Comment # 5 on bug 1177577 from Fabian Vogt

(In reply to Takashi Iwai from comment #3)
> The current way to list up all modules explicitly, and I guess it's hard to
> process the list at the build time.  Maybe this needs two step processes:
> one to prepare the module list from modinfo of modules included in the
> target kernel, then repackage from the list.

I made a sr which does this:

%define crypto_modules \
%(rpm -ql %{kernel_package_name} | grep -E
'kernel/crypto/|kernel/arch/.*/crypto/' | xargs basename -a | cut -d. -f1)

I don't really like that it's fragile (rpm ignores errors), but other than that
it's definitely better than mentioning everything explicitly IMO. What do you
think?