So far, domain names that implement a percpu_devid partition
inherit the main domain name, which leads to conflicts in debugfs
and results in the absence of important data.
Let's provide a callback that will repaint the default name, and
keep all the data available.
Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
---
drivers/irqchip/irq-partition-percpu.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/irqchip/irq-partition-percpu.c
b/drivers/irqchip/irq-partition-percpu.c
index ccd72c2cbc23..229f96ab3e26 100644
--- a/drivers/irqchip/irq-partition-percpu.c
+++ b/drivers/irqchip/irq-partition-percpu.c
@@ -205,6 +205,15 @@ int partition_translate_id(struct partition_desc *desc,
void *partition_id)
return i;
}
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+static atomic_t part_id;
+static char *partition_override_name(struct irq_domain *domain)
+{
+ return kasprintf(GFP_KERNEL, "%s-part-%d",
+ domain->name, atomic_fetch_inc(&part_id));
+}
+#endif
+
struct partition_desc *partition_create_desc(struct fwnode_handle *fwnode,
struct partition_affinity *parts,
int nr_parts,
@@ -223,6 +232,9 @@ struct partition_desc *partition_create_desc(struct
fwnode_handle *fwnode,
desc->ops = *ops;
desc->ops.free = partition_domain_free;
desc->ops.alloc = partition_domain_alloc;
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+ desc->ops.override_name = partition_override_name;
+#endif
d = irq_domain_create_linear(fwnode, nr_parts, &desc->ops, desc);
if (!d)
--
2.14.2
