linux-kernel - Re: [PATCH v3 1/1] kbuild: deb-pkg: Build parallely with current dpkg-buildpackage

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Date:   Mon, 10 Apr 2023 21:26:32 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Bastian Germann <bage@...utronix.de>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] kbuild: deb-pkg: Build parallely with current dpkg-buildpackage

On Tue, Mar 21, 2023 at 7:28 PM Bastian Germann <bage@...utronix.de> wrote:
>
> Am 21.03.23 um 11:18 schrieb Masahiro Yamada:
> > "make bindeb-pkg" also runs in 16 threads because
> > $(DEB_BUILD_OPTIONS) always contains "parallel=16"
> > even if -j<N> option is given at all.
> >
> > In other words, this patch will take away user's freedom
> > to choose the number of threads.
>
> Okay. To solve this, I would forward make's -j option to the dpkg-buildpackage calls,
> which is now called with the defaults.

Yes. Agreed.



> I think you should see the warning with older dpkg-buildpackage versions without the
> patch applied as well because their default is dpkg-buildpackage -j`nproc` and is in
> effect currently.



-- 
Best Regards
Masahiro Yamada