diff options
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 00327fa74b01..48099c6e1e4a 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -85,7 +85,6 @@ static int nr_ipi __read_mostly = NR_IPI; static struct irq_desc *ipi_desc[MAX_IPI] __read_mostly; static void ipi_setup(int cpu); -static void ipi_teardown(int cpu); static DECLARE_COMPLETION(cpu_running); @@ -236,6 +235,17 @@ int platform_can_hotplug_cpu(unsigned int cpu) return cpu != 0; } +static void ipi_teardown(int cpu) +{ + int i; + + if (WARN_ON_ONCE(!ipi_irq_base)) + return; + + for (i = 0; i < nr_ipi; i++) + disable_percpu_irq(ipi_irq_base + i); +} + /* * __cpu_disable runs on the processor to be shutdown. */ @@ -531,7 +541,12 @@ void show_ipi_list(struct seq_file *p, int prec) unsigned int cpu, i; for (i = 0; i < NR_IPI; i++) { - unsigned int irq = irq_desc_get_irq(ipi_desc[i]); + unsigned int irq; + + if (!ipi_desc[i]) + continue; + + irq = irq_desc_get_irq(ipi_desc[i]); seq_printf(p, "%*s%u: ", prec - 1, "IPI", i); for_each_online_cpu(cpu) @@ -707,17 +722,6 @@ static void ipi_setup(int cpu) enable_percpu_irq(ipi_irq_base + i, 0); } -static void ipi_teardown(int cpu) -{ - int i; - - if (WARN_ON_ONCE(!ipi_irq_base)) - return; - - for (i = 0; i < nr_ipi; i++) - disable_percpu_irq(ipi_irq_base + i); -} - void __init set_smp_ipi_range(int ipi_base, int n) { int i; |