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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-01-12 17:50:02 +1100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-01-22 15:34:37 +0100
commit11fb37998759c48e4e4c200c974593cbeab25d3e (patch)
treedd9ede5d130a813b6cec7798d06a3897c97e09c9 /drivers/usb
parent0cb5818a3b250de64e02592f4584f7c21d9566b8 (diff)
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. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 1b3efb14aec7..ac0541529499 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -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) {