xdr_stream_decode_u32(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xdr_stream_decode_u32 — the kernel API manual, bestie edition

Okay so real talk: this page is all about xdr_stream_decode_u32(9), a lil kernel function that pulls a 32-bit integer out of an XDR stream. That's it. That's the whole vibe. Slay. 🎀

✨ SYNOPSIS ✨

ssize_t xdr_stream_decode_u32 (struct xdr_stream *xdr , __u32 *ptr );

That's the whole signature, no cap — it hands you back an ssize_t, takes a pointer to your xdr_stream, and a spot to drop the number. 🫶

🌸 ARGUMENTS 🌸

  • xdr — pointer to the xdr_stream. This is the stream bestie, the main character, the thing you're reading from.
  • ptr — location to store the integer. Yes queen, this is where the decoded 32-bit number goes. 🍓

⭐ RETURN ⭐

  • 0 on success. Iconic, flawless, no notes. 👑
  • -EBADMSG on XDR buffer overflow. Yeah that's the vibe check failing — your buffer ran out, and the kernel is telling you about it very directly. 😭

🔥 SEE ALSO 🔥

Everything lives in the kernel file ./include/linux/sunrpc/xdr.h — that's the mothership. And here is the entire friend group, alphabetically-ish and in order, no skips, no cap, fr fr:

Like… go read those too, they're literally all cousins of this function. Go off. 🌈

💖 and that's the page, bestie 💖

Shoutout to the source <pink>./include/linux/sunrpc</pink> and the date stamp <purple>October 2026</purple> — that's the era this page is serving, and honestly? Ate. 🦋✨

📦 where this page comes from