diff mbox series

[net-next,v2] net_sched: use %px to print skb address in trace_qdisc_dequeue()

Message ID 20210711183234.7889-2-xiyou.wangcong@gmail.com
State Superseded
Headers show
Series [net-next,v2] net_sched: use %px to print skb address in trace_qdisc_dequeue() | expand

Commit Message

Cong Wang July 11, 2021, 6:32 p.m. UTC 
From: Qitao Xu <qitao.xu@bytedance.com>

Print format of skbaddr is changed to %px from %p, because we want
to use skb address as a quick way to identify a packet.

Note, trace ring buffer is only accessible to privileged users,
it is safe to use a real kernel address here.

Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Qitao Xu <qitao.xu@bytedance.com>
---
 include/trace/events/qdisc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/trace/events/qdisc.h b/include/trace/events/qdisc.h
index 330d32d84485..58209557cb3a 100644
--- a/include/trace/events/qdisc.h
+++ b/include/trace/events/qdisc.h
@@ -41,7 +41,7 @@  TRACE_EVENT(qdisc_dequeue,
 		__entry->txq_state	= txq->state;
 	),
 
-	TP_printk("dequeue ifindex=%d qdisc handle=0x%X parent=0x%X txq_state=0x%lX packets=%d skbaddr=%p",
+	TP_printk("dequeue ifindex=%d qdisc handle=0x%X parent=0x%X txq_state=0x%lX packets=%d skbaddr=%px",
 		  __entry->ifindex, __entry->handle, __entry->parent,
 		  __entry->txq_state, __entry->packets, __entry->skbaddr )
 );