[Accel-config] [PATCH v1 5/6] accel-config: Make idxd_mdev module optional

[ramesh.thomas at intel.com]

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From: Ramesh Thomas <ramesh.thomas(a)intel.com>

Add conditional load and unload of idxd_mdev and make existence
of the module optional.

Signed-off-by: Ramesh Thomas <ramesh.thomas(a)intel.com>
---
 test/libaccfg.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/test/libaccfg.c b/test/libaccfg.c
index 88108a9..031b7fa 100644
--- a/test/libaccfg.c
+++ b/test/libaccfg.c
@@ -1067,12 +1067,16 @@ static int idxd_kmod_init(struct kmod_ctx **ctx, struct kmod_module **mod,
 	if (rc == -ENOENT)
 		rc = kmod_module_probe_insert_module(*mdev_mod, 0, NULL, NULL, NULL,
 				NULL);
-	if (rc >= 0)
-		rc = kmod_module_get_initstate(*mod);
-
 	if (rc < 0) {
-		kmod_module_unref(*mod);
 		kmod_module_unref(*mdev_mod);
+		*mdev_mod = NULL;
+	}
+	rc = kmod_module_get_initstate(*mod);
+	if (rc == -ENOENT)
+		rc = kmod_module_probe_insert_module(*mod, 0, NULL, NULL, NULL,
+				NULL);
+	if (rc < 0) {
+		kmod_module_unref(*mod);
 		kmod_unref(*ctx);
 	}
 
@@ -1140,10 +1144,13 @@ int test_libaccfg(int loglevel, struct accfg_test *test,
 
 	test_cleanup(ctx);
 
-	kmod_module_remove_module(mdev_mod, 0);
-	kmod_module_probe_insert_module(mdev_mod, 0, NULL, NULL, NULL, NULL);
+	if (mdev_mod) {
+		kmod_module_remove_module(mdev_mod, 0);
+		kmod_module_unref(mdev_mod);
+	}
+	kmod_module_remove_module(mod, 0);
+	kmod_module_probe_insert_module(mod, 0, NULL, NULL, NULL, NULL);
 	kmod_module_unref(mod);
-	kmod_module_unref(mdev_mod);
 	kmod_unref(kmod_ctx);
 
 	return result;
-- 
2.26.2