scmi_reboot_notifier(9)

🎀 NAME 🎀

scmi_reboot_notifier — a reboot notifier to catch an ongoing successful system transition. This is the scmi_reboot_notifier(9) page from the Kernel API Manual, bestie. 👑

✨ SYNOPSIS ✨

int scmi_reboot_notifier (struct notifier_block *nb , unsigned long
reason , void *__unused );

🫶 ARGUMENTS 🫶

• nb — reference to the related notifier block. That's the notifier-block hookup.
• reason — the reason for the ongoing reboot. Very much the why of the reboot.
• __unused — the cmd being executed on a restart request, and it's unused here. Yes, the name is literally telling you it's unused.

💅 DESCRIPTION 💅

So when an ongoing system transition is detected, and it's compatible with the one requested by SCMI, this notifier cancels the delayed work. That's the whole move. ✨

🌈 RETURN 🌈

NOTIFY_OK in any case. Every. Single. Case. No cap. 💖

🔥 SEE ALSO 🔥

• Kernel file ./drivers/firmware/arm_scmi/scmi_power_control.c
• struct scmi_syspower_conf(9)
• scmi_request_forceful_transition(9)
• scmi_request_graceful_transition(9)
• scmi_userspace_notifier(9)

Signed with love by the scmi_reboot_notifier(9) page, from source/version ./drivers/firmware/arm_scmi, dated October 2026. 🫶💅🌸