On Sun, 19 Jan 2020, Ansuel Smith wrote: > If USB_PCI is not enabled, this error is triggered. > drivers/usb/host/ehci-pci.c:152:7: > error: implicit declaration of function 'usb_amd_quirk_pll_check'; > 152 | if (usb_amd_quirk_pll_check()) > | ^~~~~~~~~~~~~~~~~~~~~~~ > | usb_amd_quirk_pll_enable > > Signed-off-by: Ansuel Smith <ansuelsmth@xxxxxxxxx> I'm a little confused by this. ehci-pci.c doesn't get compiled unless CONFIG_USB_EHCI_PCI is set, and that symbol depends on CONFIG_USB_PCI. So how can this situation ever occur? Alan Stern