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Date: Thu, 30 Nov 2023 16:50:11 +0000
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Russell King <rmk+kernel@armlinux.org.uk>
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Subject: Re: [PATCH 07/21] drivers: base: Allow parts of GENERIC_CPU_DEVICES
 to be overridden
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On Tue, 21 Nov 2023 13:44:25 +0000
Russell King <rmk+kernel@armlinux.org.uk> wrote:

> From: James Morse <james.morse@arm.com>
> 
> 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@arm.com>
> Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
> Reviewed-by: Gavin Shan <gshan@redhat.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>