> Subject: [PATCH v3 08/31] drm/i915/bios: de/allocate buf_trans for each port
> 
> Allocate intel_ddi_buf_trans buffer per port if requested. Request is
> considered invalid if .use_vbt_vswing field is unset and VBT version is less 
> than

Do you mean OR VBT version is less than 218
Also should be squashed with 7 and 9

Regards,
Suraj Kandpal

> 218. Do not allocate buffer if not requested or request is invalid.
> 
> Deallocate buffer for each requesting port on driver removal.
> 
> v2->v3
> - change kzalloc() into kzalloc_obj()
> - remove null pointer check before kfree()
> 
> Signed-off-by: Michał Grzelak <[email protected]>
> ---
>  drivers/gpu/drm/i915/display/intel_bios.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c
> b/drivers/gpu/drm/i915/display/intel_bios.c
> index a3f0334c3a582..fa9f21c5c6134 100644
> --- a/drivers/gpu/drm/i915/display/intel_bios.c
> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> @@ -2659,7 +2659,15 @@ static void sanitize_hdmi_level_shift(struct
> intel_bios_encoder_data *devdata,
> 
>  static void override_vswing_preemph(struct intel_bios_encoder_data
> *devdata)  {
> +     struct intel_ddi_buf_trans *buf_trans;
> +
>       devdata->buf_trans = NULL;
> +
> +     if (devdata->display->vbt.version < 218 || !devdata-
> >child.use_vbt_vswing)
> +             return;
> +
> +     buf_trans = kzalloc_obj(*buf_trans);
> +     devdata->buf_trans = buf_trans;
>  }
> 
>  static bool
> @@ -3398,6 +3406,8 @@ void intel_bios_driver_remove(struct intel_display
> *display)
>                                node) {
>               list_del(&devdata->node);
>               kfree(devdata->dsc);
> +             kfree(devdata->buf_trans);
> +
>               kfree(devdata);
>       }
> 
> --
> 2.45.2

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