* [tip: perf/core] perf map: Allow map__next() to receive a NULL arg
[not found] <tip-pbde2ucn49khnrebclys9pny@git.kernel.org>
@ 2019-11-12 11:18 ` tip-bot2 for Arnaldo Carvalho de Melo
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From: tip-bot2 for Arnaldo Carvalho de Melo @ 2019-11-12 11:18 UTC (permalink / raw)
To: linux-tip-commits
Cc: Adrian Hunter, Andi Kleen, Jiri Olsa, Namhyung Kim,
Arnaldo Carvalho de Melo, Ingo Molnar, Borislav Petkov,
linux-kernel
The following commit has been merged into the perf/core branch of tip:
Commit-ID: 20419d3a5bc0a278ed7e2ee54943674004411933
Gitweb: https://git.kernel.org/tip/20419d3a5bc0a278ed7e2ee54943674004411933
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Mon, 28 Oct 2019 11:50:12 -03:00
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitterDate: Wed, 06 Nov 2019 15:43:06 -03:00
perf map: Allow map__next() to receive a NULL arg
Just like free(), return NULL in that case, will simplify the
for_each_entry_safe() iterators.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-pbde2ucn49khnrebclys9pny@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/map.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index c9ba495..86d8d18 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -1007,7 +1007,7 @@ struct map *maps__first(struct maps *maps)
return NULL;
}
-struct map *map__next(struct map *map)
+static struct map *__map__next(struct map *map)
{
struct rb_node *next = rb_next(&map->rb_node);
@@ -1016,6 +1016,11 @@ struct map *map__next(struct map *map)
return NULL;
}
+struct map *map__next(struct map *map)
+{
+ return map ? __map__next(map) : NULL;
+}
+
struct kmap *__map__kmap(struct map *map)
{
if (!map->dso || !map->dso->kernel)
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2019-11-12 11:18 ` [tip: perf/core] perf map: Allow map__next() to receive a NULL arg tip-bot2 for Arnaldo Carvalho de Melo
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