[LTP] [PATCH] ioctl_pidfd05: Check if PIDFD_INFO_EXIT is available

[Avinesh Kumar]

This test also needs this check as it might fail with
ioctl_pidfd05.c:45: TFAIL: ioctl(pidfd, PIDFD_GET_INFO, NULL) expected EINVAL: ENOTTY (25)
ioctl_pidfd05.c:46: TFAIL: ioctl(pidfd, PIDFD_GET_INFO_SHORT, info_invalid) expected EINVAL: ENOTTY (25)
when system does not have PIDFD_INFO_EXIT implementation.

Signed-off-by: Avinesh Kumar <akumar@suse.de>
---
 testcases/kernel/syscalls/ioctl/ioctl_pidfd05.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/ioctl/ioctl_pidfd05.c b/testcases/kernel/syscalls/ioctl/ioctl_pidfd05.c
index c379717b3..01ea363b6 100644
--- a/testcases/kernel/syscalls/ioctl/ioctl_pidfd05.c
+++ b/testcases/kernel/syscalls/ioctl/ioctl_pidfd05.c
@@ -14,7 +14,7 @@
 #include "tst_test.h"
 #include "lapi/pidfd.h"
 #include "lapi/sched.h"
-#include "lapi/ioctl.h"
+#include "ioctl_pidfd.h"
 
 struct pidfd_info_invalid {
 	uint32_t dummy;
@@ -48,8 +48,15 @@ static void run(void)
 	SAFE_CLOSE(pidfd);
 }
 
+static void setup(void)
+{
+	if (!ioctl_pidfd_info_exit_supported())
+		tst_brk(TCONF, "PIDFD_INFO_EXIT is not supported by ioctl()");
+}
+
 static struct tst_test test = {
 	.test_all = run,
+	.setup = setup,
 	.forks_child = 1,
 	.bufs = (struct tst_buffers []) {
 		{&args, .size = sizeof(*args)},
-- 
2.51.0