[PATCH v7 13/13] lib/test_printf: Add tests for %pfw printk modifier

Sakari Ailus
2019-09-18T13:34:22Z

Add a test for the %pfw printk modifier using software nodes.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
lib/test_printf.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 944eb50f38625..bb6a7d334084b 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -22,6 +22,8 @@
#include <linux/gfp.h>
#include <linux/mm.h>

+#include <linux/property.h>
+
#include "../tools/testing/selftests/kselftest_module.h"

#define BUF_SIZE 256
@@ -588,6 +590,35 @@ flags(void)
kfree(cmp_buffer);
}

+static void __init fwnode_pointer(void)
+{
+ const struct software_node softnodes[] = {
+ { .name = "first", },
+ { .name = "second", .parent = &softnodes[0], },
+ { .name = "third", .parent = &softnodes[1], },
+ { NULL /* Guardian */ }
+ };
+ const char * const full_name = "first/second/third";
+ const char * const full_name_second = "first/second";
+ const char * const second_name = "second";
+ const char * const third_name = "third";
+ int rval;
+
+ rval = software_node_register_nodes(softnodes);
+ if (rval) {
+ pr_warn("cannot register softnodes; rval %d\n", rval);
+ return;
+ }
+
+ test(full_name_second, "%pfw", software_node_fwnode(&softnodes[1]));
+ test(full_name, "%pfw", software_node_fwnode(&softnodes[2]));
+ test(full_name, "%pfwf", software_node_fwnode(&softnodes[2]));
+ test(second_name, "%pfwP", software_node_fwnode(&softnodes[1]));
+ test(third_name, "%pfwP", software_node_fwnode(&softnodes[2]));
+
+ software_node_unregister_nodes(softnodes);
+}
+
static void __init
test_pointer(void)
{
@@ -610,6 +641,7 @@ test_pointer(void)
bitmap();
netdev_features();
flags();
+ fwnode_pointer();
}

static void __init selftest(void)
--
2.20.1