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-rw-r--r--include/asm-um/bitops.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-um/bitops.h b/include/asm-um/bitops.h
index 46d7819..e4d38d4 100644
--- a/include/asm-um/bitops.h
+++ b/include/asm-um/bitops.h
@@ -1,6 +1,10 @@
#ifndef __UM_BITOPS_H
#define __UM_BITOPS_H
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
#include "asm/arch/bitops.h"
#endif
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