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-rw-r--r--drivers/net/wireless/microchip/wilc1000/cfg80211.c41
-rw-r--r--drivers/net/wireless/microchip/wilc1000/hif.c15
-rw-r--r--drivers/net/wireless/microchip/wilc1000/netdev.c43
-rw-r--r--drivers/net/wireless/microchip/wilc1000/netdev.h5
-rw-r--r--drivers/net/wireless/microchip/wilc1000/wlan.c5
5 files changed, 64 insertions, 45 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 7d9fb9f2d527..089102ed9ae5 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -237,11 +237,12 @@ static int set_channel(struct wiphy *wiphy,
struct wilc_vif *vif;
u32 channelnum;
int result;
+ int srcu_idx;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
vif = wilc_get_wl_to_vif(wl);
if (IS_ERR(vif)) {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return PTR_ERR(vif);
}
@@ -252,7 +253,7 @@ static int set_channel(struct wiphy *wiphy,
if (result)
netdev_err(vif->ndev, "Error in setting channel\n");
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return result;
}
@@ -805,8 +806,9 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
struct wilc *wl = wiphy_priv(wiphy);
struct wilc_vif *vif;
struct wilc_priv *priv;
+ int srcu_idx;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
vif = wilc_get_wl_to_vif(wl);
if (IS_ERR(vif))
goto out;
@@ -861,7 +863,7 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n");
out:
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return ret;
}
@@ -1537,19 +1539,20 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
if (type == NL80211_IFTYPE_MONITOR) {
struct net_device *ndev;
+ int srcu_idx;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
vif = wilc_get_vif_from_type(wl, WILC_AP_MODE);
if (!vif) {
vif = wilc_get_vif_from_type(wl, WILC_GO_MODE);
if (!vif) {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
goto validate_interface;
}
}
if (vif->monitor_flag) {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
goto validate_interface;
}
@@ -1557,12 +1560,12 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
if (ndev) {
vif->monitor_flag = 1;
} else {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return ERR_PTR(-EINVAL);
}
wdev = &vif->priv.wdev;
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return wdev;
}
@@ -1610,7 +1613,7 @@ static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
list_del_rcu(&vif->list);
wl->vif_num--;
mutex_unlock(&wl->vif_mutex);
- synchronize_rcu();
+ synchronize_srcu(&wl->srcu);
return 0;
}
@@ -1635,23 +1638,25 @@ static void wilc_set_wakeup(struct wiphy *wiphy, bool enabled)
{
struct wilc *wl = wiphy_priv(wiphy);
struct wilc_vif *vif;
+ int srcu_idx;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
vif = wilc_get_wl_to_vif(wl);
if (IS_ERR(vif)) {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return;
}
netdev_info(vif->ndev, "cfg set wake up = %d\n", enabled);
wilc_set_wowlan_trigger(vif, enabled);
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
}
static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
enum nl80211_tx_power_setting type, int mbm)
{
int ret;
+ int srcu_idx;
s32 tx_power = MBM_TO_DBM(mbm);
struct wilc *wl = wiphy_priv(wiphy);
struct wilc_vif *vif;
@@ -1659,10 +1664,10 @@ static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
if (!wl->initialized)
return -EIO;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
vif = wilc_get_wl_to_vif(wl);
if (IS_ERR(vif)) {
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return -EINVAL;
}
@@ -1674,7 +1679,7 @@ static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
ret = wilc_set_tx_power(vif, tx_power);
if (ret)
netdev_err(vif->ndev, "Failed to set tx power\n");
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return ret;
}
@@ -1757,6 +1762,7 @@ static void wlan_init_locks(struct wilc *wl)
init_completion(&wl->cfg_event);
init_completion(&wl->sync_event);
init_completion(&wl->txq_thread_started);
+ init_srcu_struct(&wl->srcu);
}
void wlan_deinit_locks(struct wilc *wilc)
@@ -1767,6 +1773,7 @@ void wlan_deinit_locks(struct wilc *wilc)
mutex_destroy(&wilc->txq_add_to_head_cs);
mutex_destroy(&wilc->vif_mutex);
mutex_destroy(&wilc->deinit_lock);
+ cleanup_srcu_struct(&wilc->srcu);
}
int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type,
diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index 919de6ffb821..3925ca653e80 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -1570,11 +1570,12 @@ void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
struct host_if_drv *hif_drv;
struct host_if_msg *msg;
struct wilc_vif *vif;
+ int srcu_idx;
int result;
int id;
id = get_unaligned_le32(&buffer[length - 4]);
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
vif = wilc_get_vif_from_idx(wilc, id);
if (!vif)
goto out;
@@ -1606,7 +1607,7 @@ void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
kfree(msg);
}
out:
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
}
void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
@@ -1614,13 +1615,14 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
struct host_if_drv *hif_drv;
struct host_if_msg *msg;
struct wilc_vif *vif;
+ int srcu_idx;
int result;
int id;
mutex_lock(&wilc->deinit_lock);
id = get_unaligned_le32(&buffer[length - 4]);
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
vif = wilc_get_vif_from_idx(wilc, id);
if (!vif)
goto out;
@@ -1647,7 +1649,7 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
kfree(msg);
}
out:
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
mutex_unlock(&wilc->deinit_lock);
}
@@ -1655,11 +1657,12 @@ void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
{
struct host_if_drv *hif_drv;
struct wilc_vif *vif;
+ int srcu_idx;
int result;
int id;
id = get_unaligned_le32(&buffer[length - 4]);
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
vif = wilc_get_vif_from_idx(wilc, id);
if (!vif)
goto out;
@@ -1684,7 +1687,7 @@ void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
}
}
out:
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
}
int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie, u16 chan,
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c
index 73f56f7b002b..710e29bea560 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.c
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.c
@@ -127,28 +127,30 @@ void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid,
int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
{
+ int srcu_idx;
u8 ret_val = 0;
struct wilc_vif *vif;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_for_each_vif(wilc, vif) {
if (!is_zero_ether_addr(vif->bssid))
ret_val++;
}
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
return ret_val;
}
static void wilc_wake_tx_queues(struct wilc *wl)
{
+ int srcu_idx;
struct wilc_vif *ifc;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
wilc_for_each_vif(wl, ifc) {
if (ifc->mac_opened && netif_queue_stopped(ifc->ndev))
netif_wake_queue(ifc->ndev);
}
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
}
static int wilc_txq_task(void *vp)
@@ -653,6 +655,7 @@ static int wilc_set_mac_addr(struct net_device *dev, void *p)
struct sockaddr *addr = (struct sockaddr *)p;
unsigned char mac_addr[ETH_ALEN];
struct wilc_vif *tmp_vif;
+ int srcu_idx;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
@@ -664,19 +667,19 @@ static int wilc_set_mac_addr(struct net_device *dev, void *p)
/* Verify MAC Address is not already in use: */
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_for_each_vif(wilc, tmp_vif) {
wilc_get_mac_address(tmp_vif, mac_addr);
if (ether_addr_equal(addr->sa_data, mac_addr)) {
if (vif != tmp_vif) {
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
return -EADDRNOTAVAIL;
}
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
return 0;
}
}
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
result = wilc_set_mac_address(vif, (u8 *)addr->sa_data);
if (result)
@@ -764,14 +767,15 @@ netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
wilc_tx_complete);
if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
+ int srcu_idx;
struct wilc_vif *vif;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_for_each_vif(wilc, vif) {
if (vif->mac_opened)
netif_stop_queue(vif->ndev);
}
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
}
return NETDEV_TX_OK;
@@ -815,12 +819,13 @@ void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
unsigned int frame_len = 0;
struct wilc_vif *vif;
struct sk_buff *skb;
+ int srcu_idx;
int stats;
if (!wilc)
return;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_netdev = get_if_handler(wilc, buff);
if (!wilc_netdev)
goto out;
@@ -848,14 +853,15 @@ void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
}
out:
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
}
void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth)
{
+ int srcu_idx;
struct wilc_vif *vif;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_for_each_vif(wilc, vif) {
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buff;
u16 type = le16_to_cpup((__le16 *)buff);
@@ -876,7 +882,7 @@ void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth)
if (vif->monitor_flag)
wilc_wfi_monitor_rx(wilc->monitor_dev, buff, size);
}
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
}
static const struct net_device_ops wilc_netdev_ops = {
@@ -906,7 +912,7 @@ void wilc_netdev_cleanup(struct wilc *wilc)
list_del_rcu(&vif->list);
wilc->vif_num--;
mutex_unlock(&wilc->vif_mutex);
- synchronize_rcu();
+ synchronize_srcu(&wilc->srcu);
if (vif->ndev)
unregister_netdev(vif->ndev);
}
@@ -925,15 +931,16 @@ static u8 wilc_get_available_idx(struct wilc *wl)
{
int idx = 0;
struct wilc_vif *vif;
+ int srcu_idx;
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wl->srcu);
wilc_for_each_vif(wl, vif) {
if (vif->idx == 0)
idx = 1;
else
idx = 0;
}
- rcu_read_unlock();
+ srcu_read_unlock(&wl->srcu, srcu_idx);
return idx;
}
@@ -983,7 +990,7 @@ struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name,
list_add_tail_rcu(&vif->list, &wl->vif_list);
wl->vif_num += 1;
mutex_unlock(&wl->vif_mutex);
- synchronize_rcu();
+ synchronize_srcu(&wl->srcu);
return vif;
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h
index eecee3973d6a..5937d6d45695 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.h
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.h
@@ -32,8 +32,8 @@
#define wilc_for_each_vif(w, v) \
struct wilc *_w = w; \
- list_for_each_entry_rcu(v, &_w->vif_list, list, \
- rcu_read_lock_held())
+ list_for_each_entry_srcu(v, &_w->vif_list, list, \
+ srcu_read_lock_held(&_w->srcu))
struct wilc_wfi_stats {
unsigned long rx_packets;
@@ -220,6 +220,7 @@ struct wilc {
/* protect vif list */
struct mutex vif_mutex;
+ struct srcu_struct srcu;
u8 open_ifcs;
/* protect head of transmit queue */
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index 37c32d17856e..a9e872a7b2c3 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -712,6 +712,7 @@ int wilc_wlan_handle_txq(struct wilc *wilc, u32 *txq_count)
u32 *vmm_table = wilc->vmm_table;
u8 ac_pkt_num_to_chip[NQUEUES] = {0, 0, 0, 0};
const struct wilc_hif_func *func;
+ int srcu_idx;
u8 *txb = wilc->tx_buffer;
struct wilc_vif *vif;
@@ -723,10 +724,10 @@ int wilc_wlan_handle_txq(struct wilc *wilc, u32 *txq_count)
mutex_lock(&wilc->txq_add_to_head_cs);
- rcu_read_lock();
+ srcu_idx = srcu_read_lock(&wilc->srcu);
wilc_for_each_vif(wilc, vif)
wilc_wlan_txq_filter_dup_tcp_ack(vif->ndev);
- rcu_read_unlock();
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
for (ac = 0; ac < NQUEUES; ac++)
tqe_q[ac] = wilc_wlan_txq_get_first(wilc, ac);
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-31 06:04:07 +0300