IIRC, it was not about Rust vs. C, but a commotion rooted from patch quality and not pushing people around about things.
Linux Kernel team has this habit of a forceful pushback which breaks souls and hearts when prodded too much.
Looks like Hector has deleted his Mastodon account, so I can't look back what he said exactly.
Oh, I still have the relevant tab open. It's about code quality: https://news.ycombinator.com/item?id=43043312
> Looks like Hector has deleted his Mastodon account, so I can't look back what he said exactly.
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Yes. I remember that message.
Also let's not forget what marcan said [0] [1].
In short, a developer didn't want their C codebase littered with Rust code, which I can understand, then the Rust team said that they can maintain that part, not complicating his life further (Kudos to them), and the developer lashing out to them to GTFO of "his" lawn (which I understand again, not condone. I'd have acted differently).
This again boils down to code quality matters. Rust is a small child when compared to the whole codebase, and weariness from old timers is normal. We can discuss behaviors till the eternity, but humans are humans. You can't just standardize everything.
Coming to marcan, how he behaved is a big no in my book, too. Because it's not healthy. Yes, the LKML is not healthy, but this is one of the things which makes you wrong even when you're right.
I'm also following a similar discussion list, which has a similar level of friction in some matters, and the correct thing is to taking some time off and touching grass when feeling tired and being close to burnout. Not running like a lit torch between flammable people.
One needs to try to be the better example esp. when the environment is not in an ideal shape. It's the hardest thing to do, but it's the most correct path at the same time.
[0]: https://web.archive.org/web/20250205004552mp_/https://lwn.ne...
[1]: https://lkml.org/lkml/2025/2/6/404
If I had been enthusiastic about Rust, and wanted to see if it could maybe make sense for Rust to be part of the Linux kernel[0], I would probably had turned my attention to gccrs.
What is then extra strange is that there have been some public hostility against gccrs (WIP Rust compiler for gcc) from the rustc (sole main Rust compiler primarily based on LLVM) camp.
It feels somewhat like a corporate takeover, not something where good and benign technology is most important.
And money is at stake as well, the Rust Foundation has a large focus on fundraising, like how their progenitors at Mozilla/Firefox have or had a large focus on fundraising. And then there are major Rust proponents who openly claim, also here on Hacker News, that software and politics are inherently entwined.
[0]: And also not have it as a strict goal to get Rust into the kernel, for there might be the possibility that Rust was discovered not to be a good fit; and then one could work on that lack of fit after discovery and maybe later make Rust a good fit.