bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch b/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch
deleted file mode 100644 (file)
index 4c61ee0..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From dedd960b894217ae0960a7ac493def9edfa96905 Mon Sep 17 00:00:00 2001
-From: Jonathan Bell <jonathan@raspberrypi.com>
-Date: Wed, 11 Aug 2021 15:33:57 +0100
-Subject: [PATCH] usb: xhci: workaround for bogus SET_DEQ_PENDING
- endpoint state
-
-See https://github.com/raspberrypi/linux/issues/3981
-
-An unknown unsafe memory access can result in the ep_state variable
-in xhci_virt_ep being trampled with a stuck SET_DEQ_PENDING state
-despite successful completion of a Set TR Deq Pointer command.
-
-All URB enqueue/dequeue calls for the endpoint will fail in this state
-so no transfers are possible until the device is reconnected.
-
-As a workaround, clear the flag if we see it set and issue a new Set
-TR Deq command anyway - this should be harmless, as a prior Set TR Deq
-command will only have been issued in the Stopped state, and if the
-endpoint is Running then the controller is required to ignore it and
-respond with a Context State Error event TRB.
-
-Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
----
- drivers/usb/host/xhci-ring.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
---- a/drivers/usb/host/xhci-ring.c
-+++ b/drivers/usb/host/xhci-ring.c
-@@ -4270,9 +4270,9 @@ void xhci_queue_new_dequeue_state(struct
-       }
-       ep = &xhci->devs[slot_id]->eps[ep_index];
-       if ((ep->ep_state & SET_DEQ_PENDING)) {
--              xhci_warn(xhci, "WARN Cannot submit Set TR Deq Ptr\n");
--              xhci_warn(xhci, "A Set TR Deq Ptr command is pending.\n");
--              return;
-+              xhci_warn(xhci, "WARN A Set TR Deq Ptr command is pending for slot %u ep %u\n",
-+                        slot_id, ep_index);
-+              ep->ep_state &= ~SET_DEQ_PENDING;
-       }
- 
-       /* This function gets called from contexts where it cannot sleep */