ixgbe: convert to use simple_open()

This removes an open coded simple_open() function and
replaces file operations references to the function
with simple_open() instead.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
index 8d3a218..efaf9a7 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
@@ -37,20 +37,6 @@
 static char ixgbe_dbg_reg_ops_buf[256] = "";
 
 /**
- * ixgbe_dbg_reg_ops_open - prep the debugfs pokee data item when opened
- * @inode: inode that was opened
- * @filp:  file info
- *
- * Stash the adapter pointer hiding in the inode into the file pointer where
- * we can find it later in the read and write calls
- **/
-static int ixgbe_dbg_reg_ops_open(struct inode *inode, struct file *filp)
-{
-	filp->private_data = inode->i_private;
-	return 0;
-}
-
-/**
  * ixgbe_dbg_reg_ops_read - read for reg_ops datum
  * @filp: the opened file
  * @buffer: where to write the data for the user to read
@@ -142,7 +128,7 @@
 
 static const struct file_operations ixgbe_dbg_reg_ops_fops = {
 	.owner = THIS_MODULE,
-	.open =  ixgbe_dbg_reg_ops_open,
+	.open = simple_open,
 	.read =  ixgbe_dbg_reg_ops_read,
 	.write = ixgbe_dbg_reg_ops_write,
 };
@@ -150,20 +136,6 @@
 static char ixgbe_dbg_netdev_ops_buf[256] = "";
 
 /**
- * ixgbe_dbg_netdev_ops_open - prep the debugfs netdev_ops data item
- * @inode: inode that was opened
- * @filp: file info
- *
- * Stash the adapter pointer hiding in the inode into the file pointer
- * where we can find it later in the read and write calls
- **/
-static int ixgbe_dbg_netdev_ops_open(struct inode *inode, struct file *filp)
-{
-	filp->private_data = inode->i_private;
-	return 0;
-}
-
-/**
  * ixgbe_dbg_netdev_ops_read - read for netdev_ops datum
  * @filp: the opened file
  * @buffer: where to write the data for the user to read
@@ -238,7 +210,7 @@
 
 static const struct file_operations ixgbe_dbg_netdev_ops_fops = {
 	.owner = THIS_MODULE,
-	.open = ixgbe_dbg_netdev_ops_open,
+	.open = simple_open,
 	.read = ixgbe_dbg_netdev_ops_read,
 	.write = ixgbe_dbg_netdev_ops_write,
 };