[-next] aoe: Convert to DEFINE_SHOW_ATTRIBUTE

Commit Message

Qinglang Miao July 16, 2020, 9:06 a.m. UTC

From: Liu Shixin <[e-mail]>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <[e-mail]>
---
 drivers/block/aoe/aoeblk.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

Patch

diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 57905a495..3502a8325 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -110,7 +110,7 @@  static ssize_t aoedisk_show_payload(struct device *dev,
 	return snprintf(page, PAGE_SIZE, "%lu\n", d->maxbcnt);
 }
 
-static int aoedisk_debugfs_show(struct seq_file *s, void *ignored)
+static int aoe_debugfs_show(struct seq_file *s, void *ignored)
 {
 	struct aoedev *d;
 	struct aoetgt **t, **te;
@@ -154,10 +154,7 @@  static int aoedisk_debugfs_show(struct seq_file *s, void *ignored)
 	return 0;
 }
 
-static int aoe_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, aoedisk_debugfs_show, inode->i_private);
-}
+DEFINE_SHOW_ATTRIBUTE(aoe_debugfs);
 
 static DEVICE_ATTR(state, 0444, aoedisk_show_state, NULL);
 static DEVICE_ATTR(mac, 0444, aoedisk_show_mac, NULL);
@@ -186,13 +183,6 @@  static const struct attribute_group *aoe_attr_groups[] = {
 	NULL,
 };
 
-static const struct file_operations aoe_debugfs_fops = {
-	.open = aoe_debugfs_open,
-	.read_iter = seq_read_iter,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
 static void
 aoedisk_add_debugfs(struct aoedev *d)
 {