Re: [PATCH] kcsan, compiler_types: avoid duplicate type issues in BPF Type Format

[Andrew Morton]

On Tue, 27 Jan 2026 16:02:32 -0800 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote:

> > compiler_types.h appears to be a free-for-all.  It's best to view such
> > a thing as a KCSAN patch rather than a compiler_types.h patch - that
> > the patch affects compiler_types.h is incidental.
> >
> > 31f605a308e6 came in via paulmck so convention (which perhaps only I
> > maintain) says "Paul", but whatever - getting the fix merged is the
> > important part.
> >
> > So I'll grab Alan's patch, shall drop if it pops up in -next via a
> > different route.   Aiming for upstreaming in the next merge window.
> 
> You mean in the upcoming merge window, right?

Yes.

It could be added to 6.19-rcX/-stable if there's a need?

> The severity of the bug is significant. Better to land it sooner
> rather than later.

OK, that wasn't clear to me from the changelog.

> > It's unclear whether a -stable backport is required.  Thoughts on this
> > are sought.
> 
> Yes, since without it kcsan and bpf are mutually exclusive.

OK, cc:stable added.