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Some kernel maintainers are real blockheads about code cleanups. And being like that doesn't make you look established and sophisticated, instead it makes you look like what you actually are, a relic.
Benjamin Herrenschmidt's profile photoChmouel Boudjnah's profile photo
Every now and then I dust off something for one reason or another such as fixing up a driver for an api change or looking at a lockdep report... and end up spending a week fixing bugs in years old code :-) Things do bitrot and an occasional cleanup is often a good way to get rid of a few skelettons including exoloitable bugs... the trick is to add less new ones than you just removed !