mei: remove write only wariable wd_due_counter

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

drivers/misc/mei/init.c

@@ -306,7 +306,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 				dev->iamthif_cl.host_client_id);
 
 		mei_reset_iamthif_params(dev);
-		dev->wd_due_counter = 0;
 		dev->extra_write_index = 0;
 	}
 

drivers/misc/mei/interrupt.c

@@ -575,10 +575,9 @@ static void mei_client_disconnect_request(struct mei_device *dev,
 					disconnect_req->me_addr);
 			cl_pos->state = MEI_FILE_DISCONNECTED;
 			cl_pos->timer_count = 0;
-			if (cl_pos == &dev->wd_cl) {
-				dev->wd_due_counter = 0;
+			if (cl_pos == &dev->wd_cl)
 				dev->wd_pending = false;
-			} else if (cl_pos == &dev->iamthif_cl)
+			else if (cl_pos == &dev->iamthif_cl)
 				dev->iamthif_timer = 0;
 
 			/* prepare disconnect response */
@@ -1266,15 +1265,12 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 
 			dev->wd_pending = false;
 
-			if (dev->wd_timeout) {
+			if (dev->wd_timeout)
 				*slots -= (sizeof(struct mei_msg_hdr) +
 					 MEI_START_WD_DATA_SIZE + 3) / 4;
-				dev->wd_due_counter = 2;
-			} else {
+			else
 				*slots -= (sizeof(struct mei_msg_hdr) +
 					 MEI_WD_PARAMS_SIZE + 3) / 4;
-				dev->wd_due_counter = 0;
-			}
 
 		}
 	}

drivers/misc/mei/mei_dev.h

@@ -246,7 +246,6 @@ struct mei_device {
 	bool wd_stopped;
 	bool wd_bypass;	/* if false, don't refresh watchdog ME client */
 	u16 wd_timeout;	/* seconds ((wd_data[1] << 8) + wd_data[0]) */
-	u16 wd_due_counter;
 	unsigned char wd_data[MEI_START_WD_DATA_SIZE];
 
 

drivers/misc/mei/wd.c

@@ -137,7 +137,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
 		return 0;
 
 	dev->wd_timeout = 0;
-	dev->wd_due_counter = 0;
 	memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE);
 	dev->stop = true;
 
@@ -357,8 +356,6 @@ void  mei_watchdog_register(struct mei_device *dev)
 {
 	dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout);
 
-	dev->wd_due_counter = !!dev->wd_timeout;
-
 	if (watchdog_register_device(&amt_wd_dev)) {
 		dev_err(&dev->pdev->dev,
 			"wd: unable to register watchdog device.\n");