There is a check for "non-trivial" unused parameters. I would like to propose a check and a fixup for all unused parameters. Use case: We had a project in which we have a mock object mocking a wide API, with lots of methods and lots of arguments for each of these. Most methods are unimplemented, but they sprayed the compile output with warnings. I commented out all the offending argument names, but it would have been nice to be able to quickly apply a fixup to them instead. Fixup could be either the commenting out, or perhaps inserting a Q_UNUSED(<parameter name>) at the top of the implementation.