[PATCH -next] pwm: convert to use DEFINE_SEQ_ATTRIBUTE macro

Liu Shixin
2020-09-16T02:28:49Z

Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
---
drivers/pwm/core.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 276e939a5684..1f16f5365d3c 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -1327,30 +1327,19 @@ static int pwm_seq_show(struct seq_file *s, void *v)
return 0;
}

-static const struct seq_operations pwm_seq_ops = {
+static const struct seq_operations pwm_debugfs_sops = {
.start = pwm_seq_start,
.next = pwm_seq_next,
.stop = pwm_seq_stop,
.show = pwm_seq_show,
};

-static int pwm_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &pwm_seq_ops);
-}
-
-static const struct file_operations pwm_debugfs_ops = {
- .owner = THIS_MODULE,
- .open = pwm_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(pwm_debugfs);

static int __init pwm_debugfs_init(void)
{
debugfs_create_file("pwm", S_IFREG | S_IRUGO, NULL, NULL,
- &pwm_debugfs_ops);
+ &pwm_debugfs_fops);

return 0;
}
--
2.25.1