ftrace_func_...er_remove_ip(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ftrace_func_mapper_remove_ip — ftrace_func_mapper_remove_ip(9)

okay so bestie, welcome to the Kernel API Manual ✨ this one is a kernel function page, and it's literally just about yanking one little ip out of a mapper. that's it. that's the whole vibe. no cap. 🎀

🌸 NAME 🌸

ftrace_func_mapper_remove_ip — Remove an ip from the mapping 💅

✨ SYNOPSIS ✨

void * ftrace_func_mapper_remove_ip (struct ftrace_func_mapper *mapper ,
unsigned long ip );

yeah it returns a void *, she's mysterious like that 🦋

🫶 ARGUMENTS 🫶

  • mapper — the mapper that has the ip maps. it's the main character here, the one holding all the data 👑
  • ip — the instruction pointer address you want to remove the data from. so like, which ip's data are we deleting, bestie? that one. ✂️

💀 RETURN 💀

it gives you back the data if it's found — otherwise NULL. 😭

⚠️ ok so listen, this is the important bit: if the data pointer is used as the data itself, (see ftrace_func_mapper_find_ip, then the return value may be meaningless, if the data pointer was set to zero. so like, don't come for her if the return value is giving nothing — it might literally be meaningless in that case 🙈

🔥 SEE ALSO 🔥

Kernel file ./kernel/trace/ftrace.c — and then the whole friend group, all (9) man pages, in this exact order, no skipping, we don't do that here 💖

and that's the whole page, bestie!! 🧚 from ./kernel/trace, dated October 2026, version whatever comes with it — mwah, go remove some ips, slay 💜💅

📦 where this page comes from