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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>
This commit is contained in:
Yinghai Lu 2008-08-19 20:49:47 -07:00 committed by Ingo Molnar
parent 6da55c3e8d
commit 85c0f90978
11 changed files with 39 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/m68k/kernel/ints.c
View File

@ -46,6 +46,8 @@
#include <asm/q40ints.h>
#endif
int nr_irqs = NR_IRQS;
extern u32 auto_irqhandler_fixup[];
extern u32 user_irqhandler_fixup[];
extern u16 user_irqvec_fixup[];

2
arch/s390/kernel/irq.c
View File

@ -17,6 +17,8 @@
#include <linux/proc_fs.h>
#include <linux/profile.h>
int nr_irqs = NR_IRQS;
/*
* show_interrupts is needed by /proc/interrupts.
*/

3
arch/sparc/kernel/irq.c
View File

@ -55,6 +55,9 @@
#define SMP_NOP2
#define SMP_NOP3
#endif /* SMP */
int nr_irqs = NR_IRQS;
unsigned long __raw_local_irq_save(void)
{
unsigned long retval;

2
include/linux/interrupt.h
View File

@ -15,6 +15,8 @@
#include <asm/ptrace.h>
#include <asm/system.h>
extern int nr_irqs;
/*
* These correspond to the IORESOURCE_IRQ_* defines in
* linux/ioport.h to select the interrupt line behaviour. When

10
kernel/irq/autoprobe.c
View File

@ -38,7 +38,7 @@ unsigned long probe_irq_on(void)
* 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 @@ unsigned long probe_irq_on(void)
* (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 @@ unsigned long probe_irq_on(void)
* 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 @@ unsigned int probe_irq_mask(unsigned long val)
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 probe_irq_off(unsigned long val)
{
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;

20
kernel/irq/chip.c
View File

@ -27,7 +27,7 @@ void dynamic_irq_init(unsigned int irq)
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 @@ void dynamic_irq_cleanup(unsigned int irq)
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 @@ int set_irq_chip(unsigned int irq, struct irq_chip *chip)
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 @@ int set_irq_type(unsigned int irq, unsigned int type)
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 @@ int set_irq_data(unsigned int irq, void *data)
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 @@ int set_irq_msi(unsigned int irq, struct msi_desc *entry)
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 @@ int set_irq_chip_data(unsigned int irq, void *data)
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 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
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 @@ void __init set_irq_noprobe(unsigned int irq)
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 @@ void __init set_irq_probe(unsigned int irq)
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;

3
kernel/irq/handle.c
View File

@ -47,6 +47,7 @@ handle_bad_irq(unsigned int irq, struct irq_desc *desc)
*
* 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 @@ void early_init_irq_lock_class(void)
{
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);
}

16
kernel/irq/manage.c
View File

@ -34,7 +34,7 @@ void synchronize_irq(unsigned int irq)
struct irq_desc *desc = irq_desc + irq;
unsigned int status;
if (irq >= NR_IRQS)
if (irq >= nr_irqs)
return;
do {
@ -143,7 +143,7 @@ void disable_irq_nosync(unsigned int irq)
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 @@ void disable_irq(unsigned int irq)
{
struct irq_desc *desc = irq_desc + irq;
if (irq >= NR_IRQS)
if (irq >= nr_irqs)
return;
disable_irq_nosync(irq);
@ -214,7 +214,7 @@ void enable_irq(unsigned int irq)
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 @@ int can_request_irq(unsigned int irq, unsigned long irqflags)
{
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 setup_irq(unsigned int irq, struct irqaction *new)
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 @@ void free_irq(unsigned int irq, void *dev_id)
unsigned long flags;
WARN_ON(in_interrupt());
if (irq >= NR_IRQS)
if (irq >= nr_irqs)
return;
desc = irq_desc + irq;
@ -630,7 +630,7 @@ int request_irq(unsigned int irq, irq_handler_t handler,
*/
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;

2
kernel/irq/proc.c
View File

@ -240,7 +240,7 @@ void init_irq_proc(void)
/*
* Create entries for all existing IRQs.
*/
for (i = 0; i < NR_IRQS; i++)
for (i = 0; i < nr_irqs; i++)
register_irq_proc(i);
}

4
kernel/irq/resend.c
View File

@ -33,8 +33,8 @@ static void resend_irqs(unsigned long arg)
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();

4
kernel/irq/spurious.c
View File

@ -91,7 +91,7 @@ static int misrouted_irq(int irq)
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 int misrouted_irq(int irq)
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;