genirq/manage: Rework irq_percpu_is_enabled()

Use the new guards to get and lock the interrupt descriptor 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/20250429065422.376836282@linutronix.de

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index e27fa4e2fd1e00b07a752173e5f7503129c3ffd3..3a491c7c06796c598cce68f8ba4ea1cfbb20ec8b 100644 (file)
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -2322,19 +2322,9 @@ void enable_percpu_nmi(unsigned int irq, unsigned int type)
  */
 bool irq_percpu_is_enabled(unsigned int irq)
 {
-       unsigned int cpu = smp_processor_id();
-       struct irq_desc *desc;
-       unsigned long flags;
-       bool is_enabled;
-
-       desc = irq_get_desc_lock(irq, &flags, IRQ_GET_DESC_CHECK_PERCPU);
-       if (!desc)
-               return false;
-
-       is_enabled = cpumask_test_cpu(cpu, desc->percpu_enabled);
-       irq_put_desc_unlock(desc, flags);
-
-       return is_enabled;
+       scoped_irqdesc_get_and_lock(irq, IRQ_GET_DESC_CHECK_PERCPU)
+               return cpumask_test_cpu(smp_processor_id(), scoped_irqdesc->percpu_enabled);
+       return false;
 }
 EXPORT_SYMBOL_GPL(irq_percpu_is_enabled);