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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Alexander Usyskin <alexander.usyskin@intel.com>,
        Tomas Winkler <tomas.winkler@intel.com>
Subject: [PATCH 5.0 008/238] mei: hbm: clean the feature flags on link reset
Date:   Fri, 22 Mar 2019 12:13:47 +0100
Message-Id: <20190322111258.773969846@linuxfoundation.org>
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5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Usyskin <alexander.usyskin@intel.com>

commit 37fd0b623023484ef6df79ed46f21f06ecc611ff upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/misc/mei/hbm.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -1029,29 +1029,36 @@ static void mei_hbm_config_features(stru
 	    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))