Comment # 38 on bug 1202116 from Stefan Dirsch

(In reply to Steve Dobrinski from comment #37)
> I have difficulties to understand how changes to the GA repositories should
> get around this dependency problem: Even if 'kernel-devel' and
> 'kernel-default-devel' packages were published in GA in different versions,
> a simple system update would always change them to the most up-to-date
> version which would then be incompatible with Nvidia driver builds.

And? The nvidia kernel modules are still built with the right GA version.
Nothing will change
by updating kernel-devel and kernel-default-devel.

> (Re-)Installation of Nvidia RPMs would then require a (forced) downgrade of
> the installed kernel-devel and kernel-default-devel packages, because there
> can be only one version of these packages in the system. 

Which is wrong. You can have several version installed at the same time.

# rpm -qa|grep kernel-devel
kernel-devel-5.14.21-150400.24.11.1.noarch
# rpm -qa|grep kernel-default-devel
kernel-default-devel-5.14.21-150400.24.11.1.x86_64

# zypper in kernel-default-devel
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following 2 NEW packages are going to be installed:
  kernel-default-devel-5.14.21-150400.24.18.1
  kernel-devel-5.14.21-150400.24.18.1

2 new packages to install.
Overall download size: 30,7 MiB. Already cached: 0 B. After the operation,
additional 62,7 MiB will be used.
[]
# rpm -qa|grep kernel-devel
kernel-devel-5.14.21-150400.24.18.1.noarch
kernel-devel-5.14.21-150400.24.11.1.noarch
# rpm -qa|grep kernel-default-devel
kernel-default-devel-5.14.21-150400.24.11.1.x86_64
kernel-default-devel-5.14.21-150400.24.18.1.x86_64

> The next system
> update would then update kernel-devel and kernel-default-devel again ...

I'm not sure but it would not matter.

> If kernel ABIs nowadays may break with newer versions of the kernel, there
> is no way to use modules compiled at random system states for all kernel
> versions. 

Depends on how you define kABI breakage. If symbols are just added, what was
the issue her,
things can be fixed by always building against the GA version.

> Maybe switch to DKMS consequently and build the modules for every single
> kernel version instead of trying to link modules around?

Feel free to discuss this in a separate ticket or on your favorite openSUSE
mailing list.