On Mon, 9 Feb 2015 19:45:57 -0800 Alexei Starovoitov <ast@xxxxxxxxxxxx> wrote: > +static void print_netif_receive_skb(void *data, int size) > +{ > + struct ftrace_raw_netif_receive_skb { > + struct trace_entry t; > + void *skb; > + __u32 len; > + __u32 name; > + } *e = data; Same here, there's no guarantee that this structure will always match. cat /sys/kernel/debug/tracing/events/net/netif_receive_skb/format name: netif_receive_skb ID: 975 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:void * skbaddr; offset:8; size:8; signed:0; field:unsigned int len; offset:16; size:4; signed:0; field:__data_loc char[] name; offset:20; size:4; signed:1; print fmt: "dev=%s skbaddr=%p len=%u", __get_str(name), REC->skbaddr, REC->len -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html