x86: ARRAY_SIZE cleanup

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/smpboot_64.c

@@ -388,7 +388,7 @@ static void inquire_remote_apic(int apicid)
 
 	printk(KERN_INFO "Inquiring remote APIC #%d...\n", apicid);
 
-	for (i = 0; i < sizeof(regs) / sizeof(*regs); i++) {
+	for (i = 0; i < ARRAY_SIZE(regs); i++) {
 		printk("... APIC #%d %s: ", apicid, names[i]);
 
 		/*