x86, apic: Remove multi_timer_check callback

Since commit b5660ba76b41 ("x86, platforms: Remove NUMAQ") removed NUMAQ,
the multi_timer_check() apic callback has been obsolete.  Remove it.

Signed-off-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1407302351120.17503@chino.kir.corp.google.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/x86/include/asm/apic.h

@@ -300,7 +300,6 @@ struct apic {
 	void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
 
 	void (*setup_apic_routing)(void);
-	int (*multi_timer_check)(int apic, int irq);
 	int (*cpu_present_to_apicid)(int mps_cpu);
 	void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
 	void (*setup_portio_remap)(void);

arch/x86/kernel/apic/apic_flat_64.c

@@ -174,7 +174,6 @@ static struct apic apic_flat =  {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,
@@ -285,7 +284,6 @@ static struct apic apic_physflat =  {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/apic_noop.c

@@ -130,7 +130,6 @@ struct apic apic_noop = {
 
 	.ioapic_phys_id_map		= default_ioapic_phys_id_map,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= physid_set_mask_of_physid,

arch/x86/kernel/apic/apic_numachip.c

@@ -223,7 +223,6 @@ static const struct apic apic_numachip __refconst = {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/bigsmp_32.c

@@ -169,7 +169,6 @@ static struct apic apic_bigsmp = {
 
 	.ioapic_phys_id_map		= bigsmp_ioapic_phys_id_map,
 	.setup_apic_routing		= bigsmp_setup_apic_routing,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= bigsmp_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= physid_set_mask_of_physid,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/io_apic.c

@@ -3882,14 +3882,6 @@ int mp_irqdomain_map(struct irq_domain *domain, unsigned int virq,
 	struct mp_pin_info *info = mp_pin_info(ioapic, hwirq);
 	struct io_apic_irq_attr attr;
 
-	/*
-	 * Skip the timer IRQ if there's a quirk handler installed and if it
-	 * returns 1:
-	 */
-	if (apic->multi_timer_check &&
-	    apic->multi_timer_check(ioapic, virq))
-		return 0;
-
 	/* Get default attribute if not set by caller yet */
 	if (!info->set) {
 		u32 gsi = mp_pin_to_gsi(ioapic, hwirq);
@@ -3919,14 +3911,6 @@ void mp_irqdomain_unmap(struct irq_domain *domain, unsigned int virq)
 	int ioapic = (int)(long)domain->host_data;
 	int pin = (int)data->hwirq;
 
-	/*
-	 * Skip the timer IRQ if there's a quirk handler installed and if it
-	 * returns 1:
-	 */
-	if (apic->multi_timer_check &&
-	    apic->multi_timer_check(ioapic, virq))
-		return;
-
 	ioapic_mask_entry(ioapic, pin);
 	__remove_pin_from_irq(cfg, ioapic, pin);
 	WARN_ON(cfg->irq_2_pin != NULL);

arch/x86/kernel/apic/probe_32.c

@@ -94,7 +94,6 @@ static struct apic apic_default = {
 
 	.ioapic_phys_id_map		= default_ioapic_phys_id_map,
 	.setup_apic_routing		= setup_apic_flat_routing,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= physid_set_mask_of_physid,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/x2apic_cluster.c

@@ -255,7 +255,6 @@ static struct apic apic_x2apic_cluster = {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/x2apic_phys.c

@@ -109,7 +109,6 @@ static struct apic apic_x2apic_phys = {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,

arch/x86/kernel/apic/x2apic_uv_x.c

@@ -371,7 +371,6 @@ static struct apic __refdata apic_x2apic_uv_x = {
 
 	.ioapic_phys_id_map		= NULL,
 	.setup_apic_routing		= NULL,
-	.multi_timer_check		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= NULL,
 	.setup_portio_remap		= NULL,