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block: aoe: use DEFINE_SHOW_ATTRIBUTE to simplify aoe_debugfs 

Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Link: https://lore.kernel.org/r/20220915023424.3198940-1-liushixin2@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Liu Shixin 2022-09-15 10:34:24 +08:00 committed by Jens Axboe
parent e55e1b4831
commit 8ef859995d
1 changed files with 2 additions and 13 deletions
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15
drivers/block/aoe/aoeblk.c
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@ -108,7 +108,7 @@ static ssize_t aoedisk_show_payload(struct device *dev,
return sysfs_emit(page, "%lu\n", d->maxbcnt); return sysfs_emit(page, "%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 aoedev *d;
struct aoetgt **t, **te; struct aoetgt **t, **te;
@ -151,11 +151,7 @@ static int aoedisk_debugfs_show(struct seq_file *s, void *ignored)
return 0; return 0;
} }
DEFINE_SHOW_ATTRIBUTE(aoe_debugfs);
static int aoe_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, aoedisk_debugfs_show, inode->i_private);
}
static DEVICE_ATTR(state, 0444, aoedisk_show_state, NULL); static DEVICE_ATTR(state, 0444, aoedisk_show_state, NULL);
static DEVICE_ATTR(mac, 0444, aoedisk_show_mac, NULL); static DEVICE_ATTR(mac, 0444, aoedisk_show_mac, NULL);
@ -184,13 +180,6 @@ static const struct attribute_group *aoe_attr_groups[] = {
NULL, NULL,
}; };
static const struct file_operations aoe_debugfs_fops = {
.open = aoe_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void static void
aoedisk_add_debugfs(struct aoedev *d) aoedisk_add_debugfs(struct aoedev *d)
{ {