x86/platform/atom: Re-use DEFINE_SHOW_ATTRIBUTE() macro

...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

While here, replace permissions by explicit octal value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180214154317.52290-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Shevchenko 2018-02-14 17:43:16 +02:00 committed by Ingo Molnar
parent e525de3ab0
commit 3130451e27

View file

@ -109,18 +109,7 @@ static int punit_dev_state_show(struct seq_file *seq_file, void *unused)
return 0;
}
static int punit_dev_state_open(struct inode *inode, struct file *file)
{
return single_open(file, punit_dev_state_show, inode->i_private);
}
static const struct file_operations punit_dev_state_ops = {
.open = punit_dev_state_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(punit_dev_state);
static struct dentry *punit_dbg_file;
@ -132,9 +121,9 @@ static int punit_dbgfs_register(struct punit_device *punit_device)
if (!punit_dbg_file)
return -ENXIO;
dev_state = debugfs_create_file("dev_power_state", S_IFREG | S_IRUGO,
dev_state = debugfs_create_file("dev_power_state", 0444,
punit_dbg_file, punit_device,
&punit_dev_state_ops);
&punit_dev_state_fops);
if (!dev_state) {
pr_err("punit_dev_state register failed\n");
debugfs_remove(punit_dbg_file);