Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932550Ab3HNMnS (ORCPT ); Wed, 14 Aug 2013 08:43:18 -0400 Received: from mga14.intel.com ([143.182.124.37]:33982 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932469Ab3HNMnM (ORCPT ); Wed, 14 Aug 2013 08:43:12 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.89,876,1367996400"; d="scan'208";a="346237503" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Stephane Eranian , Ingo Molnar Subject: [PATCH V11 07/15] perf tools: remove unnecessary callchain validation Date: Wed, 14 Aug 2013 15:48:29 +0300 Message-Id: <1376484517-5339-8-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1376484517-5339-1-git-send-email-adrian.hunter@intel.com> References: <1376484517-5339-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3155 Lines: 92 Now that the sample parsing correctly checks data sizes there is no reason for it to be done again for callchains. Signed-off-by: Adrian Hunter Acked-by: Namhyung Kim --- tools/perf/util/callchain.c | 8 -------- tools/perf/util/callchain.h | 5 ----- tools/perf/util/session.c | 20 -------------------- 3 files changed, 33 deletions(-) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 4fee33b..482f680 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -21,14 +21,6 @@ __thread struct callchain_cursor callchain_cursor; -bool ip_callchain__valid(struct ip_callchain *chain, - const union perf_event *event) -{ - unsigned int chain_size = event->header.size; - chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event; - return chain->nr * sizeof(u64) <= chain_size; -} - #define chain_for_each_child(child, parent) \ list_for_each_entry(child, &parent->children, siblings) diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index 812d5a0..2b585bc 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -109,11 +109,6 @@ int callchain_append(struct callchain_root *root, int callchain_merge(struct callchain_cursor *cursor, struct callchain_root *dst, struct callchain_root *src); -struct ip_callchain; -union perf_event; - -bool ip_callchain__valid(struct ip_callchain *chain, - const union perf_event *event); /* * Initialize a cursor before adding entries inside, but keep * the previously allocated entries as a cache. diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index da0a216..1d9ae82 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -997,22 +997,6 @@ static int perf_session_deliver_event(struct perf_session *session, } } -static int perf_session__preprocess_sample(struct perf_session *session, - union perf_event *event, struct perf_sample *sample) -{ - if (event->header.type != PERF_RECORD_SAMPLE || - !sample->callchain) - return 0; - - if (!ip_callchain__valid(sample->callchain, event)) { - pr_debug("call-chain problem with event, skipping it.\n"); - ++session->stats.nr_invalid_chains; - session->stats.total_invalid_chains += sample->period; - return -EINVAL; - } - return 0; -} - static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, struct perf_tool *tool, u64 file_offset) { @@ -1075,10 +1059,6 @@ static int perf_session__process_event(struct perf_session *session, if (ret) return ret; - /* Preprocess sample records - precheck callchains */ - if (perf_session__preprocess_sample(session, event, &sample)) - return 0; - if (tool->ordered_samples) { ret = perf_session_queue_event(session, event, &sample, file_offset); -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/