On 9/10/19 6:03 AM, Eugene Syromiatnikov wrote:
* tools/testing/selftests/clone3/clone3.c (CLONE3_ARGS_NO_TEST,
CLONE3_ARGS_ALL_0, CLONE3_ARGS_ALL_1): Change into an enum.
(call_clone3): Change test_mode parameter type to enum test_mode;
use switch statement for actions that dependent on test_mode selection.
(test_clone3): Change test_mode parameter type to enum test_mode.
You don't need the file name in the commit log. Please describe what
you are fixing/doing in the commit. Describing the actual code changes
doesn't help.
Including why these changes are needed as opposed the actual changes
will be helpful. I think I know why, I would like you to tell me why.
Signed-off-by: Eugene Syromiatnikov <esyr@xxxxxxxxxx>
---
tools/testing/selftests/clone3/clone3.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index a0f1989..7b65ee5 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -24,16 +24,18 @@
/* V1 includes set_tid */
#define CLONE3_ARGS_SIZE_V1 72
-#define CLONE3_ARGS_NO_TEST 0
-#define CLONE3_ARGS_ALL_0 1
-#define CLONE3_ARGS_ALL_1 2
+enum test_mode {
+ CLONE3_ARGS_NO_TEST,
+ CLONE3_ARGS_ALL_0,
+ CLONE3_ARGS_ALL_1,
+};
static pid_t raw_clone(struct clone_args *args, size_t size)
{
return syscall(__NR_clone3, args, size);
}
-static int call_clone3(int flags, size_t size, int test_mode)
+static int call_clone3(int flags, size_t size, enum test_mode test_mode)
{
struct clone_args args = {0};
pid_t ppid = -1;
@@ -46,7 +48,8 @@ static int call_clone3(int flags, size_t size, int test_mode)
if (size == 0)
size = sizeof(struct clone_args);
- if (test_mode == CLONE3_ARGS_ALL_0) {
+ switch (test_mode) {
+ case CLONE3_ARGS_ALL_0:
args.flags = 0;
args.pidfd = 0;
args.child_tid = 0;
@@ -56,7 +59,9 @@ static int call_clone3(int flags, size_t size, int test_mode)
args. stack_size = 0;
args.tls = 0;
args.set_tid = 0;
- } else if (test_mode == CLONE3_ARGS_ALL_1) {
+ break;
+
+ case CLONE3_ARGS_ALL_1:
args.flags = 1;
args.pidfd = 1;
args.child_tid = 1;
@@ -66,6 +71,7 @@ static int call_clone3(int flags, size_t size, int test_mode)
args. stack_size = 1;
args.tls = 1;
args.set_tid = 1;
+ break;
}
pid = raw_clone(&args, size);
@@ -91,7 +97,8 @@ static int call_clone3(int flags, size_t size, int test_mode)
return 0;
}
-static int test_clone3(int flags, size_t size, int expected, int test_mode)
+static int test_clone3(int flags, size_t size, int expected,
+ enum test_mode test_mode)
{
int ret;
thanks,
-- Shuah
