[PATCH 1/2] Makefile: Add kselftest_build target to build tests

[Shuah Khan]

Add kselftest_build target to build tests from the top level
Makefile. This is to simplify kselftest use-cases for CI and
distributions where build and test systems are different.

Current kselftest target builds and runs tests on a development
system which is a developer use-case.

This change addresses requests from developers and testers to add
support for building from the main Makefile.

Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index d456746da347..ac4af6fc4b50 100644
--- a/Makefile
+++ b/Makefile
@@ -1233,6 +1233,10 @@ scripts_unifdef: scripts_basic
 # ---------------------------------------------------------------------------
 # Kernel selftest
 
+PHONY += kselftest_build
+kselftest_build:
+	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests all
+
 PHONY += kselftest
 kselftest:
 	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
-- 
2.20.1