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-rw-r--r--include/asm-ia64/bitops.h4
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>