commit 9a774c78e2114c7e8605e3a168ccd552cbe3d922
author Andrei Otcheretianski <andrei.otcheretianski@intel.com> Fri May 09 14:11:46 2014 +0300
committer Johannes Berg <johannes.berg@intel.com> Thu May 15 15:00:42 2014 +0200
tree d1ba64609c6fc1b0b7609630635ee66c601e30cc
parent 387910cc79da2e529f2fb4ca9428e861b9402975

cfg80211: Support multiple CSA counters

Change the type of NL80211_ATTR_CSA_C_OFF_BEACON and
NL80211_ATTR_CSA_C_OFF_PRESP to be NLA_BINARY which allows
userspace to use beacons and probe responses with
multiple CSA counters.
This isn't breaking the API since userspace can
continue to use nla_put_u16 for this attributes, which
is equivalent to a single element u16 array.
In addition advertise max number of supported CSA counters.
This is needed when using CSA and eCSA IEs together.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/trace.h

diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index cdfbb00..560ed77 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1876,29 +1876,33 @@
 		WIPHY_ENTRY
 		NETDEV_ENTRY
 		CHAN_DEF_ENTRY
-		__field(u16, counter_offset_beacon)
-		__field(u16, counter_offset_presp)
 		__field(bool, radar_required)
 		__field(bool, block_tx)
 		__field(u8, count)
+		__dynamic_array(u16, bcn_ofs, params->n_counter_offsets_beacon)
+		__dynamic_array(u16, pres_ofs, params->n_counter_offsets_presp)
 	),
 	TP_fast_assign(
 		WIPHY_ASSIGN;
 		NETDEV_ASSIGN;
 		CHAN_DEF_ASSIGN(&params->chandef);
-		__entry->counter_offset_beacon = params->counter_offset_beacon;
-		__entry->counter_offset_presp = params->counter_offset_presp;
 		__entry->radar_required = params->radar_required;
 		__entry->block_tx = params->block_tx;
 		__entry->count = params->count;
+		memcpy(__get_dynamic_array(bcn_ofs),
+		       params->counter_offsets_beacon,
+		       params->n_counter_offsets_beacon * sizeof(u16));
+
+		/* probe response offsets are optional */
+		if (params->n_counter_offsets_presp)
+			memcpy(__get_dynamic_array(pres_ofs),
+			       params->counter_offsets_presp,
+			       params->n_counter_offsets_presp * sizeof(u16));
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT
-		  ", block_tx: %d, count: %u, radar_required: %d"
-		  ", counter offsets (beacon/presp): %u/%u",
+		  ", block_tx: %d, count: %u, radar_required: %d",
 		  WIPHY_PR_ARG, NETDEV_PR_ARG, CHAN_DEF_PR_ARG,
-		  __entry->block_tx, __entry->count, __entry->radar_required,
-		  __entry->counter_offset_beacon,
-		  __entry->counter_offset_presp)
+		  __entry->block_tx, __entry->count, __entry->radar_required)
 );
 
 TRACE_EVENT(rdev_set_qos_map,