[PATCH RESEND] ftrace: change the export format of trace_kfree_skb()

Xiao Guangrong
2009-06-09T05:54:27Z

Use %pf instead of %p to output the function's address, use 0x%04X instead
of %u to output the skb's protocol

Before patch:

<idle>-0 [000] 60144.542521: kfree_skb: skbaddr=de7b8240 protocol=2048 location=c1365429
<idle>-0 [000] 60164.488153: kfree_skb: skbaddr=da66f900 protocol=2048 location=c1365429
<idle>-0 [000] 60193.493933: kfree_skb: skbaddr=deaeb480 protocol=4 location=c134ec25
<idle>-0 [000] 60253.118421: kfree_skb: skbaddr=de7c4900 protocol=4 location=c134ec25

After patch:

bash-2587 [001] 97685.781173: kfree_skb: skbaddr=deb9cc00 protocol=0x0000 location=netlink_unicast
bash-2587 [000] 97686.501121: kfree_skb: skbaddr=df9bb840 protocol=0x0000 location=netlink_unicast
<idle>-0 [000] 97696.200184: kfree_skb: skbaddr=df741240 protocol=0x0800 location=ip_rcv
<idle>-0 [000] 97696.200198: kfree_skb: skbaddr=dfb3de40 protocol=0x0800 location=ip_rcv

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---

Recover the file mode of include/trace/events/skb.h

---
include/trace/events/skb.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 1e8fabb..a58bef8 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -30,7 +30,7 @@ TRACE_EVENT(kfree_skb,
__entry->location = location;
),

- TP_printk("skbaddr=%p protocol=%u location=%p",
+ TP_printk("skbaddr=%p protocol=0x%04X location=%pf",
__entry->skbaddr, __entry->protocol, __entry->location)
);

--
1.6.1.2