[MIPS] Add topology_init. (1e35aaba) · Commits · 戴 / test

A recent patch introduced cpu topology in sysfs. When you run a kernel with SMP and sysfs enabled, you now get an Oops on boot. The following patch fixes that by adding topology_init to arch/mips/kernel/smp.c. The code is copied from arch/s390/kernel/smp.c. Signed-off-by:

Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by:

Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/smp.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@
		#include <linux/timex.h>
		#include <linux/sched.h>
		#include <linux/cpumask.h>
		#include <linux/cpu.h>

		#include <asm/atomic.h>
		#include <asm/cpu.h>
		@@ -424,6 +425,25 @@ void flush_tlb_one(unsigned long vaddr)
		local_flush_tlb_one(vaddr);
		}

		static DEFINE_PER_CPU(struct cpu, cpu_devices);

		static int __init topology_init(void)
		{
		int cpu;
		int ret;

		for_each_cpu(cpu) {
		ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
		if (ret)
		printk(KERN_WARNING "topology_init: register_cpu %d "
		"failed (%d)\n", cpu, ret);
		}

		return 0;
		}

		subsys_initcall(topology_init);

		EXPORT_SYMBOL(flush_tlb_page);
		EXPORT_SYMBOL(flush_tlb_one);
		EXPORT_SYMBOL(cpu_data);

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