Re: [PATCH 01/25] arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable

[Will Deacon]

On Tue, May 07, 2019 at 08:37:20AM +0200, Christoph Hellwig wrote:
> On Fri, May 03, 2019 at 12:33:53PM +0100, Catalin Marinas wrote:
> > On Tue, Apr 30, 2019 at 06:51:50AM -0400, 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>
> 
> Given that this is a bug fix mostly separate from the rest of the
> series - do you want to pick it up for 5.2 and maybe add a Cc for
> stable?

Sure thing; I'll probably send it after -rc1 unless we get some other fixes
in during the merge window.

Will