On Wed, Jul 15, 2020 at 12:11:20AM -0300, Vitor Massaru Iha wrote:
> This adds the conversion of the runtime tests of test_user_copy fuctions,
> from `lib/test_user_copy.c`to KUnit tests.
>
> Signed-off-by: Vitor Massaru Iha <vitor@xxxxxxxxxxx>
> [...]
> @@ -16,6 +16,7 @@
> #include <linux/slab.h>
> #include <linux/uaccess.h>
> #include <linux/vmalloc.h>
> +#include <kunit/test.h>
>
> /*
> * Several 32-bit architectures support 64-bit {get,put}_user() calls.
> @@ -31,26 +32,16 @@
> # define TEST_U64
> #endif
>
> -#define test(condition, msg, ...) \
> -({ \
> - int cond = (condition); \
> - if (cond) \
> - pr_warn("[%d] " msg "\n", __LINE__, ##__VA_ARGS__); \
> - cond; \
> -})
> -
> static bool is_zeroed(void *from, size_t size)
> {
> return memchr_inv(from, 0x0, size) == NULL;
> }
>
> -static int test_check_nonzero_user(char *kmem, char __user *umem, size_t size)
> +static void test_check_nonzero_user(struct kunit *test, char *kmem, char __user *umem, size_t size)
> {
> - int ret = 0;
> size_t start, end, i, zero_start, zero_end;
>
> - if (test(size < 2 * PAGE_SIZE, "buffer too small"))
> - return -EINVAL;
> + KUNIT_EXPECT_FALSE_MSG(test, size < 2 * PAGE_SIZE, "buffer too small");
I think this could be a much smaller diff if you just replaced the
"test" macro:
#define test(condition, msg, ...) \
({ \
int cond = !!(condition); \
KUNIT_EXPECT_FALSE_MSG(kunit_context, cond, msg, ##__VA_ARGS__);\
cond; \
})
--
Kees Cook
