Re: [REGRESSION] Linux kernel 6.12.75 fails to compile with -Werror=implicit-function-declaration

From: Sasha Levin

Date: Thu Mar 05 2026 - 21:58:38 EST


On Thu, Mar 05, 2026 at 11:06:06PM +0100, Peter Schneider wrote:
This gives me some vibes of "It compiles, so let's ship it", which is a questionable level of QA you might expect from some (shady) commercial companies, but I think the Linux community should (and can!) do better.

I really want to highlight this part.

There are no IMA tests I'm aware of (outside of builds with CONFIG_IMA=y).

For that matter, we only see a minority of subsystems actually testing stable
releases.

This is something we've been working to improve for a while, but we're quite
far from that goal.

Sadly your vibes are somewhat grounded in reality.

Sorry if that sounds too harsh. I don't mean it in a harsh way, but only as constructive criticism. I know Greg and you have an extremely complex job with maintaining the stable branches, and normally all works very well and smooth, because both of you are doing a hell of an excellent job! But on occasion when a release was bumpy like this one, we should look back and ask why, and what could have done better, and how we can improve in the future.

This is not, and I appreciate the feedback. Thank you.

--
Thanks,
Sasha