1 files changed, 23 insertions, 37 deletions

diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 679ddfcec1e..454157717ef 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -9,15 +9,10 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/slab.h>
 #include "core.h"
 #include "debugfs.h"
 
-static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-	return 0;
-}
-
 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
 static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 			    size_t count, loff_t *ppos)			\
@@ -32,7 +27,8 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 									\
 static const struct file_operations name## _ops = {			\
 	.read = name## _read,						\
-	.open = cfg80211_open_file_generic,				\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
 };
 
 DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
@@ -51,17 +47,19 @@ static int ht_print_chan(struct ieee80211_channel *chan,
 		return 0;
 
 	if (chan->flags & IEEE80211_CHAN_DISABLED)
-		return snprintf(buf + offset,
-				buf_size - offset,
-				"%d Disabled\n",
-				chan->center_freq);
-
-	return snprintf(buf + offset,
-			buf_size - offset,
-			"%d HT40 %c%c\n",
-			chan->center_freq,
-			(chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
-			(chan->flags & IEEE80211_CHAN_NO_HT40PLUS)  ? ' ' : '+');
+		return scnprintf(buf + offset,
+				 buf_size - offset,
+				 "%d Disabled\n",
+				 chan->center_freq);
+
+	return scnprintf(buf + offset,
+			 buf_size - offset,
+			 "%d HT40 %c%c\n",
+			 chan->center_freq,
+			 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ?
+				' ' : '-',
+			 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ?
+				' ' : '+');
 }
 
 static ssize_t ht40allow_map_read(struct file *file,
@@ -78,7 +76,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 	if (!buf)
 		return -ENOMEM;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		sband = wiphy->bands[band];
@@ -89,7 +87,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 						buf, buf_size, offset);
 	}
 
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
 
@@ -100,19 +98,16 @@ static ssize_t ht40allow_map_read(struct file *file,
 
 static const struct file_operations ht40allow_map_ops = {
 	.read = ht40allow_map_read,
-	.open = cfg80211_open_file_generic,
+	.open = simple_open,
+	.llseek = default_llseek,
 };
 
 #define DEBUGFS_ADD(name)						\
-	drv->debugfs.name = debugfs_create_file(#name, S_IRUGO, phyd,	\
-						  &drv->wiphy, &name## _ops);
-#define DEBUGFS_DEL(name)						\
-	debugfs_remove(drv->debugfs.name);				\
-	drv->debugfs.name = NULL;
+	debugfs_create_file(#name, S_IRUGO, phyd, &rdev->wiphy, &name## _ops);
 
-void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv)
+void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev)
 {
-	struct dentry *phyd = drv->wiphy.debugfsdir;
+	struct dentry *phyd = rdev->wiphy.debugfsdir;
 
 	DEBUGFS_ADD(rts_threshold);
 	DEBUGFS_ADD(fragmentation_threshold);
@@ -120,12 +115,3 @@ void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv)
 	DEBUGFS_ADD(long_retry_limit);
 	DEBUGFS_ADD(ht40allow_map);
 }
-
-void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv)
-{
-	DEBUGFS_DEL(rts_threshold);
-	DEBUGFS_DEL(fragmentation_threshold);
-	DEBUGFS_DEL(short_retry_limit);
-	DEBUGFS_DEL(long_retry_limit);
-	DEBUGFS_DEL(ht40allow_map);
-}