scatterwalk_next(9)

✨ scatterwalk_next(9) ✨

okay so this is the scatterwalk_next(9) page from the Kernel API Manual — and yes, it's giving "tiny function, very important follow-up." 🫶

💖 NAME 💖

scatterwalk_next - Get the next data buffer in a scatterlist walk 🌈

🎀 SYNOPSIS 🎀

unsigned int scatterwalk_next (struct scatter_walk *walk , unsigned int total );

👀 ARGUMENTS 👀

• walk — the scatter_walk ✨
• total — the total number of bytes remaining, and bestie it has to be > 0 💅

🦋 DESCRIPTION 🦋

A virtual address for the next segment of data from the scatterlist will be placed into walk->addr. That's the main character move here. 👑

The caller must call scatterwalk_done_src or scatterwalk_done_dst when it is done using this virtual address. Not optional, no cap. 🚨

bestie, don't forget the done call — this is the "you break it, you fix it" part of the walk. 💀

🔥 RETURN 🔥

the next number of bytes available, <= total ⭐

🌸 SEE ALSO 🌸

• Kernel file ./include/crypto/scatterwalk.h — plus go say hi to scatterwalk_done_src(9) and scatterwalk_done_dst(9) 💜

and that's the whole vibe 🧚 — this page lives under ./include/crypto, dated October 2026, and it's literally scatterwalk_next(9). mwah 💋