[v2,2/6] usb: dwc3: ep0: use _roundup_ to calculate the transfer size
diff mbox

Message ID 1437720436-4261-3-git-send-email-kishon@ti.com
State New
Headers show

Commit Message

Kishon Vijay Abraham I July 24, 2015, 6:47 a.m. UTC
No functional change. Used _roundup_ macro to calculate the transfer
size aligned to maxpacket in  dwc3_ep0_complete_data. It also makes it
similar to how transfer size is calculated in __dwc3_ep0_do_control_data.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/usb/dwc3/ep0.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

Patch
diff mbox

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 8858c60..713e46a 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -812,10 +812,8 @@  static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	length = trb->size & DWC3_TRB_SIZE_MASK;
 
 	if (dwc->ep0_bounced) {
-		unsigned transfer_size = ur->length;
 		unsigned maxp = ep0->endpoint.maxpacket;
-
-		transfer_size += (maxp - (transfer_size % maxp));
+		unsigned transfer_size = roundup(ur->length, maxp);
 
 		/* Maximum of DWC3_EP0_BOUNCE_SIZE can only be received */
 		if (transfer_size > DWC3_EP0_BOUNCE_SIZE)