On 11/7/23 20:30, Russell King (Oracle) wrote:
From: James Morse <james.morse@xxxxxxx>
Now that GENERIC_CPU_DEVICES calls arch_register_cpu(), which can be
overridden by the arch code, switch over to this to allow common code
to choose when the register_cpu() call is made.
x86's struct cpus come from struct x86_cpu, which has no other members
or users. Remove this and use the version defined by common code.
This is an intermediate step to the logic being moved to drivers/acpi,
where GENERIC_CPU_DEVICES will do the work when booting with acpi=off.
This patch also has the effect of moving the registration of CPUs from
subsys to driver core initialisation, prior to any initcalls running.
Signed-off-by: James Morse <james.morse@xxxxxxx>
Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
----
Changes since RFC:
* Fixed the second copy of arch_register_cpu() used for non-hotplug
Changes since RFC v2:
* Remove duplicate of the weak generic arch_register_cpu(), spotted
by Jonathan Cameron. Add note about initialisation order change.
Changes since RFC v3:
* Adapt to removal of EXPORT_SYMBOL()s
---
arch/x86/Kconfig | 1 +
arch/x86/include/asm/cpu.h | 4 ----
arch/x86/kernel/topology.c | 27 ++++-----------------------
3 files changed, 5 insertions(+), 27 deletions(-)
Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>
