From 612fcfd9b31f08858d2a2e1279adda367e1ade00 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 12 Jun 2019 16:26:58 +0200
Subject: [PATCH] mac80211: remove unused and unneeded remove_sta_debugfs callback
Git-commit: 612fcfd9b31f08858d2a2e1279adda367e1ade00
Patch-mainline: v5.4-rc1
References: jsc#SLE-13430

The remove_sta_debugfs callback in struct rate_control_ops is no longer
used by any driver, as there is no need for it (the debugfs directory is
already removed recursivly by the mac80211 core.)  Because no one needs
it, just remove it to keep anyone else from accidentally using it in the
future.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612142658.12792-5-gregkh@linuxfoundation.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 include/net/mac80211.h  | 1 -
 net/mac80211/rate.h     | 9 ---------
 net/mac80211/sta_info.c | 1 -
 3 files changed, 11 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e39bf85ae4c2..6cc5b25edf9d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -5946,7 +5946,6 @@ struct rate_control_ops {
 
 	void (*add_sta_debugfs)(void *priv, void *priv_sta,
 				struct dentry *dir);
-	void (*remove_sta_debugfs)(void *priv, void *priv_sta);
 
 	u32 (*get_expected_throughput)(void *priv_sta);
 };
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 5d5348bc41ec..5397c6dad056 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -60,15 +60,6 @@ static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
 #endif
 }
 
-static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
-	struct rate_control_ref *ref = sta->rate_ctrl;
-	if (ref && ref->ops->remove_sta_debugfs)
-		ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
-#endif
-}
-
 void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
 
 /* Get a reference to the rate control algorithm. If `name' is NULL, get the
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 95eb8220e2e4..fb6614f57cbc 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1065,7 +1065,6 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
 	cfg80211_del_sta_sinfo(sdata->dev, sta->sta.addr, sinfo, GFP_KERNEL);
 	kfree(sinfo);
 
-	rate_control_remove_sta_debugfs(sta);
 	ieee80211_sta_debugfs_remove(sta);
 
 	cleanup_single_sta(sta);
-- 
2.16.4