Re: [PATCH] iommu: Allow .iotlb_sync_map to fail and handle s390's -ENOMEM return

Jason Gunthorpe
2022-12-13T13:12:07Z

On Tue, Dec 13, 2022 at 01:11:04PM +0100, Niklas Schnelle wrote:
> --- a/drivers/iommu/tegra-gart.c
> +++ b/drivers/iommu/tegra-gart.c
> @@ -252,8 +252,8 @@ static int gart_iommu_of_xlate(struct device *dev,
> return 0;
> }
>
> -static void gart_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
> - size_t size)
> +static int gart_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
> + size_t size)
> {
> FLUSH_GART_REGS(gart_handle);
> }

return 0 ?

Jason