[ 3.8.y.z extended stable ] Patch "perf: net_dropmonitor: Fix symbol-relative addresses" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    perf: net_dropmonitor: Fix symbol-relative addresses

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.2.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From bab45edb2a392a3edc0b9ad35e90369fa5f9dcd8 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben at decadent.org.uk>
Date: Mon, 20 May 2013 14:45:26 +0000
Subject: perf: net_dropmonitor: Fix symbol-relative addresses

commit 5a1e99dd2028e00998d42029be86835d8ef4a46e upstream.

The comparison between traced and symbol addresses is backwards: if
the traced address doesn't exactly match a symbol (which we don't
expect it to), we'll show the next symbol and the offset to it,
whereas we should show the previous symbol and the offset from it.

Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 tools/perf/scripts/python/net_dropmonitor.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index adbfbf0..4c11605 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -40,9 +40,9 @@ def get_kallsyms_table():

 def get_sym(sloc):
 	loc = int(sloc)
-	for i in kallsyms:
-		if (i['loc'] >= loc):
-			return (i['name'], i['loc']-loc)
+	for i in kallsyms[::-1]:
+		if loc >= i['loc']:
+			return (i['name'], loc - i['loc'])
 	return (None, 0)

 def print_drop_table():
--
1.8.1.2