From: Johannes Berg <johannes.berg@xxxxxxxxx>
spin_is_locked() can return zero on some (UP?)
configurations because locks don't exist, and
that causes an endless amount of warnings. Use
lockdep_assert_held() instead, which has two
advantages:
1) it verifies the current task is holding
the lock or mutex
2) it compiles away completely when lockdep
is not enabled
Cc: stable@xxxxxxxxxx [2.6.34+, maybe only parts of patch]
Reported-by: Thomas Meyer <thomas@xxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 2 +-
drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 2 +-
drivers/net/wireless/iwlwifi/iwl-scan.c | 2 +-
drivers/net/wireless/iwlwifi/iwl-sta.c | 6 +++---
4 files changed, 6 insertions(+), 6 deletions(-)
--- wireless-testing.orig/drivers/net/wireless/iwlwifi/iwl-agn-lib.c 2010-07-27 09:50:28.000000000 +0200
+++ wireless-testing/drivers/net/wireless/iwlwifi/iwl-agn-lib.c 2010-08-06 16:12:24.000000000 +0200
@@ -1429,7 +1429,7 @@ int iwlagn_manage_ibss_station(struct iw
void iwl_free_tfds_in_queue(struct iwl_priv *priv,
int sta_id, int tid, int freed)
{
- WARN_ON(!spin_is_locked(&priv->sta_lock));
+ lockdep_assert_held(&priv->sta_lock);
if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
--- wireless-testing.orig/drivers/net/wireless/iwlwifi/iwl-agn-tx.c 2010-08-05 23:30:25.000000000 +0200
+++ wireless-testing/drivers/net/wireless/iwlwifi/iwl-agn-tx.c 2010-08-06 16:12:24.000000000 +0200
@@ -1117,7 +1117,7 @@ int iwlagn_txq_check_empty(struct iwl_pr
u8 *addr = priv->stations[sta_id].sta.sta.addr;
struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
- WARN_ON(!spin_is_locked(&priv->sta_lock));
+ lockdep_assert_held(&priv->sta_lock);
switch (priv->stations[sta_id].tid[tid].agg.state) {
case IWL_EMPTYING_HW_QUEUE_DELBA:
--- wireless-testing.orig/drivers/net/wireless/iwlwifi/iwl-scan.c 2010-07-30 08:43:30.000000000 +0200
+++ wireless-testing/drivers/net/wireless/iwlwifi/iwl-scan.c 2010-08-06 16:12:24.000000000 +0200
@@ -298,7 +298,7 @@ EXPORT_SYMBOL(iwl_init_scan_params);
static int iwl_scan_initiate(struct iwl_priv *priv, struct ieee80211_vif *vif)
{
- WARN_ON(!mutex_is_locked(&priv->mutex));
+ lockdep_assert_held(&priv->mutex);
IWL_DEBUG_INFO(priv, "Starting scan...\n");
set_bit(STATUS_SCANNING, &priv->status);
--- wireless-testing.orig/drivers/net/wireless/iwlwifi/iwl-sta.c 2010-08-05 23:30:25.000000000 +0200
+++ wireless-testing/drivers/net/wireless/iwlwifi/iwl-sta.c 2010-08-06 16:12:24.000000000 +0200
@@ -773,7 +773,7 @@ static int iwl_send_static_wepkey_cmd(st
int iwl_restore_default_wep_keys(struct iwl_priv *priv)
{
- WARN_ON(!mutex_is_locked(&priv->mutex));
+ lockdep_assert_held(&priv->mutex);
return iwl_send_static_wepkey_cmd(priv, 0);
}
@@ -784,7 +784,7 @@ int iwl_remove_default_wep_key(struct iw
{
int ret;
- WARN_ON(!mutex_is_locked(&priv->mutex));
+ lockdep_assert_held(&priv->mutex);
IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
keyconf->keyidx);
@@ -808,7 +808,7 @@ int iwl_set_default_wep_key(struct iwl_p
{
int ret;
- WARN_ON(!mutex_is_locked(&priv->mutex));
+ lockdep_assert_held(&priv->mutex);
if (keyconf->keylen != WEP_KEY_LEN_128 &&
keyconf->keylen != WEP_KEY_LEN_64) {
--
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