Re: [PATCH 03/13] drm/radeon|amdgpu: Remove redundant num_connectors check

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On Tue, Dec 13, 2016 at 6:08 PM, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> The list walk will shortcircuit anyway.
>
> Cc: Alex Deucher <alexdeucher@xxxxxxxxx>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>

Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c |  6 ++----
>  drivers/gpu/drm/radeon/radeon_irq_kms.c | 12 ++++--------
>  2 files changed, 6 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> index fb902932f571..e63ece049b05 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> @@ -61,10 +61,8 @@ static void amdgpu_hotplug_work_func(struct work_struct *work)
>         struct drm_connector *connector;
>
>         mutex_lock(&mode_config->mutex);
> -       if (mode_config->num_connector) {
> -               list_for_each_entry(connector, &mode_config->connector_list, head)
> -                       amdgpu_connector_hotplug(connector);
> -       }
> +       list_for_each_entry(connector, &mode_config->connector_list, head)
> +               amdgpu_connector_hotplug(connector);
>         mutex_unlock(&mode_config->mutex);
>         /* Just fire off a uevent and let userspace tell us what to do */
>         drm_helper_hpd_irq_event(dev);
> diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
> index c084cadcbf21..1b7528df7f7f 100644
> --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
> +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
> @@ -85,10 +85,8 @@ static void radeon_hotplug_work_func(struct work_struct *work)
>                 return;
>
>         mutex_lock(&mode_config->mutex);
> -       if (mode_config->num_connector) {
> -               list_for_each_entry(connector, &mode_config->connector_list, head)
> -                       radeon_connector_hotplug(connector);
> -       }
> +       list_for_each_entry(connector, &mode_config->connector_list, head)
> +               radeon_connector_hotplug(connector);
>         mutex_unlock(&mode_config->mutex);
>         /* Just fire off a uevent and let userspace tell us what to do */
>         drm_helper_hpd_irq_event(dev);
> @@ -103,10 +101,8 @@ static void radeon_dp_work_func(struct work_struct *work)
>         struct drm_connector *connector;
>
>         /* this should take a mutex */
> -       if (mode_config->num_connector) {
> -               list_for_each_entry(connector, &mode_config->connector_list, head)
> -                       radeon_connector_hotplug(connector);
> -       }
> +       list_for_each_entry(connector, &mode_config->connector_list, head)
> +               radeon_connector_hotplug(connector);
>  }
>  /**
>   * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
> --
> 2.11.0
>
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