openwrtv4/target/linux/mvebu/patches-4.9/130-irqchip-armada-xp-backport.patch

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Backport a change that updates the effective affinity mask. The Armada IRQ
controller only supports setting the affinity to a single CPU, and the IRQ
subsystem needs to know about that.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -251,6 +251,8 @@ static int armada_xp_set_affinity(struct
writel(reg, main_int_base + ARMADA_370_XP_INT_SOURCE_CTL(hwirq));
raw_spin_unlock(&irq_controller_lock);
+ cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(cpu));
+
return IRQ_SET_MASK_OK;
}
#endif