diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2020-11-01 22:15:30 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-11-07 17:52:18 +0200 |
| commit | 24bf941f2c96d889df8b892adae25c68b6678787 (patch) | |
| tree | 4e91a1636d9417182ef62381adcddb63854ff4e1 /drivers/net/wireless/cisco/airo.c | |
| parent | ce4dd05cbba697c748d9b665bd05467910318811 (diff) | |
| download | linux-24bf941f2c96d889df8b892adae25c68b6678787.tar.bz2 | |
airo: Invoke airo_read_wireless_stats() directly
airo_get_wireless_stats() is the iw_handler_if::get_wireless_stats()
callback of this driver. This callback was not allowed to sleep until
commit a160ee69c6a46 ("wext: let get_wireless_stats() sleep") in v2.6.32.
airo still delegates the readout to a thread, which is not longer
necessary.
Invoke airo_read_wireless_stats() directly from the callback and remove
the now unused JOB_WSTATS handling.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-3-bigeasy@linutronix.de
Diffstat (limited to 'drivers/net/wireless/cisco/airo.c')
| -rw-r--r-- | drivers/net/wireless/cisco/airo.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c index 87b9398b03fd..ca423f3b6b3e 100644 --- a/drivers/net/wireless/cisco/airo.c +++ b/drivers/net/wireless/cisco/airo.c @@ -1144,7 +1144,6 @@ static int airo_thread(void *data); static void timer_func(struct net_device *dev); static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev); -static void airo_read_wireless_stats(struct airo_info *local); #ifdef CISCO_EXT static int readrids(struct net_device *dev, aironet_ioctl *comp); static int writerids(struct net_device *dev, aironet_ioctl *comp); @@ -1200,7 +1199,6 @@ struct airo_info { #define JOB_MIC 5 #define JOB_EVENT 6 #define JOB_AUTOWEP 7 -#define JOB_WSTATS 8 #define JOB_SCAN_RESULTS 9 unsigned long jobs; int (*bap_read)(struct airo_info*, __le16 *pu16Dst, int bytelen, @@ -3155,8 +3153,6 @@ static int airo_thread(void *data) airo_end_xmit11(dev); else if (test_bit(JOB_STATS, &ai->jobs)) airo_read_stats(dev); - else if (test_bit(JOB_WSTATS, &ai->jobs)) - airo_read_wireless_stats(ai); else if (test_bit(JOB_PROMISC, &ai->jobs)) airo_set_promisc(ai); else if (test_bit(JOB_MIC, &ai->jobs)) @@ -7732,15 +7728,12 @@ static void airo_read_wireless_stats(struct airo_info *local) __le32 *vals = stats_rid.vals; /* Get stats out of the card */ - clear_bit(JOB_WSTATS, &local->jobs); - if (local->power.event) { - up(&local->sem); + if (local->power.event) return; - } + readCapabilityRid(local, &cap_rid, 0); readStatusRid(local, &status_rid, 0); readStatsRid(local, &stats_rid, RID_STATS, 0); - up(&local->sem); /* The status */ local->wstats.status = le16_to_cpu(status_rid.mode); @@ -7783,15 +7776,10 @@ static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev) { struct airo_info *local = dev->ml_priv; - if (!test_bit(JOB_WSTATS, &local->jobs)) { - /* Get stats out of the card if available */ - if (down_trylock(&local->sem) != 0) { - set_bit(JOB_WSTATS, &local->jobs); - wake_up_interruptible(&local->thr_wait); - } else - airo_read_wireless_stats(local); + if (!down_interruptible(&local->sem)) { + airo_read_wireless_stats(local); + up(&local->sem); } - return &local->wstats; } |