• Subash Abhinov Kasiviswanathan's avatar
    net: Print hashed skb addresses for all net and qdisc events · 6deb209d
    Subash Abhinov Kasiviswanathan authored
    The following commits added support for printing the real address-
    65875073 ("net: use %px to print skb address in trace_netif_receive_skb")
    70713ddd ("net_sched: introduce tracepoint trace_qdisc_enqueue()")
    851f36e4 ("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: default avatarSean Tranchetti <quic_stranche@quicinc.com>
    Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    6deb209d
net.h 7.75 KB