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

[Niklas Schnelle]

On Tue, 2022-12-13 at 09:11 -0400, Jason Gunthorpe wrote:
> 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

Stupid me for not at least compile testing on more platforms.
Will send a v2.