From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754446AbbLKOXU (ORCPT ); Fri, 11 Dec 2015 09:23:20 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:50945 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754038AbbLKOXK (ORCPT ); Fri, 11 Dec 2015 09:23:10 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , David Ahern , Jiri Olsa , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 4/9] perf top: Cleanup condition in perf_top__record_precise_ip() Date: Fri, 11 Dec 2015 11:22:27 -0300 Message-Id: <1449843752-28395-5-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1449843752-28395-1-git-send-email-acme@kernel.org> References: <1449843752-28395-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim 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 Cc: David Ahern Cc: Jiri Olsa Cc: Peter Zijlstra 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 --- 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..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(¬es->lock)) -- 2.1.0