From: Justin M. Forbes on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1382#note_7211...
That is really a RHEL call, it just seemed the natural thing to do given it
exists. Either way, it needs to be wrapped, because this driver is just as
supported as anything else we build for Fedora, and should not taint the
Fedora kernel.
```
#ifdef CONFIG_RHEL_DIFFERENCES
add_taint(TAINT_SUPPORT_REMOVED, LOCKDEP_STILL_OK);
pr_warn("E1000 MODULE IS NOT SUPPORTED\n");
#endif
```
Or replace the pr_warn with mark_driver_unsupported.