irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline()

With arch/mips/kernel/smp-bmips.c having been migrated away from
irq_cpu_offline() and use irq_migrate_all_off_this_cpu() instead, we no
longer need to implement an .irq_cpu_offline() callback. This is a
necessary change to facilitate the building of this driver as a module.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211020184859.2705451-3-f.fainelli@gmail.com

diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index a035c38..7501562 100644 (file)
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -221,33 +221,6 @@ static int bcm7038_l1_set_affinity(struct irq_data *d,
        return 0;
 }
 
-#ifdef CONFIG_SMP
-static void bcm7038_l1_cpu_offline(struct irq_data *d)
-{
-       struct cpumask *mask = irq_data_get_affinity_mask(d);
-       int cpu = smp_processor_id();
-       cpumask_t new_affinity;
-
-       /* This CPU was not on the affinity mask */
-       if (!cpumask_test_cpu(cpu, mask))
-               return;
-
-       if (cpumask_weight(mask) > 1) {
-               /*
-                * Multiple CPU affinity, remove this CPU from the affinity
-                * mask
-                */
-               cpumask_copy(&new_affinity, mask);
-               cpumask_clear_cpu(cpu, &new_affinity);
-       } else {
-               /* Only CPU, put on the lowest online CPU */
-               cpumask_clear(&new_affinity);
-               cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
-       }
-       irq_set_affinity_locked(d, &new_affinity, false);
-}
-#endif
-
 static int __init bcm7038_l1_init_one(struct device_node *dn,
                                      unsigned int idx,
                                      struct bcm7038_l1_chip *intc)
@@ -396,9 +369,6 @@ static struct irq_chip bcm7038_l1_irq_chip = {
        .irq_mask               = bcm7038_l1_mask,
        .irq_unmask             = bcm7038_l1_unmask,
        .irq_set_affinity       = bcm7038_l1_set_affinity,
-#ifdef CONFIG_SMP
-       .irq_cpu_offline        = bcm7038_l1_cpu_offline,
-#endif
 #ifdef CONFIG_PM_SLEEP
        .irq_set_wake           = bcm7038_l1_set_wake,
 #endif