Re: Question on FIELD_PREP() for static array

[John Garry]

> > Yeah, I have a patch now to reference it, but I don't see anything from
> > -Wvla with gcc 8.1?
>
> I'm using a 7.3.1-based toolchain
>
> > See
> > https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git/commit/?id=3d7af878357acd9e37fc156928106f1a969c8942
> >
> > and its parent.
> >
> > Do you see -Wvla warnings there? Any idea how I could reproduce them?
>
> I'll try it, thanks

3d7af878357acd9e37f builds ok. However I am using 20181010-next (I'm not 
sure what yours is based on), and I just noticed that it includes this 
new guy:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/Makefile?h=next-20181011&id=bc5701d8e27fd8beaf895176982fc6a97878f3b8

When I cherry-pick this onto your codebase@3d7af878357acd9e37f, the 
82011 code has warns.

Thanks,
John


> John
>
> > johannes
> >
> > .