[PATCH 6/8] hrtimer: Explicitly include some necessary headers in hrtimer_rearm.h

["Thomas Weißschuh (Schneider Electric)" <thomas.weissschuh@linutronix.de>]

Multiple used types and symbols are only visible through transitive
dependency chains.

Include the headers explicitly as those chains are going to go away.

Signed-off-by: Thomas Weißschuh (Schneider Electric) <thomas.weissschuh@linutronix.de>
---
 include/linux/hrtimer_rearm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/hrtimer_rearm.h b/include/linux/hrtimer_rearm.h
index a6f2e5d5e1c7..17a81826bd9a 100644
--- a/include/linux/hrtimer_rearm.h
+++ b/include/linux/hrtimer_rearm.h
@@ -2,7 +2,12 @@
 #ifndef _LINUX_HRTIMER_REARM_H
 #define _LINUX_HRTIMER_REARM_H
 
+#include <linux/types.h>
+
 #ifdef CONFIG_HRTIMER_REARM_DEFERRED
+#include <linux/irqflags.h>
+#include <linux/lockdep.h>
+#include <linux/preempt.h>
 #include <linux/thread_info.h>
 
 void __hrtimer_rearm_deferred(void);

-- 
2.55.0