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irqdomain: Delete irq_domain_add_linear()

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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
This commit is contained in:
Jiri Slaby (SUSE) 2026-09-01 09:04:48 +02:00 committed by Thomas Gleixner
parent cee9395acd
commit 797b13a7de
2 changed files with 0 additions and 22 deletions
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4
Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
View File

@ -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

18
include/linux/irqdomain.h
View File

@ -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,