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Every HiSilicon uncore PMU driver allocates its own static cpuhp state even though they all register identical online/offline callbacks. This wastes slots in the cpuhp state enum and needlessly fragments the hotplug state space. Move the cpuhp state setup into the shared hisi_uncore_pmu framework: register a single dynamic state (CPUHP_AP_ONLINE_DYN) at framework module init and export it for all HiSilicon uncore PMU drivers to use. Drop the now-unused static CPUHP_AP_PERF_ARM_HISI_* entries from include/linux/cpuhotplug.h. The L3C PMU driver keeps a private dynamic state because it has its own hotplug callbacks for migrating multiple per-CPU interrupt affinities, but switches from its former static slot to CPUHP_AP_ONLINE_DYN for consistency. No intended functional changes. Signed-off-by: Yushan Wang <wangyushan12@huawei.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will@kernel.org> |
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