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Subject[PATCH 4/4] perf top: Cleanup condition in perf_top__record_precise_ip()
Date
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>
---
tools/perf/builtin-top.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index f447e5531f8b..e67991eb9304 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 != he->ms.sym)))
return;

- sym = he->ms.sym;
notes = symbol__annotation(sym);

if (pthread_mutex_trylock(&notes->lock))
--
2.6.4


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