2 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index a3aef5d55dba..f1709c1f9eae 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -39,3 +39,6 @@
 #endif
 
 #define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
+#if __GNUC_MINOR__ >= 4
+#define __compiletime_warning(message) __attribute__((warning(message)))
+#endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 8e54108688f9..950356311f12 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -270,6 +270,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 #ifndef __compiletime_object_size
 # define __compiletime_object_size(obj) -1
 #endif
+#ifndef __compiletime_warning
+# define __compiletime_warning(message)
+#endif
+
 /*
  * Prevent the compiler from merging or refetching accesses.  The compiler
  * is also forbidden from reordering successive instances of ACCESS_ONCE(),