Re: [PATCH v1 2/3] perf pmu: Add PMU kind to simplify differentiating

[Anubhav Shelat]

On Fri, Nov 14, 2025 at 10:06 PM Ian Rogers <irogers@xxxxxxxxxx> wrote:
> +static inline enum pmu_kind perf_pmu__kind(const struct perf_pmu *pmu)
> +{
> +       __u32 type;
> +
> +       if (!pmu)
> +               return PERF_PMU_KIND_PE;
> +
> +       type = pmu->type;
> +       if (type <= PERF_PMU_TYPE_PE_END)
> +               return PERF_PMU_KIND_PE;
> +       if (type <= PERF_PMU_TYPE_DRM_END)
> +               return PERF_PMU_KIND_DRM;
> +       if (type <= PERF_PMU_TYPE_DRM_END)
> +               return PERF_PMU_KIND_DRM;
> +       if (type <= PERF_PMU_TYPE_HWMON_END)
> +               return PERF_PMU_KIND_HWMON;
> +       if (type == PERF_PMU_TYPE_TOOL)
> +               return PERF_PMU_KIND_TOOL;
> +       return PERF_PMU_KIND_FAKE;
> +}
> +

Looks like there's a duplicate check for PERF_PMU_TYPE_DRM_END.