I found the problem:
in pic8259_interface savquest_pic8259_1_config, the DEVCB_MEMBER(savquest_state,get_slave_ack) should be DEVCB_DRIVER_MEMBER(savquest_state,get_slave_ack) It looks like the interface changed and the driver was never updated. funkball.c, midqslvr.c, queen.c, and xtom3d.c appear to be affected similarly.
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