skb_needs_linearize(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME

skb_needs_linearize — bestie, this one is literally just a vibe check: it asks "do we need to linearize this skb based on the device features we've got?" ✨

🌸 SYNOPSIS

bool skb_needs_linearize (struct sk_buff *skb , netdev_features_t features );

🎀 ARGUMENTS

  • skb — the socket buffer we're checking on 🫶 (this is the main character of the whole operation)
  • features — the net device features, aka the flex list of what your hardware can actually do 💅

🔥 DESCRIPTION

So here's the tea: it returns true if either of these two things is going on 👑

  1. the skb has a frag_list and the device doesn't support FRAGLIST, or
  2. the skb is fragmented and the device does not support SG.

That's it, that's the whole function. No cap — true means "yeah babe you gotta linearize", and anything else means you're chilling. 😭✨

🦋 SEE ALSO

Oh honey, the friend group is huge, buckle up 🍓 — all of these live in the kernel file ./include/linux/skbuff.h:

ok that's the whole page bestie, go forth and linearize responsibly 🧚‍♀️💜

And for the receipts, this one came from ./include/linux, dated October 2026, and it's the skb_needs_linearize(9) page — mwah, stan forever 💖🎀

📦 where this page comes from