x86/apic: Remove pointless NULL initializations

Wasted space for no value.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest)

arch/x86/kernel/apic/apic_flat_64.c

@@ -87,9 +87,7 @@ static struct apic apic_flat __ro_after_init = {
 
 	.disable_esr			= 0,
 
-	.check_apicid_used		= NULL,
 	.init_apic_ldr			= default_init_apic_ldr,
-	.ioapic_phys_id_map		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.phys_pkg_id			= flat_phys_pkg_id,
 

arch/x86/kernel/apic/apic_noop.c

@@ -65,7 +65,6 @@ static void noop_apic_write(u32 reg, u32 val)
 struct apic apic_noop __ro_after_init = {
 	.name				= "noop",
 	.probe				= noop_probe,
-	.acpi_madt_oem_check		= NULL,
 
 	.delivery_mode			= APIC_DELIVERY_MODE_FIXED,
 	.dest_mode_logical		= true,
@@ -80,7 +79,6 @@ struct apic apic_noop __ro_after_init = {
 
 	.max_apic_id			= 0xFE,
 	.get_apic_id			= noop_get_apic_id,
-	.set_apic_id			= NULL,
 
 	.calc_dest_apicid		= apic_flat_calc_apicid,
 

arch/x86/kernel/apic/apic_numachip.c

@@ -227,8 +227,6 @@ static const struct apic apic_numachip1 __refconst = {
 
 	.disable_esr			= 0,
 
-	.check_apicid_used		= NULL,
-	.ioapic_phys_id_map		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.phys_pkg_id			= numachip_phys_pkg_id,
 
@@ -266,8 +264,6 @@ static const struct apic apic_numachip2 __refconst = {
 
 	.disable_esr			= 0,
 
-	.check_apicid_used		= NULL,
-	.ioapic_phys_id_map		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.phys_pkg_id			= numachip_phys_pkg_id,
 

arch/x86/kernel/apic/probe_32.c

@@ -48,7 +48,6 @@ static struct apic apic_default __ro_after_init = {
 
 	.max_apic_id			= 0xFE,
 	.get_apic_id			= default_get_apic_id,
-	.set_apic_id			= NULL,
 
 	.calc_dest_apicid		= apic_flat_calc_apicid,
 

arch/x86/kernel/apic/x2apic_phys.c

@@ -150,8 +150,6 @@ static struct apic apic_x2apic_phys __ro_after_init = {
 
 	.disable_esr			= 0,
 
-	.check_apicid_used		= NULL,
-	.ioapic_phys_id_map		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.phys_pkg_id			= x2apic_phys_pkg_id,
 

arch/x86/kernel/apic/x2apic_uv_x.c

@@ -811,8 +811,6 @@ static struct apic apic_x2apic_uv_x __ro_after_init = {
 
 	.disable_esr			= 0,
 
-	.check_apicid_used		= NULL,
-	.ioapic_phys_id_map		= NULL,
 	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.phys_pkg_id			= uv_phys_pkg_id,