parisc: Replace setup_irq() by request_irq()

request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.

Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.

Hence replace setup_irq() by request_irq().

[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos

Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 6 insertions, 16 deletions

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index e5fcfb70cc7c..e76c86619949 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -560,33 +560,23 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	goto out;
 }
 
-static struct irqaction timer_action = {
-	.handler = timer_interrupt,
-	.name = "timer",
-	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
-};
-
-#ifdef CONFIG_SMP
-static struct irqaction ipi_action = {
-	.handler = ipi_interrupt,
-	.name = "IPI",
-	.flags = IRQF_PERCPU,
-};
-#endif
-
 static void claim_cpu_irqs(void)
 {
+	unsigned long flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL;
 	int i;
+
 	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
 		irq_set_chip_and_handler(i, &cpu_interrupt_type,
 					 handle_percpu_irq);
 	}
 
 	irq_set_handler(TIMER_IRQ, handle_percpu_irq);
-	setup_irq(TIMER_IRQ, &timer_action);
+	if (request_irq(TIMER_IRQ, timer_interrupt, flags, "timer", NULL))
+		pr_err("Failed to register timer interrupt\n");
 #ifdef CONFIG_SMP
 	irq_set_handler(IPI_IRQ, handle_percpu_irq);
-	setup_irq(IPI_IRQ, &ipi_action);
+	if (request_irq(IPI_IRQ, ipi_interrupt, IRQF_PERCPU, "IPI", NULL))
+		pr_err("Failed to register IPI interrupt\n");
 #endif
 }