diff options
Diffstat (limited to 'lib/test_printf.c')
| -rw-r--r-- | lib/test_printf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/test_printf.c b/lib/test_printf.c index 07309c45f327..e3de52da9117 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/printk.h> +#include <linux/printbuf.h> #include <linux/random.h> #include <linux/rtc.h> #include <linux/slab.h> @@ -783,6 +784,31 @@ test_pointer(void) fourcc_pointer(); } +static void printf_test_fn_0(struct printbuf *out) +{ + prt_str(out, "0"); +} + +static void printf_test_fn_1(struct printbuf *out, void *p) +{ + int *i = p; + + prt_printf(out, "%i", *i); +} + +static void __init +test_fn(void) +{ + int i = 1; + + test("0", "%pf()", printf_test_fn_0); + test("1", "%pf(%p)", printf_test_fn_1, &i); + /* + * Not tested, so we don't fail the build with -Werror: + */ + //test("1", "%(%p)", printf_test_fn, &i); +} + static void __init selftest(void) { alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL); @@ -794,6 +820,7 @@ static void __init selftest(void) test_number(); test_string(); test_pointer(); + test_fn(); kfree(alloced_buffer); } |