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Commit eeb126e9 authored by Johannes Berg's avatar Johannes Berg
Browse files

cfg80211: add tracing for P2P Device start/stop 



These were missed due to the tracing work having
started on a kernel that didn't have P2P Device
yet, implement them now.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 5d0d04e4

net/wireless/core.c

+2 −2
Original line number Diff line number Diff line
@@ -241,7 +241,7 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked) 
		case NL80211_IFTYPE_P2P_DEVICE:

			if (!wdev->p2p_started)

				break;

			rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);

			rdev_stop_p2p_device(rdev, wdev);

			wdev->p2p_started = false;

			rdev->opencount--;

			break;
@@ -774,7 +774,7 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev) 
	case NL80211_IFTYPE_P2P_DEVICE:

		if (!wdev->p2p_started)

			break;

		rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);

		rdev_stop_p2p_device(rdev, wdev);

		wdev->p2p_started = false;

		rdev->opencount--;

		break;

net/wireless/nl80211.c

+2 −2
Original line number Diff line number Diff line
@@ -6932,7 +6932,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) 
	if (err)

		return err;



	err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);

	err = rdev_start_p2p_device(rdev, wdev);

	if (err)

		return err;
@@ -6958,7 +6958,7 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) 
	if (!wdev->p2p_started)

		return 0;



	rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);

	rdev_stop_p2p_device(rdev, wdev);

	wdev->p2p_started = false;



	mutex_lock(&rdev->devlist_mtx);

net/wireless/rdev-ops.h

+18 −0
Original line number Diff line number Diff line
@@ -858,4 +858,22 @@ static inline struct ieee80211_channel 
	return ret;

}



static inline int rdev_start_p2p_device(struct cfg80211_registered_device *rdev,

					struct wireless_dev *wdev)

{

	int ret;



	trace_rdev_start_p2p_device(&rdev->wiphy, wdev);

	ret = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);

	trace_rdev_return_int(&rdev->wiphy, ret);

	return ret;

}



static inline void rdev_stop_p2p_device(struct cfg80211_registered_device *rdev,

					struct wireless_dev *wdev)

{

	trace_rdev_stop_p2p_device(&rdev->wiphy, wdev);

	rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);

	trace_rdev_return_void(&rdev->wiphy);

}					

#endif /* __CFG80211_RDEV_OPS */

net/wireless/trace.h

+10 −0
Original line number Diff line number Diff line
@@ -1741,6 +1741,16 @@ TRACE_EVENT(rdev_return_channel, 
		  WIPHY_PR_ARG, CHAN_PR_ARG, __entry->type)

);



DEFINE_EVENT(wiphy_wdev_evt, rdev_start_p2p_device,

	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),

	TP_ARGS(wiphy, wdev)

);



DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_p2p_device,

	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),

	TP_ARGS(wiphy, wdev)

);



/*************************************************************

 *	     cfg80211 exported functions traces		     *

 *************************************************************/