Commit 0ed023a8 authored by Michal Pecio's avatar Michal Pecio Committed by Greg Kroah-Hartman
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usb: xhci: Update a comment about Stop Endpoint retries 



Retries are no longer gated by a quirk, so remove that part.
Add a brief explanation of the timeout.

Signed-off-by: default avatarMichal Pecio <michal.pecio@gmail.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250917210726.97100-3-mathias.nyman@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 08fa726e

drivers/usb/host/xhci-ring.c

+3 −2
Original line number Diff line number Diff line
@@ -1262,8 +1262,9 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id, 
			 * Stopped state, but it will soon change to Running.

			 *

			 * Assume this bug on unexpected Stop Endpoint failures.

			 * Keep retrying until the EP starts and stops again, on

			 * chips where this is known to help. Wait for 100ms.

			 * Keep retrying until the EP starts and stops again or

			 * up to a timeout (a defective HC may never start, or a

			 * driver bug may cause stopping an already stopped EP).

			 */

			if (time_is_before_jiffies(ep->stop_time + msecs_to_jiffies(100)))

				break;