Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li tiny.windzz@gmail.com --- drivers/staging/greybus/loopback.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 7080294f705c..33cda7527714 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -973,19 +973,7 @@ static int gb_loopback_dbgfs_latency_show(struct seq_file *s, void *unused) return gb_loopback_dbgfs_latency_show_common(s, &gb->kfifo_lat, &gb->mutex); } - -static int gb_loopback_latency_open(struct inode *inode, struct file *file) -{ - return single_open(file, gb_loopback_dbgfs_latency_show, - inode->i_private); -} - -static const struct file_operations gb_loopback_debugfs_latency_ops = { - .open = gb_loopback_latency_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(gb_loopback_dbgfs_latency);

static int gb_loopback_bus_id_compare(void *priv, struct list_head *lha, struct list_head *lhb) @@ -1076,7 +1064,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, snprintf(name, sizeof(name), "raw_latency_%s", dev_name(&connection->bundle->dev)); gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb, - &gb_loopback_debugfs_latency_ops); + &gb_loopback_dbgfs_latency_fops);

gb->id = ida_simple_get(&loopback_ida, 0, 0, GFP_KERNEL); if (gb->id < 0) {