linux-kernel - Re: [PATCH] selftests/input: add tests for the EVIOCSCLOCKID ioctl

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Date:   Mon, 3 Jul 2023 11:26:18 +0200
From:   Enric Balletbo Serra <eballetbo@...il.com>
To:     Dana Elfassy <delfassy@...hat.com>
Cc:     shuah@...nel.org, usama.anjum@...labora.com, eballetbo@...nel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dana Elfassy <dangel101@...il.com>
Subject: Re: [PATCH] selftests/input: add tests for the EVIOCSCLOCKID ioctl

Hi Dana,

Many thanks for the patch. Only a minor comment, see below.

Missatge de Dana Elfassy <delfassy@...hat.com> del dia dl., 3 de jul.
2023 a les 10:18:
>
> This patch introduces tests for the EVIOCSCLOCKID ioctl, for full
> coverage of the different clkids
>
> Signed-off-by: Dana Elfassy <dangel101@...il.com>
> ---
> This patch depends on '[v3] selftests/input: Introduce basic tests for evdev ioctls' [1] sent to the ML.
> [1] https://patchwork.kernel.org/project/linux-input/patch/20230607153214.15933-1-eballetbo@kernel.org/
>
>  tools/testing/selftests/input/evioc-test.c | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>
> diff --git a/tools/testing/selftests/input/evioc-test.c b/tools/testing/selftests/input/evioc-test.c
> index ad7b93fe39cf..81d5336d93ac 100644
> --- a/tools/testing/selftests/input/evioc-test.c
> +++ b/tools/testing/selftests/input/evioc-test.c
> @@ -234,4 +234,36 @@ TEST(eviocsrep_set_repeat_settings)
>         selftest_uinput_destroy(uidev);
>  }
>
> +TEST(eviocsclockid_set_clockid)
> +{
> +       struct selftest_uinput *uidev;
> +       int clkid = 0;

instead of using "magic numbers" for all the CLOCK_* types I'd
recommend to use the defined ones in include/uapi/linux/time.h, so you
can use CLOCK_REALTIME,
CLOCK_MONOTONIC and CLOCK_BOOTTIME in the code.

> +       int rc;
> +
> +       rc = selftest_uinput_create_device(&uidev, -1);
> +       ASSERT_EQ(0, rc);
> +       ASSERT_NE(NULL, uidev);
> +
> +       // case CLOCK_REALTIME
> +       rc = ioctl(uidev->evdev_fd, EVIOCSCLOCKID, &clkid);
> +       ASSERT_EQ(0, rc);
> +
> +       // case CLOCK_MONOTONIC
> +       clkid = 1;
> +       rc = ioctl(uidev->evdev_fd, EVIOCSCLOCKID, &clkid);
> +       ASSERT_EQ(0, rc);
> +
> +       // case CLOCK_BOOTTIME
> +       clkid = 7;
> +       rc = ioctl(uidev->evdev_fd, EVIOCSCLOCKID, &clkid);
> +       ASSERT_EQ(0, rc);
> +
> +       // case default
> +       clkid = -1;
> +       rc = ioctl(uidev->evdev_fd, EVIOCSCLOCKID, &clkid);
> +       ASSERT_EQ(-1, rc);
> +
> +       selftest_uinput_destroy(uidev);
> +}
> +
>  TEST_HARNESS_MAIN
> --
> 2.41.0
>

Cheers,
  Enric