This is a note to let you know that I've just added the patch titled xhci: Fix incorrect EP_STATE_MASK to the 5.4-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-5.4 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-5.4/xhci-fix-incorrect-ep_state_mask.patch queue-5.4/xhci-fix-enumeration-issue-when-setting-max-packet-size-for-fs-devices.patch queue-5.4/xhci-return-if-xhci-doesn-t-support-lpm.patch queue-5.4/usb-host-xhci-mtk-avoid-runtime-suspend-when-removing-hcd.patch queue-5.4/xhci-poll-for-u0-after-disabling-usb2-lpm.patch