Commit 18eefedf authored by KOSAKI Motohiro's avatar KOSAKI Motohiro Committed by Ingo Molnar

irq: simplify for_each_irq_desc() usage

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: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 26ddd8d5
......@@ -1345,8 +1345,6 @@ void __setup_vector_irq(int cpu)
/* Mark the inuse vectors */
for_each_irq_desc(irq, desc) {
if (!desc)
continue;
cfg = desc->chip_data;
if (!cpu_isset(cpu, cfg->domain))
continue;
......@@ -1730,8 +1728,6 @@ __apicdebuginit(void) print_IO_APIC(void)
for_each_irq_desc(irq, desc) {
struct irq_pin_list *entry;
if (!desc)
continue;
cfg = desc->chip_data;
entry = cfg->irq_2_pin;
if (!entry)
......@@ -2378,9 +2374,6 @@ static void ir_irq_migration(struct work_struct *work)
struct irq_desc *desc;
for_each_irq_desc(irq, desc) {
if (!desc)
continue;
if (desc->status & IRQ_MOVE_PENDING) {
unsigned long flags;
......@@ -2671,9 +2664,6 @@ static inline void init_IO_APIC_traps(void)
* 0x80, because int 0x80 is hm, kind of importantish. ;)
*/
for_each_irq_desc(irq, desc) {
if (!desc)
continue;
cfg = desc->chip_data;
if (IO_APIC_IRQ(irq) && cfg && !cfg->vector) {
/*
......
......@@ -142,9 +142,6 @@ static void init_evtchn_cpu_bindings(void)
/* By default all event channels notify CPU#0. */
for_each_irq_desc(i, desc) {
if (!desc)
continue;
desc->affinity = cpumask_of_cpu(0);
}
#endif
......
......@@ -22,10 +22,14 @@ extern struct irq_desc *irq_to_desc(unsigned int irq);
# define for_each_irq_desc(irq, desc) \
for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
irq++, desc = irq_to_desc(irq))
irq++, desc = irq_to_desc(irq)) \
if (desc)
# define for_each_irq_desc_reverse(irq, desc) \
for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
irq--, desc = irq_to_desc(irq))
irq--, desc = irq_to_desc(irq)) \
if (desc)
#endif /* CONFIG_GENERIC_HARDIRQS */
......
......@@ -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;
......
......@@ -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);
}
}
......
......@@ -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;
......
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