usb: core: config: using bit mask instead of individual bits
commit ca5737396927afd4d57b133fd2874bbcf3421cdb upstream. Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for extracting multiple-transactions bits from wMaxPacketSize value. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com> Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
d1eee0a393
commit
8d45969ca3
@ -425,9 +425,9 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
|
|||||||
maxpacket_maxes = full_speed_maxpacket_maxes;
|
maxpacket_maxes = full_speed_maxpacket_maxes;
|
||||||
break;
|
break;
|
||||||
case USB_SPEED_HIGH:
|
case USB_SPEED_HIGH:
|
||||||
/* Bits 12..11 are allowed only for HS periodic endpoints */
|
/* Multiple-transactions bits are allowed only for HS periodic endpoints */
|
||||||
if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
|
if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
|
||||||
i = maxp & (BIT(12) | BIT(11));
|
i = maxp & USB_EP_MAXP_MULT_MASK;
|
||||||
maxp &= ~i;
|
maxp &= ~i;
|
||||||
}
|
}
|
||||||
/* fallthrough */
|
/* fallthrough */
|
||||||
|
Loading…
Reference in New Issue
Block a user