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Subject[PATCH 3.5 28/62] perf tools: Fix cache event name generation
Date
3.5.7.32 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jiri Olsa <jolsa@redhat.com>

commit 275ef3878f698941353780440fec6926107a320b upstream.

If the event name is specified with all 3 components, the last one
overwrites the previous one during the name composing within the
parse_events_add_cache function.

Fixing this by properly adjusting the string index.

Reported-by: Joel Uckelman <joel@lightboxtechnologies.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Joel Uckelman <joel@lightboxtechnologies.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LPU-Reference: 20120905175133.GA18352@krava.brq.redhat.com
[ committer note: Remove the newline fix, done already in 42e1fb7 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Vinson Lee <vlee@twopensource.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
tools/perf/util/parse-events.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d2006bd..5f99cec 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -420,7 +420,7 @@ int parse_events_add_cache(struct list_head **list, int *idx,
for (i = 0; (i < 2) && (op_result[i]); i++) {
char *str = op_result[i];

- snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
+ n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);

if (cache_op == -1) {
cache_op = parse_aliases(str, hw_cache_op,
--
1.9.0


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