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-rw-r--r--include/linux/idr.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 7fb3ff9..d37c8d8 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -8,6 +8,10 @@
* Small id to pointer translation service avoiding fixed sized
* tables.
*/
+
+#ifndef __IDR_H__
+#define __IDR_H__
+
#include <linux/types.h>
#include <linux/bitops.h>
@@ -77,3 +81,5 @@ int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
void idr_remove(struct idr *idp, int id);
void idr_destroy(struct idr *idp);
void idr_init(struct idr *idp);
+
+#endif /* __IDR_H__ */