ethnl_strz_size(9)

💅 ethnl_strz_size — a Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual, where we learn how to measure a string before we yeet it into a netlink attribute ✨ this one is ethnl_strz_size(9) and honestly? she's a little math girlie and we stan 🫶

---

✨ NAME ✨

ethnl_strz_size — calculate attribute length for fixed size string 💖 literally just doing the size math so you don't have to, no cap

---

🌸 SYNOPSIS 🌸

int ethnl_strz_size (const char *s );

---

🦋 ARGUMENTS 🦋

• s — an ETH_GSTRING_LEN sized string, and heads up bestie: it may not be null terminated 😭 so don't go assuming there's a cute little \0 waiting for you at the end, because there might not be 💀

---

👑 RETURN 👑

returns the total length of an attribute with a null terminated string from s ✨ that's the whole vibe — attribute length, null terminator included, periodt 💅

---

🔥 SEE ALSO 🔥

the whole friend group, iykyk:

• Kernel file ./net/ethtool/netlink.h — the source material, main character energy 👑
• ethnl_put_strz(9)
• ethnl_update_u32(9)
• ethnl_update_u8(9)
• ethnl_update_u8_u32(9)
• ethnl_update_bool32(9)
• ethnl_update_bool(9)
• ethnl_update_binary(9)
• ethnl_update_bitfield32(9)
• ethnl_reply_header_size(9)
• struct ethnl_req_info(9)
• ethnl_req_get_phydev(9)
• struct ethnl_reply_data(9)
• struct ethnl_request_ops(9)

---

ngl this one is short and sweet and that's her charm 💜 read the whole squad above if you wanna go deeper, fr fr 🌈

---

and that's the page, bestie 🍓 brought to you by ./net/ethtool, dated October 2026 — stream it, memorize it, slay it 💅✨🎀