021 15:23:30 -0800
Subject: mptcp: pm: add lockdep assertions

Add a few assertions to make sure functions are called with the needed
locks held.
Two functions gain might_sleep annotations because they contain
conditional calls to functions that sleep.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/mptcp/pm.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'net/mptcp/pm.c')

diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 3a22e73220b9..1a25003fd8e3 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -20,6 +20,8 @@ int mptcp_pm_announce_addr(struct mptcp_sock *msk,
 
 	pr_debug("msk=%p, local_id=%d", msk, addr->id);
 
+	lockdep_assert_held(&msk->pm.lock);
+
 	if (add_addr) {
 		pr_warn("addr_signal error, add_addr=%d", add_addr);
 		return -EINVAL;
-- 
cgit v1.2.3