Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[cascardo/linux.git] / include / linux / types.h

diff --git a/include/linux/types.h b/include/linux/types.h
index 23d237a..331d8ba 100644 (file)
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -8,7 +8,10 @@
 
 #define DECLARE_BITMAP(name,bits) \
        unsigned long name[BITS_TO_LONGS(bits)]
-
+#else
+#ifndef __EXPORTED_HEADERS__
+#warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders"
+#endif /* __EXPORTED_HEADERS__ */
 #endif
 
 #include <linux/posix_types.h>