]> git.baikalelectronics.ru Git - kernel.git/commit
net: Print hashed skb addresses for all net and qdisc events
authorSubash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Fri, 24 Jun 2022 21:34:25 +0000 (15:34 -0600)
committerDavid S. Miller <davem@davemloft.net>
Mon, 27 Jun 2022 10:57:06 +0000 (11:57 +0100)
commited3875f7b16ce1b883bdbc53bec1e9fe012e1450
tree52b2aae2c218abf0033f613a233fc9313d543d5d
parent368f0fc4f728d24171ec6d1a34050217e7f197e9
net: Print hashed skb addresses for all net and qdisc events

The following commits added support for printing the real address-
ee739691dc53 ("net: use %px to print skb address in trace_netif_receive_skb")
f1952530daae ("net_sched: introduce tracepoint trace_qdisc_enqueue()")
45bbcd62f4b4 ("net_sched: use %px to print skb address in trace_qdisc_dequeue()")

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 %p for all the events to have a
consistent format of printing the hashed addresses in all cases.

Signed-off-by: Sean Tranchetti <quic_stranche@quicinc.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/trace/events/net.h
include/trace/events/qdisc.h