mei: kill usless struct mei_io_list

kill useless mei_io_list list wrapper and use directly
struct mei_cl_cb mei_cb which was its only member for managing io queues
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/init.c

@@ -47,35 +47,23 @@ const uuid_le mei_amthi_guid  = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, 0xac,
 						0xa8, 0x46, 0xe0, 0xff, 0x65,
 						0x81, 0x4c);
 
-/**
- * mei_io_list_init - Sets up a queue list.
- *
- * @list: An instance io list structure
- * @dev: the device structure
- */
-void mei_io_list_init(struct mei_io_list *list)
-{
-	/* initialize our queue list */
-	INIT_LIST_HEAD(&list->mei_cb.cb_list);
-}
-
 /**
  * mei_io_list_flush - removes list entry belonging to cl.
  *
  * @list:  An instance of our list structure
  * @cl: private data of the file object
  */
-void mei_io_list_flush(struct mei_io_list *list, struct mei_cl *cl)
+void mei_io_list_flush(struct mei_cl_cb *list, struct mei_cl *cl)
 {
 	struct mei_cl_cb *pos;
 	struct mei_cl_cb *next;
 
-	list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) {
+	list_for_each_entry_safe(pos, next, &list->list, list) {
 		if (pos->file_private) {
 			struct mei_cl *cl_tmp;
 			cl_tmp = (struct mei_cl *)pos->file_private;
 			if (mei_cl_cmp_id(cl, cl_tmp))
-				list_del(&pos->cb_list);
+				list_del(&pos->list);
 		}
 	}
 }
@@ -351,9 +339,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 		}
 	}
 	/* remove all waiting requests */
-	list_for_each_entry_safe(cb_pos, cb_next,
-			&dev->write_list.mei_cb.cb_list, cb_list) {
-		list_del(&cb_pos->cb_list);
+	list_for_each_entry_safe(cb_pos, cb_next, &dev->write_list.list, list) {
+		list_del(&cb_pos->list);
 		mei_free_cb_private(cb_pos);
 	}
 }
@@ -685,7 +672,7 @@ int mei_disconnect_host_client(struct mei_device *dev, struct mei_cl *cl)
 	if (!cb)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&cb->cb_list);
+	mei_io_list_init(cb);
 	cb->file_private = cl;
 	cb->major_file_operations = MEI_CLOSE;
 	if (dev->mei_host_buffer_is_empty) {
@@ -696,11 +683,11 @@ int mei_disconnect_host_client(struct mei_device *dev, struct mei_cl *cl)
 			goto free;
 		}
 		mdelay(10); /* Wait for hardware disconnection ready */
-		list_add_tail(&cb->cb_list, &dev->ctrl_rd_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
 	} else {
 		dev_dbg(&dev->pdev->dev, "add disconnect cb to control write list\n");
-		list_add_tail(&cb->cb_list,
-				&dev->ctrl_wr_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
+
 	}
 	mutex_unlock(&dev->device_lock);
 

drivers/misc/mei/iorw.c

@@ -104,7 +104,7 @@ int mei_ioctl_connect_client(struct file *file,
 		rets = -ENOMEM;
 		goto end;
 	}
-	INIT_LIST_HEAD(&cb->cb_list);
+	mei_io_list_init(cb);
 
 	cb->major_file_operations = MEI_IOCTL;
 
@@ -193,9 +193,7 @@ int mei_ioctl_connect_client(struct file *file,
 			dev_dbg(&dev->pdev->dev, "Sending connect message - succeeded\n");
 			cl->timer_count = MEI_CONNECT_TIMEOUT;
 			cb->file_private = cl;
-			list_add_tail(&cb->cb_list,
-				      &dev->ctrl_rd_list.mei_cb.
-				      cb_list);
+			list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
 		}
 
 
@@ -203,8 +201,7 @@ int mei_ioctl_connect_client(struct file *file,
 		dev_dbg(&dev->pdev->dev, "Queuing the connect request due to device busy\n");
 		cb->file_private = cl;
 		dev_dbg(&dev->pdev->dev, "add connect cb to control write list.\n");
-		list_add_tail(&cb->cb_list,
-			      &dev->ctrl_wr_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 	}
 	mutex_unlock(&dev->device_lock);
 	err = wait_event_timeout(dev->wait_recvd_msg,
@@ -255,7 +252,7 @@ struct mei_cl_cb *find_amthi_read_list_entry(
 	struct mei_cl_cb *next = NULL;
 
 	list_for_each_entry_safe(pos, next,
-	    &dev->amthi_read_complete_list.mei_cb.cb_list, cb_list) {
+	    &dev->amthi_read_complete_list.list, list) {
 		cl_temp = (struct mei_cl *)pos->file_private;
 		if (cl_temp && cl_temp == &dev->iamthif_cl &&
 			pos->file_object == file)
@@ -340,17 +337,17 @@ int amthi_read(struct mei_device *dev, struct file *file,
 		if  (time_after(jiffies, timeout)) {
 			dev_dbg(&dev->pdev->dev, "amthi Time out\n");
 			/* 15 sec for the message has expired */
-			list_del(&cb->cb_list);
+			list_del(&cb->list);
 			rets = -ETIMEDOUT;
 			goto free;
 		}
 	}
 	/* if the whole message will fit remove it from the list */
 	if (cb->buf_idx >= *offset && length >= (cb->buf_idx - *offset))
-		list_del(&cb->cb_list);
+		list_del(&cb->list);
 	else if (cb->buf_idx > 0 && cb->buf_idx <= *offset) {
 		/* end of the message has been reached */
-		list_del(&cb->cb_list);
+		list_del(&cb->list);
 		rets = 0;
 		goto free;
 	}
@@ -441,9 +438,9 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
 			rets = -ENODEV;
 			goto unlock;
 		}
-		list_add_tail(&cb->cb_list, &dev->read_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->read_list.list);
 	} else {
-		list_add_tail(&cb->cb_list, &dev->ctrl_wr_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 	}
 	return rets;
 unlock:
@@ -510,13 +507,11 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 			dev_dbg(&dev->pdev->dev, "add amthi cb to write waiting list\n");
 			dev->iamthif_current_cb = cb;
 			dev->iamthif_file_object = cb->file_object;
-			list_add_tail(&cb->cb_list,
-				      &dev->write_waiting_list.mei_cb.cb_list);
+			list_add_tail(&cb->list, &dev->write_waiting_list.list);
 		} else {
 			dev_dbg(&dev->pdev->dev, "message does not complete, "
 					"so add amthi cb to write list.\n");
-			list_add_tail(&cb->cb_list,
-				      &dev->write_list.mei_cb.cb_list);
+			list_add_tail(&cb->list, &dev->write_list.list);
 		}
 	} else {
 		if (!(dev->mei_host_buffer_is_empty))
@@ -524,7 +519,7 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 
 		dev_dbg(&dev->pdev->dev, "No flow control credentials, "
 				"so add iamthif cb to write list.\n");
-		list_add_tail(&cb->cb_list, &dev->write_list.mei_cb.cb_list);
+		list_add_tail(&cb->list, &dev->write_list.list);
 	}
 	return 0;
 }
@@ -556,9 +551,8 @@ void mei_run_next_iamthif_cmd(struct mei_device *dev)
 
 	dev_dbg(&dev->pdev->dev, "complete amthi cmd_list cb.\n");
 
-	list_for_each_entry_safe(pos, next,
-			&dev->amthi_cmd_list.mei_cb.cb_list, cb_list) {
-		list_del(&pos->cb_list);
+	list_for_each_entry_safe(pos, next, &dev->amthi_cmd_list.list, list) {
+		list_del(&pos->list);
 		cl_tmp = (struct mei_cl *)pos->file_private;
 
 		if (cl_tmp && cl_tmp == &dev->iamthif_cl) {

drivers/misc/mei/main.c

@@ -111,12 +111,12 @@ static bool mei_clear_list(struct mei_device *dev,
 	bool removed = false;
 
 	/* list all list member */
-	list_for_each_entry_safe(cb_pos, cb_next, mei_cb_list, cb_list) {
+	list_for_each_entry_safe(cb_pos, cb_next, mei_cb_list, list) {
 		file_temp = (struct file *)cb_pos->file_object;
 		/* check if list member associated with a file */
 		if (file_temp == file) {
 			/* remove member from the list */
-			list_del(&cb_pos->cb_list);
+			list_del(&cb_pos->list);
 			/* check if cb equal to current iamthif cb */
 			if (dev->iamthif_current_cb == cb_pos) {
 				dev->iamthif_current_cb = NULL;
@@ -148,20 +148,20 @@ static bool mei_clear_lists(struct mei_device *dev, struct file *file)
 	bool removed = false;
 
 	/* remove callbacks associated with a file */
-	mei_clear_list(dev, file, &dev->amthi_cmd_list.mei_cb.cb_list);
+	mei_clear_list(dev, file, &dev->amthi_cmd_list.list);
 	if (mei_clear_list(dev, file,
-			    &dev->amthi_read_complete_list.mei_cb.cb_list))
+			    &dev->amthi_read_complete_list.list))
 		removed = true;
 
-	mei_clear_list(dev, file, &dev->ctrl_rd_list.mei_cb.cb_list);
+	mei_clear_list(dev, file, &dev->ctrl_rd_list.list);
 
-	if (mei_clear_list(dev, file, &dev->ctrl_wr_list.mei_cb.cb_list))
+	if (mei_clear_list(dev, file, &dev->ctrl_wr_list.list))
 		removed = true;
 
-	if (mei_clear_list(dev, file, &dev->write_waiting_list.mei_cb.cb_list))
+	if (mei_clear_list(dev, file, &dev->write_waiting_list.list))
 		removed = true;
 
-	if (mei_clear_list(dev, file, &dev->write_list.mei_cb.cb_list))
+	if (mei_clear_list(dev, file, &dev->write_list.list))
 		removed = true;
 
 	/* check if iamthif_current_cb not NULL */
@@ -192,8 +192,7 @@ static struct mei_cl_cb *find_read_list_entry(
 	struct mei_cl_cb *next = NULL;
 
 	dev_dbg(&dev->pdev->dev, "remove read_list CB\n");
-	list_for_each_entry_safe(pos, next,
-			&dev->read_list.mei_cb.cb_list, cb_list) {
+	list_for_each_entry_safe(pos, next, &dev->read_list.list, list) {
 		struct mei_cl *cl_temp;
 		cl_temp = (struct mei_cl *)pos->file_private;
 
@@ -324,7 +323,7 @@ static int mei_release(struct inode *inode, struct file *file)
 			cb = find_read_list_entry(dev, cl);
 			/* Remove entry from read list */
 			if (cb)
-				list_del(&cb->cb_list);
+				list_del(&cb->list);
 
 			cb = cl->read_cb;
 			cl->read_cb = NULL;
@@ -504,7 +503,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 	cb_pos = find_read_list_entry(dev, cl);
 	/* Remove entry from read list */
 	if (cb_pos)
-		list_del(&cb_pos->cb_list);
+		list_del(&cb_pos->list);
 	mei_free_cb_private(cb);
 	cl->reading_state = MEI_IDLE;
 	cl->read_cb = NULL;
@@ -534,7 +533,7 @@ static struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, struct file *fp)
 	if (!cb)
 		return NULL;
 
-	INIT_LIST_HEAD(&cb->cb_list);
+	mei_io_list_init(cb);
 
 	cb->file_object = fp;
 	cb->file_private = cl;
@@ -651,7 +650,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 			if (time_after(jiffies, timeout) ||
 			    cl->reading_state == MEI_READ_COMPLETE) {
 				*offset = 0;
-				list_del(&write_cb->cb_list);
+				list_del(&write_cb->list);
 				mei_free_cb_private(write_cb);
 				write_cb = NULL;
 			}
@@ -663,7 +662,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		*offset = 0;
 		write_cb = find_read_list_entry(dev, cl);
 		if (write_cb) {
-			list_del(&write_cb->cb_list);
+			list_del(&write_cb->list);
 			mei_free_cb_private(write_cb);
 			write_cb = NULL;
 			cl->reading_state = MEI_IDLE;
@@ -707,13 +706,12 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 
 		write_cb->major_file_operations = MEI_IOCTL;
 
-		if (!list_empty(&dev->amthi_cmd_list.mei_cb.cb_list) ||
+		if (!list_empty(&dev->amthi_cmd_list.list) ||
 				dev->iamthif_state != MEI_IAMTHIF_IDLE) {
 			dev_dbg(&dev->pdev->dev, "amthi_state = %d\n",
 					(int) dev->iamthif_state);
 			dev_dbg(&dev->pdev->dev, "add amthi cb to amthi cmd waiting list\n");
-			list_add_tail(&write_cb->cb_list,
-					&dev->amthi_cmd_list.mei_cb.cb_list);
+			list_add_tail(&write_cb->list, &dev->amthi_cmd_list.list);
 		} else {
 			dev_dbg(&dev->pdev->dev, "call amthi write\n");
 			rets = amthi_write(dev, write_cb);
@@ -764,19 +762,16 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 				rets = -ENODEV;
 				goto unlock_dev;
 			}
-			list_add_tail(&write_cb->cb_list,
-				      &dev->write_waiting_list.mei_cb.cb_list);
+			list_add_tail(&write_cb->list, &dev->write_waiting_list.list);
 		} else {
-			list_add_tail(&write_cb->cb_list,
-				      &dev->write_list.mei_cb.cb_list);
+			list_add_tail(&write_cb->list, &dev->write_list.list);
 		}
 
 	} else {
 
 		write_cb->buf_idx = 0;
 		cl->writing_state = MEI_WRITING;
-		list_add_tail(&write_cb->cb_list,
-			      &dev->write_list.mei_cb.cb_list);
+		list_add_tail(&write_cb->list, &dev->write_list.list);
 	}
 	mutex_unlock(&dev->device_lock);
 	return length;

drivers/misc/mei/mei_dev.h

@@ -144,7 +144,7 @@ struct mei_message_data {
 
 
 struct mei_cl_cb {
-	struct list_head cb_list;
+	struct list_head list;
 	enum mei_cb_major_types major_file_operations;
 	void *file_private;
 	struct mei_message_data request_buffer;
@@ -175,10 +175,6 @@ struct mei_cl {
 	struct mei_cl_cb *read_cb;
 };
 
-struct mei_io_list {
-	struct mei_cl_cb mei_cb;
-};
-
 /**
  * struct mei_deive -  MEI private device struct
  * @hbuf_depth - depth of host(write) buffer
@@ -189,15 +185,15 @@ struct mei_device {
 	 * lists of queues
 	 */
 	 /* array of pointers to aio lists */
-	struct mei_io_list read_list;		/* driver read queue */
-	struct mei_io_list write_list;		/* driver write queue */
-	struct mei_io_list write_waiting_list;	/* write waiting queue */
-	struct mei_io_list ctrl_wr_list;	/* managed write IOCTL list */
-	struct mei_io_list ctrl_rd_list;	/* managed read IOCTL list */
-	struct mei_io_list amthi_cmd_list;	/* amthi list for cmd waiting */
+	struct mei_cl_cb read_list;		/* driver read queue */
+	struct mei_cl_cb write_list;		/* driver write queue */
+	struct mei_cl_cb write_waiting_list;	/* write waiting queue */
+	struct mei_cl_cb ctrl_wr_list;		/* managed write IOCTL list */
+	struct mei_cl_cb ctrl_rd_list;		/* managed read IOCTL list */
+	struct mei_cl_cb amthi_cmd_list;	/* amthi list for cmd waiting */
 
 	/* driver managed amthi list for reading completed amthi cmd data */
-	struct mei_io_list amthi_read_complete_list;
+	struct mei_cl_cb amthi_read_complete_list;
 	/*
 	 * list of files
 	 */
@@ -297,8 +293,16 @@ int mei_me_cl_by_id(struct mei_device *dev, u8 client_id);
 /*
  * MEI IO List Functions
  */
-void mei_io_list_init(struct mei_io_list *list);
-void mei_io_list_flush(struct mei_io_list *list, struct mei_cl *cl);
+/**
+ * mei_io_list_init - Sets up a queue list.
+ *
+ * @list: An instance cl callback structure
+ */
+static inline void mei_io_list_init(struct mei_cl_cb *list)
+{
+	INIT_LIST_HEAD(&list->list);
+}
+void mei_io_list_flush(struct mei_cl_cb *list, struct mei_cl *cl);
 
 /*
  * MEI ME Client Functions