Merge tag 'linux-kselftest-next-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest update from Shuah Khan:

 - several patches to fix incorrect kernel headers search path from
   Mathieu Desnoyers

 - a few follow-on fixes found during testing the above change

 - miscellaneous fixes

 - support for filtering and enumerating tests

* tag 'linux-kselftest-next-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (40 commits)
  selftests/user_events: add a note about user_events.h dependency
  selftests/mount_setattr: fix to make run_tests failure
  selftests/mount_setattr: fix redefine struct mount_attr build error
  selftests/sched: fix warn_unused_result build warns
  selftests/ptp: Remove clean target from Makefile
  selftests: use printf instead of echo -ne
  selftests/ftrace: Fix bash specific "==" operator
  selftests: tpm2: remove redundant ord()
  selftests: find echo binary to use -ne options
  selftests: Fix spelling mistake "allright" -> "all right"
  selftests: tdx: Use installed kernel headers search path
  selftests: ptrace: Use installed kernel headers search path
  selftests: memfd: Use installed kernel headers search path
  selftests: iommu: Use installed kernel headers search path
  selftests: x86: Fix incorrect kernel headers search path
  selftests: vm: Fix incorrect kernel headers search path
  selftests: user_events: Fix incorrect kernel headers search path
  selftests: sync: Fix incorrect kernel headers search path
  selftests: seccomp: Fix incorrect kernel headers search path
  selftests: sched: Fix incorrect kernel headers search path
  ...

1 files changed, 12 insertions, 3 deletions

diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c
index 8109b17dc764..25e0d95d3713 100644
--- a/tools/testing/selftests/sched/cs_prctl_test.c
+++ b/tools/testing/selftests/sched/cs_prctl_test.c
@@ -27,6 +27,7 @@
 #include <sys/prctl.h>
 #include <unistd.h>
 #include <time.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -151,12 +152,17 @@ static void create_threads(int num_threads, int thr_tids[])
 static int child_func_process(void *arg)
 {
 	struct child_args *ca = (struct child_args *)arg;
+	int ret;
 
 	close(ca->pfd[0]);
 
 	create_threads(ca->num_threads, ca->thr_tids);
 
-	write(ca->pfd[1], &ca->thr_tids, sizeof(int) * ca->num_threads);
+	ret = write(ca->pfd[1], &ca->thr_tids, sizeof(int) * ca->num_threads);
+	if (ret == -1)
+		printf("write failed on pfd[%d] - error (%s)\n",
+			ca->pfd[1], strerror(errno));
+
 	close(ca->pfd[1]);
 
 	while (1)
@@ -169,7 +175,7 @@ static unsigned char child_func_process_stack[STACK_SIZE];
 void create_processes(int num_processes, int num_threads, struct child_args proc[])
 {
 	pid_t cpid;
-	int i;
+	int i, ret;
 
 	for (i = 0; i < num_processes; ++i) {
 		proc[i].num_threads = num_threads;
@@ -184,7 +190,10 @@ void create_processes(int num_processes, int num_threads, struct child_args proc
 	}
 
 	for (i = 0; i < num_processes; ++i) {
-		read(proc[i].pfd[0], &proc[i].thr_tids, sizeof(int) * proc[i].num_threads);
+		ret = read(proc[i].pfd[0], &proc[i].thr_tids, sizeof(int) * proc[i].num_threads);
+		if (ret == -1)
+			printf("read failed on proc[%d].pfd[0] error (%s)\n",
+				i, strerror(errno));
 		close(proc[i].pfd[0]);
 	}
 }