I tried to disable the onboard graphics on my s2892:

device pci 6.0 off end

But that made it probe 6.1 - 6.7. Since the code only checks for multifunction devices at function 0, all of those responded. So now instead of disabling my card, it had 7 instances of it. I realize that the card probably shouldn't have responded to all of those functions, but it probably doesn't bother checking which function is addressed.

device pci 6.0 off end
device pci 6.1 off end
device pci 6.2 off end
device pci 6.3 off end
device pci 6.4 off end
device pci 6.5 off end
device pci 6.6 off end
device pci 6.7 off end

This worked, but it is non-obvious. I wonder what the "right" way would be to handle this.

Is there any time when you want to disable function 0 but still have all the other functions enabled/probed?

Thanks,
Myles