irq: introduce nr_irqs
at this point nr_irqs is equal NR_IRQS
convert a few easy users from NR_IRQS to dynamic nr_irqs.
v2: according to Eric, we need to take care of arch without generic_hardirqs
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index 533068c..c689e98 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -38,7 +38,7 @@
* something may have generated an irq long ago and we want to
* flush such a longstanding irq before considering it as spurious.
*/
- for (i = NR_IRQS-1; i > 0; i--) {
+ for (i = nr_irqs-1; i > 0; i--) {
desc = irq_desc + i;
spin_lock_irq(&desc->lock);
@@ -68,7 +68,7 @@
* (we must startup again here because if a longstanding irq
* happened in the previous stage, it may have masked itself)
*/
- for (i = NR_IRQS-1; i > 0; i--) {
+ for (i = nr_irqs-1; i > 0; i--) {
desc = irq_desc + i;
spin_lock_irq(&desc->lock);
@@ -89,7 +89,7 @@
* Now filter out any obviously spurious interrupts
*/
mask = 0;
- for (i = 0; i < NR_IRQS; i++) {
+ for (i = 0; i < nr_irqs; i++) {
unsigned int status;
desc = irq_desc + i;
@@ -130,7 +130,7 @@
int i;
mask = 0;
- for (i = 0; i < NR_IRQS; i++) {
+ for (i = 0; i < nr_irqs; i++) {
struct irq_desc *desc = irq_desc + i;
unsigned int status;
@@ -173,7 +173,7 @@
{
int i, irq_found = 0, nr_irqs = 0;
- for (i = 0; i < NR_IRQS; i++) {
+ for (i = 0; i < nr_irqs; i++) {
struct irq_desc *desc = irq_desc + i;
unsigned int status;
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 5203a59..bba66e0 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -27,7 +27,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
WARN(1, KERN_ERR "Trying to initialize invalid IRQ%d\n", irq);
return;
}
@@ -60,7 +60,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
WARN(1, KERN_ERR "Trying to cleanup invalid IRQ%d\n", irq);
return;
}
@@ -92,7 +92,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
WARN(1, KERN_ERR "Trying to install chip for IRQ%d\n", irq);
return -EINVAL;
}
@@ -121,7 +121,7 @@
unsigned long flags;
int ret = -ENXIO;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR "Trying to set irq type for IRQ%d\n", irq);
return -ENODEV;
}
@@ -149,7 +149,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR
"Trying to install controller data for IRQ%d\n", irq);
return -EINVAL;
@@ -175,7 +175,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR
"Trying to install msi data for IRQ%d\n", irq);
return -EINVAL;
@@ -201,7 +201,7 @@
struct irq_desc *desc = irq_desc + irq;
unsigned long flags;
- if (irq >= NR_IRQS || !desc->chip) {
+ if (irq >= nr_irqs || !desc->chip) {
printk(KERN_ERR "BUG: bad set_irq_chip_data(IRQ#%d)\n", irq);
return -EINVAL;
}
@@ -545,7 +545,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR
"Trying to install type control for IRQ%d\n", irq);
return;
@@ -610,7 +610,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR "Trying to mark IRQ%d non-probeable\n", irq);
return;
@@ -628,7 +628,7 @@
struct irq_desc *desc;
unsigned long flags;
- if (irq >= NR_IRQS) {
+ if (irq >= nr_irqs) {
printk(KERN_ERR "Trying to mark IRQ%d probeable\n", irq);
return;
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index f4c8a03..e9d022c 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -47,6 +47,7 @@
*
* Controller mappings for all interrupt sources:
*/
+int nr_irqs = NR_IRQS;
struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
[0 ... NR_IRQS-1] = {
.status = IRQ_DISABLED,
@@ -265,7 +266,7 @@
{
int i;
- for (i = 0; i < NR_IRQS; i++)
+ for (i = 0; i < nr_irqs; i++)
lockdep_set_class(&irq_desc[i].lock, &irq_desc_lock_class);
}
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index d363f32..d5a4333 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -34,7 +34,7 @@
struct irq_desc *desc = irq_desc + irq;
unsigned int status;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return;
do {
@@ -143,7 +143,7 @@
struct irq_desc *desc = irq_desc + irq;
unsigned long flags;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return;
spin_lock_irqsave(&desc->lock, flags);
@@ -171,7 +171,7 @@
{
struct irq_desc *desc = irq_desc + irq;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return;
disable_irq_nosync(irq);
@@ -214,7 +214,7 @@
struct irq_desc *desc = irq_desc + irq;
unsigned long flags;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return;
spin_lock_irqsave(&desc->lock, flags);
@@ -290,7 +290,7 @@
{
struct irqaction *action;
- if (irq >= NR_IRQS || irq_desc[irq].status & IRQ_NOREQUEST)
+ if (irq >= nr_irqs || irq_desc[irq].status & IRQ_NOREQUEST)
return 0;
action = irq_desc[irq].action;
@@ -356,7 +356,7 @@
int shared = 0;
int ret;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return -EINVAL;
if (desc->chip == &no_irq_chip)
@@ -515,7 +515,7 @@
unsigned long flags;
WARN_ON(in_interrupt());
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return;
desc = irq_desc + irq;
@@ -630,7 +630,7 @@
*/
if ((irqflags & IRQF_SHARED) && !dev_id)
return -EINVAL;
- if (irq >= NR_IRQS)
+ if (irq >= nr_irqs)
return -EINVAL;
if (irq_desc[irq].status & IRQ_NOREQUEST)
return -EINVAL;
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index a09dd29..e5225a6 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -240,7 +240,7 @@
/*
* Create entries for all existing IRQs.
*/
- for (i = 0; i < NR_IRQS; i++)
+ for (i = 0; i < nr_irqs; i++)
register_irq_proc(i);
}
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index a804679..cba8aa5 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -33,8 +33,8 @@
struct irq_desc *desc;
int irq;
- while (!bitmap_empty(irqs_resend, NR_IRQS)) {
- irq = find_first_bit(irqs_resend, NR_IRQS);
+ while (!bitmap_empty(irqs_resend, nr_irqs)) {
+ irq = find_first_bit(irqs_resend, nr_irqs);
clear_bit(irq, irqs_resend);
desc = irq_desc + irq;
local_irq_disable();
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 19fe9d6..e26ca1e 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -91,7 +91,7 @@
int i;
int ok = 0;
- for (i = 1; i < NR_IRQS; i++) {
+ for (i = 1; i < nr_irqs; i++) {
struct irq_desc *desc = irq_desc + i;
if (i == irq) /* Already tried */
@@ -107,7 +107,7 @@
static void poll_spurious_irqs(unsigned long dummy)
{
int i;
- for (i = 1; i < NR_IRQS; i++) {
+ for (i = 1; i < nr_irqs; i++) {
struct irq_desc *desc = irq_desc + i;
unsigned int status;