cfg80211/mac80211: use debugfs_remove_recursive

We can save a lot of code and pointers in the structs
by using debugfs_remove_recursive().

First, change cfg80211 to use debugfs_remove_recursive()
so that drivers do not need to clean up any files they
added to the per-wiphy debugfs (if and only if they are
ok to be accessed until after wiphy_unregister!).

Then also make mac80211 use debugfs_remove_recursive()
where necessary -- it need not remove per-wiphy files
as cfg80211 now removes those, but netdev etc. files
still need to be handled but can now be removed without
needing struct dentry pointers to all of them.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 29 deletions

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 33a2e892115b..8721679773da 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -158,13 +158,9 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
 STA_OPS(agg_status);
 
 #define DEBUGFS_ADD(name) \
-	sta->debugfs.name = debugfs_create_file(#name, 0400, \
+	debugfs_create_file(#name, 0400, \
 		sta->debugfs.dir, sta, &sta_ ##name## _ops);
 
-#define DEBUGFS_DEL(name) \
-	debugfs_remove(sta->debugfs.name);\
-	sta->debugfs.name = NULL;
-
 
 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 {
@@ -216,29 +212,6 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 
 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
 {
-	DEBUGFS_DEL(flags);
-	DEBUGFS_DEL(num_ps_buf_frames);
-	DEBUGFS_DEL(inactive_ms);
-	DEBUGFS_DEL(last_seq_ctrl);
-	DEBUGFS_DEL(agg_status);
-	DEBUGFS_DEL(aid);
-	DEBUGFS_DEL(dev);
-	DEBUGFS_DEL(rx_packets);
-	DEBUGFS_DEL(tx_packets);
-	DEBUGFS_DEL(rx_bytes);
-	DEBUGFS_DEL(tx_bytes);
-	DEBUGFS_DEL(rx_duplicates);
-	DEBUGFS_DEL(rx_fragments);
-	DEBUGFS_DEL(rx_dropped);
-	DEBUGFS_DEL(tx_fragments);
-	DEBUGFS_DEL(tx_filtered);
-	DEBUGFS_DEL(tx_retry_failed);
-	DEBUGFS_DEL(tx_retry_count);
-	DEBUGFS_DEL(last_signal);
-	DEBUGFS_DEL(last_qual);
-	DEBUGFS_DEL(last_noise);
-	DEBUGFS_DEL(wep_weak_iv_count);
-
-	debugfs_remove(sta->debugfs.dir);
+	debugfs_remove_recursive(sta->debugfs.dir);
 	sta->debugfs.dir = NULL;
 }