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irq: simplify for_each_irq_desc() usage

Browse source 
Impact: cleanup

all for_each_irq_desc() usage point have !desc check.
then its check can move into for_each_irq_desc() macro.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
KOSAKI Motohiro 2008-12-26 12:29:48 +09:00 • committed by Ingo Molnar
commit 18eefedfe8
6 changed files with 6 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

15
kernel/irq/autoprobe.c
View file

@ -40,9 +40,6 @@ unsigned long probe_irq_on(void)
* flush such a longstanding irq before considering it as spurious.
*/
for_each_irq_desc_reverse(i, desc) {
if (!desc)
continue;
spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
/*
@ -71,9 +68,6 @@ unsigned long probe_irq_on(void)
* happened in the previous stage, it may have masked itself)
*/
for_each_irq_desc_reverse(i, desc) {
if (!desc)
continue;
spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
desc->status |= IRQ_AUTODETECT | IRQ_WAITING;
@ -92,9 +86,6 @@ unsigned long probe_irq_on(void)
* Now filter out any obviously spurious interrupts
*/
for_each_irq_desc(i, desc) {
if (!desc)
continue;
spin_lock_irq(&desc->lock);
status = desc->status;
@ -133,9 +124,6 @@ unsigned int probe_irq_mask(unsigned long val)
int i;
for_each_irq_desc(i, desc) {
if (!desc)
continue;
spin_lock_irq(&desc->lock);
status = desc->status;
@ -178,9 +166,6 @@ int probe_irq_off(unsigned long val)
unsigned int status;
for_each_irq_desc(i, desc) {
if (!desc)
continue;
spin_lock_irq(&desc->lock);
status = desc->status;

3
kernel/irq/handle.c
View file

@ -437,9 +437,6 @@ void early_init_irq_lock_class(void)
int i;
for_each_irq_desc(i, desc) {
if (!desc)
continue;
lockdep_set_class(&desc->lock, &irq_desc_lock_class);
}
}

5
kernel/irq/spurious.c
View file

@ -91,9 +91,6 @@ static int misrouted_irq(int irq)
int i, ok = 0;
for_each_irq_desc(i, desc) {
if (!desc)
continue;
if (!i)
continue;
@ -115,8 +112,6 @@ static void poll_spurious_irqs(unsigned long dummy)
for_each_irq_desc(i, desc) {
unsigned int status;
if (!desc)
continue;
if (!i)
continue;