diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 147eb01..c08c998 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -28,17 +28,27 @@
 #define ALIGN __ALIGN
 #define ALIGN_STR __ALIGN_STR
 
+#ifndef ENTRY
 #define ENTRY(name) \
   .globl name; \
   ALIGN; \
   name:
+#endif
 
 #define KPROBE_ENTRY(name) \
   .section .kprobes.text, "ax"; \
-  .globl name; \
-  ALIGN; \
-  name:
+  ENTRY(name)
 
+#ifndef END
+#define END(name) \
+  .size name, .-name
+#endif
+
+#ifndef ENDPROC
+#define ENDPROC(name) \
+  .type name, @function; \
+  END(name)
+#endif
 
 #endif