Re: [PATCH 5.8 108/177] gcov: Disable gcov build with GCC 10

[Sasha Levin]

On Tue, Sep 15, 2020 at 10:24:25AM -0700, Linus Torvalds wrote:
> On Tue, Sep 15, 2020 at 7:28 AM Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > GCOV built with GCC 10 doesn't initialize n_function variable.  This
> > produces different kernel panics as was seen by Colin in Ubuntu and me
> > in FC 32.
> >
> > As a workaround, let's disable GCOV build for broken GCC 10 version.
>
> Oh, Peter Oberparleiter actually figured out what was wrong, and we
> have commit 40249c696207 ("gcov: add support for GCC 10.1") upstream
> that enables it again with the fix for the changed semantics in
> gcc-10.

AUTOSEL spotted it
(https://lore.kernel.org/stable/20200914130358.1804194-27-sashal@xxxxxxxxxx/),
and I didn't want to rush it in given it doesn't have a fixes/stable
tag.

I'll queue it up for this cycle as you've pointed it out.

--
Thanks,
Sasha