[PATCH] selftests/bpf: Fix test_progs compilation failure in 32-bit arch

[Yang Jihong]

test_progs fails to be compiled in the 32-bit arch, log is as follows:

  test_progs.c:1013:52: error: format '%ld' expects argument of type 'long int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
   1013 |                 sprintf(buf, "MSG_TEST_LOG (cnt: %ld, last: %d)",
        |                                                  ~~^
        |                                                    |
        |                                                    long int
        |                                                  %d
   1014 |                         strlen(msg->test_log.log_buf),
        |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        |                         |
        |                         size_t {aka unsigned int}

Fix it.

Fixes: 91b2c0afd00c ("selftests/bpf: Add parallelism to test_progs")
Signed-off-by: Yang Jihong <yangjihong1@xxxxxxxxxx>
---
 tools/testing/selftests/bpf/test_progs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 0e9a47f97890..3fef451d8831 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -1010,7 +1010,7 @@ static inline const char *str_msg(const struct msg *msg, char *buf)
 			msg->subtest_done.have_log);
 		break;
 	case MSG_TEST_LOG:
-		sprintf(buf, "MSG_TEST_LOG (cnt: %ld, last: %d)",
+		sprintf(buf, "MSG_TEST_LOG (cnt: %zu, last: %d)",
 			strlen(msg->test_log.log_buf),
 			msg->test_log.is_last);
 		break;
-- 
2.30.GIT