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=-18.8 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,USER_AGENT_GIT 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 91972C43381 for ; Fri, 19 Mar 2021 14:36:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6EDBB64F53 for ; Fri, 19 Mar 2021 14:36:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230090AbhCSOfv (ORCPT ); Fri, 19 Mar 2021 10:35:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229736AbhCSOfj (ORCPT ); Fri, 19 Mar 2021 10:35:39 -0400 X-Greylist: delayed 176 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 19 Mar 2021 07:35:38 PDT Received: from mo6-p00-ob.smtp.rzone.de (mo6-p00-ob.smtp.rzone.de [IPv6:2a01:238:400:100::c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF2D6C06174A; Fri, 19 Mar 2021 07:35:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1616164356; cv=none; d=strato.com; s=strato-dkim-0002; b=tt9djRckmK71ceD8HxV5dLDlWikC9DdjBxpoGbeq9pMIJ0rm1eoq+YVCyPInT32xwa ZvZ3xWn02XsE7rKL7Da/Cz+guwRNB3R4mKjKY1ijr0Q6TirFkM8jAtz1RiroCLo1k18R G8RxUyBzJbdcQj+qGbBCdot24WgnH6cJvV0kb8jTEk37C2RiGEolxOp10XdynoKjvTBv cv+HMjYFGcFUF5Zu/TczPUwFMda9aBUdc8AU9AMLfJLg8vutIowKhBWOdC2PvDgHfG6B RCF+wJd9ycJkvTTOxXt5lEHzZ3O/pjVRy5p3j2SUMQpNB+8g8jHtYLUDV3zjwd0tBgi/ GF2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; t=1616164356; s=strato-dkim-0002; d=strato.com; h=Message-Id:Date:Subject:Cc:To:From:Cc:Date:From:Subject:Sender; bh=KGzxKbIHnQcvHgHKZ5DjQzsm3s5Xw/potfFZ/ejNYAA=; b=P98egNYLFg1dj3jULXXwdWAQEfBEA/nnKEMnRHz1NypI9WD7MYWQmN8DC8QNP3LxnA RJHAq1UMeQz4TR14PNjlgNlMLce6tEJ+e52iX12HDxKwDoA0VoGDwETkGiepZEc+gMoU gvL+l1PcjCB6xDvbxNj0LRQP+cKcScGJHjgc86zJZUirDHyWIqRFbPIbkCQELKKyocpX i0qAyO5R0Qwep4nnSNpRDdE7twL1Fjj9ppiY6KizYNcV002njjtBizoEWShhtbfYwC4q dtqm60H3A8FbyvDuLC1CFHD09QqA8HoK9AlHmZtpvTPgZe8ZWEFnG/uSAgbJDqqu+Ycl FQow== ARC-Authentication-Results: i=1; strato.com; dkim=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1616164356; s=strato-dkim-0002; d=aepfle.de; h=Message-Id:Date:Subject:Cc:To:From:Cc:Date:From:Subject:Sender; bh=KGzxKbIHnQcvHgHKZ5DjQzsm3s5Xw/potfFZ/ejNYAA=; b=qljbFpCEOROWiklRPkBafoJhb/yxTF3aQ9CNnZM9xqwsMDhnxs+fSV1y/9UEdceZPJ uZHhZMvxgLn4jpALmXNffRle+a4Mi4xVBwyx3OxiLvLJC+mRj0+O8iXINQGZPWTYGA4q kKJ38XcFbNyjiIm2ft3eB1mbgVZp2+8omVzqBrtDnP/i1BRHOofgjY1bmB89w904nAfF xyxEPMbaycjHGJkxjti+hmGlbNzmIAjcZ+9fNIWtsiNp/zHrlyeJcqsMLEuVl9x4tI/7 vjUJACzLmuGC2WB3YhugbcOFd2k3ucW5gVgneS43voWi9ZpO/s1NhGUY+BNicrQmntX6 +FTA== Authentication-Results: strato.com; dkim=none X-RZG-AUTH: ":P2EQZWCpfu+qG7CngxMFH1J+3q8wa/QXkBR9MXjAuzBW/OdlBZQ4AHSS325Pjw==" X-RZG-CLASS-ID: mo00 Received: from sender by smtp.strato.de (RZmta 47.21.0 SBL|AUTH) with ESMTPSA id k0a44fx2JEWZB8P (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)) (Client did not present a certificate); Fri, 19 Mar 2021 15:32:35 +0100 (CET) From: Olaf Hering To: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Olaf Hering , Masahiro Yamada , Michal Marek Subject: [PATCH v2] kbuild: enforce -Werror=unused-result Date: Fri, 19 Mar 2021 15:32:31 +0100 Message-Id: <20210319143231.25500-1-olaf@aepfle.de> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org It is a hard error if a return value is ignored. In case the return value has no meaning, remove the attribute. Signed-off-by: Olaf Hering --- v2: resend Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a28bb374663d..9b7def6db494 100644 --- a/Makefile +++ b/Makefile @@ -495,7 +495,7 @@ KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE KBUILD_CFLAGS := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \ -Werror=implicit-function-declaration -Werror=implicit-int \ - -Werror=return-type -Wno-format-security \ + -Werror=return-type -Werror=unused-result -Wno-format-security \ -std=gnu89 KBUILD_CPPFLAGS := -D__KERNEL__ KBUILD_AFLAGS_KERNEL :=