diff options
| author | Alison Schofield <amsfield22@gmail.com> | 2016-03-14 10:34:14 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-28 07:30:36 -0700 |
| commit | e0c1496fcf6a1bbc9b827e763f58535585b249d5 (patch) | |
| tree | fd262f6c2226cfe8d3f692097af3942696b1f218 /drivers/staging/wilc1000 | |
| parent | 1b7c69e84bcea7a8054b44e6671e7b9ad758c2d8 (diff) | |
| download | op-kernel-dev-e0c1496fcf6a1bbc9b827e763f58535585b249d5.zip op-kernel-dev-e0c1496fcf6a1bbc9b827e763f58535585b249d5.tar.gz | |
staging: wilc1000: replace semaphore sem_inactive_time with a completion
Semaphore sem_inactive_time is used to signal completion of its host
interface message. Since the thread locking this semaphore will have
to wait, completions are the preferred mechanism and will offer a
performance improvement.
Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wilc1000')
| -rw-r--r-- | drivers/staging/wilc1000/host_interface.c | 7 | ||||
| -rw-r--r-- | drivers/staging/wilc1000/host_interface.h | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index e73ee89..2f14370 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2,6 +2,7 @@ #include <linux/time.h> #include <linux/kthread.h> #include <linux/delay.h> +#include <linux/completion.h> #include "host_interface.h" #include "coreconfigurator.h" #include "wilc_wlan.h" @@ -1979,7 +1980,7 @@ static s32 Handle_Get_InActiveTime(struct wilc_vif *vif, return -EFAULT; } - up(&hif_drv->sem_inactive_time); + complete(&hif_drv->comp_inactive_time); return result; } @@ -3220,7 +3221,7 @@ s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac, if (result) netdev_err(vif->ndev, "Failed to send get host ch param\n"); - down(&hif_drv->sem_inactive_time); + wait_for_completion(&hif_drv->comp_inactive_time); *pu32InactiveTime = inactive_time; @@ -3407,7 +3408,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) sema_init(&hif_drv->sem_test_key_block, 0); sema_init(&hif_drv->sem_test_disconn_block, 0); sema_init(&hif_drv->sem_get_rssi, 0); - sema_init(&hif_drv->sem_inactive_time, 0); + init_completion(&hif_drv->comp_inactive_time); if (clients_count == 0) { result = wilc_mq_create(&hif_msg_q); diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index 01f3222..68852b3 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -278,7 +278,7 @@ struct host_if_drv { struct semaphore sem_test_key_block; struct semaphore sem_test_disconn_block; struct semaphore sem_get_rssi; - struct semaphore sem_inactive_time; + struct completion comp_inactive_time; struct timer_list scan_timer; struct timer_list connect_timer; |
