[PATCH RT 7/6] rcu: Do not include rtmutex_common.h unconditionally

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

[ 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>
---

Without this one we get build failures for RCU_BOOST=n. It would make
sense to apply this one before

   [PATCH 6/6] rcu: Suppress lockdep false-positive ->boost_mtx complaints

 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 ce069b37d961..d97eedd9c6d4 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 */
 
@@ -828,8 +829,6 @@ 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)
-- 
2.18.0