From 2bc84526d174a2a89c76438f049fc03ac259a159 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuahkh@osg.samsung.com>
Date: Wed, 6 Sep 2017 16:44:35 -0600
Subject: [PATCH] Makefile: kselftest and kselftest-clean fail for make O=dir
 case

kselftest and kselftest-clean targets fail when object directory is
specified to relocate objects. Fix it so it can find the source tree
to build from.

make O=/tmp/kselftest_top kselftest

make[1]: Entering directory '/tmp/kselftest_top'
make[2]: Entering directory '/tmp/kselftest_top'
make[2]: *** tools/testing/selftests: No such file or directory.  Stop.
make[2]: Leaving directory '/tmp/kselftest_top'
./linux-kselftest/Makefile:1185: recipe for target
'kselftest' failed
make[1]: *** [kselftest] Error 2
make[1]: Leaving directory '/tmp/kselftest_top'
Makefile:145: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 64cbc66cebcaa..9a70578922d3e 100644
--- a/Makefile
+++ b/Makefile
@@ -1172,11 +1172,11 @@ headers_check: headers_install
 
 PHONY += kselftest
 kselftest:
-	$(Q)$(MAKE) -C tools/testing/selftests run_tests
+	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
 
 PHONY += kselftest-clean
 kselftest-clean:
-	$(Q)$(MAKE) -C tools/testing/selftests clean
+	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests clean
 
 PHONY += kselftest-merge
 kselftest-merge:
-- 
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