mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-08 02:49:48 +00:00
1a1030d10a
Notice that hybrid_init_cpu_capacity_scaling() only needs to hold hybrid_capacity_lock around __hybrid_init_cpu_capacity_scaling() calls, so introduce a "locked" wrapper around the latter and call it from the former. This allows to drop a local variable and a label that are not needed any more. Also, rename __hybrid_init_cpu_capacity_scaling() to __hybrid_refresh_cpu_capacity_scaling() for consistency. Interestingly enough, this fixes a locking issue introduced by commit929ebc93cc("cpufreq: intel_pstate: Set asymmetric CPU capacity on hybrid systems") that put an arch_enable_hybrid_capacity_scale() call under hybrid_capacity_lock, which was a mistake because the latter is acquired in CPU hotplug paths and so it cannot be held around cpus_read_lock() calls. Link: https://lore.kernel.org/linux-pm/SJ1PR11MB6129EDBF22F8A90FC3A3EDC8B9582@SJ1PR11MB6129.namprd11.prod.outlook.com/ Fixes:929ebc93cc("cpufreq: intel_pstate: Set asymmetric CPU capacity on hybrid systems") Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reported-by: "Borah, Chaitanya Kumar" <chaitanya.kumar.borah@intel.com> Link: https://patch.msgid.link/12554508.O9o76ZdvQC@rjwysocki.net [ rjw: Changelog update ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>