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char: virtio: Change to use DEFINE_SHOW_ATTRIBUTE macro

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Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yangtao Li 2018-11-30 21:41:28 -05:00 committed by Greg Kroah-Hartman
parent c13e0a5288
commit ddfa728ad1
1 changed files with 3 additions and 14 deletions
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17
drivers/char/virtio_console.c
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@ -1309,7 +1309,7 @@ static const struct attribute_group port_attribute_group = {
.attrs = port_sysfs_entries, .attrs = port_sysfs_entries,
}; };
static int debugfs_show(struct seq_file *s, void *data) static int port_debugfs_show(struct seq_file *s, void *data)
{ {
struct port *port = s->private; struct port *port = s->private;
@ -1327,18 +1327,7 @@ static int debugfs_show(struct seq_file *s, void *data)
return 0; return 0;
} }
static int debugfs_open(struct inode *inode, struct file *file) DEFINE_SHOW_ATTRIBUTE(port_debugfs);
{
return single_open(file, debugfs_show, inode->i_private);
}
static const struct file_operations port_debugfs_ops = {
.owner = THIS_MODULE,
.open = debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void set_console_size(struct port *port, u16 rows, u16 cols) static void set_console_size(struct port *port, u16 rows, u16 cols)
{ {
@ -1490,7 +1479,7 @@ static int add_port(struct ports_device *portdev, u32 id)
port->debugfs_file = debugfs_create_file(debugfs_name, 0444, port->debugfs_file = debugfs_create_file(debugfs_name, 0444,
pdrvdata.debugfs_dir, pdrvdata.debugfs_dir,
port, port,
&port_debugfs_ops); &port_debugfs_fops);
} }
return 0; return 0;