linux-kernel - Re: [PATCH v5 03/29] vfio: powerpc/spapr: Check that TCE page size is equal to it_page

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Date:	Tue, 10 Mar 2015 17:34:17 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Alexey Kardashevskiy <aik@...abs.ru>,
	linuxppc-dev@...ts.ozlabs.org, Paul Mackerras <paulus@...ba.org>,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 03/29] vfio: powerpc/spapr: Check that TCE page size
 is equal to it_page_size

On Wed, 2015-03-11 at 10:14 +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2015-03-10 at 17:03 -0600, Alex Williamson wrote:
> > > > return (PAGE_SHIFT + compound_order(compound_head(page) >= page_shift);
> > > 
> > > This won't be "bool" though.
> > 
> > Yes, it will.
> 
> Don't you have your parenthesis in the wrong place, Alex ? :-)

Probably, but the compiler will warn about that.

> > >  This will (I'll do this)
> > > 
> > > shift = PAGE_SHIFT + compound_order(compound_head(page));
> > > return (shift >= page_shift);
> 
> 



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