2021-04-23 18:33:21

by Ajay Singh

[permalink] [raw]
Subject: [PATCH 01/12] wilc1000: move 'deinit_lock' lock init/destory inside module probe

From: Ajay Singh <[email protected]>

Move initialization & deinitialization of 'deinit_lock' mutex lock
inside driver init and deinit respectively alongside other locks
initialization. After following changes no need to maintain client count
variable(client_count) just to init/destroy the lock.

Signed-off-by: Ajay Singh <[email protected]>
---
drivers/net/wireless/microchip/wilc1000/cfg80211.c | 2 ++
drivers/net/wireless/microchip/wilc1000/hif.c | 7 -------
drivers/net/wireless/microchip/wilc1000/netdev.h | 1 -
3 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 96973ec7bd9a..530a768547cc 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -1683,6 +1683,7 @@ static void wlan_init_locks(struct wilc *wl)
mutex_init(&wl->rxq_cs);
mutex_init(&wl->cfg_cmd_lock);
mutex_init(&wl->vif_mutex);
+ mutex_init(&wl->deinit_lock);

spin_lock_init(&wl->txq_spinlock);
mutex_init(&wl->txq_add_to_head_cs);
@@ -1701,6 +1702,7 @@ void wlan_deinit_locks(struct wilc *wilc)
mutex_destroy(&wilc->cfg_cmd_lock);
mutex_destroy(&wilc->txq_add_to_head_cs);
mutex_destroy(&wilc->vif_mutex);
+ mutex_destroy(&wilc->deinit_lock);
cleanup_srcu_struct(&wilc->srcu);
}

diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c
index a133736a7821..497a49a182ef 100644
--- a/drivers/net/wireless/microchip/wilc1000/hif.c
+++ b/drivers/net/wireless/microchip/wilc1000/hif.c
@@ -1494,7 +1494,6 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
{
struct host_if_drv *hif_drv;
struct wilc_vif *vif = netdev_priv(dev);
- struct wilc *wilc = vif->wilc;

hif_drv = kzalloc(sizeof(*hif_drv), GFP_KERNEL);
if (!hif_drv)
@@ -1504,9 +1503,6 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)

vif->hif_drv = hif_drv;

- if (wilc->clients_count == 0)
- mutex_init(&wilc->deinit_lock);
-
timer_setup(&vif->periodic_rssi, get_periodic_rssi, 0);
mod_timer(&vif->periodic_rssi, jiffies + msecs_to_jiffies(5000));

@@ -1518,8 +1514,6 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)

hif_drv->p2p_timeout = 0;

- wilc->clients_count++;
-
return 0;
}

@@ -1550,7 +1544,6 @@ int wilc_deinit(struct wilc_vif *vif)

kfree(hif_drv);
vif->hif_drv = NULL;
- vif->wilc->clients_count--;
mutex_unlock(&vif->wilc->deinit_lock);
return result;
}
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h
index 86209b391a3d..a39c62a20f04 100644
--- a/drivers/net/wireless/microchip/wilc1000/netdev.h
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.h
@@ -264,7 +264,6 @@ struct wilc {
struct device *dev;
bool suspend_event;

- int clients_count;
struct workqueue_struct *hif_workqueue;
enum chip_ps_states chip_ps_state;
struct wilc_cfg cfg;
--
2.24.0