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authorNamhyung Kim <namhyung@kernel.org>2015-12-11 11:56:56 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-12-11 08:38:10 -0300
commitbeefb8d0e556aaf3cb69168c5953e023ace6aa78 (patch)
tree8fb99a42d13d03812d5d7d6ce480d2c6cc215d51 /tools/perf/builtin-top.c
parent448f13b2d18fdc8dbaada97442e8954dcb4ef8fa (diff)
downloadlinux-beefb8d0e556aaf3cb69168c5953e023ace6aa78.tar.bz2
perf top: Cleanup condition in perf_top__record_precise_ip()
The 'he' cannot be NULL since it's caller hist_iter__top_callback() is called only if iter->he is not NULL (see hist_entry_iter__add). So setting 'sym' before the condition to simplify the code. Also make it clearer that the top->symbol_filter_entry check is only meaningful on stdio mode (i.e. when use_browser is 0). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1449802616-16170-4-git-send-email-namhyung@kernel.org [ Complete the simplification replacing one more he->ms.sym with sym ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index f447e5531f8b..92fe963e43c4 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -175,15 +175,14 @@ static void perf_top__record_precise_ip(struct perf_top *top,
int counter, u64 ip)
{
struct annotation *notes;
- struct symbol *sym;
+ struct symbol *sym = he->ms.sym;
int err = 0;
- if (he == NULL || he->ms.sym == NULL ||
- ((top->sym_filter_entry == NULL ||
- top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1))
+ if (sym == NULL || (use_browser == 0 &&
+ (top->sym_filter_entry == NULL ||
+ top->sym_filter_entry->ms.sym != sym)))
return;
- sym = he->ms.sym;
notes = symbol__annotation(sym);
if (pthread_mutex_trylock(&notes->lock))