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staging: greybus: convert to DEFINE_SHOW_ATTRIBUTE 

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yangtao Li 2018-12-15 03:53:12 -05:00 committed by Greg Kroah-Hartman
parent 892cb81ece
commit 0022290f1e
1 changed files with 2 additions and 14 deletions
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16
drivers/staging/greybus/loopback.c
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@ -970,19 +970,7 @@ 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);
#define DEBUGFS_NAMELEN 32
@ -1042,7 +1030,7 @@ 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) {