* [PATCH] ath6kl: don't power down hardware when interface is down
@ 2011-11-03 9:53 Kalle Valo
2011-11-03 16:56 ` Kalle Valo
0 siblings, 1 reply; 2+ messages in thread
From: Kalle Valo @ 2011-11-03 9:53 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
Jouni reported that my patch "ath6kl: power down hardware when interface
is down" caused a regression on his x86 boxes and scan didn't work anymore.
I was able to reproduce the problem by disabling all debug messages.
So there has to be a race condition somewhere in the code and disable the
functionality until the race is fixed. Now hardware is powered from the
point where module is loaded until it's removed.
Reported-by: Jouni Malinen <jouni@qca.qualcomm.com>
Tested-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/init.c | 6 ------
drivers/net/wireless/ath/ath6kl/main.c | 12 ------------
2 files changed, 0 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 909e2e9..363fb3d 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1612,12 +1612,6 @@ int ath6kl_core_init(struct ath6kl *ar)
*/
memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
- ret = ath6kl_init_hw_stop(ar);
- if (ret) {
- ath6kl_err("Failed to stop hardware: %d\n", ret);
- goto err_htc_cleanup;
- }
-
return ret;
err_rxbuf_cleanup:
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index f9410e4..021b2f6 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -1062,12 +1062,6 @@ struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
static int ath6kl_open(struct net_device *dev)
{
struct ath6kl_vif *vif = netdev_priv(dev);
- int ret;
-
- /* FIXME: how to handle multi vif support? */
- ret = ath6kl_init_hw_start(vif->ar);
- if (ret)
- return ret;
set_bit(WLAN_ENABLED, &vif->flags);
@@ -1084,7 +1078,6 @@ static int ath6kl_close(struct net_device *dev)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
- int ret;
netif_stop_queue(dev);
@@ -1099,11 +1092,6 @@ static int ath6kl_close(struct net_device *dev)
ath6kl_cfg80211_scan_complete_event(vif, true);
- /* FIXME: how to handle multi vif support? */
- ret = ath6kl_init_hw_stop(ar);
- if (ret)
- return ret;
-
clear_bit(WLAN_ENABLED, &vif->flags);
return 0;
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ath6kl: don't power down hardware when interface is down
2011-11-03 9:53 [PATCH] ath6kl: don't power down hardware when interface is down Kalle Valo
@ 2011-11-03 16:56 ` Kalle Valo
0 siblings, 0 replies; 2+ messages in thread
From: Kalle Valo @ 2011-11-03 16:56 UTC (permalink / raw)
To: Kalle Valo; +Cc: linux-wireless
On 11/03/2011 11:53 AM, Kalle Valo wrote:
> Jouni reported that my patch "ath6kl: power down hardware when interface
> is down" caused a regression on his x86 boxes and scan didn't work anymore.
> I was able to reproduce the problem by disabling all debug messages.
>
> So there has to be a race condition somewhere in the code and disable the
> functionality until the race is fixed. Now hardware is powered from the
> point where module is loaded until it's removed.
Applied.
Kalle
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-11-03 16:56 UTC | newest]
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