From: Johannes Berg <johannes.berg@xxxxxxxxx>
The wiphy guard simplifies some code here, so use it.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/debugfs.c | 18 +++++++++---------
net/mac80211/ethtool.c | 18 ++++++------------
net/mac80211/iface.c | 25 +++++++++----------------
3 files changed, 24 insertions(+), 37 deletions(-)
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index be2e486907f9..8b42e445a713 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -284,7 +284,8 @@ static ssize_t aql_txq_limit_write(struct file *file,
q_limit_low_old = local->aql_txq_limit_low[ac];
q_limit_high_old = local->aql_txq_limit_high[ac];
- wiphy_lock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
+
local->aql_txq_limit_low[ac] = q_limit_low;
local->aql_txq_limit_high[ac] = q_limit_high;
@@ -296,7 +297,6 @@ static ssize_t aql_txq_limit_write(struct file *file,
sta->airtime[ac].aql_limit_high = q_limit_high;
}
}
- wiphy_unlock(local->hw.wiphy);
return count;
}
@@ -414,10 +414,10 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf,
int ret;
rtnl_lock();
- wiphy_lock(local->hw.wiphy);
- __ieee80211_suspend(&local->hw, NULL);
- ret = __ieee80211_resume(&local->hw);
- wiphy_unlock(local->hw.wiphy);
+ scoped_guard(wiphy, local->hw.wiphy) {
+ __ieee80211_suspend(&local->hw, NULL);
+ ret = __ieee80211_resume(&local->hw);
+ }
if (ret)
cfg80211_shutdown_all_interfaces(local->hw.wiphy);
@@ -590,9 +590,9 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local,
char buf[20];
int res;
- wiphy_lock(local->hw.wiphy);
- res = drv_get_stats(local, &stats);
- wiphy_unlock(local->hw.wiphy);
+ scoped_guard(wiphy, local->hw.wiphy) {
+ res = drv_get_stats(local, &stats);
+ }
if (res)
return res;
res = printvalue(&stats, buf, sizeof(buf));
diff --git a/net/mac80211/ethtool.c b/net/mac80211/ethtool.c
index 99f6174a9d69..069aa05139cd 100644
--- a/net/mac80211/ethtool.c
+++ b/net/mac80211/ethtool.c
@@ -19,16 +19,13 @@ static int ieee80211_set_ringparam(struct net_device *dev,
struct netlink_ext_ack *extack)
{
struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
- int ret;
if (rp->rx_mini_pending != 0 || rp->rx_jumbo_pending != 0)
return -EINVAL;
- wiphy_lock(local->hw.wiphy);
- ret = drv_set_ringparam(local, rp->tx_pending, rp->rx_pending);
- wiphy_unlock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
- return ret;
+ return drv_set_ringparam(local, rp->tx_pending, rp->rx_pending);
}
static void ieee80211_get_ringparam(struct net_device *dev,
@@ -40,10 +37,10 @@ static void ieee80211_get_ringparam(struct net_device *dev,
memset(rp, 0, sizeof(*rp));
- wiphy_lock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
+
drv_get_ringparam(local, &rp->tx_pending, &rp->tx_max_pending,
&rp->rx_pending, &rp->rx_max_pending);
- wiphy_unlock(local->hw.wiphy);
}
static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
@@ -109,7 +106,7 @@ static void ieee80211_get_stats(struct net_device *dev,
* network device.
*/
- wiphy_lock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
sta = sta_info_get_bss(sdata, sdata->deflink.u.mgd.bssid);
@@ -205,13 +202,10 @@ static void ieee80211_get_stats(struct net_device *dev,
else
data[i++] = -1LL;
- if (WARN_ON(i != STA_STATS_LEN)) {
- wiphy_unlock(local->hw.wiphy);
+ if (WARN_ON(i != STA_STATS_LEN))
return;
- }
drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
- wiphy_unlock(local->hw.wiphy);
}
static void ieee80211_get_strings(struct net_device *dev, u32 sset, u8 *data)
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index a8fbedd530f4..32aaf3856ccf 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -300,7 +300,6 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
- int ret;
/*
* This happens during unregistration if there's a bond device
@@ -310,11 +309,9 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
if (!dev->ieee80211_ptr->registered)
return 0;
- wiphy_lock(local->hw.wiphy);
- ret = _ieee80211_change_mac(sdata, addr);
- wiphy_unlock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
- return ret;
+ return _ieee80211_change_mac(sdata, addr);
}
static inline int identical_mac_addr_allowed(int type1, int type2)
@@ -450,16 +447,13 @@ static int ieee80211_open(struct net_device *dev)
if (!is_valid_ether_addr(dev->dev_addr))
return -EADDRNOTAVAIL;
- wiphy_lock(sdata->local->hw.wiphy);
+ guard(wiphy)(sdata->local->hw.wiphy);
+
err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type);
if (err)
- goto out;
+ return err;
- err = ieee80211_do_open(&sdata->wdev, true);
-out:
- wiphy_unlock(sdata->local->hw.wiphy);
-
- return err;
+ return ieee80211_do_open(&sdata->wdev, true);
}
static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_down)
@@ -780,11 +774,11 @@ static int ieee80211_stop(struct net_device *dev)
ieee80211_stop_mbssid(sdata);
}
- wiphy_lock(sdata->local->hw.wiphy);
+ guard(wiphy)(sdata->local->hw.wiphy);
+
wiphy_work_cancel(sdata->local->hw.wiphy, &sdata->activate_links_work);
ieee80211_do_stop(sdata, true);
- wiphy_unlock(sdata->local->hw.wiphy);
return 0;
}
@@ -2282,7 +2276,7 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
*/
cfg80211_shutdown_all_interfaces(local->hw.wiphy);
- wiphy_lock(local->hw.wiphy);
+ guard(wiphy)(local->hw.wiphy);
WARN(local->open_count, "%s: open count remains %d\n",
wiphy_name(local->hw.wiphy), local->open_count);
@@ -2312,7 +2306,6 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
if (!netdev)
kfree(sdata);
}
- wiphy_unlock(local->hw.wiphy);
}
static int netdev_notify(struct notifier_block *nb,
--
2.47.0
