[PATCH] cfg80211: re-enable CSA for drivers that support it

[PATCH] cfg80211: re-enable CSA for drivers that support it

[Michal Kazior]

This reverts commit dda444d52496aa8ddc501561bca580f1374a96a9.

Channel switching code has been reworked and
improved significantly since the time original
locking issues were found.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
 net/wireless/core.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/net/wireless/core.c b/net/wireless/core.c
index afee5e0..a207eb1 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -492,12 +492,6 @@ int wiphy_register(struct wiphy *wiphy)
 	int i;
 	u16 ifmodes = wiphy->interface_modes;
 
-	/*
-	 * There are major locking problems in nl80211/mac80211 for CSA,
-	 * disable for all drivers until this has been reworked.
-	 */
-	wiphy->flags &= ~WIPHY_FLAG_HAS_CHANNEL_SWITCH;
-
 #ifdef CONFIG_PM
 	if (WARN_ON(wiphy->wowlan &&
 		    (wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
-- 
1.8.5.3

Re: [PATCH] cfg80211: re-enable CSA for drivers that support it

[Johannes Berg]

On Mon, 2014-07-28 at 15:21 +0200, Michal Kazior wrote:
> This reverts commit dda444d52496aa8ddc501561bca580f1374a96a9.
> 
> Channel switching code has been reworked and
> improved significantly since the time original
> locking issues were found.

Applied.

johannes