On 11/22/23 00:44, Russell King (Oracle) wrote:
From: James Morse <james.morse@xxxxxxx> Add arch_unregister_cpu() to allow the ACPI machinery to call unregister_cpu(). This is enough for arm64, riscv and loongarch, but needs to be overridden by x86 and ia64 who need to do more work. CC: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> Signed-off-by: James Morse <james.morse@xxxxxxx> Reviewed-by: Shaoqin Huang <shahuang@xxxxxxxxxx> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> --- An open question remains from the RFC v2 posting: should we provide a __weak stub for !HOTPLUG_CPU as well, since in later patches ACPI may reference this if the compiler doesn't optimise as we expect? Changes since v1: * Added CONFIG_HOTPLUG_CPU ifdeffery around unregister_cpu Changes since RFC v2: * Move earlier in the series --- drivers/base/cpu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>
