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    Followup to:  <p05100361b77232f67994@[207.213.214.37]>
    By author: Jonathan Lundell <jlundell@pobox.com>
    In newsgroup: linux.dev.kernel
    >
    > At 4:28 PM +0200 2001-07-11, Dave Jones wrote:
    > >On Wed, 11 Jul 2001, Hugh Dickins wrote:
    > >
    > >> Am I paranoid?
    > >
    > >Probably :)
    > >The Intel CPUs with PSN I've seen simply drop 1 level.
    > >What other CPUs support this feature? ISTR Transmeta had it?
    > >Do they behave the same?
    > >
    > >> I feel nervous about "c->cpuid_level--" inferring
    > >> what we expect to happen to it, would prefer to check it (below).
    > >> + c->cpuid_level = cpuid_eax(0);
    > >
    > >No biggie, either solution is fine with me.
    >
    > HD's version has the advantage of not having to make assumptions
    > about how future CPUs might handle the level, and leaves open the
    > alternative possibility of leaving the level at 3 (or some future 4)
    > and just turning off the serial-number capability.
    >

    cpuid_level-- is wrong on at least one existing processor (Crusoe),
    which doesn't have CPUID level 2 and therefore goes from 3 to 1.

    -hpa
    --
    <hpa@transmeta.com> at work, <hpa@zytor.com> in private!
    "Unix gives you enough rope to shoot yourself in the foot."
    http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com>
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