[PATCH 1/4] usb: gadget: dummy_hcd: fix SuperSpeed ep0 maxpacket

For USB_SPEED_SUPER, dummy_hcd sets ep0 maxpacket to 9.
That is incorrect for SuperSpeed ep0 and breaks short packet handling
in control transfer tests.

Set ep0 maxpacket to 512 for SuperSpeed.

Fixes: 1cd8fd2887e1 ("usb: gadget: dummy_hcd: add SuperSpeed support")
Signed-off-by: Igor Skalkin <[email protected]>
---
 drivers/usb/gadget/udc/dummy_hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index f47903461ed5..29f671c7b319 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -896,7 +896,7 @@ static int dummy_set_selfpowered(struct usb_gadget *_gadget, int value)
 static void dummy_udc_update_ep0(struct dummy *dum)
 {
 	if (dum->gadget.speed == USB_SPEED_SUPER)
-		dum->ep[0].ep.maxpacket = 9;
+		dum->ep[0].ep.maxpacket = 512;
 	else
 		dum->ep[0].ep.maxpacket = 64;
 }
-- 
2.49.0