patch "usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()" added to usb-testing

This is a note to let you know that I've just added the patch titled

usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-testing branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.

From: Benjamin Herrenschmidt <[email protected]>
Date: Fri, 12 Jan 2018 17:50:02 +1100
Subject: usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()

The current code tries to test for bits that are masked out by usb_endpoint_maxp(). Instead, use the proper accessor to access the new high bandwidth bits.

---
 drivers/usb/gadget/udc/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 1b3efb14aec7..ac0541529499 100644
@@ -912,7 +912,7 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
 		return 0;
 
 	/* "high bandwidth" works only at high speed */
-	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp_mult(desc) > 1)
 		return 0;
 
 	switch (type) {

2.16.0