Jakub Kicinski [off-list ref] wrote:

Oh, Deutsche Telekom, ISDN and now DCCP?
I wonder if we could make one of them a maintainer, because DCCP
is an Orphan.. but then the GH tree has such gold as:
net/dccp/non_gpl_scheduler/ 

Could just mark it CONFIG_BROKEN or rip it out
altogether.  It can be brought back if anyone cares.