linux-kernel - [PATCH v2 linux-kselftest-test 2/3] kunit: allow kunit to be loaded as a module

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Date:   Tue,  8 Oct 2019 15:55:45 +0100
From:   Alan Maguire <alan.maguire@...cle.com>
To:     linux-kselftest@...r.kernel.org, brendanhiggins@...gle.com,
        skhan@...uxfoundation.org
Cc:     mcgrof@...nel.org, keescook@...omium.org, yzaikin@...gle.com,
        akpm@...ux-foundation.org, yamada.masahiro@...ionext.com,
        catalin.marinas@....com, joe.lawrence@...hat.com,
        penguin-kernel@...ove.sakura.ne.jp, schowdary@...dia.com,
        urezki@...il.com, andriy.shevchenko@...ux.intel.com,
        changbin.du@...el.com, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Alan Maguire <alan.maguire@...cle.com>,
        Knut Omang <knut.omang@...cle.com>
Subject: [PATCH v2 linux-kselftest-test 2/3] kunit: allow kunit to be loaded as a module

Making kunit itself buildable as a module allows for "always-on"
kunit configuration; specifying CONFIG_KUNIT=m means the module
is built but only used when loaded.  Kunit test modules will load
kunit.ko as an implicit dependency, so simply running
"modprobe my-kunit-tests" will load the tests along with the kunit
module and run them.

Signed-off-by: Alan Maguire <alan.maguire@...cle.com>
Signed-off-by: Knut Omang <knut.omang@...cle.com>

---
 lib/kunit/Kconfig  | 2 +-
 lib/kunit/Makefile | 4 +++-
 lib/kunit/test.c   | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/kunit/Kconfig b/lib/kunit/Kconfig
index 9ebd5e6..065aa16 100644
--- a/lib/kunit/Kconfig
+++ b/lib/kunit/Kconfig
@@ -3,7 +3,7 @@
 #
 
 menuconfig KUNIT
-	bool "KUnit - Enable support for unit tests"
+	tristate "KUnit - Enable support for unit tests"
 	help
 	  Enables support for kernel unit tests (KUnit), a lightweight unit
 	  testing and mocking framework for the Linux kernel. These tests are
diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile
index 769d940..8e2635a 100644
--- a/lib/kunit/Makefile
+++ b/lib/kunit/Makefile
@@ -1,4 +1,6 @@
-obj-$(CONFIG_KUNIT) +=			test.o \
+obj-$(CONFIG_KUNIT) +=			kunit.o
+
+kunit-objs +=				test.o \
 					string-stream.o \
 					assert.o \
 					try-catch.o
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index e7896f1..6024627 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -484,3 +484,7 @@ void kunit_cleanup(struct kunit *test)
 	}
 }
 EXPORT_SYMBOL_GPL(kunit_cleanup);
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+#endif /* MODULE */
-- 
1.8.3.1