Re: [Xen-devel] stable-rc build: 3 warnings 0 failures (stable-rc/v4.4.89-42-g255b4a0)

[gregkh <gregkh@xxxxxxxxxxxxxxxxxxx>]

On Wed, Oct 04, 2017 at 03:49:30PM +0200, Arnd Bergmann wrote:
> On Wed, Oct 4, 2017 at 10:41 AM, Olof's autobuilder <build@xxxxxxxxx> wrote:
> >
> > Warnings:
> >
> >       1 arm/xen/mm.c:202:2: warning: initialization from incompatible 
> > pointer type
> >       1 arm/xen/mm.c:202:2: warning: (near initialization for 
> > 'xen_swiotlb_dma_ops.mmap')
> >       1 drivers/xen/swiotlb-xen.c:697:27: warning: passing argument 6 of 
> > '__generic_dma_ops(dev)->mmap' makes pointer from integer without a cast
> 
> This is caused by backporting 2f0b82b1b830 ("swiotlb-xen: implement
> xen_swiotlb_dma_mmap callback") into stable-rc/4.4.
> 
> The ->mmap() callback signature changed in linux-4.8 as of commit
> 00085f1efa38 ("dma-mapping: use unsigned long for dma_attrs"), so
> all older kernels are affected.
> 
> Please drop the backport patch from 4.4 and 3.18, or apply the trivial fixup
> that I'll send in a bit.

Many thanks for the fixup, I've queued that up now for both trees.

greg k-h

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