stm_source_link_drop(9)

💅 stm_source_link_drop(9) 💅

okay bestie, welcome to the Kernel API Manual entry for stm_source_link_drop(9) — the little function that says “bye-bye link” to your stm_source. it's giving cleanup era, no cap. ✨

💖 NAME 💖

• stm_source_link_drop — detach stm_source from its stm device. literally the unlink button, periodt.

✨ SYNOPSIS ✨

void stm_source_link_drop (struct stm_source_device *src );

🫶 ARGUMENTS 🫶

• src — the stm_source device. this is the source bestie that's getting detached, okayyy.

🌸 DESCRIPTION 🌸

Unlinking means disconnecting from source's STM device. after this, writes will be unsuccessful until it is linked to a new STM device. so yeah, no writes until you find a new STM device to link up with — the vibe check is strict. 💀

This will happen on "stm_source_link" sysfs attribute write to undo the existing link (if any), or on the linked STM device's de-registration. so it's either you writing to that sysfs attribute to undo the link, or the linked STM device getting de-registered — both paths lead here. 🦋

🔥 SEE ALSO 🔥

• Kernel file ./drivers/hwtracing/stm/core.c
• stm_find_device(9)
• stm_put_device(9)
• stm_data_write(9)
• stm_source_link_add(9)
• __stm_source_link_drop(9)
• stm_source_register_device(9)
• stm_source_unregister_device(9)

that's the whole page, bestie 🫶 source/version: ./drivers/hwtracing/stm · date: October 2026 · page: stm_source_link_drop(9) — mwah 💋