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=-16.8 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=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 77E39C433B4 for ; Mon, 17 May 2021 08:12:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5495C610A1 for ; Mon, 17 May 2021 08:12:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235430AbhEQIN7 (ORCPT ); Mon, 17 May 2021 04:13:59 -0400 Received: from mail.loongson.cn ([114.242.206.163]:56512 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230507AbhEQIN7 (ORCPT ); Mon, 17 May 2021 04:13:59 -0400 Received: from linux.localdomain (unknown [113.200.148.30]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxH+93JaJgzDYYAA--.19893S2; Mon, 17 May 2021 16:12:40 +0800 (CST) From: Tiezhu Yang To: Dwaipayan Ray , Lukas Bulwahn , Joe Perches , Jonathan Corbet Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] Documentation: checkpatch: add description if no filenames are given Date: Mon, 17 May 2021 16:12:39 +0800 Message-Id: <1621239159-21139-1-git-send-email-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.1.0 X-CM-TRANSID: AQAAf9DxH+93JaJgzDYYAA--.19893S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Xw4Dtw4xXryUtry7JryxZrb_yoWkGwcEkr 45tFs5WryxJrWUt3Z0yF4rXrW2vw45Zw18Awn5ZryDZ34F9a98XFZ7Kr9Fyr1UCrW29Fnx Cw45Za90yFs7AjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb2AYjsxI4VWkCwAYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I 6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM2 8CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0 cI8IcVCY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwV C2z280aVCY1x0267AKxVW0oVCq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Gr0_Cr 1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JMxkIecxEwVAFwVW8ZwCF04k2 0xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI 8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41l IxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIx AIcVCF04k26cxKx2IYs7xG6rWUJVWrZr1UMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvE x4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07j2WlgUUUUU= X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After commit 45107ff6d526 ("checkpatch: if no filenames then read stdin"), if no filenames are given, it will read patch from stdin rather than exit directly, it is a bit confusing whether the script hangs, I do not quite know what to do next until I understood the code logic. It is unnecessary to print some info if no filenames are given, because it is like trying to make cat without command line arguments emit something, just add description for somebody that actually reads the available kernel documentation on checkpatch. Signed-off-by: Tiezhu Yang --- Documentation/dev-tools/checkpatch.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst index 51fed1b..3eb9ead 100644 --- a/Documentation/dev-tools/checkpatch.rst +++ b/Documentation/dev-tools/checkpatch.rst @@ -22,6 +22,8 @@ Usage:: ./scripts/checkpatch.pl [OPTION]... [FILE]... +When FILE is -, or absent, checkpatch reads from standard input. + Available options: - -q, --quiet -- 2.1.0