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Message-ID: <20200716090601.13945-1-miaoqinglang@huawei.com>
Date: Thu, 16 Jul 2020 17:06:01 +0800
From: Qinglang Miao <miaoqinglang@...wei.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jens Axboe <axboe@...nel.dk>
CC: <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] pktcdvd: Convert to DEFINE_SHOW_ATTRIBUTE
From: Liu Shixin <liushixin2@...wei.com>
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
drivers/block/pktcdvd.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index c81f63714..6a79770db 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -452,23 +452,12 @@ static void pkt_sysfs_cleanup(void)
*******************************************************************/
-static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
+static int pkt_debugfs_show(struct seq_file *m, void *p)
{
return pkt_seq_show(m, p);
}
-static int pkt_debugfs_fops_open(struct inode *inode, struct file *file)
-{
- return single_open(file, pkt_debugfs_seq_show, inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
- .open = pkt_debugfs_fops_open,
- .read_iter = seq_read_iter,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(pkt_debugfs);
static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
{
@@ -479,7 +468,7 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
return;
pd->dfs_f_info = debugfs_create_file("info", 0444,
- pd->dfs_d_root, pd, &debug_fops);
+ pd->dfs_d_root, pd, &pkt_debugfs_fops);
}
static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd)
--
2.17.1
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