__ip_dev_find(9)

__ip_dev_find(9)

okay so this is the __ip_dev_find(9) page from the Kernel API Manual, bestie 💖 it’s short, it’s iconic, and it’s lowkey a vibe check for your kernel code.

🌸 NAME 🌸

__ip_dev_find — find the first device with a given source address. periodt 💅

✨ SYNOPSIS ✨

       struct net_device * __ip_dev_find (struct net *net , __be32 addr , bool
       devref );

🎀 ARGUMENTS 🎀

• net — the net namespace, the whole group-chat context basically.
• addr — the source address you’re looking for, bestie.
• devref — if true, take a reference on the found device. that’s the whole flag vibe.

💅 DESCRIPTION 💅

if a caller uses devref=false, it should be protected by RCU, or RTNL. that’s the caveat, no cap — don’t skip it 🫶

🔥 SEE ALSO 🔥

• Kernel file ./net/ipv4/devinet.c

okay that’s the whole page, bestie 🫶 source/version: ./net/ipv4; date: October 2026; page: __ip_dev_find(9) — mwah 💋