On 32-bit architectures size_t is an unsigned int, and printing it with %ld warns:

dmabuf-heap.c:215:43: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'size_t' {aka 'unsigned int'} [-Wformat=]

Use %zu.

Signed-off-by: Sasha Levin sashal@kernel.org --- Found with a 32-bit build of the selftests with a 64-bit time_t (gcc 16 and clang 21 with -m32 -D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64); KernelCI's 32-bit arm builds show the same warnings. The changed files build without format warnings there now, and the x86_64 builds don't change. The other selftests get the same kind of fix in separate patches.

tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index 1d49df6719198..c65efc088e88d 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -212,7 +212,7 @@ static void test_alloc_zeroed(char *heap_name, size_t size) void *p = NULL; char *c;

- ksft_print_msg("Testing alloced %ldk buffers are zeroed:\n", size / 1024); + ksft_print_msg("Testing alloced %zuk buffers are zeroed:\n", size / 1024); heap_fd = dmabuf_heap_open(heap_name);

/* Allocate and fill a bunch of buffers */