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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 86786C4707F for ; Thu, 27 May 2021 09:01:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B6D0613CA for ; Thu, 27 May 2021 09:01:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235567AbhE0JCk (ORCPT ); Thu, 27 May 2021 05:02:40 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:2433 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235392AbhE0JCj (ORCPT ); Thu, 27 May 2021 05:02:39 -0400 Received: from dggeml768-chm.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4FrMD32bKTz670b; Thu, 27 May 2021 16:58:11 +0800 (CST) Received: from dggpeml500020.china.huawei.com (7.185.36.88) by dggeml768-chm.china.huawei.com (10.1.199.178) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Thu, 27 May 2021 17:01:04 +0800 Received: from huawei.com (10.175.127.227) by dggpeml500020.china.huawei.com (7.185.36.88) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 27 May 2021 17:01:03 +0800 From: Baokun Li To: , , CC: , , , , Subject: [PATCH -next] tracing: Remove set but not used variable 'ret' Date: Thu, 27 May 2021 17:10:32 +0800 Message-ID: <20210527091032.3878436-1-libaokun1@huawei.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpeml500020.china.huawei.com (7.185.36.88) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes gcc '-Wunused-but-set-variable' warning: kernel/trace/trace_events_hist.c: In function 'unregister_field_var_hists': kernel/trace/trace_events_hist.c:5228:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] It never used since introduction. Signed-off-by: Baokun Li --- kernel/trace/trace_events_hist.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index c1abd63f1d6c..af4da32f7eab 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -5225,13 +5225,12 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data) struct trace_event_file *file; unsigned int i; char *cmd; - int ret; for (i = 0; i < hist_data->n_field_var_hists; i++) { file = hist_data->field_var_hists[i]->hist_data->event_file; cmd = hist_data->field_var_hists[i]->cmd; - ret = event_hist_trigger_func(&trigger_hist_cmd, file, - "!hist", "hist", cmd); + event_hist_trigger_func(&trigger_hist_cmd, file, + "!hist", "hist", cmd); } } -- 2.25.4