Re: [PATCH v2] mm/hotplug: Verify hotplug memory range

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On Wed, 2013-08-14 at 16:45 -0700, Andrew Morton wrote:
> On Wed, 14 Aug 2013 17:34:02 -0600 Toshi Kani <toshi.kani@xxxxxx> wrote:
> 
> > > Printing a u64 is problematic.  Here you assume that u64 is implemented
> > > as unsigned long long.  But it can be implemented as unsigned long, by
> > > architectures which use include/asm-generic/int-l64.h.  Such an
> > > architecture will generate a compile warning here, but I can't
> > > immediately find a Kconfig combination which will make that happen.
> > 
> > Oh, I see.  Should I add the casting below and resend it to you?
> > 
> >                 (unsigned long long)start, (unsigned long long)size);
> 
> I was going to leave it as-is and see if anyone else can find a way of
> triggering the warning.  But other sites in mm/memory_hotplug.c have
> the casts so I went ahead and fixed it.

Thanks!
-Toshi


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