[PATCH -next] rsxx: Convert to DEFINE_SHOW_ATTRIBUTE

Qinglang Miao
2020-07-16T09:00:54Z

From: Liu Shixin <liushixin2@huawei.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
---
drivers/block/rsxx/core.c | 31 ++++---------------------------
1 file changed, 4 insertions(+), 27 deletions(-)

diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index e631749e1..9c35fa35b 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -150,16 +150,6 @@ static int rsxx_attr_stats_show(struct seq_file *m, void *p)
return 0;
}

-static int rsxx_attr_stats_open(struct inode *inode, struct file *file)
-{
- return single_open(file, rsxx_attr_stats_show, inode->i_private);
-}
-
-static int rsxx_attr_pci_regs_open(struct inode *inode, struct file *file)
-{
- return single_open(file, rsxx_attr_pci_regs_show, inode->i_private);
-}
-
static ssize_t rsxx_cram_read(struct file *fp, char __user *ubuf,
size_t cnt, loff_t *ppos)
{
@@ -206,21 +196,8 @@ static const struct file_operations debugfs_cram_fops = {
.write = rsxx_cram_write,
};

-static const struct file_operations debugfs_stats_fops = {
- .owner = THIS_MODULE,
- .open = rsxx_attr_stats_open,
- .read_iter = seq_read_iter,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations debugfs_pci_regs_fops = {
- .owner = THIS_MODULE,
- .open = rsxx_attr_pci_regs_open,
- .read_iter = seq_read_iter,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rsxx_attr_stats);
+DEFINE_SHOW_ATTRIBUTE(rsxx_attr_pci_regs);

static void rsxx_debugfs_dev_new(struct rsxx_cardinfo *card)
{
@@ -234,13 +211,13 @@ static void rsxx_debugfs_dev_new(struct rsxx_cardinfo *card)

debugfs_stats = debugfs_create_file("stats", 0444,
card->debugfs_dir, card,
- &debugfs_stats_fops);
+ &rsxx_attr_stats_fops);
if (IS_ERR_OR_NULL(debugfs_stats))
goto failed_debugfs_stats;

debugfs_pci_regs = debugfs_create_file("pci_regs", 0444,
card->debugfs_dir, card,
- &debugfs_pci_regs_fops);
+ &rsxx_attr_pci_regs_fops);
if (IS_ERR_OR_NULL(debugfs_pci_regs))
goto failed_debugfs_pci_regs;

--
2.17.1