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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 90CF6C433ED for ; Fri, 7 May 2021 01:04:01 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3B457610FA for ; Fri, 7 May 2021 01:04:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B457610FA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CE0BE6B00A3; Thu, 6 May 2021 21:04:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BF31E6B00A4; Thu, 6 May 2021 21:04:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A94AC6B00A5; Thu, 6 May 2021 21:04:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0247.hostedemail.com [216.40.44.247]) by kanga.kvack.org (Postfix) with ESMTP id 876906B00A3 for ; Thu, 6 May 2021 21:04:00 -0400 (EDT) Received: from smtpin39.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 531A2180AD838 for ; Fri, 7 May 2021 01:04:00 +0000 (UTC) X-FDA: 78112638240.39.80755DE Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf23.hostedemail.com (Postfix) with ESMTP id D5AC1A0003B9 for ; Fri, 7 May 2021 01:03:51 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id E036A610F7; Fri, 7 May 2021 01:03:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1620349439; bh=3oIOmhhwylh/Ad5EKTVIjtRH+XgJ7M7Dn139FYpVpcY=; h=Date:From:To:Subject:In-Reply-To:From; b=KLvJu+3ktFaFnxT2umWjTTYRvjdZggi4BqkqL6PoTmqMvOIflXtUVtVstgpt+Sao3 BfKe9tLfsD3upHdIZJOoxZe22VW0YjmW3kGGxTqVsU19lGAwey6BLHVDV9oj58wv4c 6mU20kLS+XTELjZBnmX4vTJc2we4d+0ZrIwtyRTs= Date: Thu, 06 May 2021 18:03:58 -0700 From: Andrew Morton To: akpm@linux-foundation.org, joe@perches.com, linux-mm@kvack.org, mailhol.vincent@wanadoo.fr, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 37/91] checkpatch: exclude four preprocessor sub-expressions from MACRO_ARG_REUSE Message-ID: <20210507010358.m2ZZiPpcT%akpm@linux-foundation.org> In-Reply-To: <20210506180126.03e1baee7ca52bedb6cc6003@linux-foundation.org> User-Agent: s-nail v14.8.16 Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=KLvJu+3k; spf=pass (imf23.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: D5AC1A0003B9 X-Stat-Signature: zju6res9uxyd8yxddpcxuc3jsy4xa46p Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf23; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1620349431-598499 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Vincent Mailhol Subject: checkpatch: exclude four preprocessor sub-expressions from MACRO_ARG_REUSE __must_be_array, offsetof, sizeof_field and __stringify are all preprocessor macros and do not evaluate their arguments. As such, it is safe not to warn when arguments are being reused in those four sub-expressions. Exclude those so that they can pass checkpatch. Link: https://lkml.kernel.org/r/20210407105042.25380-1-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol Acked-by: Joe Perches Signed-off-by: Andrew Morton --- scripts/checkpatch.pl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/scripts/checkpatch.pl~checkpatch-exclude-four-preprocessor-sub-expressions-from-macro_arg_reuse +++ a/scripts/checkpatch.pl @@ -5829,7 +5829,7 @@ sub process { next if ($arg =~ /\.\.\./); next if ($arg =~ /^type$/i); my $tmp_stmt = $define_stmt; - $tmp_stmt =~ s/\b(sizeof|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g; + $tmp_stmt =~ s/\b(__must_be_array|offsetof|sizeof|sizeof_field|__stringify|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g; $tmp_stmt =~ s/\#+\s*$arg\b//g; $tmp_stmt =~ s/\b$arg\s*\#\#//g; my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g; _