From patchwork Mon Mar 7 09:19:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 12771443 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 D981FC433EF for ; Mon, 7 Mar 2022 09:34:26 +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=G6Dpf/JUsBYKwTbGwpe04CKOAdSmh2N/j0dKK7eeDII=; b=vVbvm+jfyLtw8G sLvA/v/c1WkwJFnh8kSq53zSTRcSnmgaUk3XDuc1ZvRQzHYtTPu3vt+UQujkb1+oXOBxDHTcLS9LQ +ySDytFzjeuIXG2lQWXL3SYOS4R/lvxUxm7GZrsjrIxHddz59T9S6RKE9cyR9xCN/YkTAdc9C3i0M BnxtrSfmhQJDI0TS34u1n9zKG080PLVBCtgayzwiOreNNaEKi2L0xY6qwCpo+iyrTOi+TaWLFWa4B C+NkwiLhe05YqwDOzZkiZvkGUQ3uMhITC63v6hn4tqp++dH6vBRWClawSQHum8xuu0Z0MDWidxJS1 slALs4MJG1S7LBoZLZYA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9jZ-00GnAq-Sq; Mon, 07 Mar 2022 09:32:54 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9c4-00Gjom-13 for linux-arm-kernel@lists.infradead.org; Mon, 07 Mar 2022 09:25:10 +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 dfw.source.kernel.org (Postfix) with ESMTPS id 2AC6E6118E; Mon, 7 Mar 2022 09:25:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8CB8CC340E9; Mon, 7 Mar 2022 09:25:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1646645105; bh=AhXUlbjfx1RQm61Vv2Eqw9hgtDpyAwoe9JDwySpQJVg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TcYNqduRcJEYUqtCGrVulAWARHg+quJVMMP9P3wFLUlenU3e/hC+ujPFHc/uEqk4g R//WU58pYjsSSMzSoYMcM0B8tdS4pwLr9IHD8RGPJPSqmz3fbPz5VE9GyxOqMIEfIq KlmwHIGW+zvDnuViW8nvw8bGnD77o/zVbW6YPmAc= 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 4.19 40/51] ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions Date: Mon, 7 Mar 2022 10:19:15 +0100 Message-Id: <20220307091638.132975931@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220307091636.988950823@linuxfoundation.org> References: <20220307091636.988950823@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_012508_176559_74B72FBF X-CRM114-Status: GOOD ( 12.95 ) 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 @@ -230,12 +230,14 @@ 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);