Re: [RFC PATCH v9 11/27] drm/i915/gvt: Change _PAGE_DIRTY to _PAGE_DIRTY_BITS

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On Wed, Feb 05, 2020 at 10:19:19AM -0800, Yu-cheng Yu wrote:
> After the introduction of _PAGE_DIRTY_SW, a dirty PTE can have either
> _PAGE_DIRTY_HW or _PAGE_DIRTY_SW.  Change _PAGE_DIRTY to _PAGE_DIRTY_BITS.
> 
> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

> ---
>  drivers/gpu/drm/i915/gvt/gtt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
> index 4b04af569c05..e467ca182633 100644
> --- a/drivers/gpu/drm/i915/gvt/gtt.c
> +++ b/drivers/gpu/drm/i915/gvt/gtt.c
> @@ -1201,7 +1201,7 @@ static int split_2MB_gtt_entry(struct intel_vgpu *vgpu,
>  	}
>  
>  	/* Clear dirty field. */
> -	se->val64 &= ~_PAGE_DIRTY;
> +	se->val64 &= ~_PAGE_DIRTY_BITS;
>  
>  	ops->clear_pse(se);
>  	ops->clear_ips(se);
> -- 
> 2.21.0
> 

-- 
Kees Cook




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