queue-4.19/mei-hbm-clean-the-feature-flags-on-link-reset.patch

   1 From 37fd0b623023484ef6df79ed46f21f06ecc611ff Mon Sep 17 00:00:00 2001
   2 From: Alexander Usyskin <alexander.usyskin@intel.com>
   3 Date: Wed, 20 Feb 2019 16:55:37 +0200
   4 Subject: mei: hbm: clean the feature flags on link reset
   5
   6 From: Alexander Usyskin <alexander.usyskin@intel.com>
   7
   8 commit 37fd0b623023484ef6df79ed46f21f06ecc611ff upstream.
   9
  10 The list of supported functions can be altered upon link reset,
  11 clean the flags to allow correct selections of supported
  12 features.
  13
  14 Cc: <stable@vger.kernel.org> v4.19+
  15 Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
  16 Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  18
  19 ---
  20  drivers/misc/mei/hbm.c |    7 +++++++
  21  1 file changed, 7 insertions(+)
  22
  23 --- a/drivers/misc/mei/hbm.c
  24 +++ b/drivers/misc/mei/hbm.c
  25 @@ -986,29 +986,36 @@ static void mei_hbm_config_features(stru
  26             dev->version.minor_version >= HBM_MINOR_VERSION_PGI)
  27                 dev->hbm_f_pg_supported = 1;
  28
  29 +       dev->hbm_f_dc_supported = 0;
  30         if (dev->version.major_version >= HBM_MAJOR_VERSION_DC)
  31                 dev->hbm_f_dc_supported = 1;
  32
  33 +       dev->hbm_f_ie_supported = 0;
  34         if (dev->version.major_version >= HBM_MAJOR_VERSION_IE)
  35                 dev->hbm_f_ie_supported = 1;
  36
  37         /* disconnect on connect timeout instead of link reset */
  38 +       dev->hbm_f_dot_supported = 0;
  39         if (dev->version.major_version >= HBM_MAJOR_VERSION_DOT)
  40                 dev->hbm_f_dot_supported = 1;
  41
  42         /* Notification Event Support */
  43 +       dev->hbm_f_ev_supported = 0;
  44         if (dev->version.major_version >= HBM_MAJOR_VERSION_EV)
  45                 dev->hbm_f_ev_supported = 1;
  46
  47         /* Fixed Address Client Support */
  48 +       dev->hbm_f_fa_supported = 0;
  49         if (dev->version.major_version >= HBM_MAJOR_VERSION_FA)
  50                 dev->hbm_f_fa_supported = 1;
  51
  52         /* OS ver message Support */
  53 +       dev->hbm_f_os_supported = 0;
  54         if (dev->version.major_version >= HBM_MAJOR_VERSION_OS)
  55                 dev->hbm_f_os_supported = 1;
  56
  57         /* DMA Ring Support */
  58 +       dev->hbm_f_dr_supported = 0;
  59         if (dev->version.major_version > HBM_MAJOR_VERSION_DR ||
  60             (dev->version.major_version == HBM_MAJOR_VERSION_DR &&
  61              dev->version.minor_version >= HBM_MINOR_VERSION_DR))