Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'irq-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
- Fix error code in the irqchip/mchp-eic driver
- Fix setup_percpu_irq() affinity assumptions
- Remove the unused irq_domain_add_tree() function
* tag 'irq-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()
irqdomain: Delete irq_domain_add_tree()
genirq: Allow NULL affinity for setup_percpu_irq()
+4
-21
-4
Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
-4
Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
···
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如果hwirq号可以非常大，树状映射是一个很好的选择，因为它不需要分配一个和最大hwirq
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号一样大的表。 缺点是，hwirq到IRQ号的查找取决于表中有多少条目。
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-
irq_domain_add_tree()和irq_domain_create_tree()在功能上是等价的，除了第一
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-
个参数不同——前者接受一个Open Firmware特定的 'struct device_node' ，而后者接受
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-
一个更通用的抽象 'struct fwnode_handle' 。
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-
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很少有驱动应该需要这个映射。
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无映射
+1
-1
drivers/irqchip/irq-mchp-eic.c
+1
-1
drivers/irqchip/irq-mchp-eic.c
-16
include/linux/irqdomain.h
-16
include/linux/irqdomain.h
···
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}
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#endif
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733
-
static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node,
734
-
const struct irq_domain_ops *ops,
735
-
void *host_data)
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-
{
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struct irq_domain_info info = {
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-
.fwnode = of_fwnode_handle(of_node),
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-
.hwirq_max = ~0U,
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-
.ops = ops,
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-
.host_data = host_data,
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-
};
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struct irq_domain *d;
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-
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-
d = irq_domain_instantiate(&info);
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return IS_ERR(d) ? NULL : d;
747
-
}
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-
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static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
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734
unsigned int size,
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const struct irq_domain_ops *ops,