xen: dbgp: Fix warning when CONFIG_PCI is not enabled.
I saw this on ARM:
linux/drivers/xen/dbgp.c:11:23: warning: unused variable 'ctrlr' [-Wunused-variable]
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
index 42569c7..f3ccc80 100644
--- a/drivers/xen/dbgp.c
+++ b/drivers/xen/dbgp.c
@@ -8,7 +8,9 @@
static int xen_dbgp_op(struct usb_hcd *hcd, int op)
{
+#ifdef CONFIG_PCI
const struct device *ctrlr = hcd_to_bus(hcd)->controller;
+#endif
struct physdev_dbgp_op dbgp;
if (!xen_initial_domain())