irq_set_affinity_and_hint(9)

🌸 NAME 🌸

okay so bestie, this is the irq_set_affinity_and_hint(9) page from the Kernel API Manual 💅 and it's literally about updating the affinity hint and applying the provided cpumask to the interrupt. iconic behavior, no cap ✨

irq_set_affinity_and_hint — update the affinity hint and apply the provided cpumask to the interrupt 🫶

✨ SYNOPSIS ✨

int irq_set_affinity_and_hint (unsigned int irq , const struct cpumask
       *m );

💅 ARGUMENTS 💅

• irq — the interrupt you're updating, bestie 🎀
• m — cpumask pointer; NULL clears the hint 🙈

🦋 DESCRIPTION 🦋

So here's the vibe: it updates the affinity hint, and if m is not NULL, it applies m as the affinity of that interrupt. periodt 💖

🎀 SEE ALSO 🎀

• Kernel file ./include/linux/interrupt.h
• struct irqaction(9)
• request_irq(9)
• struct irq_affinity_notify(9)
• struct irq_affinity(9)
• struct irq_affinity_desc(9)
• irq_update_affinity_hint(9)

muah 💋 this lil page comes from the ./include/linux source, dated October 2026, and it's all about irq_set_affinity_and_hint(9) — bye bestie 🫶