| Message ID | 1385478446-27868-1-git-send-email-sw@simonwunderlich.de (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Tue, 2013-11-26 at 16:07 +0100, Simon Wunderlich wrote: > The channel switch announcement code has some major locking problems > which can cause a deadlock in worst case. A series of fixes has been > proposed, but these are non-trivial and need to be tested first. > Therefore disable CSA completely for 3.13. > > Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> > --- > This is based on mac80211.git and should go into 3.13 only It didn't apply cleanly so I guess you didn't base it on the latest version, but I picked it up. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/wireless/core.c b/net/wireless/core.c index aff959e..507e71f 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -451,6 +451,12 @@ 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) &&
The channel switch announcement code has some major locking problems which can cause a deadlock in worst case. A series of fixes has been proposed, but these are non-trivial and need to be tested first. Therefore disable CSA completely for 3.13. Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> --- This is based on mac80211.git and should go into 3.13 only --- net/wireless/core.c | 6 ++++++ 1 file changed, 6 insertions(+)