x86/ioapic: Simplify setup_ioapic_ids_from_mpc_nocheck()

No need to go through APIC callbacks. It's already established that this is
an ancient APIC. So just copy the present mask and use the direct physid*
functions all over the place.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Link: https://lore.kernel.org/r/20240212154639.181901887@linutronix.de

arch/x86/kernel/apic/io_apic.c

@@ -1471,7 +1471,7 @@ static void __init setup_ioapic_ids_from_mpc_nocheck(void)
 	 * This is broken; anything with a real cpu count has to
 	 * circumvent this idiocy regardless.
 	 */
-	apic->ioapic_phys_id_map(&phys_cpu_present_map, &phys_id_present_map);
+	phys_id_present_map = phys_cpu_present_map;
 
 	/*
 	 * Set the IOAPIC ID to the value stored in the MPC table.
@@ -1496,8 +1496,7 @@ static void __init setup_ioapic_ids_from_mpc_nocheck(void)
 		 * system must have a unique ID or we get lots of nice
 		 * 'stuck on smp_invalidate_needed IPI wait' messages.
 		 */
-		if (apic->check_apicid_used(&phys_id_present_map,
-					    mpc_ioapic_id(ioapic_idx))) {
+		if (physid_isset(mpc_ioapic_id(ioapic_idx), phys_id_present_map)) {
 			pr_err(FW_BUG "IO-APIC#%d ID %d is already used!...\n",
 			       ioapic_idx, mpc_ioapic_id(ioapic_idx));
 			for (i = 0; i < broadcast_id; i++)