irqdomain: Stop using 'host' for domain

It is confusing to see 'host' and 'domain' to be used as 'domain'. Given
this header is all about domains, switch the remaining 'host' uses to
'domain'.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250319092951.37667-5-jirislaby@kernel.org

Author: Jiri Slaby (SUSE)

include/linux/irqdomain.h

@@ -72,7 +72,7 @@ void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
 
 /**
  * struct irq_domain_ops - Methods for irq_domain objects
- * @match: Match an interrupt controller device node to a host, returns
+ * @match: Match an interrupt controller device node to a domain, returns
  *         1 on a match
  * @select: Match an interrupt controller fw specification. It is more generic
  *	    than @match as it receives a complete struct irq_fwspec. Therefore,
@@ -454,7 +454,7 @@ static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_nod
 	return IS_ERR(d) ? NULL : d;
 }
 
-unsigned int irq_create_direct_mapping(struct irq_domain *host);
+unsigned int irq_create_direct_mapping(struct irq_domain *domain);
 #endif
 
 static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
@@ -507,24 +507,24 @@ static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fw
 	return IS_ERR(d) ? NULL : d;
 }
 
-void irq_domain_remove(struct irq_domain *host);
+void irq_domain_remove(struct irq_domain *domain);
 
 int irq_domain_associate(struct irq_domain *domain, unsigned int irq,
 			 irq_hw_number_t hwirq);
 void irq_domain_associate_many(struct irq_domain *domain,
 			       unsigned int irq_base,
 			       irq_hw_number_t hwirq_base, int count);
 
-unsigned int irq_create_mapping_affinity(struct irq_domain *host,
+unsigned int irq_create_mapping_affinity(struct irq_domain *domain,
 					 irq_hw_number_t hwirq,
 					 const struct irq_affinity_desc *affinity);
 unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec);
 void irq_dispose_mapping(unsigned int virq);
 
-static inline unsigned int irq_create_mapping(struct irq_domain *host,
+static inline unsigned int irq_create_mapping(struct irq_domain *domain,
 					      irq_hw_number_t hwirq)
 {
-	return irq_create_mapping_affinity(host, hwirq, NULL);
+	return irq_create_mapping_affinity(domain, hwirq, NULL);
 }
 
 struct irq_desc *__irq_resolve_mapping(struct irq_domain *domain,