diff options
Diffstat (limited to 'lib/test_printf.c')
| -rw-r--r-- | lib/test_printf.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c index 5d94cbff2120..2d9f520d2f27 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 @@ -593,6 +595,55 @@ 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 +errptr(void) +{ + test("-1234", "%pe", ERR_PTR(-1234)); + + /* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */ + BUILD_BUG_ON(IS_ERR(PTR)); + test_hashed("%pe", PTR); + +#ifdef CONFIG_SYMBOLIC_ERRNAME + test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK)); + test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN)); + BUILD_BUG_ON(EAGAIN != EWOULDBLOCK); + test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK)); + test("[-EIO ]", "[%-8pe]", ERR_PTR(-EIO)); + test("[ -EIO]", "[%8pe]", ERR_PTR(-EIO)); + test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER)); +#endif +} + static void __init test_pointer(void) { @@ -615,6 +666,8 @@ test_pointer(void) bitmap(); netdev_features(); flags(); + errptr(); + fwnode_pointer(); } static void __init selftest(void) |