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seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro

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The DEFINE_SHOW_ATTRIBUTE() helper macro would be useful for current
users, which are many of them, and for new comers to decrease code
duplication.

Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2018-01-22 18:05:43 +02:00
parent a2e5790d84
commit a08f06bb7a
4 changed files with 14 additions and 41 deletions
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13
net/bluetooth/hci_debugfs.c
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@ -90,19 +90,6 @@ static int __name ## _show(struct seq_file *f, void *ptr) \
\
DEFINE_SHOW_ATTRIBUTE(__name)
#define DEFINE_SHOW_ATTRIBUTE(__name) \
static int __name ## _open(struct inode *inode, struct file *file) \
{ \
return single_open(file, __name ## _show, inode->i_private); \
} \
\
static const struct file_operations __name ## _fops = { \
.open = __name ## _open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
} \
static int features_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;