regmap: kunit: Add some test cases and a few small

Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:

This series adds some more test cases, mainly for testing:

commit eaa03486d932 ("regmap: maple: Fix uninitialized symbol 'ret' warnings")
commit 00bb549d7d63 ("regmap: maple: Fix cache corruption in regcache_maple_drop()")

And the pending patch ("regmap: Add regmap_read_bypassed()")

There are also a few small improvements to the KUnit implementation.

1 files changed, 26 insertions, 27 deletions

diff --git a/tools/testing/selftests/exec/recursion-depth.c b/tools/testing/selftests/exec/recursion-depth.c
index 2dbd5bc45b3e..b2f37d86a5f6 100644
--- a/tools/testing/selftests/exec/recursion-depth.c
+++ b/tools/testing/selftests/exec/recursion-depth.c
@@ -23,45 +23,44 @@
 #include <fcntl.h>
 #include <sys/mount.h>
 #include <unistd.h>
+#include "../kselftest.h"
 
 int main(void)
 {
+	int fd, rv;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
 	if (unshare(CLONE_NEWNS) == -1) {
 		if (errno == ENOSYS || errno == EPERM) {
-			fprintf(stderr, "error: unshare, errno %d\n", errno);
-			return 4;
+			ksft_test_result_skip("error: unshare, errno %d\n", errno);
+			ksft_finished();
 		}
-		fprintf(stderr, "error: unshare, errno %d\n", errno);
-		return 1;
-	}
-	if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {
-		fprintf(stderr, "error: mount '/', errno %d\n", errno);
-		return 1;
+		ksft_exit_fail_msg("error: unshare, errno %d\n", errno);
 	}
+
+	if (mount(NULL, "/", NULL, MS_PRIVATE | MS_REC, NULL) == -1)
+		ksft_exit_fail_msg("error: mount '/', errno %d\n", errno);
+
 	/* Require "exec" filesystem. */
-	if (mount(NULL, "/tmp", "ramfs", 0, NULL) == -1) {
-		fprintf(stderr, "error: mount ramfs, errno %d\n", errno);
-		return 1;
-	}
+	if (mount(NULL, "/tmp", "ramfs", 0, NULL) == -1)
+		ksft_exit_fail_msg("error: mount ramfs, errno %d\n", errno);
 
 #define FILENAME "/tmp/1"
 
-	int fd = creat(FILENAME, 0700);
-	if (fd == -1) {
-		fprintf(stderr, "error: creat, errno %d\n", errno);
-		return 1;
-	}
+	fd = creat(FILENAME, 0700);
+	if (fd == -1)
+		ksft_exit_fail_msg("error: creat, errno %d\n", errno);
+
 #define S "#!" FILENAME "\n"
-	if (write(fd, S, strlen(S)) != strlen(S)) {
-		fprintf(stderr, "error: write, errno %d\n", errno);
-		return 1;
-	}
+	if (write(fd, S, strlen(S)) != strlen(S))
+		ksft_exit_fail_msg("error: write, errno %d\n", errno);
+
 	close(fd);
 
-	int rv = execve(FILENAME, NULL, NULL);
-	if (rv == -1 && errno == ELOOP) {
-		return 0;
-	}
-	fprintf(stderr, "error: execve, rv %d, errno %d\n", rv, errno);
-	return 1;
+	rv = execve(FILENAME, NULL, NULL);
+	ksft_test_result(rv == -1 && errno == ELOOP,
+			 "execve failed as expected (ret %d, errno %d)\n", rv, errno);
+	ksft_finished();
 }