mac80211: allow out-of-band EOSP notification

iwlwifi has a separate EOSP notification from
the device, and to make use of that properly
it needs to be passed to mac80211. To be able
to mix with tx_status_irqsafe and rx_irqsafe
it also needs to be an "_irqsafe" version in
the sense that it goes through the tasklet,
the actual flag clearing would be IRQ-safe
but doing it directly would cause reordering
issues.

This is needed in the case of a P2P GO going
into an absence period without transmitting
any frames that should be driver-released as
in this case there's no other way to inform
mac80211 that the service period ended. Note
that for drivers that don't use the _irqsafe
functions another version of this function
will be required.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index aef08969e353..2af4fca55337 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -1498,6 +1498,28 @@ TRACE_EVENT(api_enable_rssi_reports,
         )
 );
 
+TRACE_EVENT(api_eosp,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sta *sta),
+
+        TP_ARGS(local, sta),
+
+        TP_STRUCT__entry(
+                LOCAL_ENTRY
+                STA_ENTRY
+        ),
+
+        TP_fast_assign(
+                LOCAL_ASSIGN;
+                STA_ASSIGN;
+        ),
+
+        TP_printk(
+                LOCAL_PR_FMT STA_PR_FMT,
+                LOCAL_PR_ARG, STA_PR_FMT
+        )
+);
+
 /*
  * Tracing for internal functions
  * (which may also be called in response to driver calls)