mei: get rid of ext_msg

Use more standard message writing for
oob data.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 40 insertions, 7 deletions

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 3f0b0b9ce951..75ff4092953e 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -161,6 +161,41 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 }
 
 /**
+ * mei_cl_irq_disconnect_rsp - send disconnection response message
+ *
+ * @cl: client
+ * @cb: callback block.
+ * @slots: free slots.
+ * @cmpl_list: complete list.
+ *
+ * returns 0, OK; otherwise, error.
+ */
+static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb,
+                        s32 *slots, struct mei_cl_cb *cmpl_list)
+{
+        struct mei_device *dev = cl->dev;
+        int ret;
+
+        u32 msg_slots =
+                mei_data2slots(sizeof(struct hbm_client_connect_response));
+
+        if (*slots < msg_slots)
+                return -EMSGSIZE;
+
+        *slots -= msg_slots;
+
+        ret = mei_hbm_cl_disconnect_rsp(dev, cl);
+
+        cl->state = MEI_FILE_DISCONNECTED;
+        cl->status = 0;
+        mei_io_cb_free(cb);
+
+        return ret;
+}
+
+
+
+/**
  * mei_cl_irq_close - processes close related operation from
  *      interrupt thread context - send disconnect request
  *
@@ -452,12 +487,6 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
                 wake_up_interruptible(&dev->wait_stop_wd);
         }
 
-        if (dev->wr_ext_msg.hdr.length) {
-                mei_write_message(dev, &dev->wr_ext_msg.hdr,
-                                dev->wr_ext_msg.data);
-                slots -= mei_data2slots(dev->wr_ext_msg.hdr.length);
-                dev->wr_ext_msg.hdr.length = 0;
-        }
         if (dev->dev_state == MEI_DEV_ENABLED) {
                 if (dev->wd_pending &&
                     mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
@@ -505,7 +534,11 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
                                 return ret;
 
                         break;
-
+                case MEI_FOP_DISCONNECT_RSP:
+                        /* send disconnect resp */
+                        ret = mei_cl_irq_disconnect_rsp(cl, cb, &slots, cmpl_list);
+                        if (ret)
+                                return ret;
                 default:
                         BUG();
                 }