From: tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: namhyung@kernel.org, hpa@zytor.com, tglx@linutronix.de,
acme@redhat.com, jolsa@kernel.org, dsahern@gmail.com,
adrian.hunter@intel.com, linux-kernel@vger.kernel.org,
mingo@kernel.org, wangnan0@huawei.com
Subject: [tip:perf/core] perf symbols: dso->name is an array, no need to check it against NULL
Date: Mon, 13 Feb 2017 22:43:09 -0800 [thread overview]
Message-ID: <tip-x8cu007cly40kfp8xnpi9kya@git.kernel.org> (raw)
Commit-ID: 5eae7d842510d33d4410c062280eda6c935403dd
Gitweb: http://git.kernel.org/tip/5eae7d842510d33d4410c062280eda6c935403dd
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Mon, 13 Feb 2017 17:11:03 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 13 Feb 2017 17:22:35 -0300
perf symbols: dso->name is an array, no need to check it against NULL
As it will always evaluate to 'true', as reported by clang:
util/map.c:390:36: error: address of array 'map->dso->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
if (map && map->dso && (map->dso->name || map->dso->long_name)) {
~~~~~~~~~~^~~~ ~~
util/map.c:393:22: error: address of array 'map->dso->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
else if (map->dso->name)
~~ ~~~~~~~~~~^~~~
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-x8cu007cly40kfp8xnpi9kya@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/map.c | 4 ++--
tools/perf/util/scripting-engines/trace-event-perl.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 4f9a71c..0a943e7 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -387,10 +387,10 @@ size_t map__fprintf_dsoname(struct map *map, FILE *fp)
{
const char *dsoname = "[unknown]";
- if (map && map->dso && (map->dso->name || map->dso->long_name)) {
+ if (map && map->dso) {
if (symbol_conf.show_kernel_path && map->dso->long_name)
dsoname = map->dso->long_name;
- else if (map->dso->name)
+ else
dsoname = map->dso->name;
}
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 014ecd6..c1555fd 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -309,10 +309,10 @@ static SV *perl_process_callchain(struct perf_sample *sample,
if (node->map) {
struct map *map = node->map;
const char *dsoname = "[unknown]";
- if (map && map->dso && (map->dso->name || map->dso->long_name)) {
+ if (map && map->dso) {
if (symbol_conf.show_kernel_path && map->dso->long_name)
dsoname = map->dso->long_name;
- else if (map->dso->name)
+ else
dsoname = map->dso->name;
}
if (!hv_stores(elem, "dso", newSVpv(dsoname,0))) {
reply other threads:[~2017-02-14 6:43 UTC|newest]
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