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Date: Fri, 24 Jun 2022 00:09:16 -0600
From: Subash Abhinov Kasiviswanathan <quic_subashab@...cinc.com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
<pabeni@...hat.com>, <netdev@...r.kernel.org>,
<quic_jzenner@...cinc.com>, <cong.wang@...edance.com>,
<qitao.xu@...edance.com>
CC: Subash Abhinov Kasiviswanathan <quic_subashab@...cinc.com>,
"Sean Tranchetti" <quic_stranche@...cinc.com>
Subject: [PATCH net-next] net: Print real skb addresses for all net events
Commit 65875073eddd ("net: use %px to print skb address in trace_netif_receive_skb")
added support for printing the real addresses for the events using
net_dev_template.
However, tracing the packet traversal shows a mix of hashes and real
addresses. Pasting a sample trace for reference-
ping-14249 [002] ..... 3424.046612: netif_rx_entry: dev=lo napi_id=0x3 queue_mapping=0
skbaddr=00000000dcbed83e vlan_tagged=0 vlan_proto=0x0000 vlan_tci=0x0000 protocol=0x0800
ip_summed=0 hash=0x00000000 l4_hash=0 len=84 data_len=0 truesize=768 mac_header_valid=1
mac_header=-14 nr_frags=0 gso_size=0 gso_type=0x0
ping-14249 [002] ..... 3424.046615: netif_rx: dev=lo skbaddr=ffffff888e5d1000 len=84
Switch the trace print formats to %px for all the events to have a
consistent format of printing the real addresses in all cases.
Signed-off-by: Sean Tranchetti <quic_stranche@...cinc.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <quic_subashab@...cinc.com>
---
include/trace/events/net.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 032b431..2651350 100644
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -58,7 +58,7 @@ TRACE_EVENT(net_dev_start_xmit,
__entry->gso_type = skb_shinfo(skb)->gso_type;
),
- TP_printk("dev=%s queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x",
+ TP_printk("dev=%s queue_mapping=%u skbaddr=%px vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x",
__get_str(name), __entry->queue_mapping, __entry->skbaddr,
__entry->vlan_tagged, __entry->vlan_proto, __entry->vlan_tci,
__entry->protocol, __entry->ip_summed, __entry->len,
@@ -91,7 +91,7 @@ TRACE_EVENT(net_dev_xmit,
__assign_str(name, dev->name);
),
- TP_printk("dev=%s skbaddr=%p len=%u rc=%d",
+ TP_printk("dev=%s skbaddr=%px len=%u rc=%d",
__get_str(name), __entry->skbaddr, __entry->len, __entry->rc)
);
@@ -215,7 +215,7 @@ DECLARE_EVENT_CLASS(net_dev_rx_verbose_template,
__entry->gso_type = skb_shinfo(skb)->gso_type;
),
- TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x",
+ TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%px vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x",
__get_str(name), __entry->napi_id, __entry->queue_mapping,
__entry->skbaddr, __entry->vlan_tagged, __entry->vlan_proto,
__entry->vlan_tci, __entry->protocol, __entry->ip_summed,
--
2.7.4
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