irq_chip_shutdown_parent(9)

💅 irq_chip_shutdown_parent(9) 🎀

okay so bestie, welcome to the irq_chip_shutdown_parent page from the Kernel API Manual — yes the Kernel API Manual, we're literally in kernel land now, put your hair up 💖

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✨ NAME ✨

irq_chip_shutdown_parent — Shutdown the parent interrupt 🫶

Like the name says, it's the "shut the parent down" girlie. No cap.

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🌸 SYNOPSIS 🌸

void irq_chip_shutdown_parent (struct irq_data *data );

That's it. One function, one argument, zero drama. Returns void — she gives nothing back and she's iconic for it 💅

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🦋 ARGUMENTS 🦋

• data — Pointer to interrupt specific data. yep. that's the whole description. she's a pointer, she points at interrupt specific data, we love a minimal queen ✨

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🎀 DESCRIPTION 🎀

okay so here's the tea ☕:

irq_chip_shutdown_parent invokes the irq_shutdown callback of the parent — if available. And if that parent callback is, like, not available? Not a vibe? She does NOT panic, she just falls back to irq_chip_disable_parent instead. lowkey adaptive, highkey resourceful 👑

so: parent irq_shutdown callback first, irq_chip_disable_parent as the backup plan. periodt. 💖

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🌈 SEE ALSO 🌈

bestie the reference list is long — grab a snack 🍓, this is the whole friend group:

Kernel file ./kernel/irq/chip.c — that's where she lives 🏠

• irq_set_chip(9)
• irq_set_irq_type(9)
• irq_set_handler_data(9)
• irq_set_msi_desc_off(9)
• irq_set_msi_desc(9)
• irq_set_chip_data(9)
• irq_disable(9)
• handle_nested_irq(9)
• handle_simple_irq(9)
• handle_untracked_irq(9)
• handle_level_irq(9)
• handle_fasteoi_irq(9)
• handle_fasteoi_nmi(9)
• handle_edge_irq(9)
• handle_percpu_irq(9)
• handle_percpu_devid_irq(9)
• irq_cpu_online(9)
• irq_cpu_offline(9)
• handle_fasteoi_ack_irq(9)
• handle_fasteoi_mask_irq(9)
• irq_chip_set_parent_state(9)
• irq_chip_get_parent_state(9)
• irq_chip_startup_parent(9)
• irq_chip_enable_parent(9)
• irq_chip_disable_parent(9)
• irq_chip_ack_parent(9)
• irq_chip_mask_parent(9)
• irq_chip_mask_ack_parent(9)
• irq_chip_unmask_parent(9)
• irq_chip_eoi_parent(9)
• irq_chip_set_affinity_parent(9)
• irq_chip_set_type_parent(9)
• irq_chip_retrigger_hierarchy(9)
• irq_chip_set_vcpu_affinity_parent(9)
• irq_chip_set_wake_parent(9)
• irq_chip_request_resources_parent(9)
• irq_chip_release_resources_parent(9)
• irq_chip_compose_msi_msg(9)
• irq_chip_pm_get(9)
• irq_chip_pm_put(9)

like… the whole irq_chip_*_parent family reunion fr fr 😭🫶 go read them, iykyk 💜

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ngl this one is short and sweet — but that parent callback fallback is the whole plot, don't skip it 💀✨

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and that's the page! sourced from ./kernel/irq, dated October 2026, and she's slaying in the Kernel API Manual the whole time 🧚‍♀️ bye bestie, go shut down some parents (the interrupt ones!!) 🌸👑💖