1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 6d49dfbee964..ea1452cf9c90 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -2444,6 +2444,23 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
         return count;
 }
 
+static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
+                                        const char __user *user_buf,
+                                        size_t count, loff_t *ppos)
+{
+        struct iwl_priv *priv = file->private_data;
+        char buf[8];
+        int buf_size;
+
+        memset(buf, 0, sizeof(buf));
+        buf_size = min(count, sizeof(buf) -  1);
+        if (copy_from_user(buf, user_buf, buf_size))
+                return -EFAULT;
+
+        iwl_cmd_echo_test(priv);
+        return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -2467,6 +2484,7 @@ DEBUGFS_WRITE_FILE_OPS(wd_timeout);
 DEBUGFS_READ_FILE_OPS(bt_traffic);
 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
 DEBUGFS_READ_FILE_OPS(reply_tx_error);
+DEBUGFS_WRITE_FILE_OPS(echo_test);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 static ssize_t iwl_dbgfs_debug_level_read(struct file *file,
@@ -2575,6 +2593,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
         DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
+        DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
         if (iwl_advanced_bt_coexist(priv))
                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
 #ifdef CONFIG_IWLWIFI_DEBUG