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simple_open: automatically convert to simple_open()

Browse source 
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>

[[email protected]: checkpatch fixes]
Signed-off-by: Stephen Boyd <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Julia Lawall <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Stephen Boyd 2012-04-05 14:25:11 -07:00 • committed by Linus Torvalds
commit 234e340582
63 changed files with 176 additions and 572 deletions
Download patch file Download diff file Expand all files Collapse all files

9
drivers/tty/serial/mfd.c
View file

@ -127,11 +127,6 @@ static inline void serial_out(struct uart_hsu_port *up, int offset, int value)
#define HSU_REGS_BUFSIZE 1024
static int hsu_show_regs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t port_show_regs(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
@ -231,14 +226,14 @@ static ssize_t dma_show_regs(struct file *file, char __user *user_buf,
static const struct file_operations port_regs_ops = {
.owner = THIS_MODULE,
.open = hsu_show_regs_open,
.open = simple_open,
.read = port_show_regs,
.llseek = default_llseek,
};
static const struct file_operations dma_regs_ops = {
.owner = THIS_MODULE,
.open = hsu_show_regs_open,
.open = simple_open,
.read = dma_show_regs,
.llseek = default_llseek,
};

8
drivers/tty/serial/pch_uart.c
View file

@ -304,11 +304,7 @@ static const int trigger_level_1[4] = { 1, 1, 1, 1 };
#ifdef CONFIG_DEBUG_FS
#define PCH_REGS_BUFSIZE 1024
static int pch_show_regs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t port_show_regs(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
@ -362,7 +358,7 @@ static ssize_t port_show_regs(struct file *file, char __user *user_buf,
static const struct file_operations port_regs_ops = {
.owner = THIS_MODULE,
.open = pch_show_regs_open,
.open = simple_open,
.read = port_show_regs,
.llseek = default_llseek,
};