This is a note to let you know that I've just added the patch titled
xhci: Fix incorrect EP_STATE_MASK
to the 5.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xhci-fix-incorrect-ep_state_mask.patch
and it can be found in the queue-5.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dceea67058fe22075db3aed62d5cb62092be5053 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Date: Wed, 24 Jun 2020 16:59:45 +0300
Subject: xhci: Fix incorrect EP_STATE_MASK
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
commit dceea67058fe22075db3aed62d5cb62092be5053 upstream.
EP_STATE_MASK should be 0x7 instead of 0xf
xhci spec 6.2.3 shows that the EP state field in the endpoint context data
structure consist of bits [2:0].
The old value included a bit from the next field which fortunately is a
RsvdZ region. So hopefully this hasn't caused too much harm
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200624135949.22611-2-mathias.nyman@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -716,7 +716,7 @@ struct xhci_ep_ctx {
* 4 - TRB error
* 5-7 - reserved
*/
-#define EP_STATE_MASK (0xf)
+#define EP_STATE_MASK (0x7)
#define EP_STATE_DISABLED 0
#define EP_STATE_RUNNING 1
#define EP_STATE_HALTED 2
Patches currently in stable-queue which might be from mathias.nyman@xxxxxxxxxxxxxxx are
queue-5.7/xhci-fix-incorrect-ep_state_mask.patch
queue-5.7/xhci-fix-enumeration-issue-when-setting-max-packet-size-for-fs-devices.patch
queue-5.7/xhci-return-if-xhci-doesn-t-support-lpm.patch
queue-5.7/usb-host-xhci-mtk-avoid-runtime-suspend-when-removing-hcd.patch
queue-5.7/xhci-poll-for-u0-after-disabling-usb2-lpm.patch
