x86/vector: Compile SMP only code conditionally
No point in compiling this for UP.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213155.603191841@linutronix.de
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 88219b8..17d7d7f 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -450,6 +450,7 @@
return arch_early_ioapic_init();
}
+#ifdef CONFIG_SMP
/* Temporary hack to keep things working */
static void vector_update_shutdown_irqs(void)
{
@@ -517,6 +518,25 @@
unlock_vector_lock();
}
+static int apic_set_affinity(struct irq_data *irqd,
+ const struct cpumask *dest, bool force)
+{
+ int err;
+
+ if (!IS_ENABLED(CONFIG_SMP))
+ return -EPERM;
+
+ if (!cpumask_intersects(dest, cpu_online_mask))
+ return -EINVAL;
+
+ err = assign_irq_vector(irqd, dest);
+ return err ? err : IRQ_SET_MASK_OK;
+}
+
+#else
+# define apic_set_affinity NULL
+#endif
+
static int apic_retrigger_irq(struct irq_data *irqd)
{
struct apic_chip_data *apicd = apic_chip_data(irqd);
@@ -536,21 +556,6 @@
ack_APIC_irq();
}
-static int apic_set_affinity(struct irq_data *irqd,
- const struct cpumask *dest, bool force)
-{
- int err;
-
- if (!IS_ENABLED(CONFIG_SMP))
- return -EPERM;
-
- if (!cpumask_intersects(dest, cpu_online_mask))
- return -EINVAL;
-
- err = assign_irq_vector(irqd, dest);
- return err ? err : IRQ_SET_MASK_OK;
-}
-
static struct irq_chip lapic_controller = {
.name = "APIC",
.irq_ack = apic_ack_edge,