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-rw-r--r--lib/test_ida.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/test_ida.c b/lib/test_ida.c
new file mode 100644
index 000000000000..8c9a0672696b
--- /dev/null
+++ b/lib/test_ida.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * test_ida.c: Test the IDA API
+ * Copyright (c) 2016-2018 Microsoft Corporation
+ * Copyright (c) 2018 Oracle Corporation
+ * Author: Matthew Wilcox <willy@infradead.org>
+ */
+
+#include <linux/idr.h>
+#include <linux/module.h>
+
+static unsigned int tests_run;
+static unsigned int tests_passed;
+
+#ifdef __KERNEL__
+void ida_dump(struct ida *ida) { }
+#endif
+#define IDA_BUG_ON(ida, x) do { \
+ tests_run++; \
+ if (x) { \
+ ida_dump(ida); \
+ dump_stack(); \
+ } else { \
+ tests_passed++; \
+ } \
+} while (0)
+
+static int ida_checks(void)
+{
+ DEFINE_IDA(ida);
+
+ IDA_BUG_ON(&ida, !ida_is_empty(&ida));
+
+ printk("IDA: %u of %u tests passed\n", tests_passed, tests_run);
+ return (tests_run != tests_passed) ? 0 : -EINVAL;
+}
+
+static void ida_exit(void)
+{
+}
+
+module_init(ida_checks);
+module_exit(ida_exit);
+MODULE_AUTHOR("Matthew Wilcox <willy@infradead.org>");
+MODULE_LICENSE("GPL");