linux-kernel - Fwd: 6.4.4 breaks module-free builds of Debian kernel packages

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Message-ID: <e7292802-e517-6469-6fbd-a4d30887c99b@gmail.com>
Date:   Fri, 21 Jul 2023 10:18:56 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Josh Triplett <josh@...htriplett.org>,
        Nicolas Schier <nicolas@...sle.eu>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        Brian Lindholm <brian_lindholm@...rs.sourceforge.net>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Regressions <regressions@...ts.linux.dev>,
        Linux Stable <stable@...r.kernel.org>,
        Linux Kernel Build System <linux-kbuild@...r.kernel.org>
Subject: Fwd: 6.4.4 breaks module-free builds of Debian kernel packages

Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> I'm on AMD64 with Debian testing (trixie), where I build my own kernels (with CONFIG_MODULES unset) using "make bindeb-pkg". The build proceeds through 99% of the process, but fails here:
> 
> Kernel: arch/x86/boot/bzImage is ready  (#2)
> make -f ./Makefile ARCH=x86     KERNELRELEASE=6.4.4-i5 intdeb-pkg
> sh ./scripts/package/builddeb
> ***
> *** The present kernel configuration has modules disabled.
> *** To use the module feature, please run "make menuconfig" etc.
> *** to enable CONFIG_MODULES.
> ***
> make[5]: *** [Makefile:1969: modules_install] Error 1
> make[4]: *** [scripts/Makefile.package:150: intdeb-pkg] Error 2
> make[3]: *** [Makefile:1657: intdeb-pkg] Error 2
> make[2]: *** [debian/rules:16: binary-arch] Error 2
> dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
> make[1]: *** [scripts/Makefile.package:139: bindeb-pkg] Error 2
> make: *** [Makefile:1657: bindeb-pkg] Error 2
> 
> 6.3.13 contained the same error, but I "fixed" that by moving to 6.4.3.  But alas, 6.4.4 now has the same issue.
> 
> I worked around the issue by changing "exit 1" to "exit 0" in the main Makefile (at "modules module_install", per the attached patch), but I don't know if this is a true fix or something that simply happens to work for my particular configuration.

See Bugzilla for the full thread and attached patch that ignores the error.

Josh: It looks like this regression is caused by a commit of yours
(and also 1240dabe8d58b4). Would you like to take a look on it?

Anyway, I'm adding this regression to be tracked by regzbot:

#regzbot introduced: 4243afdb932677 https://bugzilla.kernel.org/show_bug.cgi?id=217689
#regzbot title: always doing modules_install breaks CONFIG_MODULES=n builds

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=217689

-- 
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