dynevent_arg_pair_add(9)

💅 dynevent_arg_pair_add(9) 💅

okay so bestie, welcome to the Kernel API Manual page for dynevent_arg_pair_add(9) — yes that's the whole name, it's a lot, we love her anyway 🎀

---

✨ NAME ✨

dynevent_arg_pair_add — adds an arg pair to a dynevent_cmd 💖

---

🌸 SYNOPSIS 🌸

int dynevent_arg_pair_add (struct dynevent_cmd *cmd , struct
       dynevent_arg_pair *arg_pair , dynevent_check_arg_fn_t check_arg );

---

🦋 ARGUMENTS 🦋

• cmd — a pointer to the dynevent_cmd struct, aka the one representing the new event cmd 👑
• arg_pair — the argument pair you wanna append to the current cmd, slay
• check_arg — an (optional) pointer to a function that checks arg sanity. like a vibe check but for your arguments, no cap 🫶

---

💜 DESCRIPTION 💜

So what she does is: she appends an argument pair to a dynevent_cmd. And aww what's an argument pair? It's literally a left-hand-side argument and a right-hand-side argument, separated by an operator (which can be whitespace), and then all of that followed by a separator, if applicable ✨

Think of it like adding arguments of the form 'type variable_name;' or 'x+y' — iconic formats, both of them 🔥

Here's the exact order of operations, because the way that order matters:

1. the lhs argument string gets appended to the current cmd string
2. then an operator, if applicable
3. then the rhs string
4. and finally a separator, if applicable 💅

And before the argument is added? The check_arg function — if present — gets used to check the sanity of the current arg strings. she's thorough, we respect it 🌸

🌈 little heads up bestie: the cmd strings, operator, and separator should be set using the dynevent_arg_pair_init before any arguments are added using this function. like, please init first, don't come for me 😭

---

⭐ RETURN ⭐

0 if successful, error otherwise. that's it, that's the rule 🎀

---

💀 SEE ALSO 💀

Kernel file ./kernel/trace/trace_dynevent.c plus these absolute legends:

• dynevent_arg_add(9)
• dynevent_str_add(9)
• dynevent_cmd_init(9)
• dynevent_arg_init(9)
• dynevent_arg_pair_init(9)
• dynevent_create(9)

---

and that's the page, bestie 🫶 it's from the ./kernel/trace directory, dated October 2026, under the dynevent_arg_pair_add(9) era of the Kernel API Manual 🌟 go forth and add those arg pairs, ily, periodt 💖