irq_matrix_free(9)

💅 irq_matrix_free(9) — like, the Kernel API Manual era ✨

okay bestie, welcome to irq_matrix_free(9) 🎀 — this is a page straight outta the Kernel API Manual and it's lowkey one of those tiny helpers that keeps the whole interrupt matrix from spiraling. we're freeing an allocated interrupt in the matrix, and honestly? she's iconic for it. no cap. 🦋

✨ NAME ✨

irq_matrix_free — frees an allocated interrupt in the matrix. that's it, that's the whole vibe. 💖

🌸 SYNOPSIS 🌸

void irq_matrix_free (struct irq_matrix *m , unsigned int cpu , unsigned int bit , bool managed );

like look at her. returns void. takes four things. main character energy fr fr. 👑

🫶 ARGUMENTS 🫶

• m — the matrix pointer 💫 your actual matrix, your whole situation.
• cpu — which CPU map needs to be updated. yeah, you gotta say which CPU, she's not a mind reader. 🙈
• bit — the bit to remove. literally just. remove it. bye. 💀
• managed — if true, the interrupt is managed and not accounted as available. important distinction, don't sleep on it. ⚠️

🔥 SEE ALSO 🔥

• kernel file ./kernel/irq/matrix.c — the source, go read her 🧚
• 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_available(9)
• irq_matrix_reserved(9)
• irq_matrix_allocated(9)
• irq_matrix_debug_show(9)

the whole friend group, honestly. they all ate. 🌈

and that's the page, bestie 💜 this gem lives in ./kernel/irq and the version fairy stamped it October 2026 — mwah, go free some interrupts responsibly, ily, bye! 🍓✨💅