November 2025 - kernelnewbies@kernelnewbies.org

Query: Y2038 patch series for 3.18 Kernel
by Pintu Kumar Agarwal Dec. 17, 2025

Dec. 17, 2025

Hi, We have an arm32 based embedded product which is based on the 3.18 kernel and a simple busybox. We wanted to support the Y2038 issue on this older kernel. Is this feasible Do we have the Y2038 separate patches available for both kernel and userspace ? Or upgrading the kernel is the only option ? Thanks, Pintu

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Hello form a new Kernel contributor
by Pavan Kumar Yalagada Nov. 20, 2025

Nov. 20, 2025

Hi everyone, My name is Pavan Kumar Yalagada. I am starting to learn Linux Kernel development and plan to submit my first small patch soon. Currently, I am reading "Linux Kernel Development" by Robert Love to better understand kernel internals. I would appreciate any guidance or advice for a beginner like me. Thanks, Pavan

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Rust: how to implement file_operations for a misc device?
by Fabio Nov. 20, 2025

Nov. 20, 2025

Hello, brand-new kernel newbie here. I'm interested in the Rust side of the kernel. To get acquainted, I'm following the Linux Driver Development book, 3rd edition, also integrating it with modern documentation and best practices (or at least I hope so). I'm developing the scull module on top of the `kernel::miscdevice::MiscDevice` trait. Where I'm stuck at is the lack of the `kernel::file::Operations` trait [1], that most online resources refer to. I need such trait to implement read and write operations for the misc device. AFAIU, this trait used to exist but it's no longer in the mainline codebase [2]. Also, `kernel::miscdevice::MiscdeviceVTable` is private inside the miscdevice module, so there's no way I can somehow extend it. Is there any workaround for what I want to achieve, or is ioctl the only allowed interface to misc devices in Rust? Thank you, Fabio. [^1]: https://rust-for-linux.github.io/docs/kernel/file/trait.Operations.html [^2]: https://rust.docs.kernel.org/kernel/fs/index.html

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