diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index b994cc84aa7e0f0654775f82b286c77d28d9d621..8d741e65ff64e4583dc8408e3d76b54fbc441b10 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1477,8 +1477,7 @@ void __init bsp_end_local_APIC_setup(void) * Now that local APIC setup is completed for BP, configure the fault * handling for interrupt remapping. */ - if (irq_remapping_enabled) - irq_remap_enable_fault_handling(); + irq_remap_enable_fault_handling(); } @@ -2251,8 +2250,7 @@ static int lapic_suspend(void) local_irq_save(flags); disable_local_APIC(); - if (irq_remapping_enabled) - irq_remapping_disable(); + irq_remapping_disable(); local_irq_restore(flags); return 0; @@ -2320,8 +2318,7 @@ static void lapic_resume(void) apic_write(APIC_ESR, 0); apic_read(APIC_ESR); - if (irq_remapping_enabled) - irq_remapping_reenable(x2apic_mode); + irq_remapping_reenable(x2apic_mode); local_irq_restore(flags); } diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index faf85d6e33fe0bb3dde0c229570fac156d9e9798..19381b90e619175028fdabfb806ffe791d3fed19 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -87,7 +87,9 @@ int __init irq_remapping_enable(void) void irq_remapping_disable(void) { - if (!remap_ops || !remap_ops->disable) + if (!irq_remapping_enabled || + !remap_ops || + !remap_ops->disable) return; remap_ops->disable(); @@ -95,7 +97,9 @@ void irq_remapping_disable(void) int irq_remapping_reenable(int mode) { - if (!remap_ops || !remap_ops->reenable) + if (!irq_remapping_enabled || + !remap_ops || + !remap_ops->reenable) return 0; return remap_ops->reenable(mode); @@ -103,6 +107,9 @@ int irq_remapping_reenable(int mode) int __init irq_remap_enable_fault_handling(void) { + if (!irq_remapping_enabled) + return 0; + if (!remap_ops || !remap_ops->enable_faulting) return -ENODEV;