From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C766C43387 for ; Tue, 18 Dec 2018 13:51:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 044A821871 for ; Tue, 18 Dec 2018 13:51:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726666AbeLRNvZ (ORCPT ); Tue, 18 Dec 2018 08:51:25 -0500 Received: from terminus.zytor.com ([198.137.202.136]:50167 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726422AbeLRNvZ (ORCPT ); Tue, 18 Dec 2018 08:51:25 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wBIDpFor2850867 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 18 Dec 2018 05:51:15 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wBIDpFWK2850864; Tue, 18 Dec 2018 05:51:15 -0800 Date: Tue, 18 Dec 2018 05:51:15 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Adrian Hunter Message-ID: Cc: rostedt@goodmis.org, acme@redhat.com, hpa@zytor.com, tglx@linutronix.de, tz.stoyanov@gmail.com, adrian.hunter@intel.com, linux-kernel@vger.kernel.org, mingo@kernel.org, jolsa@redhat.com Reply-To: rostedt@goodmis.org, hpa@zytor.com, acme@redhat.com, tglx@linutronix.de, tz.stoyanov@gmail.com, adrian.hunter@intel.com, linux-kernel@vger.kernel.org, mingo@kernel.org, jolsa@redhat.com In-Reply-To: <20181122112937.10582-1-adrian.hunter@intel.com> References: <20181122112937.10582-1-adrian.hunter@intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] tools lib traceevent: Fix compile warnings in tools/lib/traceevent/event-parse.c Git-Commit-ID: 0631ca3a6e6edd23a2ca7cab707d1abf291a097d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 0631ca3a6e6edd23a2ca7cab707d1abf291a097d Gitweb: https://git.kernel.org/tip/0631ca3a6e6edd23a2ca7cab707d1abf291a097d Author: Adrian Hunter AuthorDate: Thu, 22 Nov 2018 13:29:37 +0200 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 17 Dec 2018 14:54:21 -0300 tools lib traceevent: Fix compile warnings in tools/lib/traceevent/event-parse.c Fix following warnings: event-parse.c: In function ‘tep_find_event_by_name’: event-parse.c:3521:21: warning: ‘event’ may be used uninitialized in this function [-Wmaybe-uninitialized] pevent->last_event = event; ~~~~~~~~~~~~~~~~~~~^~~~~~~ CC ui/gtk/hists.o LINK plugin_mac80211.so CC nlattr.o event-parse.c: In function ‘tep_data_lat_fmt’: event-parse.c:5200:4: warning: ‘migrate_disable’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, "%d", migrate_disable); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:5207:4: warning: ‘lock_depth’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, "%d", lock_depth); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LINK plugin_sched_switch.so LINK plugin_function.so LINK plugin_xen.so event-parse.c: In function ‘tep_event_info’: event-parse.c:5047:7: warning: ‘len_arg’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, format, len_arg, (char)val); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:4884:6: note: ‘len_arg’ was declared here int len_arg; ^~~~~~~ event-parse.c:4338:11: warning: ‘vsize’ may be used uninitialized in this function [-Wmaybe-uninitialized] val = tep_read_number(pevent, bptr, vsize); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:4224:6: note: ‘vsize’ was declared here int vsize; ^~~~~ $ gcc --version gcc (Clear Linux OS for Intel Architecture) 8.2.1 20180502 Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: Steven Rostedt (VMware) Cc: Tzvetomir Stoyanov (VMware) Link: http://lkml.kernel.org/r/20181122112937.10582-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-parse.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 3692f29fee46..fbd6d6813fab 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -3498,7 +3498,7 @@ struct tep_event_format * tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name) { - struct tep_event_format *event; + struct tep_event_format *event = NULL; int i; if (pevent->last_event && @@ -4221,7 +4221,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s unsigned long long ip, val; char *ptr; void *bptr; - int vsize; + int vsize = 0; field = pevent->bprint_buf_field; ip_field = pevent->bprint_ip_field; @@ -4881,7 +4881,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e char format[32]; int show_func; int len_as_arg; - int len_arg; + int len_arg = 0; int len; int ls; @@ -5146,8 +5146,8 @@ void tep_data_lat_fmt(struct tep_handle *pevent, static int migrate_disable_exists; unsigned int lat_flags; unsigned int pc; - int lock_depth; - int migrate_disable; + int lock_depth = 0; + int migrate_disable = 0; int hardirq; int softirq; void *data = record->data;