On Tue, Oct 25, 2022 at 03:12:18PM -0300, Jason Gunthorpe wrote:
> diff --git a/drivers/iommu/iommufd/io_pagetable.c b/drivers/iommu/iommufd/io_pagetable.c
> new file mode 100644
> index 00000000000000..27cbb652ee33cd
> --- /dev/null
> +++ b/drivers/iommu/iommufd/io_pagetable.c
> +void iopt_enable_large_pages(struct io_pagetable *iopt)
> +{
> + down_write(&iopt->domains_rwsem);
> + down_write(&iopt->iova_rwsem);
> + WRITE_ONCE(iopt->disable_large_pages, false);
> + iopt_calculate_iova_alignment(iopt);
Coverity reports unchecked return value, perhaps WARN_ON()?
