linux-mod.eclass respect the CONFIG_MODULE_COMPRESS_* setting and compress the module during installation. If MODULE_SIG_* is set, the module should be signed before the compression. Otherwise it will not be loaded by the kernel. Reproducible: Always
I suspect this is really a dupe of bug 447352 but I'll keep it open and just See Also as I haven't looked into this.
*** This bug has been marked as a duplicate of bug 447352 ***