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    SubjectRe: [Patch] x86, x86_64: fix cpu model for family 0x6
    Siddha, Suresh B wrote:
    > On Sat, Oct 01, 2005 at 12:02:16AM +0200, Andi Kleen wrote:
    >
    >>I applied an earlier mix of your original one and Petr's suggestions. Hope
    >>it's ok.
    >
    >
    > Andi I prefer to follow the SDM guidelines. Who knows if future families
    > comeup with a different rule or use/initialize these extended model/family
    > bits differently. I am just being paranoid.

    And which chance is bigger - that such hypothetical processor will use
    extended model, and your code will get incorrect answer everywhere, or
    that such hypothetical processor will not use extended model, and your
    code will be right?

    >>+ if (c->x86 >= 0xf)
    >
    >
    > And also you have a typo. It should be 0x6.

    It is intentional. Maybe it could do BUG_ON(c->x86 < 0xf).
    Petr

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