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=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS 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 577AAC43387 for ; Fri, 21 Dec 2018 22:58:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F03A21929 for ; Fri, 21 Dec 2018 22:58:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403843AbeLUW6R (ORCPT ); Fri, 21 Dec 2018 17:58:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:49266 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390880AbeLUW6Q (ORCPT ); Fri, 21 Dec 2018 17:58:16 -0500 Received: from gandalf.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (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 7769021920; Fri, 21 Dec 2018 22:58:15 +0000 (UTC) Date: Fri, 21 Dec 2018 17:58:13 -0500 From: Steven Rostedt To: Linus Torvalds Cc: Joe Perches , Andreas Schwab , Linux List Kernel Mailing , Ingo Molnar , Andrew Morton , Namhyung Kim , Masami Hiramatsu , Tom Zanussi , Greg Kroah-Hartman Subject: Re: [for-next][PATCH 23/24] string.h: Add strncmp_prefix() helper macro Message-ID: <20181221175813.0e98743f@gandalf.local.home> In-Reply-To: References: <20181221175618.968519903@goodmis.org> <20181221175659.208858193@goodmis.org> <20181221144054.20bdeb33@gandalf.local.home> <20181221153526.5e6055ca@gandalf.local.home> <077eeb8b09baebe78822819b5f15d671b738a2b2.camel@perches.com> <20181221155435.38a9a221@gandalf.local.home> <871s6ad2br.fsf@igel.home> <20181221160826.34c544e6@gandalf.local.home> <84199633fd49db573c9ba71f1992936422e907d4.camel@perches.com> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 21 Dec 2018 14:29:30 -0800 Linus Torvalds wrote: > On Fri, Dec 21, 2018 at 2:20 PM Joe Perches wrote: > > > > Using > > > > static inline bool str_has_prefix(const char *str, const char prefix[]) > > { > > return !strncmp(str, prefix, strlen(prefix)); > > } > > > > eliminates the strlen with gcc 4.8 (oldest I still have) > > Ok, that looks like the right thing to do. > Agreed, and I posted a new version. I can start running it through my test suit (I'll update all the instances in the tracing directory to use it), and then it will be ready for a pull request by next week. I'll revert the top two patches from my for-next tree now. -- Steve