net: use %px to print skb address in trace_netif_receive_skb

The print format of skb adress in tracepoint class net_dev_template
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 <[email protected]>
Signed-off-by: Qitao Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Qitao Xu

include/trace/events/net.h

@@ -136,7 +136,7 @@ DECLARE_EVENT_CLASS(net_dev_template,
 		__assign_str(name, skb->dev->name);
 	),
 
-	TP_printk("dev=%s skbaddr=%p len=%u",
+	TP_printk("dev=%s skbaddr=%px len=%u",
 		__get_str(name), __entry->skbaddr, __entry->len)
 )