linux-kernel - Re: Build regressions/improvements in v5.18-rc1

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Date:   Tue, 5 Apr 2022 08:46:06 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Kalle Valo <kvalo@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Parisc List <linux-parisc@...r.kernel.org>,
        sparclinux <sparclinux@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
        Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        scsi <linux-scsi@...r.kernel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        linux-xfs@...r.kernel.org,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        linux-s390 <linux-s390@...r.kernel.org>
Subject: Re: Build regressions/improvements in v5.18-rc1

Hi Kalle,

On Mon, Apr 4, 2022 at 8:39 PM Kalle Valo <kvalo@...nel.org> wrote:
> Geert Uytterhoeven <geert@...ux-m68k.org> writes:
> >> /kisskb/src/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:
> >> error: case label does not reduce to an integer constant: => 3798:2,
> >> 3809:2
> >
> > arm64-gcc5.4/arm64-allmodconfig
> > powerpc-gcc5/powerpc-allmodconfig
> > powerpc-gcc5/ppc64_book3e_allmodconfig
>
> After v5.17 there were two commits to brcmfmac/sdio.c:
>
> $ git log --oneline v5.17.. drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
> ed26edf7bfd9 brcmfmac: Add BCM43454/6 support
> 6d766d8cb505 brcmfmac: pcie: Declare missing firmware files in pcie.c
>
> I can't see how either of them could cause this warning. Could something
> else cause this or am I missing something?

Doh, I should not have reduced the CC list in the xfs subthread...

The builds above are all gcc-5 builds, so they are affected by the same
issue as XFS: unsigned constants that don't fit in int are lacking a
"U" suffix.

I assume Arnd's patch for
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
fixes this?
https://lore.kernel.org/all/CAK8P3a0wRiS03imdXk2WbGONkSSczEGdE-ue5ubF6UyyDE9dQg@mail.gmail.com

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds