ipa_mem_zero_modem(9)

💖 ipa_mem_zero_modem — Kernel API Manual 💖

okay so bestie, this is the ipa_mem_zero_modem(9) page from the Kernel API Manual, and it's giving “tiny function, very specific job” energy. let's get into it 💅

🌸 NAME 🌸

ipa_mem_zero_modem — zero IPA-local memory regions owned by the modem. literally that's the whole vibe, no cap.

✨ SYNOPSIS ✨

int ipa_mem_zero_modem (struct ipa *ipa );

🎀 ARGUMENTS 🎀

• ipa — IPA pointer. that's it, that's the argument, and yes it's the IPA pointer 🫶

🦋 DESCRIPTION 🦋

okay so what's happening here: this zeroes regions of IPA-local memory used by the modem. iconic little cleanup behavior, tbh.

These are configured (and initially zeroed) by ipa_mem_setup, but if the modem crashes and restarts via SSR we need to re-initialize them. so yeah, that's the “why” — not just random zeroing for funsies 😭

A QMI message tells the modem where to find regions of IPA local memory it needs to know about (these included). so the modem gets the map, and these regions are part of the whole situation. iykyk.

no extra lore here, bestie — these are exactly the facts from the page, just with better lighting ✨

💜 SEE ALSO 💜

• Kernel file ./drivers/net/ipa/ipa_mem.c — plus these related pages: ipa_mem_setup(9), ipa_mem_config(9), ipa_imem_init(9), ipa_smem_init(9) 🦋

mwah 💋 this page came from ./drivers/net/ipa, dated October 2026, and it's ipa_mem_zero_modem(9) — periodt. 🫶🎀