[PATCH wpan-next 3/3] ieee802154: Trace the registration of new PANs

From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Alexander Aring <alex.aring@gmail.com>,
	Stefan Schmidt <stefan@datenfreihafen.org>,
	linux-wpan@vger.kernel.org
Cc: David Girault <david.girault@qorvo.com>,
	Romuald Despres <romuald.despres@qorvo.com>,
	Frederic Blain <frederic.blain@qorvo.com>,
	Nicolas Schodet <nico@ni.fr.eu.org>,
	Guilhem Imberton <guilhem.imberton@qorvo.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Eric Dumazet <edumazet@google.com>,
	netdev@vger.kernel.org, Miquel Raynal <miquel.raynal@bootlin.com>
Subject: [PATCH wpan-next 3/3] ieee802154: Trace the registration of new PANs
Date: Wed,  2 Nov 2022 16:19:15 +0100	[thread overview]
Message-ID: <20221102151915.1007815-4-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20221102151915.1007815-1-miquel.raynal@bootlin.com>

From: David Girault <david.girault@qorvo.com>

Add an internal trace when new PANs get discovered.

Signed-off-by: David Girault <david.girault@qorvo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 net/ieee802154/pan.c   |  2 ++
 net/ieee802154/trace.h | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/net/ieee802154/pan.c b/net/ieee802154/pan.c
index 0d4f752a090a..b41fe173edd3 100644
--- a/net/ieee802154/pan.c
+++ b/net/ieee802154/pan.c
@@ -18,6 +18,7 @@
 
 #include "ieee802154.h"
 #include "../ieee802154/nl802154.h"
+#include "trace.h"
 
 struct ieee802154_coord_desc *
 cfg802154_alloc_coordinator(struct ieee802154_addr *coord, gfp_t gfp)
@@ -91,6 +92,7 @@ void cfg802154_record_coordinator(struct wpan_phy *wpan_phy,
 		cfg802154_free_coordinator_desc(desc);
 	} else {
 		list_add_tail(&desc->node, &wpan_dev->coord_list);
+		trace_802154_new_coordinator(desc);
 		nl802154_advertise_new_coordinator(wpan_phy, wpan_dev, desc);
 	}
 
diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h
index 19c2e5d60e76..03b3817c34ad 100644
--- a/net/ieee802154/trace.h
+++ b/net/ieee802154/trace.h
@@ -295,6 +295,31 @@ TRACE_EVENT(802154_rdev_set_ackreq_default,
 		WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->ackreq))
 );
 
+DECLARE_EVENT_CLASS(802154_new_coordinator_evt,
+	TP_PROTO(struct ieee802154_coord_desc *desc),
+	TP_ARGS(desc),
+	TP_STRUCT__entry(
+		__field(__le16, pan_id)
+		__field(__le64, addr)
+		__field(u8, channel)
+		__field(u8, page)
+	),
+	TP_fast_assign(
+		__entry->page = desc->page;
+		__entry->channel = desc->channel;
+		__entry->pan_id = desc->addr->pan_id;
+		__entry->addr = desc->addr->extended_addr;
+	),
+	TP_printk("panid: %u, coord_addr: 0x%llx, page: %u, channel: %u",
+		  __le16_to_cpu(__entry->pan_id), __le64_to_cpu(__entry->addr),
+		  __entry->page, __entry->channel)
+);
+
+DEFINE_EVENT(802154_new_coordinator_evt, 802154_new_coordinator,
+	TP_PROTO(struct ieee802154_coord_desc *desc),
+	TP_ARGS(desc)
+);
+
 TRACE_EVENT(802154_rdev_return_int,
 	TP_PROTO(struct wpan_phy *wpan_phy, int ret),
 	TP_ARGS(wpan_phy, ret),
-- 
2.34.1

