[2.6 patch] call export_report from the Makefile

[Adrian Bunk <bunk@kernel.org>]

The main feature is that export_report now automatically works
for O= builds.

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---
83d0ea7d67407f80df2ba9c95e050ecd1f03a8fe 
diff --git a/Makefile b/Makefile
index cb2e057..b6aa2b5 100644
--- a/Makefile
+++ b/Makefile
@@ -1153,6 +1153,7 @@ help:
 	@echo  'Static analysers'
 	@echo  '  checkstack      - Generate a list of stack hogs'
 	@echo  '  namespacecheck  - Name space analysis on compiled kernel'
+	@echo  '  export_report   - List the usages of all exported symbols'
 	@if [ -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \
 	 echo  '  headers_check   - Sanity check on exported headers'; \
 	 fi
@@ -1412,6 +1413,9 @@ versioncheck:
 namespacecheck:
 	$(PERL) $(srctree)/scripts/namespace.pl
 
+export_report:
+	$(PERL) $(srctree)/scripts/export_report.pl
+
 endif #ifeq ($(config-targets),1)
 endif #ifeq ($(mixed-targets),1)