On 11/7/23 20:30, Russell King (Oracle) wrote:

From: James Morse <james.morse@arm.com>

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@arm.com>
Signed-off-by: Russell King (Oracle) <redacted>
----
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 <redacted>


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel