From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
iwl_down was just a wrapper around __iwl_down which was called from
one place only. Replace it to direct call to iwl_down. Add lockdep
warning in iwl_down to ensure it was called with the mutex held.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-agn.c | 19 +++++--------------
drivers/net/wireless/iwlwifi/iwl-agn.h | 2 +-
drivers/net/wireless/iwlwifi/iwl-mac80211.c | 6 +++++-
3 files changed, 11 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ff22c4a..cf1a353 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -738,14 +738,14 @@ int iwl_alive_start(struct iwl_priv *priv)
return iwl_power_update_mode(priv, true);
}
-static void iwl_cancel_deferred_work(struct iwl_priv *priv);
-
-void __iwl_down(struct iwl_priv *priv)
+void iwl_down(struct iwl_priv *priv)
{
int exit_pending;
IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
+ lockdep_assert_held(&priv->shrd->mutex);
+
iwl_scan_cancel_timeout(priv, 200);
/*
@@ -803,15 +803,6 @@ void __iwl_down(struct iwl_priv *priv)
priv->beacon_skb = NULL;
}
-void iwl_down(struct iwl_priv *priv)
-{
- mutex_lock(&priv->shrd->mutex);
- __iwl_down(priv);
- mutex_unlock(&priv->shrd->mutex);
-
- iwl_cancel_deferred_work(priv);
-}
-
/*****************************************************************************
*
* Workqueue callbacks
@@ -869,7 +860,7 @@ void iwlagn_prepare_restart(struct iwl_priv *priv)
bt_status = priv->bt_status;
bt_is_sco = priv->bt_is_sco;
- __iwl_down(priv);
+ iwl_down(priv);
priv->bt_full_concurrent = bt_full_concurrent;
priv->bt_ci_compliance = bt_ci_compliance;
@@ -970,7 +961,7 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
priv->watchdog.function = iwl_bg_watchdog;
}
-static void iwl_cancel_deferred_work(struct iwl_priv *priv)
+void iwl_cancel_deferred_work(struct iwl_priv *priv)
{
if (cfg(priv)->lib->cancel_deferred_work)
cfg(priv)->lib->cancel_deferred_work(priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index 37c325f..8a170b7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -81,8 +81,8 @@ static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd)
hdr->data_valid = 1;
}
-void __iwl_down(struct iwl_priv *priv);
void iwl_down(struct iwl_priv *priv);
+void iwl_cancel_deferred_work(struct iwl_priv *priv);
void iwlagn_prepare_restart(struct iwl_priv *priv);
/* MAC80211 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-mac80211.c b/drivers/net/wireless/iwlwifi/iwl-mac80211.c
index ca0c465..90d8081 100644
--- a/drivers/net/wireless/iwlwifi/iwl-mac80211.c
+++ b/drivers/net/wireless/iwlwifi/iwl-mac80211.c
@@ -296,7 +296,7 @@ static int __iwl_up(struct iwl_priv *priv)
error:
set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
- __iwl_down(priv);
+ iwl_down(priv);
clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
IWL_ERR(priv, "Unable to initialize device.\n");
@@ -341,7 +341,11 @@ static void iwlagn_mac_stop(struct ieee80211_hw *hw)
priv->is_open = 0;
+ mutex_lock(&priv->shrd->mutex);
iwl_down(priv);
+ mutex_unlock(&priv->shrd->mutex);
+
+ iwl_cancel_deferred_work(priv);
flush_workqueue(priv->workqueue);
--
1.7.0.4
--
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