On Thu, Sep 14, 2023 at 03:41:11PM +0100, Jonathan Cameron wrote: > On Wed, 13 Sep 2023 16:38:13 +0000 > James Morse <james.morse@xxxxxxx> wrote: > > > LoongArch provides its own arch_unregister_cpu(). This clears the > > hotpluggable flag, then unregisters the CPU. > > > > It isn't necessary to clear the hotpluggable flag when unregistering > > a cpu. unregister_cpu() writes NULL to the percpu cpu_sys_devices > > pointer, meaning cpu_is_hotpluggable() will return false, as > > get_cpu_device() has returned NULL. > > Thought that looked odd earlier but didn't care enough to dig. > Seem unlikely state would persist for an unregistered cpu. > Great to see confirmation. Would it make sense to move this immedaitely after "LoongArch: Switch over to GENERIC_CPU_DEVICES" ? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
