[ 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@xxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
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
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