Re: [PATCH 01/24] arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable

[Will Deacon]

On Mon, May 20, 2019 at 09:29:25AM +0200, Christoph Hellwig wrote:
> DMA allocations that can't sleep may return non-remapped addresses, but
> we do not properly handle them in the mmap and get_sgtable methods.
> Resolve non-vmalloc addresses using virt_to_page to handle this corner
> case.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> Reviewed-by: Robin Murphy <robin.murphy@xxxxxxx>
> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> ---
>  arch/arm64/mm/dma-mapping.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)

I'll send this one to Linus this week as part of the arm64 fixes.

Will