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SubjectRe: [PATCHv5 07/19] x86/mm: Mask out KeyID bits from page table entry pfn
On Wed, Jul 18, 2018 at 04:13:20PM -0700, Dave Hansen wrote:
> On 07/17/2018 04:20 AM, Kirill A. Shutemov wrote:
> > + } else {
> > + /*
> > + * Reset __PHYSICAL_MASK.
> > + * Maybe needed if there's inconsistent configuation
> > + * between CPUs.
> > + */
> > + physical_mask = (1ULL << __PHYSICAL_MASK_SHIFT) - 1;
> > + }
>
> This seems like an appropriate place for a WARN_ON(). Either that, or
> axe this code.

There's pr_err_once() above in the function.

--
Kirill A. Shutemov

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