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USB: gadget: pxa25x: Re-use DEFINE_SHOW_ATTRIBUTE() macro 

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

Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2018-02-14 18:08:22 +02:00 committed by Felipe Balbi
parent 688d4ca317
commit 5aaa036b18
1 changed files with 3 additions and 17 deletions
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20
drivers/usb/gadget/udc/pxa25x_udc.c
View File

@ -1233,8 +1233,7 @@ static const struct usb_gadget_ops pxa25x_udc_ops = {
#ifdef CONFIG_USB_GADGET_DEBUG_FS
static int
udc_seq_show(struct seq_file *m, void *_d)
static int udc_debug_show(struct seq_file *m, void *_d)
{
struct pxa25x_udc *dev = m->private;
unsigned long flags;
@ -1335,25 +1334,12 @@ udc_seq_show(struct seq_file *m, void *_d)
local_irq_restore(flags);
return 0;
}
static int
udc_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, udc_seq_show, inode->i_private);
}
static const struct file_operations debug_fops = {
.open = udc_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
DEFINE_SHOW_ATTRIBUTE(udc_debug);
#define create_debug_files(dev) \
do { \
dev->debugfs_udc = debugfs_create_file(dev->gadget.name, \
S_IRUGO, NULL, dev, &debug_fops); \
S_IRUGO, NULL, dev, &udc_debug_fops); \
} while (0)
#define remove_debug_files(dev) debugfs_remove(dev->debugfs_udc)