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xhci: Fix incorrect EP_STATE_MASK

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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>
This commit is contained in:
Mathias Nyman 2020-06-24 16:59:45 +03:00 • committed by Sasha Levin
parent d2621f1579
commit d7ed5fc0c1
1 changed files with 1 additions and 1 deletions

2
drivers/usb/host/xhci.h
View file

@ -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