Looks like upstream is dead, at least the link mentioned in the patches.
> JJ DaNiMoTh via aur-requests <aur-requests@archlinux.org> hat am 16. Februar > 2018 um 20:03 geschrieben: > > > > THe patches are for that kernel. I have to check if they work on newer, > and since it is a production package, it's not so easy. > > > On 14/02/18 at 03:51pm, not...@aur.archlinux.org wrote: > > FredBezies [1] filed a deletion request for linux-wave [2]: > > > > Long dead kernel upstream. > > > > [1] https://aur.archlinux.org/account/FredBezies/ > > [2] https://aur.archlinux.org/pkgbase/linux-wave/