[PATCH] irqdomain: Delete irq_domain_add_linear()

["Jiri Slaby (SUSE)" <jirislaby@kernel.org>]

7.3-rc1 is free of calls to irq_domain_add_linear(), so it can be
deleted at last.

I used Gemini to update zh_CN/core-api/irq/irq-domain.rst too. Hopefully
the result is correct -- I really cannot read/write Chinese ("CHINESE
DOCUMENTATION" maintainers CCed).

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Assisted-by: LLM (Gemini) # zh_CN
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Radu Rendec <radu@rendec.net>
Cc: Alex Shi <alexs@kernel.org>
Cc: Yanteng Si <si.yanteng@linux.dev>
Cc: Dongliang Mu <dzm91@hust.edu.cn>
---
 .../zh_CN/core-api/irq/irq-domain.rst          |  4 +---
 include/linux/irqdomain.h                      | 18 ------------------
 2 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst b/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
index aaefeda0e164..5ce16d2e6a0e 100644
--- a/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
+++ b/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
@@ -90,9 +90,7 @@ irq_domain映射的类型
 映射的优点是固定时间查找IRQ号，而且irq_descs只分配给在用的IRQ。 缺点是该表
 必须尽可能大的hwirq号。
 
-irq_domain_add_linear()和irq_domain_create_linear()在功能上是等价的，
-除了第一个参数不同--前者接受一个Open Firmware特定的 'struct device_node' 而
-后者接受一个更通用的抽象 'struct fwnode_handle' 。
+irq_domain_create_linear() 接受一个通用的抽象 struct fwnode_handle 作为第一个参数。
 
 大多数驱动应该使用线性映射
 
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 73c25d40846c..3ba75a4ed3da 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -752,24 +752,6 @@ static inline void msi_device_domain_free_wired(struct irq_domain *domain, unsig
 }
 #endif
 
-static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
-						       unsigned int size,
-						       const struct irq_domain_ops *ops,
-						       void *host_data)
-{
-	struct irq_domain_info info = {
-		.fwnode		= of_fwnode_handle(of_node),
-		.size		= size,
-		.hwirq_max	= size,
-		.ops		= ops,
-		.host_data	= host_data,
-	};
-	struct irq_domain *d;
-
-	d = irq_domain_instantiate(&info);
-	return IS_ERR(d) ? NULL : d;
-}
-
 #else /* CONFIG_IRQ_DOMAIN */
 static inline void irq_dispose_mapping(unsigned int virq) { }
 static inline struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
-- 
2.55.0