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    SubjectRe: [PATCH] x86 idle APM: delete apm_cpu_idle(), and its use of pm_idle
    On Wed, 30 Mar 2011, Len Brown wrote:

    > From: Len Brown <>
    > There is some doubt whether the APM idle feature
    > to call into the BIOS from the idle loop is reliable.
    > Certainly it was known to fail on some machines,
    > but more importantly, APM machines have not shipped
    > for a decade and so finding machines to test the code
    > is problematic.
    > After this patch, systems running in APM mode will
    > simply run default_idle() and HALT without calling
    > into the BIOS from their idle loop.
    > This deletes a much-maligned modular user of the (pm_idle)()
    > function pointer.
    > Signed-off-by: Len Brown <>
    > ---
    > Jiri,
    > If you can review, test, ack, that would be great.
    > I'll probably end up shipping this via the idle tree
    > because subsequent patches to delete pm_idle
    > will depend on it.

    Looks fine, works here.

    Acked-by: Jiri Kosina <>

    Thanks Len.

    Jiri Kosina
    SUSE Labs, Novell Inc.

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