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From: Alan Maguire <alan.maguire@oracle.com>
To: brendanhiggins@google.com, linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kunit-dev@googlegroups.com,
	keescook@chromium.org, yzaikin@google.com,
	akpm@linux-foundation.org, yamada.masahiro@socionext.com,
	catalin.marinas@arm.com, joe.lawrence@redhat.com,
	penguin-kernel@i-love.sakura.ne.jp, urezki@gmail.com,
	andriy.shevchenko@linux.intel.com, corbet@lwn.net,
	davidgow@google.com, adilger.kernel@dilger.ca, tytso@mit.edu,
	mcgrof@kernel.org, linux-doc@vger.kernel.org,
	Alan Maguire <alan.maguire@oracle.com>,
	Knut Omang <knut.omang@oracle.com>
Subject: [PATCH v6 linux-kselftest-test 5/6] kunit: allow kunit to be loaded as a module
Date: Wed,  4 Dec 2019 15:27:13 +0000
Message-ID: <1575473234-5443-6-git-send-email-alan.maguire@oracle.com> (raw)
In-Reply-To: <1575473234-5443-1-git-send-email-alan.maguire@oracle.com>

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.

Co-developed-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
---
 lib/kunit/Kconfig  |  2 +-
 lib/kunit/Makefile |  4 +++-
 lib/kunit/test.c   | 13 +++++++++++++
 3 files changed, 17 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 bc6e5e54..fab5564 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 87b5cf1..9242f93 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -486,3 +486,16 @@ void kunit_cleanup(struct kunit *test)
 	}
 }
 EXPORT_SYMBOL_GPL(kunit_cleanup);
+
+static int __init kunit_init(void)
+{
+	return 0;
+}
+late_initcall(kunit_init);
+
+static void __exit kunit_exit(void)
+{
+}
+module_exit(kunit_exit);
+
+MODULE_LICENSE("GPL v2");
-- 
1.8.3.1


  parent reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-04 15:27 [PATCH v6 linux-kselftest-test 0/6] kunit: support building core/tests as modules Alan Maguire
2019-12-04 15:27 ` [PATCH v6 linux-kselftest-test 1/6] kunit: move string-stream.h to lib/kunit Alan Maguire
2019-12-04 15:27 ` [PATCH v6 linux-kselftest-test 2/6] kunit: hide unexported try-catch interface in try-catch-impl.h Alan Maguire
2019-12-04 15:27 ` [PATCH v6 linux-kselftest-test 3/6] kunit: allow kunit tests to be loaded as a module Alan Maguire
2019-12-04 21:47   ` Iurii Zaikin
2019-12-04 15:27 ` [PATCH v6 linux-kselftest-test 4/6] kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds Alan Maguire
2019-12-04 15:27 ` Alan Maguire [this message]
2019-12-04 15:27 ` [PATCH v6 linux-kselftest-test 6/6] kunit: update documentation to describe module-based build Alan Maguire

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