x86: use NR_IRQS_LEGACY
Impact: cleanup
Introduce NR_IRQS_LEGACY instead of hard coded number.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 9de17f5..9870461 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -847,7 +847,7 @@
*/
static int EISA_ELCR(unsigned int irq)
{
- if (irq < 16) {
+ if (irq < NR_IRQS_LEGACY) {
unsigned int port = 0x4d0 + (irq >> 3);
return (inb(port) >> (irq & 7)) & 1;
}
@@ -1388,7 +1388,7 @@
}
ioapic_register_intr(irq, trigger);
- if (irq < 16)
+ if (irq < NR_IRQS_LEGACY)
disable_8259A_irq(irq);
ioapic_write_entry(apic, pin, entry);
@@ -2080,7 +2080,7 @@
struct irq_cfg *cfg;
spin_lock_irqsave(&ioapic_lock, flags);
- if (irq < 16) {
+ if (irq < NR_IRQS_LEGACY) {
disable_8259A_irq(irq);
if (i8259A_irq_pending(irq))
was_pending = 1;
@@ -2504,7 +2504,7 @@
* so default to an old-fashioned 8259
* interrupt if we can..
*/
- if (irq < 16)
+ if (irq < NR_IRQS_LEGACY)
make_8259A_irq(irq);
else
/* Strange. Oh, well.. */
@@ -3794,7 +3794,7 @@
/*
* IRQs < 16 are already in the irq_2_pin[] map
*/
- if (irq >= 16) {
+ if (irq >= NR_IRQS_LEGACY) {
cfg = desc->chip_data;
add_pin_to_irq_cpu(irq, cpu, ioapic, pin);
}
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c
index 5a5651b..6a92f47 100644
--- a/arch/x86/kernel/irqinit_32.c
+++ b/arch/x86/kernel/irqinit_32.c
@@ -68,7 +68,7 @@
/*
* 16 old-style INTA-cycle interrupts:
*/
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < NR_IRQS_LEGACY; i++) {
struct irq_desc *desc = irq_to_desc(i);
desc->status = IRQ_DISABLED;
diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c
index cd9f42d..40c1e62 100644
--- a/arch/x86/kernel/irqinit_64.c
+++ b/arch/x86/kernel/irqinit_64.c
@@ -142,7 +142,7 @@
init_bsp_APIC();
init_8259A(0);
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < NR_IRQS_LEGACY; i++) {
struct irq_desc *desc = irq_to_desc(i);
desc->status = IRQ_DISABLED;