Re: [PATCH v2] irqdomain: Delete irq_domain_add_linear()

[Dongliang Mu <dzm91@hust.edu.cn>]

On 9/1/26 3:04 PM, Jiri Slaby (SUSE) wrote:
> 7.3-rc1 is free of calls to irq_domain_add_linear(), so it can be
> deleted at last.
>
> According to Dongliang Mu, the paragraph in the Chinese docs is now
> obsolete. So drop it completely.
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
> 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>

Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>

>
> ---
> [v2] drop the whole paragraph (Dongliang Mu)
> ---
>   .../zh_CN/core-api/irq/irq-domain.rst          |  4 ----
>   include/linux/irqdomain.h                      | 18 ------------------
>   2 files changed, 22 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..7317cf5355c9 100644
> --- a/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
> +++ b/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
> @@ -90,10 +90,6 @@ 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' 。
> -
>   大多数驱动应该使用线性映射
>   
>   树状映射
> 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,