[PATCH] drm/i915/gvt: Use consist max display pipe numbers as i915 definition

[Zhenyu Wang]

On 2019.02.14 12:56:33 +0800, Colin Xu wrote:
> GVT implements a homogeneous vGPU as host GPU so max vGPU display pipes
> can't exceed HW. The inconsistency definition has potential risks which
> could cause array indexing overflow.
> 
> Remove the unnecessary define of INTEL_GVT_MAX_PIPE and align with i915.
> 
> Signed-off-by: Colin Xu <colin.xu at intel.com>
> ---
>  drivers/gpu/drm/i915/gvt/gvt.h | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
> index 8bce09de4b82..ef710e259726 100644
> --- a/drivers/gpu/drm/i915/gvt/gvt.h
> +++ b/drivers/gpu/drm/i915/gvt/gvt.h
> @@ -111,11 +111,9 @@ struct intel_vgpu_cfg_space {
>  
>  #define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space)
>  
> -#define INTEL_GVT_MAX_PIPE 4
> -
>  struct intel_vgpu_irq {
>  	bool irq_warn_once[INTEL_GVT_EVENT_MAX];
> -	DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE],
> +	DECLARE_BITMAP(flip_done_event[I915_MAX_PIPES],
>  		       INTEL_GVT_EVENT_MAX);
>  };
>  
> -- 

Looks good to me.

Reviewed-by: Zhenyu Wang <zhenyuw at linux.intel.com>

-- 
Open Source Technology Center, Intel ltd.

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