Proper way to remove never used ioctls

[Warner Losh]

On Sat, Jun 2, 2018 at 7:33 AM, Vladimir Kondratyev <vladimir at kondratyev.su>
wrote:

> Hi,
>
> Our sys/mouse.h header has a definition of MOUSE_GETVARS and MOUSE_SETVARS
> ioctls which are not documented and only stubbed in a few drivers: mse(4),
> psm(4) and syscon's sysmouse(4). The only exception is MOUSE_GETVARS
> implemented in psm(4)
>
> Given the fact that they were introduced 20 years ago, implementation was
> never completed and googling on them shows no traces of usage in indexed
> universe, is it acceptable to just drop both defines and implementation
> w.o. leaving any COMPAT_FREEBSD shims?


I'd prepare a patch just removing them. I'd then send that patch to the
ports mgr team and request a exp-run. Details for that can be found in
https://www.freebsd.org/doc/en_US.ISO8859-1/articles/committers-guide/ports.html

Once that's done, submit a Phabricator review and send me email. I'll make
sure it gets pushed in if there's no objections.

Warner