Messages in this thread | | | From | Andy Lutomirski <> | Date | Sun, 3 Jul 2016 07:36:30 -0700 | Subject | Re: [PATCH 1/6] x86: fix duplicated X86_BUG(9) macro |
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On Jul 1, 2016 9:47 AM, "Borislav Petkov" <bp@alien8.de> wrote: > > On Fri, Jul 01, 2016 at 09:30:37AM -0700, Andy Lutomirski wrote: > > I put the ifdef there to prevent anyone from accidentally using it in > > a 64-bit code path, not to save a bit. We could put in the middle of > > the list to make the mistake much less likely to be repeated, I > > suppose. > > Well, if someone does, someone will notice pretty soon, no?
Dunno. ESPFIX was broken under KVM for years and no one notices.
> > I just don't see the reason to worry but maybe I'm missing it. > > And we can call it X86_BUG_ESPFIX_X86_32 or so too...
We could do that, too, I guess. But the current solution is only two extra lines of code. We could reorder the things so that it's in the middle instead of at the end, I suppose.
--Andy
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