[RFC PATCH v2 03/35] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden

[Russell King (Oracle)]

On Wed, Sep 13, 2023 at 04:37:51PM +0000, James Morse wrote:
> Architectures often have extra per-cpu work that needs doing
> before a CPU is registered, often to determine if a CPU is
> hotpluggable.
> 
> To allow the ACPI architectures to use GENERIC_CPU_DEVICES, move
> the cpu_register() call into arch_register_cpu(), which is made __weak
> so architectures with extra work can override it.
> This aligns with the way x86, ia64 and loongarch register hotplug CPUs
> when they become present.
> 
> Signed-off-by: James Morse <james.morse at arm.com>

LGTM.

Reviewed-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>

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