Merge branch 'mctp-kunit-tests'

Jeremy Kerr says:

====================
MCTP kunit tests

This change adds some initial kunit tests for the MCTP core. We'll
expand the coverage in a future series, and augment with a few
selftests, but this establishes a baseline set of tests for now.

Thanks to the kunit folks for the framework!

---

v2:
 - fix MCTP=m, KUNIT={y,m} breakage
 - fix mctp test netdev initialisation
 - strict route reference count checking
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

net/mctp/Kconfig

@@ -11,3 +11,8 @@ menuconfig MCTP
 	  This option enables core MCTP support. For communicating with other
 	  devices, you'll want to enable a driver for a specific hardware
 	  channel.
+
+config MCTP_TEST
+        bool "MCTP core tests" if !KUNIT_ALL_TESTS
+        depends on MCTP=y && KUNIT=y
+        default KUNIT_ALL_TESTS

net/mctp/Makefile

@@ -1,3 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MCTP) += mctp.o
 mctp-objs := af_mctp.o device.o route.o neigh.o
+
+# tests
+obj-$(CONFIG_MCTP_TEST) += test/utils.o

net/mctp/route.c

@@ -11,6 +11,7 @@
  */
 
 #include <linux/idr.h>
+#include <linux/kconfig.h>
 #include <linux/mctp.h>
 #include <linux/netdevice.h>
 #include <linux/rtnetlink.h>
@@ -1228,3 +1229,7 @@ void __exit mctp_routes_exit(void)
 	rtnl_unregister(PF_MCTP, RTM_GETROUTE);
 	dev_remove_pack(&mctp_packet_type);
 }
+
+#if IS_ENABLED(CONFIG_MCTP_TEST)
+#include "test/route-test.c"
+#endif