usb: xhci: annotate switch/case fallthrough properly
The USB XHCI code uses an implicit switch/case fallthrough to share code
for handling full speed and low speed transfers.
Add our "fallthrough;" statement-like macro before the second label in
the XHCI code, to avoid a warning when GCC's -Wimplicit-fallthrough
warning option is enabled.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d30725d3..3ee1f67 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -352,7 +352,7 @@
* since it uses the same rules as low speed interrupt
* endpoints.
*/
-
+ fallthrough;
case USB_SPEED_LOW:
if (usb_endpoint_xfer_int(endpt_desc) ||
usb_endpoint_xfer_isoc(endpt_desc)) {