cfg80211: allow mgmt_frame_register callback to sleep
This callback is currently not allowed to sleep, which makes it more
difficult to implement proper driver methods in mac80211 than it has
to be. Instead of doing asynchronous work here in mac80211, make it
possible for the callback to sleep by doing some asynchronous work
in cfg80211. This also enables improvements to other drivers, like
ath6kl, that would like to sleep in this callback.
While at it, also fix the code to call the driver on the implicit
unregistration when an interface is removed, and do that also when
a P2P-Device wdev is destroyed (otherwise we leak the structs.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index c6e83a7..c23516d 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -733,6 +733,8 @@
rdev_mgmt_frame_register(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, u16 frame_type, bool reg)
{
+ might_sleep();
+
trace_rdev_mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
rdev->ops->mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
trace_rdev_return_void(&rdev->wiphy);