[PATCH v3 03/11] perf: provide a common perf_event_nop_0() for use with .event_idx

[Cody P Schafer]

On 03/03/2014 09:19 PM, Michael Ellerman wrote:
> On Thu, 2014-27-02 at 21:04:56 UTC, Cody P Schafer wrote:
>> Rather an having every pmu that needs a function that just returns 0 for
>> .event_idx define their own copy, reuse the one in kernel/events/core.c.
>>
>> Rename from perf_swevent_event_idx() because we're no longer using it
>> for just software events. Naming is based on the perf_pmu_nop_*()
>> functions.
>
> You could just use perf_pmu_nop_int() directly.

No, .event_idx needs something that takes a (struct perf_event *), 
perf_pmu_nop_int() takes a (struct pmu *).