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    SubjectRe: [patch] irq: use config_enabled(SMP) checks to cleanup irq_set_affinity() for UP
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    On Thu, 2012-06-07 at 13:36 -0700, Yinghai Lu wrote:
    > On Thu, Jun 7, 2012 at 1:31 PM, Suresh Siddha <suresh.b.siddha@intel.com> wrote:
    > >>
    > >> can you just use
    > >> if (nr_cpu_ids > 1)
    > >> checking instead
    > >> if config_enabled(CONFIG_SMP)
    > >
    > > Idea is to not have any extra runtime checks if CONFIG_SMP is enabled
    > > and which is when all the smp affinity routines are used/invoked.
    >
    > then could use
    > if (NR_CPUS > 1)

    What is the problem with using config_enabled(CONFIG_SMP)? People
    looking for "CONFIG_SMP" can easily identify the dependency.

    thanks,
    suresh




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