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Date: Sat,  1 Jun 2019 18:27:34 -0400
From: "Joel Fernandes (Google)" <joel@...lfernandes.org>
To: linux-kernel@...r.kernel.org
Cc: "Joel Fernandes (Google)" <joel@...lfernandes.org>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Borislav Petkov <bp@...en8.de>,
	"David S. Miller" <davem@...emloft.net>,
	edumazet@...gle.com,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...hat.com>,
	Josh Triplett <josh@...htriplett.org>,
	keescook@...omium.org,
	kernel-hardening@...ts.openwall.com,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Len Brown <lenb@...nel.org>,
	linux-acpi@...r.kernel.org,
	linux-pci@...r.kernel.org,
	linux-pm@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	neilb@...e.com,
	netdev@...r.kernel.org,
	oleg@...hat.com,
	"Paul E. McKenney" <paulmck@...ux.ibm.com>,
	Pavel Machek <pavel@....cz>,
	peterz@...radead.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	rcu@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Tejun Heo <tj@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT))
Subject: [RFC 2/6] ipv4: add lockdep condition to fix for_each_entry

Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
---
 net/ipv4/fib_frontend.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index b298255f6fdb..ef7c9f8e8682 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -127,7 +127,8 @@ struct fib_table *fib_get_table(struct net *net, u32 id)
 	h = id & (FIB_TABLE_HASHSZ - 1);
 
 	head = &net->ipv4.fib_table_hash[h];
-	hlist_for_each_entry_rcu(tb, head, tb_hlist) {
+	hlist_for_each_entry_rcu(tb, head, tb_hlist,
+				 lockdep_rtnl_is_held()) {
 		if (tb->tb_id == id)
 			return tb;
 	}
-- 
2.22.0.rc1.311.g5d7573a151-goog

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