[PATCH 2/2] drm/probe_helper: warning on poll_enabled for issue catching
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Thu Mar 9 08:49:00 UTC 2023
On 09/03/2023 07:48, Guchun Chen wrote:
> In order to catch issues in other drivers to ensure proper call
> sequence of polling function.
>
> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2411
> Fixes: a4e771729a51("drm/probe_helper: sort out poll_running vs poll_enabled")
Previously it was suggested that this is not a fix, so the Fixes header
is incorrect.
Also please use -vN when preparing/sending patchsets. This is v2.
> Reported-by: Bert Karwatzki <spasswolf at web.de>
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> Signed-off-by: Guchun Chen <guchun.chen at amd.com>
> ---
> drivers/gpu/drm/drm_probe_helper.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
> index 8127be134c39..85e0e80d4a52 100644
> --- a/drivers/gpu/drm/drm_probe_helper.c
> +++ b/drivers/gpu/drm/drm_probe_helper.c
> @@ -852,6 +852,8 @@ EXPORT_SYMBOL(drm_kms_helper_is_poll_worker);
> */
> void drm_kms_helper_poll_disable(struct drm_device *dev)
> {
> + WARN_ON(!dev->mode_config.poll_enabled);
> +
> if (dev->mode_config.poll_running)
> drm_kms_helper_disable_hpd(dev);
>
--
With best wishes
Dmitry
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