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authorJohannes Berg <johannes.berg@intel.com>2010-09-15 13:28:15 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-09-16 15:46:00 -0400
commit46a5ebaf02d69e26ee0f47a0b8d2d9bc619240d4 (patch)
tree77bc5ceee61ce125c4b608d7b979bf8d033ffdcc
parentf5521b13880f4f4f612e1d20dd4f565122d16e04 (diff)
downloadop-kernel-dev-46a5ebaf02d69e26ee0f47a0b8d2d9bc619240d4.zip
op-kernel-dev-46a5ebaf02d69e26ee0f47a0b8d2d9bc619240d4.tar.gz
cfg80211/mac80211: use lockdep_assert_held
Instead of using a WARN_ON(!mutex_is_locked()) use lockdep_assert_held() which compiles away completely when lockdep isn't enabled, and also is a more accurate assertion since it checks that the current thread is holding the mutex. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/mac80211/chan.c2
-rw-r--r--net/mac80211/key.c2
-rw-r--r--net/mac80211/mlme.c2
-rw-r--r--net/mac80211/sta_info.c2
-rw-r--r--net/mac80211/util.c4
-rw-r--r--net/wireless/core.h9
-rw-r--r--net/wireless/reg.c6
7 files changed, 17 insertions, 10 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 32be11e..5b24740 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -11,7 +11,7 @@ __ieee80211_get_channel_mode(struct ieee80211_local *local,
{
struct ieee80211_sub_if_data *sdata;
- WARN_ON(!mutex_is_locked(&local->iflist_mtx));
+ lockdep_assert_held(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata == ignore)
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 3570f8c..6a63d1a 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -49,7 +49,7 @@ static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static void assert_key_lock(struct ieee80211_local *local)
{
- WARN_ON(!mutex_is_locked(&local->key_mtx));
+ lockdep_assert_held(&local->key_mtx);
}
static struct ieee80211_sta *get_sta_for_key(struct ieee80211_key *key)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 0cb822c..bfb0eab 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -92,7 +92,7 @@ enum rx_mgmt_action {
/* utils */
static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
{
- WARN_ON(!mutex_is_locked(&ifmgd->mtx));
+ lockdep_assert_held(&ifmgd->mtx);
}
/*
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index e356ff8..44e10a9 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -280,7 +280,7 @@ static int sta_info_finish_insert(struct sta_info *sta, bool async)
unsigned long flags;
int err = 0;
- WARN_ON(!mutex_is_locked(&local->sta_mtx));
+ lockdep_assert_held(&local->sta_mtx);
/* notify driver */
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index bd40b11..9f21a69 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1296,9 +1296,9 @@ void ieee80211_recalc_smps(struct ieee80211_local *local,
int count = 0;
if (forsdata)
- WARN_ON(!mutex_is_locked(&forsdata->u.mgd.mtx));
+ lockdep_assert_held(&forsdata->u.mgd.mtx);
- WARN_ON(!mutex_is_locked(&local->iflist_mtx));
+ lockdep_assert_held(&local->iflist_mtx);
/*
* This function could be improved to handle multiple
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 58ab2c7..37580e0 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -95,7 +95,10 @@ extern struct mutex cfg80211_mutex;
extern struct list_head cfg80211_rdev_list;
extern int cfg80211_rdev_list_generation;
-#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))
+static inline void assert_cfg80211_lock(void)
+{
+ lockdep_assert_held(&cfg80211_mutex);
+}
/*
* You can use this to mark a wiphy_idx as not having an associated wiphy.
@@ -202,8 +205,8 @@ static inline void wdev_unlock(struct wireless_dev *wdev)
mutex_unlock(&wdev->mtx);
}
-#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx));
-#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx));
+#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx)
+#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
enum cfg80211_event_type {
EVENT_CONNECT_RESULT,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b0d9a08..d14bbf9 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -74,7 +74,11 @@ const struct ieee80211_regdomain *cfg80211_regdomain;
* - last_request
*/
static DEFINE_MUTEX(reg_mutex);
-#define assert_reg_lock() WARN_ON(!mutex_is_locked(&reg_mutex))
+
+static inline void assert_reg_lock(void)
+{
+ lockdep_assert_held(&reg_mutex);
+}
/* Used to queue up regulatory hints */
static LIST_HEAD(reg_requests_list);
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