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usb: host: Initiate urb ep with udev ep0

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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: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
Link: https://lore.kernel.org/r/20220824203107.14908-1-khalid.masum.92@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Khalid Masum 2022-08-25 02:31:07 +06:00 • committed by Greg Kroah-Hartman
parent d27c66adb4
commit 9013d8fc0a
1 changed files with 1 additions and 8 deletions
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9
drivers/usb/core/hcd.c
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@ -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;