[PATCH v2] irqdomain: Delete irq_domain_add_linear()

[PATCH v2] irqdomain: Delete irq_domain_add_linear()

[Jiri Slaby (SUSE)]

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>

---
[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,
-- 
2.55.0

[PATCH] irqdomain: Delete irq_domain_add_linear()

[Jiri Slaby (SUSE)]

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>

---
[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,
-- 
2.55.0

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

[Dongliang Mu]

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,

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

[Yanteng Si]

在 2026/9/1 15:32, Dongliang Mu 写道:
>
> 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>

Reviewed-by: Yanteng Si <si.yanteng@linux.dev>


Thanks,

Yanteng

>
>>
>> ---
>> [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,
>

Re: [PATCH] irqdomain: Delete irq_domain_add_linear()

[Thomas Gleixner]

On Tue, Sep 01 2026 at 09:04, Jiri Slaby wrote:

Can you get your act together?

The very same patch just with "[patch V2]" was sent by you _one_ second
before this one.

Re: [PATCH] irqdomain: Delete irq_domain_add_linear()

[Jiri Slaby]

On 04. 09. 26, 8:37, Thomas Gleixner wrote:
> On Tue, Sep 01 2026 at 09:04, Jiri Slaby wrote:
> 
> Can you get your act together?
> 
> The very same patch just with "[patch V2]" was sent by you _one_ second
> before this one.

tl;dr You can ignore '[PATCH]' and look at '[PATCH v2]' only. Do you 
want me to send v3 properly?

I omitted `-1` to `git send-email` when sending 
`./v2-0001-irqdomain-Delete-irq_domain_add_linear.patch`. So it sent 
both '[PATCH]' and '[PATCH v2]'. With the same content.

thanks,
-- 
js
suse labs

[tip: irq/urgent] irqdomain: Delete irq_domain_add_linear()

[tip-bot2 for Jiri Slaby (SUSE)]

The following commit has been merged into the irq/urgent branch of tip:

Commit-ID:     797b13a7de957792c1b4773aa2cc3dab4621fd9c
Gitweb:        https://git.kernel.org/tip/797b13a7de957792c1b4773aa2cc3dab4621fd9c
Author:        Jiri Slaby (SUSE) <jirislaby@kernel.org>
AuthorDate:    Tue, 01 Sep 2026 09:04:48 +02:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Fri, 04 Sep 2026 08:40:07 +02:00

irqdomain: Delete irq_domain_add_linear()

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

According to Dongliang Mu, the related paragraph in the Chinese docs is now
obsolete. So drop it completely.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Yanteng Si <si.yanteng@linux.dev>
Link: https://patch.msgid.link/20260901070450.255507-1-jirislaby@kernel.org
---
 Documentation/translations/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 aaefeda..7317cf5 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 73c25d4..3ba75a4 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,