Re: [PATCH v5 5/7] dma-iommu: Check CONFIG_SWIOTLB more broadly

[Christoph Hellwig]

> -	if (IS_ENABLED(CONFIG_SWIOTLB) && dev_is_untrusted(dev) &&
> +	if (IS_ENABLED(CONFIG_SWIOTLB) && dev_use_swiotlb(dev) &&
>  	    iova_offset(iovad, phys | size)) {

This can drop the explicit CONFIG_SWIOTLB check now (and make the remaining
conditional fit onto a single line).