Re: [PATCH 34/49] drm/ttm: make manager debug function optional

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On Fri, Jul 31, 2020 at 02:05:05PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied@xxxxxxxxxx>
> 
> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/ttm/ttm_bo.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index 92de8a6d7647..1e8fda1c9b3a 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -88,7 +88,7 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev, struct drm_printer *p
>  	drm_printf(p, "    size: %llu\n", man->size);
>  	drm_printf(p, "    available_caching: 0x%08X\n", man->available_caching);
>  	drm_printf(p, "    default_caching: 0x%08X\n", man->default_caching);
> -	if (mem_type != TTM_PL_SYSTEM)
> +	if (mem_type != TTM_PL_SYSTEM && man->func->debug)
>  		(*man->func->debug)(man, p);
>  }

Bit a bikeshed, but what about exporting this function (maybe with the man
as argument, not the bdev, mem_type pair) and using it in the first 2
patches? Avoids surprises with optional func->debug.
-Daniel

>  
> -- 
> 2.26.2
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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