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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 6E8B4C282C3 for ; Thu, 24 Jan 2019 19:42:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C74121900 for ; Thu, 24 Jan 2019 19:42:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548358949; bh=EAQtuUOBC0vzOKhrKJJ5+TilfV1xu1i593QWkTHAubg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rp2ALzGnEIXGC3ucWMeLVM1RfMi6kpnWYJsDfZoOULjDHoLx4s1FuR3cE5fMtp0jd rNF/bhc4B52L/BI3157keSe21DzrIwvejHEOEsH2+qAB5O244952LWUIFC7fd3vjjf PrOQYtF5a8KmO/27UWaP5fvBD26LATTpQjlKoYQE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387793AbfAXTm1 (ORCPT ); Thu, 24 Jan 2019 14:42:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:42862 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387775AbfAXTmY (ORCPT ); Thu, 24 Jan 2019 14:42:24 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id ACFF820663; Thu, 24 Jan 2019 19:42:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548358943; bh=EAQtuUOBC0vzOKhrKJJ5+TilfV1xu1i593QWkTHAubg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yLkGfNZM0D8uL2Yod17LifzzUz0kRiF2B6tZXxXSHmkYJKDdT3QocbT3ixtjYXm9B bw/vGuZleMtUkLULFHib8YUjfkmHcmIme2WLNSaccmp53/4QuYfn/XpWy5+4Jboe+P 5BUTUCiIKkd58l8WU7JnwBPQn7t0z2sb8X10bnFk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Adrian Hunter , Jiri Olsa , "Steven Rostedt (VMware)" , "Tzvetomir Stoyanov (VMware)" , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 4.20 082/127] tools lib traceevent: Fix compile warnings in tools/lib/traceevent/event-parse.c Date: Thu, 24 Jan 2019 20:20:28 +0100 Message-Id: <20190124190215.600304401@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190124190211.984305387@linuxfoundation.org> References: <20190124190211.984305387@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.20-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 0631ca3a6e6edd23a2ca7cab707d1abf291a097d ] 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 Signed-off-by: Sasha Levin --- 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 70144b98141c..8ea1a02812b0 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; @@ -5147,8 +5147,8 @@ 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; -- 2.19.1