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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 476DCC433E2 for ; Sun, 12 Jul 2020 01:11:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B647207BB for ; Sun, 12 Jul 2020 01:11:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728209AbgGLBLq (ORCPT ); Sat, 11 Jul 2020 21:11:46 -0400 Received: from out30-57.freemail.mail.aliyun.com ([115.124.30.57]:53205 "EHLO out30-57.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728137AbgGLBLi (ORCPT ); Sat, 11 Jul 2020 21:11:38 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07484;MF=richard.weiyang@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0U2PGA0b_1594516294; Received: from localhost(mailfrom:richard.weiyang@linux.alibaba.com fp:SMTPD_---0U2PGA0b_1594516294) by smtp.aliyun-inc.com(127.0.0.1); Sun, 12 Jul 2020 09:11:34 +0800 From: Wei Yang To: rostedt@goodmis.org, mingo@redhat.com Cc: linux-kernel@vger.kernel.org, Wei Yang Subject: [Patch v2 2/4] tracing: save one trace_event->type by using __TRACE_LAST_TYPE Date: Sun, 12 Jul 2020 09:10:34 +0800 Message-Id: <20200712011036.70948-3-richard.weiyang@linux.alibaba.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: <20200712011036.70948-1-richard.weiyang@linux.alibaba.com> References: <20200712011036.70948-1-richard.weiyang@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Static defined trace_event->type stops at (__TRACE_LAST_TYPE - 1) and dynamic trace_event->type starts from (__TRACE_LAST_TYPE + 1). To save one trace_event->type index, let's use __TRACE_LAST_TYPE. Signed-off-by: Wei Yang --- kernel/trace/trace_output.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index a35232d61601..4d1893564912 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -20,7 +20,7 @@ DECLARE_RWSEM(trace_event_sem); static struct hlist_head event_hash[EVENT_HASHSIZE] __read_mostly; -static int next_event_type = __TRACE_LAST_TYPE + 1; +static int next_event_type = __TRACE_LAST_TYPE; enum print_line_t trace_print_bputs_msg_only(struct trace_iterator *iter) { @@ -675,7 +675,7 @@ static LIST_HEAD(ftrace_event_list); static int trace_search_list(struct list_head **list) { struct trace_event *e; - int next = __TRACE_LAST_TYPE + 1; + int next = __TRACE_LAST_TYPE; if (list_empty(&ftrace_event_list)) { *list = &ftrace_event_list; -- 2.20.1 (Apple Git-117)