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authorMichal Pecio <michal.pecio@gmail.com>2025-09-18 00:07:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-09-18 09:53:11 +0200
commit0ed023a88396088d4221c345a3911f553dd42598 (patch)
tree5d96f11066a91f54ee0a92adeb3c06f1b6faf1db
parent08fa726e66039dfa80226dfa112931f60ad4c898 (diff)
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: Michal Pecio <michal.pecio@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250917210726.97100-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/xhci-ring.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index d7bef1dd519f..543cbec560c5 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1262,8 +1262,9 @@ reset_done:
* 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;