Re: [RFC v3 net-next 1/7] net: add rx_sk to trace_kfree_skb

From: David Ahern
Date: Fri Jun 07 2024 - 10:29:24 EST


On 6/6/24 9:37 AM, Yan Zhai wrote:
> # cat /sys/kernel/debug/tracing/events/skb/kfree_skb/format
> name: kfree_skb
> ID: 2260
> 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:void * location; offset:16; size:8; signed:0;
> field:unsigned short protocol; offset:24; size:2; signed:0;
> field:enum skb_drop_reason reason; offset:28;
> size:4; signed:0;
> field:void * rx_skaddr; offset:32; size:8; signed:0;
>
> Do you think we still need to change the order?
>

yes. Keeping proper order now ensures no holes creep in with later changes.