iwlagn: transport handler can register debugfs entries

Add a handler in iwl_trans_ops to allow it to add entries under debugfs dir
given by the upper level.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 4a0c7867cb6e..a9b3157994e9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -63,6 +63,8 @@
 #ifndef __iwl_trans_h__
 #define __iwl_trans_h__
 
+#include <linux/debugfs.h>
+
  /*This file includes the declaration that are exported from the transport
  * layer */
 
@@ -98,6 +100,8 @@ struct iwl_shared;
  *            layer shall not pass any Rx.
  * @free: release all the ressource for the transport layer itself such as
  *        irq, tasklet etc...
+ * @dbgfs_register: add the dbgfs files under this directory. Files will be
+ *      automatically deleted.
  */
 struct iwl_trans_ops {
 
@@ -128,6 +132,8 @@ struct iwl_trans_ops {
 
         void (*sync_irq)(struct iwl_priv *priv);
         void (*free)(struct iwl_priv *priv);
+
+        int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir);
 };
 
 /**
@@ -232,6 +238,12 @@ static inline void iwl_trans_free(struct iwl_trans *trans)
         trans->ops->free(priv(trans));
 }
 
+static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
+                                            struct dentry *dir)
+{
+        return trans->ops->dbgfs_register(trans, dir);
+}
+
 /*****************************************************
 * Transport layers implementations
 ******************************************************/