[PATCH 2/2] drm/probe_helper: warning on poll_enabled for issue catching

[Dmitry Baryshkov]

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