xhci: Fix incorrect EP_STATE_MASK

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@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200624135949.22611-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 2b603ef5c10cd4464b6f17d2ecf75f78319c5ec6..2b8df83dad38d97aed2887829d837ecdba1b36b4 100644 (file)
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -709,7 +709,7 @@ 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