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 <bige...@linutronix.de>
Cc: Kalle Valo <kv...@codeaurora.org>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Jakub Kicinski <k...@kernel.org>
Cc: linux-wirel...@vger.kernel.org
Cc: net...@vger.kernel.org
---
drivers/net/wireless/cisco/airo.c | 22 +++++-----------------
1 file changed, 5 insertions(+), 17 deletions(-)
diff --git a/drivers/net/wireless/cisco/airo.c
b/drivers/net/wireless/cisco/airo.c
index 87b9398b03fd4..ca423f3b6b3ea 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;
}
--
2.28.0
