From 7eb9ae0799b1e9f0b77733b432bc5f6f055b020b Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Thu, 14 Jun 2012 18:28:49 -0700 Subject: irq/apic: Use config_enabled(CONFIG_SMP) checks to clean up irq_set_affinity() for UP Move the ->irq_set_affinity() routines out of the #ifdef CONFIG_SMP sections and use config_enabled(CONFIG_SMP) checks inside those routines. Thus making those routines simple null stubs for !CONFIG_SMP and retaining those routines with no additional runtime overhead for CONFIG_SMP kernels. Cleans up the ifdef CONFIG_SMP in and around routines related to irq_set_affinity in io_apic and irq_remapping subsystems. Signed-off-by: Suresh Siddha Cc: torvalds@linux-foundation.org Cc: joerg.roedel@amd.com Cc: Sam Ravnborg Cc: Paul Gortmaker Link: http://lkml.kernel.org/r/1339723729.3475.63.camel@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar --- drivers/iommu/intel_irq_remapping.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers/iommu/intel_irq_remapping.c') diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index 853902a1b7db..e0b18f3ae9a8 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -902,7 +902,6 @@ static int intel_setup_ioapic_entry(int irq, return 0; } -#ifdef CONFIG_SMP /* * Migrate the IO-APIC irq in the presence of intr-remapping. * @@ -926,6 +925,9 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask, struct irte irte; int err; + if (!config_enabled(CONFIG_SMP)) + return -EINVAL; + if (!cpumask_intersects(mask, cpu_online_mask)) return -EINVAL; @@ -963,7 +965,6 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask, cpumask_copy(data->affinity, mask); return 0; } -#endif static void intel_compose_msi_msg(struct pci_dev *pdev, unsigned int irq, unsigned int dest, @@ -1065,9 +1066,7 @@ struct irq_remap_ops intel_irq_remap_ops = { .reenable = reenable_irq_remapping, .enable_faulting = enable_drhd_fault_handling, .setup_ioapic_entry = intel_setup_ioapic_entry, -#ifdef CONFIG_SMP .set_affinity = intel_ioapic_set_affinity, -#endif .free_irq = free_irte, .compose_msi_msg = intel_compose_msi_msg, .msi_alloc_irq = intel_msi_alloc_irq, -- cgit v1.2.3