[PATCH v2 2/3] genirq: use irqd_get_parent_data() helper in __irq_get_irqchip_state()

[Kemeng Shi]

__irq_get_irqchip_state() manually dereferences parent_data under
CONFIG_IRQ_DOMAIN_HIERARCHY and sets it to NULL otherwise. This
pattern is already covered by irqd_get_parent_data(), which handles
the conditional internally. Replace the open-coded logic with the
helper to reduce duplication and improve readability.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
 kernel/irq/manage.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 2e8072437826..c03844c82a97 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -2692,11 +2692,7 @@ static int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state
 			return -ENODEV;
 		if (chip->irq_get_irqchip_state)
 			break;
-#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
-		data = data->parent_data;
-#else
-		data = NULL;
-#endif
+		data = irqd_get_parent_data(data);
 	} while (data);
 
 	if (data)
-- 
2.36.1