diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 3050de0dac96..0020ee1cab37 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -54,6 +54,22 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 
 #ifdef __KERNEL__
 
+/*
+ * Minimal backport of compiler_attributes.h to add support for __copy
+ * to v4.9.y so that we can use it in init/exit_module to avoid
+ * -Werror=missing-attributes errors on GCC 9.
+ */
+#ifndef __has_attribute
+# define __has_attribute(x) __GCC4_has_attribute_##x
+# define __GCC4_has_attribute___copy__                0
+#endif
+
+#if __has_attribute(__copy__)
+# define __copy(symbol)                 __attribute__((__copy__(symbol)))
+#else
+# define __copy(symbol)
+#endif
+
 #ifdef __GNUC__
 #include <linux/compiler-gcc.h>
 #endif