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genirq/chip: Use lock guards where applicable

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Convert all lock/unlock pairs to guards and tidy up the code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250429065421.236248749@linutronix.de
This commit is contained in:
Thomas Gleixner 2025-04-29 08:55:17 +02:00
parent f71d7c45ed
commit e7c6542557
1 changed files with 8 additions and 16 deletions
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24
kernel/irq/chip.c
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@ -1049,25 +1049,21 @@ EXPORT_SYMBOL_GPL(irq_modify_status);
*/
void irq_cpu_online(void)
{
struct irq_desc *desc;
struct irq_chip *chip;
unsigned long flags;
unsigned int irq;
for_each_active_irq(irq) {
desc = irq_to_desc(irq);
struct irq_desc *desc = irq_to_desc(irq);
struct irq_chip *chip;
if (!desc)
continue;
raw_spin_lock_irqsave(&desc->lock, flags);
guard(raw_spinlock_irqsave)(&desc->lock);
chip = irq_data_get_irq_chip(&desc->irq_data);
if (chip && chip->irq_cpu_online &&
(!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
!irqd_irq_disabled(&desc->irq_data)))
chip->irq_cpu_online(&desc->irq_data);
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
}
@ -1079,25 +1075,21 @@ void irq_cpu_online(void)
*/
void irq_cpu_offline(void)
{
struct irq_desc *desc;
struct irq_chip *chip;
unsigned long flags;
unsigned int irq;
for_each_active_irq(irq) {
desc = irq_to_desc(irq);
struct irq_desc *desc = irq_to_desc(irq);
struct irq_chip *chip;
if (!desc)
continue;
raw_spin_lock_irqsave(&desc->lock, flags);
guard(raw_spinlock_irqsave)(&desc->lock);
chip = irq_data_get_irq_chip(&desc->irq_data);
if (chip && chip->irq_cpu_offline &&
(!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
!irqd_irq_disabled(&desc->irq_data)))
chip->irq_cpu_offline(&desc->irq_data);
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
}
#endif