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Subject[char-misc] mei: hbm: clean the feature flags on link reset
Date
From: Alexander Usyskin <alexander.usyskin@intel.com>

The list of supported functions can be altered upon link reset,
clean the flags to allow correct selections of supported
features.

Cc: <stable@vger.kernel.org> v4.19+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/hbm.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 8f7616557c97..e6207f614816 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -1029,29 +1029,36 @@ static void mei_hbm_config_features(struct mei_device *dev)
dev->version.minor_version >= HBM_MINOR_VERSION_PGI)
dev->hbm_f_pg_supported = 1;

+ dev->hbm_f_dc_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_DC)
dev->hbm_f_dc_supported = 1;

+ dev->hbm_f_ie_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_IE)
dev->hbm_f_ie_supported = 1;

/* disconnect on connect timeout instead of link reset */
+ dev->hbm_f_dot_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_DOT)
dev->hbm_f_dot_supported = 1;

/* Notification Event Support */
+ dev->hbm_f_ev_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_EV)
dev->hbm_f_ev_supported = 1;

/* Fixed Address Client Support */
+ dev->hbm_f_fa_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_FA)
dev->hbm_f_fa_supported = 1;

/* OS ver message Support */
+ dev->hbm_f_os_supported = 0;
if (dev->version.major_version >= HBM_MAJOR_VERSION_OS)
dev->hbm_f_os_supported = 1;

/* DMA Ring Support */
+ dev->hbm_f_dr_supported = 0;
if (dev->version.major_version > HBM_MAJOR_VERSION_DR ||
(dev->version.major_version == HBM_MAJOR_VERSION_DR &&
dev->version.minor_version >= HBM_MINOR_VERSION_DR))
--
2.20.1
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