Commit 404a2018 authored Jan 26, 2024 by Russell King (Oracle) Committed by liwei Jan 26, 2024

riscv: convert to use arch_cpu_is_hotpluggable()

mainline inclusion
from mainline-v6.8-rc1
commit 00bf4641201092fc06aa51f7dcf45d1ea4d3d4f7
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8XMTL


CVE: NA

----------------------------------

Convert riscv to use the arch_cpu_is_hotpluggable() helper rather than
arch_register_cpu().

Acked-by: Palmer Dabbelt <palmer@rivosinc.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>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com> # On HiFive Unmatched
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/E1r5R4L-00Ct0d-To@rmk-PC.armlinux.org.uk


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: liwei <liwei728@huawei.com>

parent e785b5a3

arch/riscv/kernel/setup.c

+2 −5

Original line number	Diff line number	Diff line
		@@ -306,12 +306,9 @@ void __init setup_arch(char **cmdline_p)
		riscv_set_dma_cache_alignment();
		}

		int arch_register_cpu(int cpu)
		bool arch_cpu_is_hotpluggable(int cpu)
		{
		struct cpu *c = &per_cpu(cpu_devices, cpu);

		c->hotpluggable = cpu_has_hotplug(cpu);
		return register_cpu(c, cpu);
		return cpu_has_hotplug(cpu);
		}

		void free_initmem(void)