simple_open: automatically convert to simple_open()

Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op.  This leads to a
proliferation of the default_open() implementation across the entire
tree.

Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().

This replacement was done with the following semantic patch:

<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}

@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 8 deletions

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 22e17be04d8..34f7cf76bf4 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -997,13 +997,6 @@ lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
         return nbytes;
 }
 
-static int
-lpfc_debugfs_dif_err_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t
 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
         size_t nbytes, loff_t *ppos)
@@ -3521,7 +3514,7 @@ static const struct file_operations lpfc_debugfs_op_dumpDif = {
 #undef lpfc_debugfs_op_dif_err
 static const struct file_operations lpfc_debugfs_op_dif_err = {
         .owner =        THIS_MODULE,
-        .open =         lpfc_debugfs_dif_err_open,
+        .open =         simple_open,
         .llseek =       lpfc_debugfs_lseek,
         .read =         lpfc_debugfs_dif_err_read,
         .write =        lpfc_debugfs_dif_err_write,