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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 48708C43461 for ; Wed, 28 Apr 2021 06:40:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 197DA61420 for ; Wed, 28 Apr 2021 06:40:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236283AbhD1Gkz (ORCPT ); Wed, 28 Apr 2021 02:40:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236321AbhD1Git (ORCPT ); Wed, 28 Apr 2021 02:38:49 -0400 Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3B40C06175F for ; Tue, 27 Apr 2021 23:37:54 -0700 (PDT) Received: by mail-ed1-x529.google.com with SMTP id s15so72835174edd.4 for ; Tue, 27 Apr 2021 23:37:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=H2MBTNvsrMqWEHkmYsxdcgfxC68PzfrMdSTO7rP4y5o=; b=i84V/ev2P714PbNslabL5l9hLlbdi2YaN0M+ELAABRzdnfBmQwNyKQjF6tsc+DWT68 4DLOoVm83eP60xCaWgZv+M8xY1JnpJlS8yqM7dw+IaSmVKMhGWlhvv6a7uG5gG9e81LU DwW4EYKZL7b1dJL/c6ORnkzfn0XTDMYLiwEO4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=H2MBTNvsrMqWEHkmYsxdcgfxC68PzfrMdSTO7rP4y5o=; b=Pod8f/LZKl7aGOWZvQmQKm60ek61UAyFEbUwNjQhiml/w7npnV1vyQA4QSbbFOVj4x /kF4qehm3guzdlJEdTq8bSImbWrg83px1/7wSdQ7ujefIGiT2phvviGoEgwQJIN+6eOd X9gNUfWvpF8l4B1y2w+YXGDUSmGTig3uLZJh3dtInmVVtr64cfmH/jRVC7tEB7fKkPa0 gNRDurJ9niKxyJk2CM/ciQCN0ziEH7TE7KYH/QNxIkI9sLutcpRmnahYo1C9W7oup87C B/EoZLKL3EaYcl8PCpH60iH+WBDSS5SVVWLLC7/M/kXeyP503hA9y0ltaflQNYbOlA4D zijg== X-Gm-Message-State: AOAM533x+dfsJM3WPFcHo5kYgW5EBsPlArk6F8EzKxP54WCJ06IY0BII qe4foKwGRtvbosCjmAziEQ4Nzg== X-Google-Smtp-Source: ABdhPJyQuljWqP1ndOlVjWURUtYpufdshc8XG3yrG6ftQJx5KiHRohI/5e382rYD80udA+UfHKBR4A== X-Received: by 2002:aa7:c2d2:: with SMTP id m18mr8799900edp.96.1619591873494; Tue, 27 Apr 2021 23:37:53 -0700 (PDT) Received: from [192.168.1.149] ([80.208.71.248]) by smtp.gmail.com with ESMTPSA id w1sm4166299edt.89.2021.04.27.23.37.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 27 Apr 2021 23:37:53 -0700 (PDT) Subject: Re: [PATCH] lib/string: sysfs_streq works case insensitively To: Gioh Kim , linux-kernel@vger.kernel.org, akpm@linux-foundation.org Cc: ndesaulniers@google.com, gregkh@linuxfoundation.org References: <20210412113315.91700-1-gi-oh.kim@ionos.com> From: Rasmus Villemoes Message-ID: <24530d5a-5611-469e-a4f7-cc704589e9a5@rasmusvillemoes.dk> Date: Wed, 28 Apr 2021 08:37:51 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <20210412113315.91700-1-gi-oh.kim@ionos.com> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/04/2021 13.33, Gioh Kim wrote: > As the name shows, it checks the strings inputed from sysfs. > It should work for both case-sensitive filesystem and > case-insensitive filesystem. Therefore sysfs_streq should work > case-insensitively. What in the whole wide world does case-sensitivity or lack thereof of filesystems have to do with whether or not the sysfs_streq API should work case sensitively or not? The sysfs filesystem itself (1) works like any real UNIX file system (i.e. case sensitively) and (2) sysfs_streq is not in any way involved in readdir or lookups or other such filename operations in sysfs. Very confused, Rasmus