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-rw-r--r--target/linux/mvebu/patches-4.9/130-irqchip-armada-xp-backport.patch17
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.9/130-irqchip-armada-xp-backport.patch b/target/linux/mvebu/patches-4.9/130-irqchip-armada-xp-backport.patch
new file mode 100644
index 0000000..14cbb7b
--- /dev/null
+++ b/target/linux/mvebu/patches-4.9/130-irqchip-armada-xp-backport.patch
@@ -0,0 +1,17 @@
+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