[PATCH] USB: xen-hcd: Traverse host/ when CONFIG_USB_XEN_HCD is selected

[John Ernberg <john.ernberg@xxxxxxxx>]

If no other USB HCDs are selected when compiling a small pure virutal
machine, the Xen HCD driver cannot be built.

Fix it by traversing down host/ if CONFIG_USB_XEN_HCD is selected.

Fixes: 494ed3997d75 ("usb: Introduce Xen pvUSB frontend (xen hcd)")
Cc: stable@xxxxxxxxxxxxxxx # v5.17+
Signed-off-by: John Ernberg <john.ernberg@xxxxxxxx>
---
 drivers/usb/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 3a9a0dd4be70..949eca0adebe 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_USB_R8A66597_HCD)        += host/
 obj-$(CONFIG_USB_FSL_USB2)     += host/
 obj-$(CONFIG_USB_FOTG210_HCD)  += host/
 obj-$(CONFIG_USB_MAX3421_HCD)  += host/
+obj-$(CONFIG_USB_XEN_HCD)      += host/
 
 obj-$(CONFIG_USB_C67X00_HCD)   += c67x00/
 
-- 
2.45.0