1 files changed, 14 insertions, 2 deletions

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 8b0be4bd6565..3bf9793d8825 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -458,6 +458,20 @@ void irq_set_default_host(struct irq_domain *domain)
 }
 EXPORT_SYMBOL_GPL(irq_set_default_host);
 
+/**
+ * irq_get_default_host() - Retrieve the "default" irq domain
+ *
+ * Returns: the default domain, if any.
+ *
+ * Modern code should never use this. This should only be used on
+ * systems that cannot implement a firmware->fwnode mapping (which
+ * both DT and ACPI provide).
+ */
+struct irq_domain *irq_get_default_host(void)
+{
+        return irq_default_domain;
+}
+
 static void irq_domain_clear_mapping(struct irq_domain *domain,
                                      irq_hw_number_t hwirq)
 {
@@ -1749,8 +1763,6 @@ void __init irq_domain_debugfs_init(struct dentry *root)
         struct irq_domain *d;
 
         domain_dir = debugfs_create_dir("domains", root);
-        if (!domain_dir)
-                return;
 
         debugfs_create_file("default", 0444, domain_dir, NULL,
                             &irq_domain_debug_fops);