# \[PATCH 9/9\] irqdomain: Kill irq\_domain\_add\_legacy\_isa

- From: Marc Zyngier \<maz@kernel.org\>
- Date: 2021-04-06 09:37:33 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/04/6327900
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/04/6327891/t.md

```text
This helper doesn't have a user anymore, let's remove it.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 Documentation/core-api/irq/irq-domain.rst |  1 -
 include/linux/irqdomain.h                 | 11 -----------
 2 files changed, 12 deletions(-)

diff --git a/Documentation/core-api/irq/irq-domain.rst b/Documentation/core-api/irq/irq-domain.rst
index a77c24c27f7b..84e561db468f 100644
--- a/Documentation/core-api/irq/irq-domain.rst
+++ b/Documentation/core-api/irq/irq-domain.rst
@@ -146,7 +146,6 @@ Legacy
 
 	irq_domain_add_simple()
 	irq_domain_add_legacy()
-	irq_domain_add_legacy_isa()
 	irq_domain_create_legacy()
 
 The Legacy mapping is a special case for drivers that already have a
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 3997ed9e4d7d..2a7ecf08d56e 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -45,9 +45,6 @@ struct cpumask;
 struct seq_file;
 struct irq_affinity_desc;
 
-/* Number of irqs reserved for a legacy isa controller */
-#define NUM_ISA_INTERRUPTS	16
-
 #define IRQ_DOMAIN_IRQ_SPEC_PARAMS 16
 
 /**
@@ -346,14 +343,6 @@ static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_nod
 {
 	return __irq_domain_add(of_node_to_fwnode(of_node), 0, max_irq, max_irq, ops, host_data);
 }
-static inline struct irq_domain *irq_domain_add_legacy_isa(
-				struct device_node *of_node,
-				const struct irq_domain_ops *ops,
-				void *host_data)
-{
-	return irq_domain_add_legacy(of_node, NUM_ISA_INTERRUPTS, 0, 0, ops,
-				     host_data);
-}
 static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
 					 const struct irq_domain_ops *ops,
 					 void *host_data)
-- 
2.29.2

```