diff mbox series

[v2] usb: host: Initiate urb ep with udev ep0

Message ID 20220824203107.14908-1-khalid.masum.92@gmail.com
State New
Headers show
Series [v2] usb: host: Initiate urb ep with udev ep0 | expand

Commit Message

Khalid Masum Aug. 24, 2022, 8:31 p.m. UTC 
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>
Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
---
Changes since v1:
 - Remove endpoint lookup and NULL check
 - Remove unnecessary variable *ep
 - Initiate urb ep with udev ep0
 - Update commit message
 - v1 Link: https://lore.kernel.org/lkml/20220824130702.10912-1-khalid.masum.92@gmail.com/ 

 drivers/usb/core/hcd.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 94b305bbd621..05f30ae5570b 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -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;