[PATCH v2] staging: rtlwifi: convert to DEFINE_SHOW_ATTRIBUTE

[Yangtao Li]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
---
v2:
-modify RTL_DEBUGFS_ADD_CORE macro
---
 drivers/staging/rtlwifi/debug.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/rtlwifi/debug.c b/drivers/staging/rtlwifi/debug.c
index 8999feda29b4..dd1cc27e9544 100644
--- a/drivers/staging/rtlwifi/debug.c
+++ b/drivers/staging/rtlwifi/debug.c
@@ -79,24 +79,13 @@ struct rtl_debugfs_priv {
 
 static struct dentry *debugfs_topdir;
 
-static int rtl_debug_get_common(struct seq_file *m, void *v)
+static int common_show(struct seq_file *m, void *v)
 {
        struct rtl_debugfs_priv *debugfs_priv = m->private;
 
        return debugfs_priv->cb_read(m, v);
 }
-
-static int dl_debug_open_common(struct inode *inode, struct file *file)
-{
-       return single_open(file, rtl_debug_get_common, inode->i_private);
-}
-
-static const struct file_operations file_ops_common = {
-       .open = dl_debug_open_common,
-       .read = seq_read,
-       .llseek = seq_lseek,
-       .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(common);
 
 static int rtl_debug_get_mac_page(struct seq_file *m, void *v)
 {
@@ -439,7 +428,7 @@ static ssize_t rtl_debugfs_common_write(struct file *filp,
        return debugfs_priv->cb_write(filp, buffer, count, loff);
 }
 
-static const struct file_operations file_ops_common_write = {
+static const struct file_operations common_write_fops = {
        .owner = THIS_MODULE,
        .write = rtl_debugfs_common_write,
        .open = simple_open,
@@ -488,7 +477,7 @@ static int rtl_debugfs_open_rw(struct inode *inode, struct 
file *filp)
        int ret = 0;
 
        if (filp->f_mode & FMODE_READ)
-               ret = single_open(filp, rtl_debug_get_common, inode->i_private);
+               ret = single_open(filp, common_show, inode->i_private);
        else
                filp->private_data = inode->i_private;
 
@@ -509,7 +498,7 @@ static struct rtl_debugfs_priv rtl_debug_priv_phydm_cmd = {
        .cb_data = 0,
 };
 
-static const struct file_operations file_ops_common_rw = {
+static const struct file_operations common_rw_fops = {
        .owner = THIS_MODULE,
        .open = rtl_debugfs_open_rw,
        .release = rtl_debugfs_close_rw,
@@ -523,7 +512,7 @@ static const struct file_operations file_ops_common_rw = {
                rtl_debug_priv_ ##name.rtlpriv = rtlpriv;                  \
                debugfs_create_file(#name, mode, parent,                   \
                                    &rtl_debug_priv_ ##name,               \
-                                   &file_ops_ ##fopname);                 \
+                                   &fopname_ ##fops);                     \
        } while (0)
 
 #define RTL_DEBUGFS_ADD(name)                                             \
-- 
2.17.0