[igt-dev] [PATCH i-g-t] tests/kms_dp_dsc: Transmit correct DRM connector structure.

[Mark Yacoub]

On Mon, May 31, 2021 at 11:36 PM Lee Shawn C <shawn.c.lee at intel.com> wrote:
>
> 1. Pass one more parameter (current drmModeConnector) when
>    call "run_test()". Use it to retrieve proper connector_type.
> 2. SIGSEGV fault would happen due to "igt_output" did not
>    store properly in "data->output". Main funciton already
>    pass "igt_output" pointer into "run_test()" function.
>    Use this pointer instead of "data->output" to get display mode.
>
> Fixes: a1772be7dede ("tests/kms_dp_dsc: Bug fix for DP on Pipe A")
>
Tested on ChromeOS on TGL (Delbin) and JSL (Drawlat)
Tested-by: Mark Yacoub <markyacoub at chromium.org>
> Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
> ---
>  tests/kms_dp_dsc.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/tests/kms_dp_dsc.c b/tests/kms_dp_dsc.c
> index ea7c9f4f72ce..e434384da369 100644
> --- a/tests/kms_dp_dsc.c
> +++ b/tests/kms_dp_dsc.c
> @@ -224,11 +224,11 @@ static void update_display(data_t *data, enum dsc_test_type test_type)
>  }
>
>  static void run_test(data_t *data, igt_output_t *output,
> -                    enum dsc_test_type test_type)
> +                    drmModeConnector *connector, enum dsc_test_type test_type)
>  {
>         enum pipe pipe;
>
> -       data->mode = igt_output_get_mode(data->output);
> +       data->mode = igt_output_get_mode(output);
>         igt_create_pattern_fb(data->drm_fd, data->mode->hdisplay,
>                               data->mode->vdisplay,
>                               DRM_FORMAT_XRGB8888,
> @@ -239,7 +239,7 @@ static void run_test(data_t *data, igt_output_t *output,
>                 if (is_i915_device(data->drm_fd)) {
>                         uint32_t devid = intel_get_drm_devid(data->drm_fd);
>
> -                       if (data->connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
> +                       if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
>                             data->pipe == PIPE_A && IS_GEN11(devid)) {
>                                 igt_debug("DSC not supported on Pipe A on external DP in Gen11 platforms\n");
>                                 continue;
> @@ -304,7 +304,7 @@ igt_main
>                                         continue;
>                                 }
>                                 test_conn_cnt++;
> -                               run_test(&data, output, test_basic_dsc_enable);
> +                               run_test(&data, output, connector, test_basic_dsc_enable);
>                         }
>                         igt_skip_on(test_conn_cnt == 0);
>                 }
> --
> 2.17.1
>