linux-kernel - Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME

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Date:   Wed, 3 Oct 2018 22:37:29 -0300
From:   Leonardo Bras <leobras.c@...il.com>
To:     Finn Thain <fthain@...egraphics.com.au>
Cc:     Robert Richter <rric@...nel.org>, lkcamp@...ts.libreplanetbr.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-m68k@...ts.linux-m68k.org, oprofile-list@...ts.sf.net,
        linux-parisc@...r.kernel.org, linux-s390@...r.kernel.org,
        James Bottomley <James.Bottomley@...senpartnership.com>
Subject: Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME

On Wed, Oct 3, 2018 at 8:27 PM Finn Thain <fthain@...egraphics.com.au> wrote:
>
> On Wed, 3 Oct 2018, Leonardo Bras wrote:
>
> >
> > Sorry, I was not very clear at my reasons why this change is important,
> > I will try to briefly explain the whole story.
> >
> > Some weeks ago I was trying to solve a task that needed to change some
> > compiling options, build the whole kernel (allyesconfig) and look for
> > errors. The problem was: It would take a long time to build everything
> > in my computer. And many friends with slimmer laptops would take much
> > longer.
> >
>
> It seems to me that you shouldn't need expensive optimization for
> continuous integration. In theory that could make a big difference though
> I admit to no experience of build farms.
>
> Have you looked at ccache? It will save you from having to recompile any
> files not changed.
>
> You could also leverage all of your laptops together using distcc.
>
> HTH.
>
> --

Both ccache and distcc seem very interesting,
I will take my time to study them better as they can solve some situations
I face. Thanks for sharing!

Still, I believe my patchset is relevant, as it would enable people to rebuild
the whole kernel (with build flags changes, for example) at the cost of only
git-pushing the changes to a fork of my Gitlab repo, and waiting 3 hours.

Thanks for helping!