x86/irq: Remove function apic_set_affinity()

Now there's no user of apic_set_affinity(), so remove it.  Also rename
vector_set_affinity() to apic_set_affinity() for consistency.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/1428978610-28986-25-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 3 insertions, 39 deletions

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 9a797682fef5..727c62378a65 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -198,8 +198,6 @@ static inline void irq_complete_move(struct irq_cfg *c) { }
 #endif
 
 extern void apic_ack_edge(struct irq_data *data);
-extern int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-                             unsigned int *dest_id);
 #else   /*  CONFIG_X86_LOCAL_APIC */
 static inline void lock_vector_lock(void) {}
 static inline void unlock_vector_lock(void) {}
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index d52af4d805db..1aea62d60cf2 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -463,42 +463,8 @@ void apic_ack_edge(struct irq_data *data)
         ack_APIC_irq();
 }
 
-/*
- * Either sets data->affinity to a valid value, and returns
- * ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
- * leaves data->affinity untouched.
- */
-int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-                      unsigned int *dest_id)
-{
-        struct irq_cfg *cfg = irqd_cfg(data);
-        unsigned int irq = data->irq;
-        int err;
-
-        if (!config_enabled(CONFIG_SMP))
-                return -EPERM;
-
-        if (!cpumask_intersects(mask, cpu_online_mask))
-                return -EINVAL;
-
-        err = assign_irq_vector(irq, cfg, mask);
-        if (err)
-                return err;
-
-        err = apic->cpu_mask_to_apicid_and(mask, cfg->domain, dest_id);
-        if (err) {
-                if (assign_irq_vector(irq, cfg, data->affinity))
-                        pr_err("Failed to recover vector for irq %d\n", irq);
-                return err;
-        }
-
-        cpumask_copy(data->affinity, mask);
-
-        return 0;
-}
-
-static int vector_set_affinity(struct irq_data *irq_data,
-                               const struct cpumask *dest, bool force)
+static int apic_set_affinity(struct irq_data *irq_data,
+                             const struct cpumask *dest, bool force)
 {
         struct irq_cfg *cfg = irq_data->chip_data;
         int err, irq = irq_data->irq;
@@ -523,7 +489,7 @@ static int vector_set_affinity(struct irq_data *irq_data,
 
 static struct irq_chip lapic_controller = {
         .irq_ack                = apic_ack_edge,
-        .irq_set_affinity       = vector_set_affinity,
+        .irq_set_affinity       = apic_set_affinity,
         .irq_retrigger          = apic_retrigger_irq,
 };