irq_matrix_reserved(9)

💅 irq_matrix_reserved(9) — like, the Kernel API Manual but make it cute

okay so bestie, welcome to the <pink>Kernel API Manual</pink> page for irq_matrix_reserved — yes that's the real section-9 name, no I'm not kidding, and yes I'm gonna make it make sense for you 🫶

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✨ NAME ✨

irq_matrix_reserved — get the number of globally reserved irqs 👑

like, that's the whole job. it tells you how many irqs got reserved globally. that's it. that's the function. iconic honestly.

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🌸 SYNOPSIS 🌸

unsigned int irq_matrix_reserved (struct irq_matrix *m );

bestie look at it. unsigned int going in, struct irq_matrix *m going out… ok wait that's backwards, m goes in, the unsigned int comes out. anyway it's giving very simple, very demure, one job and one job only 💅

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🎀 ARGUMENTS 🎀

• m — pointer to the matrix you wanna query. literally just point it at the matrix and it'll spill the count. that's the vibe check 🔍✨

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🦋 SEE ALSO 🦋

so like, this function does not exist in a vacuum, she has a whole friend group, and they're all in the kernel file ./kernel/irq/matrix.c — go say hi to all of them, fr fr:

• irq_alloc_matrix(9)
• irq_matrix_online(9)
• irq_matrix_offline(9)
• irq_matrix_assign_system(9)
• irq_matrix_reserve_managed(9)
• irq_matrix_remove_managed(9)
• irq_matrix_alloc_managed(9)
• irq_matrix_assign(9)
• irq_matrix_reserve(9)
• irq_matrix_remove_reserved(9)
• irq_matrix_alloc(9)
• irq_matrix_free(9)
• irq_matrix_available(9)
• irq_matrix_allocated(9)
• irq_matrix_debug_show(9)

that's a lot of matrix girlies and honestly? they ate. go read them too, iykyk 💜

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ngl the whole irq_matrix_* family lives in ./kernel/irq/matrix.c — that's the source directory + file, not a vibe. 📁

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and that's the page bestie!! 🌈 source: ./kernel/irq — dated October 2026 — mwah, periodt, see you in the next man page 💖🧚⭐