Hello.
On 11/18/2016 06:06 PM, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
This is a note to let you know that I've just added the patch titled
usb: gadget: udc: dummy: make use of new usb_endpoint_maxp_mult()
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 ee8ac85596ec0b45c7dd49e2a2a0af50f98542cd Mon Sep 17 00:00:00 2001
From: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Date: Wed, 28 Sep 2016 13:30:59 +0300
Subject: usb: gadget: udc: dummy: make use of new usb_endpoint_maxp_mult()
We have introduced a helper to calculate multiplier
value from wMaxPacketSize. Start using it.
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: <linux-usb@xxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/gadget/udc/dummy_hcd.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 77d07904f932..14004cf88d4d 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -1483,8 +1483,7 @@ static int periodic_bytes(struct dummy *dum, struct dummy_ep *ep)
int tmp;
/* high bandwidth mode */
- tmp = usb_endpoint_maxp(ep->desc);
- tmp = (tmp >> 11) & 0x03;
+ tmp = usb_endpoint_maxp_mult(ep->desc);
Wait, don't you need to subtract 1 here?
tmp *= 8 /* applies to entire frame */;
limit += limit * tmp;
}
MBR, Sergei
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