usb: xhci: fix build warning - missing prototype

Quoted 9 lines · Greg KH

Quoted 4 lines · Mathias Nyman

From: Jean-Philippe Menil <[email protected]>

Fix build warning when building drivers/usb/host/xhci-mem.o due to missing prototype for xhci_free_virt_devices_depth_first.

There is no normal "build warning", this is a sparse fixup, right?

Hi Greg,

this is a build warning, at least with W=1 :

drivers/usb/host/xhci-mem.c:936:6: warning: no previous prototype for ‘xhci_free_virt_devices_depth_first’ [-Wmissing-prototypes]
void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int
slot_id)