Re: [PATCH V6 06/14] perf/x86/intel: Use switch in intel_pmu_disable/enable_event

[Peter Zijlstra]

On Fri, Jul 17, 2020 at 07:05:46AM -0700, kan.liang@xxxxxxxxxxxxxxx wrote:
> From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
> 
> Many items are checked in the intel_pmu_disable/enable_event. More items
> will be added later, e.g. perf metrics events.
> 
> Use switch, which is more efficient, to replace the if-else.

Perhaps explain how; does this actually generate a jump-table?