From 4e9772b0a94c7d3a5f7062ba94afdbb9e692275d Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 15 Jan 2010 13:43:40 -0800 Subject: [PATCH] iwlwifi: remove extra statistics request from debugfs When reading current ucode statistics information from debugfs, in current implementation, it will always send a new "statistics request" to uCode. In normal operation, uCode should report the statistics per beacon interval. Remove this extra request to reduce the additional command exchanges between driver and uCode. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 41 ------------------------------ 1 file changed, 41 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index a3d461f..38e2f9f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -1109,16 +1109,6 @@ static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file, if (!iwl_is_alive(priv)) return -EAGAIN; - /* make request to uCode to retrieve statistics information */ - mutex_lock(&priv->mutex); - ret = iwl_send_statistics_request(priv, CMD_SYNC, false); - mutex_unlock(&priv->mutex); - - if (ret) { - IWL_ERR(priv, - "Error sending statistics request: %zd\n", ret); - return -EAGAIN; - } buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) { IWL_ERR(priv, "Can not allocate Buffer\n"); @@ -1552,16 +1542,6 @@ static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file, if (!iwl_is_alive(priv)) return -EAGAIN; - /* make request to uCode to retrieve statistics information */ - mutex_lock(&priv->mutex); - ret = iwl_send_statistics_request(priv, CMD_SYNC, false); - mutex_unlock(&priv->mutex); - - if (ret) { - IWL_ERR(priv, - "Error sending statistics request: %zd\n", ret); - return -EAGAIN; - } buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) { IWL_ERR(priv, "Can not allocate Buffer\n"); @@ -1739,16 +1719,6 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file, if (!iwl_is_alive(priv)) return -EAGAIN; - /* make request to uCode to retrieve statistics information */ - mutex_lock(&priv->mutex); - ret = iwl_send_statistics_request(priv, CMD_SYNC, false); - mutex_unlock(&priv->mutex); - - if (ret) { - IWL_ERR(priv, - "Error sending statistics request: %zd\n", ret); - return -EAGAIN; - } buf = kzalloc(bufsz, GFP_KERNEL); if (!buf) { IWL_ERR(priv, "Can not allocate Buffer\n"); @@ -1986,23 +1956,12 @@ static ssize_t iwl_dbgfs_tx_power_read(struct file *file, struct iwl_priv *priv = file->private_data; char buf[128]; int pos = 0; - ssize_t ret; const size_t bufsz = sizeof(buf); struct statistics_tx *tx; if (!iwl_is_alive(priv)) pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); else { - /* make request to uCode to retrieve statistics information */ - mutex_lock(&priv->mutex); - ret = iwl_send_statistics_request(priv, CMD_SYNC, false); - mutex_unlock(&priv->mutex); - - if (ret) { - IWL_ERR(priv, "Error sending statistics request: %zd\n", - ret); - return -EAGAIN; - } tx = &priv->statistics.tx; if (tx->tx_power.ant_a || tx->tx_power.ant_b || -- 1.8.2.3