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    SubjectRe: [RFC][PATCH 00/11] perf pmu interface -v2
    Hi Peter,

    On Thu, 2010-06-24 at 15:28 +0100, Peter Zijlstra wrote:
    > These patches prepare the perf code for multiple pmus (no user
    > interface yet, Lin Ming is working on that). These patches remove all
    > weak functions and rework the struct pmu interface.
    > The patches are boot tested on x86_64 and compile tested on: powerpc
    > (!fsl, what config is that?), sparc and arm (sorry no SH compiler)

    I tried to test these for ARM, but I get compilation errors. Maybe you
    forgot to enable perf in the ARM .config? Anyway, the compiler log is:

    CC arch/arm/kernel/perf_event.o
    arch/arm/kernel/perf_event.c: In function 'validate_event':
    arch/arm/kernel/perf_event.c:342: error: 'pmu' undeclared (first use in this function)
    arch/arm/kernel/perf_event.c:342: error: (Each undeclared identifier is reported only once
    arch/arm/kernel/perf_event.c:342: error: for each function it appears in.)
    arch/arm/kernel/perf_event.c: In function 'armpmu_event_init':
    arch/arm/kernel/perf_event.c:536: warning: return makes integer from pointer without a cast
    arch/arm/kernel/perf_event.c: In function 'init_hw_perf_events':
    arch/arm/kernel/perf_event.c:3037: error: expected ';' before 'return'
    arch/arm/kernel/perf_event.c:3038: warning: no return statement in function returning non-void
    make[1]: *** [arch/arm/kernel/perf_event.o] Error 1
    make: *** [arch/arm/kernel] Error 2

    I think there's a missing semicolon, an ERR_PTR that should be a PTR_ERR
    and an ordering issue with the pmu struct.



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