ipi_send_mask(9)

💅 NAME 💅

okay so bestie, welcome to ipi_send_mask(9) — a page from the Kernel API Manual, and its whole main-character job is literally this: ipi_send_mask — Send an IPI to target CPU(s). That's it, that's the vibe, slay. ✨

🎀 SYNOPSIS 🎀

int ipi_send_mask (unsigned int virq , const struct cpumask *dest );

🌸 ARGUMENTS 🌸

• virq — Linux IRQ number from irq_reserve_ipi. like, that's the IRQ number from there, bestie.
• dest — dest CPU(s), must be a subset of the mask passed to irq_reserve_ipi. No cap, that subset rule is giving mandatory. 💅

🔥 RETURN 🔥

0 on success or negative error number on failure. So success is literally zero, and failure is a negative error number — periodt. 😌

🦋 SEE ALSO 🦋

Kernel file ./kernel/irq/ipi.c — plus these absolute icons: irq_reserve_ipi(9), irq_destroy_ipi(9), ipi_get_hwirq(9), __ipi_send_single(9), __ipi_send_mask(9), ipi_send_single(9). Go read them if you want the full lore, iykyk. 💜

xoxo, your kernel bestie 💖 — source/version: ./kernel/irq, date: October 2026. now go forth and send those IPIs, mwah 🫶