ath9k_htc: Cleanup HTC debugfs

Move the ath9k_htc debugfs under ieee80211 to be inline
with ath9k driver and it also helps to simplify debug code.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Acked-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 27 insertions, 137 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 852cdcfbcbb6..48a885575085 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -359,14 +359,6 @@ struct ath_rx_stats {
 
 struct ath9k_debug {
         struct dentry *debugfs_phy;
-        struct dentry *debugfs_tgt_int_stats;
-        struct dentry *debugfs_tgt_tx_stats;
-        struct dentry *debugfs_tgt_rx_stats;
-        struct dentry *debugfs_xmit;
-        struct dentry *debugfs_recv;
-        struct dentry *debugfs_slot;
-        struct dentry *debugfs_queue;
-        struct dentry *debugfs_debug;
         struct ath_tx_stats tx_stats;
         struct ath_rx_stats rx_stats;
 };
@@ -613,15 +605,9 @@ void ath9k_htc_suspend(struct htc_target *htc_handle);
 int ath9k_htc_resume(struct htc_target *htc_handle);
 #endif
 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
-int ath9k_htc_debug_create_root(void);
-void ath9k_htc_debug_remove_root(void);
 int ath9k_htc_init_debug(struct ath_hw *ah);
-void ath9k_htc_exit_debug(struct ath_hw *ah);
 #else
-static inline int ath9k_htc_debug_create_root(void) { return 0; };
-static inline void ath9k_htc_debug_remove_root(void) {};
 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
-static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
 
 #endif /* HTC_H */
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index 7394a1b9882a..eca777497fe5 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -16,8 +16,6 @@
 
 #include "htc.h"
 
-static struct dentry *ath9k_debugfs_root;
-
 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 {
         file->private_data = inode->i_private;
@@ -481,100 +479,27 @@ int ath9k_htc_init_debug(struct ath_hw *ah)
         struct ath_common *common = ath9k_hw_common(ah);
         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 
-        if (!ath9k_debugfs_root)
-                return -ENOENT;
-
-        priv->debug.debugfs_phy = debugfs_create_dir(wiphy_name(priv->hw->wiphy),
-                                                     ath9k_debugfs_root);
+        priv->debug.debugfs_phy = debugfs_create_dir(KBUILD_MODNAME,
+                                             priv->hw->wiphy->debugfsdir);
         if (!priv->debug.debugfs_phy)
-                goto err;
-
-        priv->debug.debugfs_tgt_int_stats = debugfs_create_file("tgt_int_stats",
-                                                        S_IRUSR,
-                                                        priv->debug.debugfs_phy,
-                                                        priv, &fops_tgt_int_stats);
-        if (!priv->debug.debugfs_tgt_int_stats)
-                goto err;
-
-        priv->debug.debugfs_tgt_tx_stats = debugfs_create_file("tgt_tx_stats",
-                                                       S_IRUSR,
-                                                       priv->debug.debugfs_phy,
-                                                       priv, &fops_tgt_tx_stats);
-        if (!priv->debug.debugfs_tgt_tx_stats)
-                goto err;
-
-        priv->debug.debugfs_tgt_rx_stats = debugfs_create_file("tgt_rx_stats",
-                                                       S_IRUSR,
-                                                       priv->debug.debugfs_phy,
-                                                       priv, &fops_tgt_rx_stats);
-        if (!priv->debug.debugfs_tgt_rx_stats)
-                goto err;
-
-        priv->debug.debugfs_xmit = debugfs_create_file("xmit", S_IRUSR,
-                                                       priv->debug.debugfs_phy,
-                                                       priv, &fops_xmit);
-        if (!priv->debug.debugfs_xmit)
-                goto err;
-
-        priv->debug.debugfs_recv = debugfs_create_file("recv", S_IRUSR,
-                                                       priv->debug.debugfs_phy,
-                                                       priv, &fops_recv);
-        if (!priv->debug.debugfs_recv)
-                goto err;
-
-        priv->debug.debugfs_slot = debugfs_create_file("slot", S_IRUSR,
-                                                       priv->debug.debugfs_phy,
-                                                       priv, &fops_slot);
-        if (!priv->debug.debugfs_slot)
-                goto err;
-
-        priv->debug.debugfs_queue = debugfs_create_file("queue", S_IRUSR,
-                                                        priv->debug.debugfs_phy,
-                                                        priv, &fops_queue);
-        if (!priv->debug.debugfs_queue)
-                goto err;
-
-        priv->debug.debugfs_debug = debugfs_create_file("debug",
-                                                        S_IRUSR | S_IWUSR,
-                                                        priv->debug.debugfs_phy,
-                                                        priv, &fops_debug);
-        if (!priv->debug.debugfs_debug)
-                goto err;
-
-        return 0;
-
-err:
-        ath9k_htc_exit_debug(ah);
-        return -ENOMEM;
-}
-
-void ath9k_htc_exit_debug(struct ath_hw *ah)
-{
-        struct ath_common *common = ath9k_hw_common(ah);
-        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
-
-        debugfs_remove(priv->debug.debugfs_queue);
-        debugfs_remove(priv->debug.debugfs_slot);
-        debugfs_remove(priv->debug.debugfs_recv);
-        debugfs_remove(priv->debug.debugfs_xmit);
-        debugfs_remove(priv->debug.debugfs_tgt_int_stats);
-        debugfs_remove(priv->debug.debugfs_tgt_tx_stats);
-        debugfs_remove(priv->debug.debugfs_tgt_rx_stats);
-        debugfs_remove(priv->debug.debugfs_debug);
-        debugfs_remove(priv->debug.debugfs_phy);
-}
+                return -ENOMEM;
 
-int ath9k_htc_debug_create_root(void)
-{
-        ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
-        if (!ath9k_debugfs_root)
-                return -ENOENT;
+        debugfs_create_file("tgt_int_stats", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_tgt_int_stats);
+        debugfs_create_file("tgt_tx_stats", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_tgt_tx_stats);
+        debugfs_create_file("tgt_rx_stats", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_tgt_rx_stats);
+        debugfs_create_file("xmit", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_xmit);
+        debugfs_create_file("recv", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_recv);
+        debugfs_create_file("slot", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_slot);
+        debugfs_create_file("queue", S_IRUSR, priv->debug.debugfs_phy,
+                                priv, &fops_queue);
+        debugfs_create_file("debug", S_IRUSR | S_IWUSR, priv->debug.debugfs_phy,
+                                priv, &fops_debug);
 
         return 0;
 }
-
-void ath9k_htc_debug_remove_root(void)
-{
-        debugfs_remove(ath9k_debugfs_root);
-        ath9k_debugfs_root = NULL;
-}
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 22736eb901cf..06e043bffaf4 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -140,7 +140,6 @@ static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
 
 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
 {
-        ath9k_htc_exit_debug(priv->ah);
         ath9k_hw_deinit(priv->ah);
         kfree(priv->ah);
         priv->ah = NULL;
@@ -700,12 +699,6 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
                 goto err_hw;
         }
 
-        ret = ath9k_htc_init_debug(ah);
-        if (ret) {
-                ath_err(common, "Unable to create debugfs files\n");
-                goto err_debug;
-        }
-
         ret = ath9k_init_queues(priv);
         if (ret)
                 goto err_queues;
@@ -725,8 +718,6 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
         return 0;
 
 err_queues:
-        ath9k_htc_exit_debug(ah);
-err_debug:
         ath9k_hw_deinit(ah);
 err_hw:
 
@@ -867,6 +858,12 @@ static int ath9k_init_device(struct ath9k_htc_priv *priv,
                         goto err_world;
         }
 
+        error = ath9k_htc_init_debug(priv->ah);
+        if (error) {
+                ath_err(common, "Unable to create debugfs files\n");
+                goto err_world;
+        }
+
         ath_dbg(common, ATH_DBG_CONFIG,
                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, "
                 "BE:%d, BK:%d, VI:%d, VO:%d\n",
@@ -987,38 +984,20 @@ int ath9k_htc_resume(struct htc_target *htc_handle)
 
 static int __init ath9k_htc_init(void)
 {
-        int error;
-
-        error = ath9k_htc_debug_create_root();
-        if (error < 0) {
-                printk(KERN_ERR
-                        "ath9k_htc: Unable to create debugfs root: %d\n",
-                        error);
-                goto err_dbg;
-        }
-
-        error = ath9k_hif_usb_init();
-        if (error < 0) {
+        if (ath9k_hif_usb_init() < 0) {
                 printk(KERN_ERR
                         "ath9k_htc: No USB devices found,"
                         " driver not installed.\n");
-                error = -ENODEV;
-                goto err_usb;
+                return -ENODEV;
         }
 
         return 0;
-
-err_usb:
-        ath9k_htc_debug_remove_root();
-err_dbg:
-        return error;
 }
 module_init(ath9k_htc_init);
 
 static void __exit ath9k_htc_exit(void)
 {
         ath9k_hif_usb_exit();
-        ath9k_htc_debug_remove_root();
         printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
 }
 module_exit(ath9k_htc_exit);