From: Ben Hutchings <ben@decadent.org.uk>
Subject: kbuild: Fix recordmcount dependency for OOT modules
Date: Mon, 08 Sep 2014 18:31:24 +0100
Forwarded: no

We never rebuild anything in-tree when building an out-of-tree
modules, so external modules should not depend on the recordmcount
sources.

Index: linux/scripts/Makefile.build
===================================================================
--- linux.orig/scripts/Makefile.build
+++ linux/scripts/Makefile.build
@@ -232,6 +232,11 @@ cmd_record_mcount =						\
 endif # CC_USING_RECORD_MCOUNT
 endif # CONFIG_FTRACE_MCOUNT_RECORD
 
+# Don't require recordmcount source for an OOT build.
+ifdef KBUILD_EXTMOD
+recordmcount_source :=
+endif
+
 ifdef CONFIG_STACK_VALIDATION
 ifneq ($(SKIP_STACK_VALIDATION),1)