Hi, Jean,

On Tue, Jun 16, 2020 at 10:28:19AM +0200, Jean-Philippe Brucker wrote:
> On Fri, Jun 12, 2020 at 05:41:29PM -0700, Fenghua Yu wrote:
> > diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> > index 64ede5f150dc..5778db3aa42d 100644
> > --- a/include/linux/mm_types.h
> > +++ b/include/linux/mm_types.h
> > @@ -538,6 +538,10 @@ struct mm_struct {
> >             atomic_long_t hugetlb_usage;
> >  #endif
> >             struct work_struct async_put_work;
> > +
> > +#ifdef CONFIG_PCI_PASID
> 
> Non-PCI devices can also use a PASID (e.g. Arm's SubstreamID). How about
> CONFIG_IOMMU_SUPPORT?

Sure. I will change it to CONFIG_IOMMU_SUPPORT.

Thanks.

-Fenghua

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