From patchwork Mon Mar 7 09:19:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 12771444 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 46FBBC433EF for ; Mon, 7 Mar 2022 09:37:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1ndSHCvAHWBxqovtE9Rl/Zwn6y9DXybXvUQm1YsFKqc=; b=bC46dJhu6Rm7/Y 2u4xAP60QX+VAL3ZQZ+iBmDni6azYhUsBTixsaetfmpt4VPrUa1xBkSzuZ4u2uwsE5ppl0IYfYDRL 28jb83TqetjkeKXAMZM3hnz/DSx6dwwyNlbbm5Zut6w0YREfoNpNk9TaZCxC7ZgzB7pCQzFEXosYY uug9lDmn7SNwVPraJajG+O4o/tvYgcumTbdeTjLykVsaD2zMrXOKeJEQFHAwesoe/ZxIaDmZXQ4yr IaLfoBQYz+5BL+O/HwhncpDaIgEx5EtumzQHrdsKDMORIckm57zZOB9Z5uWXYWRJ+zgbMEruu5ilE /bP0n/pZ6DDfGvhGQfKQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9m1-00GoLd-Ti; Mon, 07 Mar 2022 09:35:27 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9f8-00GlDi-QR for linux-arm-kernel@lists.infradead.org; Mon, 07 Mar 2022 09:28:20 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5D3FDB80F9F; Mon, 7 Mar 2022 09:28:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0466C340E9; Mon, 7 Mar 2022 09:28:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1646645296; bh=1JdOwzAd4A8p14zKZkL9HsGfoOPkGQsKjtO9nw/zU1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ee0PDt9mXlu89/QRhkblAAiMyl1IdZHDhY3xHJrcgTkJmA/ytXLOakkUocE5GBx/H fpcvrcsT3Jnr18w9lL9i2He33vKTksCfL46P4VBncFHaJcgMHbfa8GuamC7OQckrH+ HaqnHeDOnys//DBP/tierad+9E+3soq70lplPsVQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Randy Dunlap , Igor Zhbanov , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , linux-arm-kernel@lists.infradead.org, patches@armlinux.org.uk, "Russell King (Oracle)" Subject: [PATCH 5.4 47/64] ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions Date: Mon, 7 Mar 2022 10:19:20 +0100 Message-Id: <20220307091640.486020232@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220307091639.136830784@linuxfoundation.org> References: <20220307091639.136830784@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220307_012819_059279_8461CB70 X-CRM114-Status: GOOD ( 12.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Randy Dunlap commit 7b83299e5b9385943a857d59e15cba270df20d7e upstream. early_param() handlers should return 0 on success. __setup() handlers should return 1 on success, i.e., the parameter has been handled. A return of 0 would cause the "option=value" string to be added to init's environment strings, polluting it. ../arch/arm/mm/mmu.c: In function 'test_early_cachepolicy': ../arch/arm/mm/mmu.c:215:1: error: no return statement in function returning non-void [-Werror=return-type] ../arch/arm/mm/mmu.c: In function 'test_noalign_setup': ../arch/arm/mm/mmu.c:221:1: error: no return statement in function returning non-void [-Werror=return-type] Fixes: b849a60e0903 ("ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15") Signed-off-by: Randy Dunlap Reported-by: Igor Zhbanov Cc: Uwe Kleine-König Cc: linux-arm-kernel@lists.infradead.org Cc: patches@armlinux.org.uk Signed-off-by: Russell King (Oracle) Signed-off-by: Greg Kroah-Hartman --- arch/arm/mm/mmu.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -229,12 +229,14 @@ early_param("ecc", early_ecc); static int __init early_cachepolicy(char *p) { pr_warn("cachepolicy kernel parameter not supported without cp15\n"); + return 0; } early_param("cachepolicy", early_cachepolicy); static int __init noalign_setup(char *__unused) { pr_warn("noalign kernel parameter not supported without cp15\n"); + return 1; } __setup("noalign", noalign_setup);