tegrakernel/kernel/kernel-4.9/rt-patches/0348-rcu-Do-not-include-rtm...

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From 7ae2b72f322e9edceac43a2052d518033daa916d Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 9 Jul 2018 11:58:08 +0200
Subject: [PATCH 348/365] rcu: Do not include rtmutex_common.h unconditionally
[ upstream commit b88697810d7c1d102a529990f9071b0f14cfe6df ]
This commit adjusts include files and provides definitions in preparation
for suppressing lockdep false-positive ->boost_mtx complaints. Without
this preparation, architectures not supporting rt_mutex will get build
failures.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Julia Cartwright <julia@ni.com>
---
kernel/rcu/tree_plugin.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index a1a7bafcce15..3d18d08e8382 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -37,6 +37,7 @@
* This probably needs to be excluded from -rt builds.
*/
#define rt_mutex_owner(a) ({ WARN_ON_ONCE(1); NULL; })
+#define rt_mutex_futex_unlock(x) WARN_ON_ONCE(1)
#endif /* #else #ifdef CONFIG_RCU_BOOST */
@@ -834,8 +835,6 @@ static void rcu_cpu_kthread_setup(unsigned int cpu)
#ifdef CONFIG_RCU_BOOST
-#include "../locking/rtmutex_common.h"
-
#ifdef CONFIG_RCU_TRACE
static void rcu_initiate_boost_trace(struct rcu_node *rnp)
--
2.28.0