1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-ia64/bitops.h b/include/asm-ia64/bitops.h
index 2144f1a8ed6f..a977affaebec 100644
--- a/include/asm-ia64/bitops.h
+++ b/include/asm-ia64/bitops.h
@@ -9,6 +9,10 @@
  * O(1) scheduler patch
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <asm/intrinsics.h>