[PATCH v3 1/4] rv: guard rv.h against double inclusion

[Tobias Schaffner]

rv.h has no include guard. Only three C files include it directly and
none of them twice, but anything that includes it from a header hits
this.

Add the guard, so rv.h can be included from a header as well.

Signed-off-by: Tobias Schaffner <tobias.schaffner@xxxxxxxxxxx>
---
 kernel/trace/rv/rv.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/trace/rv/rv.h b/kernel/trace/rv/rv.h
index 2c0f51ff9d5c..62779e6b74bd 100644
--- a/kernel/trace/rv/rv.h
+++ b/kernel/trace/rv/rv.h
@@ -1,4 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _KERNEL_TRACE_RV_H
+#define _KERNEL_TRACE_RV_H
+
 #include <linux/mutex.h>
 
 struct rv_interface {
@@ -45,3 +48,5 @@ static inline int init_rv_reactors(struct dentry *root_dir)
 	return 0;
 }
 #endif
+
+#endif /* _KERNEL_TRACE_RV_H */
-- 
2.53.0