ethnl_fill_reply_header(9)

💅 ethnl_fill_reply_header(9) 💅

okay bestie, welcome to the Kernel API Manual page for ethnl_fill_reply_header ✨ this one is short, sweet, and very “put the common header into a reply message” coded 💌

🌸 NAME 🌸

ethnl_fill_reply_header — Put common header into a reply message 💌

✨ SYNOPSIS ✨

int ethnl_fill_reply_header (struct sk_buff *skb , struct net_device
       *dev , u16 attrtype );

🎀 ARGUMENTS 🎀

• skb — the skb with the message 📨
• dev — the network device to describe in the header 🖥️
• attrtype — the attribute type to use for the nest 🪺

💖 DESCRIPTION 💖

So what it does: it creates a nested attribute, and that nest is full of attributes describing the given network device 🌈. That’s the whole vibe — nested attribute, device description, iconic behavior, slay ✨

🔥 RETURN 🔥

• 0 on success 🎉
• error value on error — and heads up, it’s -EMSGSIZE only, no cap 😭

🦋 SEE ALSO 🦋

Kernel file ./net/ethtool/netlink.c has the friends:

• ethnl_parse_header_dev_get(9)
• ethnl_reply_init(9)
• struct ethnl_dump_ctx(9)
• struct ethnl_perphy_dump_ctx(9)
• ethnl_default_parse(9)
• ethnl_init_reply_data(9)

mwah 💋 — from ./net/ethtool, dated October 2026. bye bestie, go put that common header in a reply message! 🫶💖