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

From: Bagas Sanjaya
Date: Thu Jul 20 2023 - 23:19:09 EST


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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