netdev - [PATCH] ftrace: change the export format of trace_kfree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4A2CD77F.7080609@cn.fujitsu.com>
Date:	Mon, 08 Jun 2009 17:18:55 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	davem@...emloft.net
CC:	LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	mingo@...e.hu, Neil Horman <nhorman@...driver.com>
Subject: [PATCH] ftrace: change the export format of trace_kfree_skb()

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@...fujitsu.com>
---
 include/trace/events/skb.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
 mode change 100644 => 100755 include/trace/events/skb.h

diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
old mode 100644
new mode 100755
index 1e8fabb..a58bef8
--- 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

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html