[PATCH] mailbox: qcom-ipcc: Use generic_handle_irq_safe()

Eric Chanudet
2022-09-09T16:22:31Z

PREEMPT_RT forces qcom-ipcc's handler to be threaded with interrupts
enabled, which triggers a warning in __handle_irq_event_percpu().

Use generic_handle_irq_safe() that can be called with or without
interrupts enabled instead.

Signed-off-by: Eric Chanudet <echanude@redhat.com>
---
drivers/mailbox/qcom-ipcc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c
index 31d58b7d55fe..be803f324a33 100644
--- a/drivers/mailbox/qcom-ipcc.c
+++ b/drivers/mailbox/qcom-ipcc.c
@@ -82,7 +82,7 @@ static irqreturn_t qcom_ipcc_irq_fn(int irq, void *data)

virq = irq_find_mapping(ipcc->irq_domain, hwirq);
writel(hwirq, ipcc->base + IPCC_REG_RECV_SIGNAL_CLEAR);
- generic_handle_irq(virq);
+ generic_handle_irq_safe(virq);
}

return IRQ_HANDLED;
--
2.37.3