diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2011-12-07 11:35:17 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-12-16 14:30:42 (GMT) |
| commit | a1910f9cad2b4b9cc0d5d326aa65632a23c16088 (patch) | |
| tree | dcc927cc74dfd8918ee2324a98002b961c4a30cd /drivers/net/wireless/mac80211_hwsim.c | |
| parent | 1b2538b2ab8f37e55b91b3cce98d2df5c126125d (diff) | |
| download | linux-a1910f9cad2b4b9cc0d5d326aa65632a23c16088.tar.xz | |
mac80211_hwsim: fix wmediumd_pid
Fix a few minor issues with wmediumd_pid:
a) make static
b) use u32 to match the snd_pid type
c) use ACCESS_ONCE since we don't lock it
d) don't explicitly initialize to 0
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 6cf6d6d..52bcdf4 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -37,7 +37,8 @@ MODULE_AUTHOR("Jouni Malinen"); MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); MODULE_LICENSE("GPL"); -int wmediumd_pid; +static u32 wmediumd_pid; + static int radios = 2; module_param(radios, int, 0444); MODULE_PARM_DESC(radios, "Number of simulated radios"); @@ -665,7 +666,7 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { bool ack; struct ieee80211_tx_info *txi; - int _pid; + u32 _pid; mac80211_hwsim_monitor_rx(hw, skb); @@ -676,7 +677,7 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } /* wmediumd mode check */ - _pid = wmediumd_pid; + _pid = ACCESS_ONCE(wmediumd_pid); if (_pid) return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); @@ -764,7 +765,7 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, struct ieee80211_hw *hw = arg; struct sk_buff *skb; struct ieee80211_tx_info *info; - int _pid; + u32 _pid; hwsim_check_magic(vif); @@ -781,7 +782,7 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, mac80211_hwsim_monitor_rx(hw, skb); /* wmediumd mode check */ - _pid = wmediumd_pid; + _pid = ACCESS_ONCE(wmediumd_pid); if (_pid) return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); @@ -1254,7 +1255,7 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) struct hwsim_vif_priv *vp = (void *)vif->drv_priv; struct sk_buff *skb; struct ieee80211_pspoll *pspoll; - int _pid; + u32 _pid; if (!vp->assoc) return; @@ -1275,7 +1276,7 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) memcpy(pspoll->ta, mac, ETH_ALEN); /* wmediumd mode check */ - _pid = wmediumd_pid; + _pid = ACCESS_ONCE(wmediumd_pid); if (_pid) return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); @@ -1292,7 +1293,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, struct hwsim_vif_priv *vp = (void *)vif->drv_priv; struct sk_buff *skb; struct ieee80211_hdr *hdr; - int _pid; + u32 _pid; if (!vp->assoc) return; @@ -1314,7 +1315,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, memcpy(hdr->addr3, vp->bssid, ETH_ALEN); /* wmediumd mode check */ - _pid = wmediumd_pid; + _pid = ACCESS_ONCE(wmediumd_pid); if (_pid) return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); @@ -1634,8 +1635,6 @@ static int hwsim_init_netlink(void) int rc; printk(KERN_INFO "mac80211_hwsim: initializing netlink\n"); - wmediumd_pid = 0; - rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops, ARRAY_SIZE(hwsim_ops)); if (rc) |