diff mbox series

[v2] tools/virtio: virtio_test -h,--help should return directly

Message ID tencent_822CEBEB925205EA1573541CD1C2604F4805@qq.com
State New
Headers
Series [v2] tools/virtio: virtio_test -h,--help should return directly |

Commit Message

Rong Tao March 9, 2023, 8:42 a.m. UTC 
  From: Rong Tao <rongtao@cestc.cn>

When we get help information, we should return directly, and we should not
execute test cases. Move the exit() directly into the help() function and
remove it from case '?'.

Signed-off-by: Rong Tao <rongtao@cestc.cn>
---
v2: help(): exit with a value different from 0 (e.g. 2).
v1: https://lore.kernel.org/lkml/tencent_4B5122C4158323A1D1ACA04B3295F1579207@qq.com/
---
 tools/virtio/virtio_test.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Stefano Garzarella March 9, 2023, 8:49 a.m. UTC | #1 
On Thu, Mar 09, 2023 at 04:42:50PM +0800, Rong Tao wrote:
>From: Rong Tao <rongtao@cestc.cn>
>
>When we get help information, we should return directly, and we should not
>execute test cases. Move the exit() directly into the help() function and
>remove it from case '?'.
>
>Signed-off-by: Rong Tao <rongtao@cestc.cn>
>---
>v2: help(): exit with a value different from 0 (e.g. 2).
>v1: https://lore.kernel.org/lkml/tencent_4B5122C4158323A1D1ACA04B3295F1579207@qq.com/
>---
> tools/virtio/virtio_test.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
>diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
>index 120062f94590..33e17307441f 100644
>--- a/tools/virtio/virtio_test.c
>+++ b/tools/virtio/virtio_test.c
>@@ -327,7 +327,7 @@ const struct option longopts[] = {
> 	}
> };
>
>-static void help(void)
>+static void help(int status)
> {
> 	fprintf(stderr, "Usage: virtio_test [--help]"
> 		" [--no-indirect]"
>@@ -337,6 +337,8 @@ static void help(void)
> 		" [--batch=random/N]"
> 		" [--reset=N]"
> 		"\n");
>+
>+	exit(status);

Sorry, I meant you can put exit(2) here, and remove the `int status` 
parameter of help().

> }
>
> int main(int argc, char **argv)
>@@ -354,14 +356,12 @@ int main(int argc, char **argv)
> 		case -1:
> 			goto done;
> 		case '?':
>-			help();
>-			exit(2);
>+			help(2);

Here you can use help()

> 		case 'e':
> 			features &= ~(1ULL << VIRTIO_RING_F_EVENT_IDX);
> 			break;
> 		case 'h':
>-			help();
>-			goto done;
>+			help(0);

And also here you can use help()

I'm sure you're learning the process, so as a suggestion for the future,
if some thing is not clear, better to ask before sending another
version.

Thanks,
Stefano

> 		case 'i':
> 			features &= ~(1ULL << 
> 			VIRTIO_RING_F_INDIRECT_DESC);
> 			break;
>-- 
>2.39.1
>
Rong Tao March 9, 2023, 8:56 a.m. UTC | #2 
Hi, Stefano.

I'm wondering, does '-h,--help' help() should 'exit(0)'? Is '-h' considered
a successful run and returns '0'.

Best wishes,
Rong
Stefano Garzarella March 9, 2023, 9:08 a.m. UTC | #3 
On Thu, Mar 09, 2023 at 04:56:09PM +0800, Rong Tao wrote:
>Hi, Stefano.
>
>I'm wondering, does '-h,--help' help() should 'exit(0)'? Is '-h' considered
>a successful run and returns '0'.

You're right.
I thought -h would return an error, but that's not the case, so I guess
this patch is fine!

Thanks,
Stefano

>
>Best wishes,
>Rong
>
Stefano Garzarella March 9, 2023, 9:09 a.m. UTC | #4 
On Thu, Mar 09, 2023 at 04:42:50PM +0800, Rong Tao wrote:
>From: Rong Tao <rongtao@cestc.cn>
>
>When we get help information, we should return directly, and we should not
>execute test cases. Move the exit() directly into the help() function and
>remove it from case '?'.
>
>Signed-off-by: Rong Tao <rongtao@cestc.cn>
>---
>v2: help(): exit with a value different from 0 (e.g. 2).
>v1: https://lore.kernel.org/lkml/tencent_4B5122C4158323A1D1ACA04B3295F1579207@qq.com/
>---
> tools/virtio/virtio_test.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)

Acked-by: Stefano Garzarella <sgarzare@redhat.com>
diff mbox series

Patch

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index 120062f94590..33e17307441f 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -327,7 +327,7 @@  const struct option longopts[] = {
 	}
 };
 
-static void help(void)
+static void help(int status)
 {
 	fprintf(stderr, "Usage: virtio_test [--help]"
 		" [--no-indirect]"
@@ -337,6 +337,8 @@  static void help(void)
 		" [--batch=random/N]"
 		" [--reset=N]"
 		"\n");
+
+	exit(status);
 }
 
 int main(int argc, char **argv)
@@ -354,14 +356,12 @@  int main(int argc, char **argv)
 		case -1:
 			goto done;
 		case '?':
-			help();
-			exit(2);
+			help(2);
 		case 'e':
 			features &= ~(1ULL << VIRTIO_RING_F_EVENT_IDX);
 			break;
 		case 'h':
-			help();
-			goto done;
+			help(0);
 		case 'i':
 			features &= ~(1ULL << VIRTIO_RING_F_INDIRECT_DESC);
 			break;