linux-kernel - Re: [PATCH 1/2] staging: octeon: delete driver

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Message-ID: <CAMuHMdXKtJEvwRViRpy4nHbxv68P_rCFWbpikw=BMM5XnBvD2A@mail.gmail.com>
Date:   Wed, 5 Feb 2020 10:03:18 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Dan Carpenter <dan.carpenter@...cle.com>,
        Matthew Wilcox <willy@...radead.org>,
        Chris Packham <Chris.Packham@...iedtelesis.co.nz>,
        "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        "brandonbonaby94@...il.com" <brandonbonaby94@...il.com>,
        "julia.lawall@...6.fr" <julia.lawall@...6.fr>,
        "yuehaibing@...wei.com" <yuehaibing@...wei.com>,
        "paulburton@...nel.org" <paulburton@...nel.org>,
        "aaro.koskinen@....fi" <aaro.koskinen@....fi>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "fw@...len.de" <fw@...len.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ddaney@...iumnetworks.com" <ddaney@...iumnetworks.com>,
        "bobdc9664@...nam.cz" <bobdc9664@...nam.cz>,
        "sandro@...ery.com" <sandro@...ery.com>,
        "ivalery111@...il.com" <ivalery111@...il.com>,
        "ynezz@...e.cz" <ynezz@...e.cz>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "wambui.karugax@...il.com" <wambui.karugax@...il.com>
Subject: Re: [PATCH 1/2] staging: octeon: delete driver

On Wed, Feb 5, 2020 at 4:57 AM Guenter Roeck <linux@...ck-us.net> wrote:
> On 2/4/20 7:34 PM, Dan Carpenter wrote:
> > On Tue, Feb 04, 2020 at 12:31:16PM -0800, Matthew Wilcox wrote:
> >> On Tue, Feb 04, 2020 at 08:06:14PM +0000, Chris Packham wrote:
> >>> On Tue, 2020-02-04 at 07:09 +0000, gregkh@...uxfoundation.org wrote:
> >>>> On Tue, Feb 04, 2020 at 04:02:15AM +0000, Chris Packham wrote:
> >>> On Tue, 2020-02-04 at 10:21 +0300, Dan Carpenter wrote:
> >>>> My advice is to delete all the COMPILE_TEST code.  That stuff was a
> >>>> constant source of confusion and headaches.
> >>>
> >>> I was also going to suggest this. Since the COMPILE_TEST has been a
> >>> source of trouble I was going to propose dropping the || COMPILE_TEST
> >>> from the Kconfig for the octeon drivers.
> >>
> >> Not having it also causes problems.  I didn't originally add it for
> >> shits and giggles.
> >
> > I wonder if the kbuild bot does enough cross compile build testing these
> > days to detect compile problems.  It might have improved to the point
> > where COMPILE_TEST isn't required.

It depends...

> Not really. Looking at the build failures in the mainline kernel right now:
>
> Failed builds:
>         alpha:allmodconfig
>         arm:allmodconfig
>         i386:allyesconfig
>         i386:allmodconfig
>         m68k:allmodconfig
>         microblaze:mmu_defconfig
>         mips:allmodconfig
>         parisc:allmodconfig
>         powerpc:allmodconfig
>         s390:allmodconfig
>         sparc64:allmodconfig

I did receive a report from noreply@...erman.id.au for the m68k build
failure. But that was sent to me only, not to the offender, and I do my
own builds anyway.

More interesting, that report happened after the offending commit landed
upstream, while it had been in next for 4 weeks.

> Many of those don't even _have_ specific configurations causing the build failures.

Exactly. These are the "easy" ones, as the all*config builds enable as
much infrastructure as possible.  It's much harder if some common
dependency is not fulfilled in some specific config.

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