[PATCH 2/5] rtl8192e: r8192_priv: Replace semaphore wx_sem with mutex
From: Binoy Jayan
Date: Wed Jun 01 2016 - 05:27:39 EST
The semaphore 'wx_sem' in the r8192_priv is a simple mutex,
so it should be written as one. Semaphores are going away in the future.
Signed-off-by: Binoy Jayan <binoy.jayan@xxxxxxxxxx>
---
This patch depends on the following patch:
rtl8192e: rtllib_device: Replace semaphore wx_sem with mutex
drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 28 ++++----
drivers/staging/rtl8192e/rtl8192e/rtl_core.h | 2 +-
drivers/staging/rtl8192e/rtl8192e/rtl_wx.c | 104 +++++++++++++--------------
3 files changed, 67 insertions(+), 67 deletions(-)
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 6f7d356..46a5c49 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -993,7 +993,7 @@ static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
spin_lock_init(&priv->irq_th_lock);
spin_lock_init(&priv->rf_ps_lock);
spin_lock_init(&priv->ps_lock);
- sema_init(&priv->wx_sem, 1);
+ mutex_init(&priv->wx_mutex);
sema_init(&priv->rf_sem, 1);
mutex_init(&priv->mutex);
}
@@ -1247,7 +1247,7 @@ static void _rtl92e_if_silent_reset(struct net_device *dev)
RESET_START:
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
if (priv->rtllib->state == RTLLIB_LINKED)
rtl92e_leisure_ps_leave(dev);
@@ -1255,7 +1255,7 @@ RESET_START:
if (priv->up) {
netdev_info(dev, "%s():the driver is not up.\n",
__func__);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return;
}
priv->up = 0;
@@ -1292,7 +1292,7 @@ RESET_START:
rtl92e_dm_backup_state(dev);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
RT_TRACE(COMP_RESET,
"%s():<==========down process is finished\n",
__func__);
@@ -2179,9 +2179,9 @@ static int _rtl92e_open(struct net_device *dev)
struct r8192_priv *priv = rtllib_priv(dev);
int ret;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = _rtl92e_try_up(dev);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -2206,11 +2206,11 @@ static int _rtl92e_close(struct net_device *dev)
rtllib_stop_scan(priv->rtllib);
}
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = _rtl92e_down(dev, true);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
@@ -2242,11 +2242,11 @@ static void _rtl92e_restart(void *data)
reset_wq);
struct net_device *dev = priv->rtllib->dev;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
rtl92e_commit(dev);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
}
static void _rtl92e_set_multicast(struct net_device *dev)
@@ -2265,12 +2265,12 @@ static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
struct r8192_priv *priv = rtllib_priv(dev);
struct sockaddr *addr = mac;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ether_addr_copy(dev->dev_addr, addr->sa_data);
schedule_work(&priv->reset_wq);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -2287,7 +2287,7 @@ static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
struct iw_point *p = &wrq->u.data;
struct ieee_param *ipw = NULL;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
switch (cmd) {
case RTL_IOCTL_WPA_SUPPLICANT:
@@ -2393,7 +2393,7 @@ static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
}
out:
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index f627fdc..369ebf1 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -375,7 +375,7 @@ struct r8192_priv {
struct tasklet_struct irq_tx_tasklet;
struct tasklet_struct irq_prepare_beacon_tasklet;
- struct semaphore wx_sem;
+ struct mutex wx_mutex;
struct semaphore rf_sem;
struct mutex mutex;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
index 70df6a1..78fe833 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
@@ -65,11 +65,11 @@ static int _rtl92e_wx_set_rate(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_rate(priv->rtllib, info, wrqu, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -84,11 +84,11 @@ static int _rtl92e_wx_set_rts(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_rts(priv->rtllib, info, wrqu, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -114,11 +114,11 @@ static int _rtl92e_wx_set_power(struct net_device *dev,
__func__);
return 0;
}
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_power(priv->rtllib, info, wrqu, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -142,11 +142,11 @@ static int _rtl92e_wx_set_rawtx(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_rawtx(priv->rtllib, info, wrqu, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
@@ -158,12 +158,12 @@ static int _rtl92e_wx_force_reset(struct net_device *dev,
{
struct r8192_priv *priv = rtllib_priv(dev);
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
RT_TRACE(COMP_DBG, "%s(): force reset ! extra is %d\n",
__func__, *extra);
priv->force_reset = *extra;
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -177,7 +177,7 @@ static int _rtl92e_wx_adapter_power_status(struct net_device *dev,
(&(priv->rtllib->PowerSaveControl));
struct rtllib_device *ieee = priv->rtllib;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
RT_TRACE(COMP_POWER, "%s(): %s\n", __func__, (*extra == 6) ?
"DC power" : "AC power");
@@ -193,7 +193,7 @@ static int _rtl92e_wx_adapter_power_status(struct net_device *dev,
ieee->ps = *extra;
}
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -207,13 +207,13 @@ static int _rtl92e_wx_set_lps_awake_interval(struct net_device *dev,
struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
(&(priv->rtllib->PowerSaveControl));
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
netdev_info(dev, "%s(): set lps awake interval ! extra is %d\n",
__func__, *extra);
pPSC->RegMaxLPSAwakeIntvl = *extra;
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -223,13 +223,13 @@ static int _rtl92e_wx_set_force_lps(struct net_device *dev,
{
struct r8192_priv *priv = rtllib_priv(dev);
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
netdev_info(dev,
"%s(): force LPS ! extra is %d (1 is open 0 is close)\n",
__func__, *extra);
priv->force_lps = *extra;
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -266,7 +266,7 @@ static int _rtl92e_wx_set_mode(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
rtState = priv->rtllib->eRFPowerState;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
if (wrqu->mode == IW_MODE_ADHOC || wrqu->mode == IW_MODE_MONITOR ||
ieee->bNetPromiscuousMode) {
if (priv->rtllib->PowerSaveControl.bInactivePs) {
@@ -275,7 +275,7 @@ static int _rtl92e_wx_set_mode(struct net_device *dev,
RF_CHANGE_BY_IPS) {
netdev_warn(dev, "%s(): RF is OFF.\n",
__func__);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return -1;
}
netdev_info(dev,
@@ -289,7 +289,7 @@ static int _rtl92e_wx_set_mode(struct net_device *dev,
}
ret = rtllib_wx_set_mode(priv->rtllib, a, wrqu, b);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -425,7 +425,7 @@ static int _rtl92e_wx_set_scan(struct net_device *dev,
}
}
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
priv->rtllib->FirstIe_InScan = true;
@@ -436,7 +436,7 @@ static int _rtl92e_wx_set_scan(struct net_device *dev,
RF_CHANGE_BY_IPS) {
netdev_warn(dev, "%s(): RF is OFF.\n",
__func__);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return -1;
}
RT_TRACE(COMP_PS,
@@ -471,7 +471,7 @@ static int _rtl92e_wx_set_scan(struct net_device *dev,
ret = rtllib_wx_set_scan(priv->rtllib, a, wrqu, b);
}
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -491,11 +491,11 @@ static int _rtl92e_wx_get_scan(struct net_device *dev,
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_get_scan(priv->rtllib, a, wrqu, b);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -513,10 +513,10 @@ static int _rtl92e_wx_set_essid(struct net_device *dev,
__func__);
return 0;
}
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_essid(priv->rtllib, a, wrqu, b);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -528,11 +528,11 @@ static int _rtl92e_wx_get_essid(struct net_device *dev,
int ret;
struct r8192_priv *priv = rtllib_priv(dev);
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_get_essid(priv->rtllib, a, wrqu, b);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -545,12 +545,12 @@ static int _rtl92e_wx_set_nick(struct net_device *dev,
if (wrqu->data.length > IW_ESSID_MAX_SIZE)
return -E2BIG;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
wrqu->data.length = min_t(size_t, wrqu->data.length,
sizeof(priv->nick));
memset(priv->nick, 0, sizeof(priv->nick));
memcpy(priv->nick, extra, wrqu->data.length);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -561,11 +561,11 @@ static int _rtl92e_wx_get_nick(struct net_device *dev,
{
struct r8192_priv *priv = rtllib_priv(dev);
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
wrqu->data.length = strlen(priv->nick);
memcpy(extra, priv->nick, wrqu->data.length);
wrqu->data.flags = 1; /* active */
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
@@ -579,11 +579,11 @@ static int _rtl92e_wx_set_freq(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_freq(priv->rtllib, a, wrqu, b);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -644,11 +644,11 @@ static int _rtl92e_wx_set_wap(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_wap(priv->rtllib, info, awrq, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
@@ -701,11 +701,11 @@ static int _rtl92e_wx_set_enc(struct net_device *dev,
down(&priv->rtllib->ips_sem);
rtl92e_ips_leave(dev);
up(&priv->rtllib->ips_sem);
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
RT_TRACE(COMP_SEC, "Setting SW wep key");
ret = rtllib_wx_set_encode(priv->rtllib, info, wrqu, key);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
@@ -799,7 +799,7 @@ static int _rtl92e_wx_set_retry(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
wrqu->retry.disabled) {
@@ -822,7 +822,7 @@ static int _rtl92e_wx_set_retry(struct net_device *dev,
rtl92e_commit(dev);
exit:
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return err;
}
@@ -875,7 +875,7 @@ static int _rtl92e_wx_set_sens(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
if (priv->rf_set_sens == NULL) {
err = -1; /* we have not this support for this radio */
goto exit;
@@ -886,7 +886,7 @@ static int _rtl92e_wx_set_sens(struct net_device *dev,
err = -EINVAL;
exit:
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return err;
}
@@ -902,7 +902,7 @@ static int _rtl92e_wx_set_encode_ext(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
priv->rtllib->wx_set_enc = 1;
down(&priv->rtllib->ips_sem);
@@ -969,7 +969,7 @@ static int _rtl92e_wx_set_encode_ext(struct net_device *dev,
end_hw_sec:
priv->rtllib->wx_set_enc = 0;
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -985,9 +985,9 @@ static int _rtl92e_wx_set_auth(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_auth(priv->rtllib, info, &(data->param), extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -1003,9 +1003,9 @@ static int _rtl92e_wx_set_mlme(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_mlme(priv->rtllib, info, wrqu, extra);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -1020,9 +1020,9 @@ static int _rtl92e_wx_set_gen_ie(struct net_device *dev,
if (priv->bHwRadioOff)
return 0;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
ret = rtllib_wx_set_gen_ie(priv->rtllib, extra, data->data.length);
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return ret;
}
@@ -1097,14 +1097,14 @@ static int _rtl92e_wx_get_promisc_mode(struct net_device *dev,
struct r8192_priv *priv = rtllib_priv(dev);
struct rtllib_device *ieee = priv->rtllib;
- down(&priv->wx_sem);
+ mutex_lock(&priv->wx_mutex);
snprintf(extra, 45, "PromiscuousMode:%d, FilterSrcSTAFrame:%d",
ieee->IntelPromiscuousModeInfo.bPromiscuousOn,
ieee->IntelPromiscuousModeInfo.bFilterSourceStationFrame);
wrqu->data.length = strlen(extra) + 1;
- up(&priv->wx_sem);
+ mutex_unlock(&priv->wx_mutex);
return 0;
}
--
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