linux-kernel - Re: [PATCH] [v2] staging: rtl8723bs: avoid bogus gcc warning

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Message-ID: <CAK8P3a1TN6r6p=2ZTQ_3f=5hK7n31VwzagCiy7ukG4Occ_3GYA@mail.gmail.com>
Date:   Tue, 27 Apr 2021 15:00:28 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Dan Carpenter <dan.carpenter@...cle.com>,
        Fabio Aiuto <fabioaiuto83@...il.com>,
        Ross Schmidt <ross.schm.dev@...il.com>,
        Marco Cesati <marcocesati@...il.com>,
        Johannes Berg <johannes.berg@...el.com>,
        Ivan Safonov <insafonov@...il.com>,
        linux-staging@...ts.linux.dev,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] [v2] staging: rtl8723bs: avoid bogus gcc warning

On Tue, Apr 27, 2021 at 2:42 PM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Tue, Apr 27, 2021 at 01:59:32PM +0200, Arnd Bergmann wrote:
> > On Tue, Apr 27, 2021 at 11:33 AM Greg Kroah-Hartman
> > <gregkh@...uxfoundation.org> wrote:

> > >
> > > What version of gcc causes this?  Should this go into 5.13-final and be
> > > backported?  Or is this only showing up on "unreleased" versions of gcc
> > > and it is safe to wait until 5.14?
> >
> > As I understand, this is related to
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99673
> >
> > gcc-11.1.0 has now been released and it produces this warning.
>
> What's the odds we can get gcc to fix their bug, as it's not a kernel
> issue?  :)

I think there is a high chance it will get fixed in gcc-11.2 or 12.1, but
anyone using gcc-11.1 will still have the problem.

        Arnd