From patchwork Tue Nov 17 10:47:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olaf Hering X-Patchwork-Id: 11911993 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 A9706C2D0E4 for ; Tue, 17 Nov 2020 10:54:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D0B024656 for ; Tue, 17 Nov 2020 10:54:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=aepfle.de header.i=@aepfle.de header.b="spRnsivt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726136AbgKQKxy (ORCPT ); Tue, 17 Nov 2020 05:53:54 -0500 Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.217]:26613 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725355AbgKQKxy (ORCPT ); Tue, 17 Nov 2020 05:53:54 -0500 X-Greylist: delayed 361 seconds by postgrey-1.27 at vger.kernel.org; Tue, 17 Nov 2020 05:53:54 EST DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1605610433; s=strato-dkim-0002; d=aepfle.de; h=Message-Id:Date:Subject:Cc:To:From:X-RZG-CLASS-ID:X-RZG-AUTH:From: Subject:Sender; bh=Hy8/WHGPlWpK/qYWNrXSgIdTBb+Qpp2vuw7CzzqM770=; b=spRnsivtKDPzElKhfxI1YAh211VwE555oj1HeVf5u+ujq5TiywzEHnR2drUo0FjsQn W90r8WAThVA+ut7F1oMC3RgctMeIDPk5bC/Z8dXiuEQY8ihpbi1vlkGzsxHtoI3jxN0P ZKa1DgjmvvU4rtCoc1hOPY0XoVUHfXeUUdsflUaVjH8GlTzB0QPfhnTFdf+eqCnS6lBp 5b9RDNcb6ACy90oZ8jQk4D+t2WbfGASsg7eUqqSySNlYgjpDVlWHfUVLAVNt4PNQL05H 9gAo6ExdKgHfE71oSMziCJDKPJVifwk8MXckdDW63aby+W6RN9LMe5uhbijfz//QaXf1 Nt1w== X-RZG-AUTH: ":P2EQZWCpfu+qG7CngxMFH1J+3q8wa/QXkBR9MXjAuzBW/OdlBZQ4AHSS32xIjw==" X-RZG-CLASS-ID: mo00 Received: from sender by smtp.strato.de (RZmta 47.3.4 DYNA|AUTH) with ESMTPSA id V0b6ccwAHAlfTEF (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)) (Client did not present a certificate); Tue, 17 Nov 2020 11:47:41 +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 v1] kbuild: enforce -Werror=unused-result Date: Tue, 17 Nov 2020 11:47:35 +0100 Message-Id: <20201117104736.24997-1-olaf@aepfle.de> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 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 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index e2c3f65c4721..c7f9acffad42 100644 --- a/Makefile +++ b/Makefile @@ -497,7 +497,7 @@ 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 :=