Re: [GIT PULL] tracing: Fixes and clean ups for v5.14

[Randy Dunlap]

On 8/12/21 10:54 AM, Linus Torvalds wrote:
> On Thu, Aug 12, 2021 at 7:33 AM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> > That was my take too, when this was first addressed:
> >
> >    https://lore.kernel.org/lkml/20210730204050.46975ae2@xxxxxxxxxxxxxxxx/
> >
> > > The commit message talks about "some compilers/analyzers" without any
> > > explanation, and the "Link:" thing doesn't link to anything useful
> > > either.

Yes, Steven wanted to use -Wno-main or whatever it is called from
the start.

> > I should have added the above link. :-/
>
> Even the above link doesn't explain it to me.
>
> What is it that gives this crazy garbage warning?
Some tool called gcc.

> It looks like Randy Dunlap compiles with the '-Wmain' flag, and then
> complains about it hurting.

I just used some default settings. I didn't choose to use -Wmain.

> It's a classic case of "Doctor, doctor, it hurts when I hit myself in
> the head with an ice pick".
>
> The solution is not to take some Ibuprofen.
>
> The solution is DON'T DO THAT THEN.
>
> People who build with W=2 or some other crazy thing need to understand
> that the bad warnings it exposes are not kernel problems, they are
> THEIR problems.

Nah, it's a tooling problem.

--
~Randy