MarsSeed [1] filed a deletion request for acpi_call-pf [2]: Actually this abandoned package from 2016 should not be needed.
Extra repo carries acpi_call-dkms, that should be just as well installable for the linux-pf kernel via dkms. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/acpi_call-pf/
