Commit 9013d8fc authored by Khalid Masum's avatar Khalid Masum Committed by Greg Kroah-Hartman
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usb: host: Initiate urb ep with udev ep0 



Currently we look up for endpoint in a table and initate urb endpoint
with it. This is unnecessary because the lookup will always result in
endpoint 0.

Suggested-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarKhalid Masum <khalid.masum.92@gmail.com>
Link: https://lore.kernel.org/r/20220824203107.14908-1-khalid.masum.92@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d27c66ad

drivers/usb/core/hcd.c

+1 −8
Original line number Diff line number Diff line
@@ -2158,21 +2158,14 @@ static struct urb *request_single_step_set_feature_urb( 
{

	struct urb *urb;

	struct usb_hcd *hcd = bus_to_hcd(udev->bus);

	struct usb_host_endpoint *ep;



	urb = usb_alloc_urb(0, GFP_KERNEL);

	if (!urb)

		return NULL;



	urb->pipe = usb_rcvctrlpipe(udev, 0);

	ep = (usb_pipein(urb->pipe) ? udev->ep_in : udev->ep_out)

				[usb_pipeendpoint(urb->pipe)];

	if (!ep) {

		usb_free_urb(urb);

		return NULL;

	}



	urb->ep = ep;

	urb->ep = &udev->ep0;

	urb->dev = udev;

	urb->setup_packet = (void *)dr;

	urb->transfer_buffer = buf;