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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 0091CC5DF60 for ; Tue, 5 Nov 2019 21:03:26 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A5EF02087E for ; Tue, 5 Nov 2019 21:03:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="N3w3WhBe"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="WlxNPTaF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A5EF02087E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=9SmhClD01jhlpZn2NMYUKIkvG8qH8YMJnYvudqAeitk=; b=N3w3WhBeLkAnZ3sYMYyyOHyExc JsmCfvcUySCeFs9OdMf1EiAFTZQT2S4zSlgs9vZA+bZlSXevTGDjECjzeH1bHNiqpbVl2vI/2sIyT FWa1n2L09ewaONLUa/enkWjM6B4kuhIYlkjjsrm2qXUv4nWZOlC7OHGgB8dwXm98KTWRhWinlKZJz ItCKGKGvqSec7gp7aE1lHw5nHYPEOUTRRnfhrFcjNM/XVQRex6WWRtmNH8Dnnn7S4512nEtv34ORw PTB0ni8pfOP/TZ/yPztdyA///TbXDN/2zRe1JAvSxVx+IbJP09jB2qoAHLyf5h38NwMSZiQkYiC6N 0lUvkW9g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS5z0-0001x5-61; Tue, 05 Nov 2019 21:03:22 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS5vS-0005sv-6E for linux-arm-kernel@lists.infradead.org; Tue, 05 Nov 2019 20:59:43 +0000 Received: from e123331-lin.home (lfbn-mar-1-643-104.w90-118.abo.wanadoo.fr [90.118.215.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4D06821D81; Tue, 5 Nov 2019 20:59:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572987581; bh=h9Dw/DSsxevOFjUh4IhAdPB/u9VWCPHX0aAxfjWMRc8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WlxNPTaF79x59f42viXlOhrJA/AQlgRzCMy4HHnZTyajo5X+0CJQSgMpCotzUaJKQ m35kqfN64HD5rtCLs5BMTcJC8RaJwW+/JjPeDBg9aw7LsE+bWHukMEA/girF9Rezlm R3l/oYmWjgTbPQk6afg2bGivbfAuQheo34GCv0BY= From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Subject: [PATCH for-stable-v4.4 15/53] arm/arm64: smccc: Make function identifiers an unsigned quantity Date: Tue, 5 Nov 2019 21:58:08 +0100 Message-Id: <20191105205846.1394-16-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191105205846.1394-1-ardb@kernel.org> References: <20191105205846.1394-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191105_125942_270725_682DC20D X-CRM114-Status: GOOD ( 11.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Florian Fainelli , Greg Kroah-Hartman , Tony Lindgren , Catalin Marinas , Marc Zyngier , Russell King , Marc Zyngier , Will Deacon , Ard Biesheuvel MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Mark Rutland From: Marc Zyngier commit ded4c39e93f3b72968fdb79baba27f3b83dad34c upstream. Function identifiers are a 32bit, unsigned quantity. But we never tell so to the compiler, resulting in the following: 4ac: b26187e0 mov x0, #0xffffffff80000001 We thus rely on the firmware narrowing it for us, which is not always a reasonable expectation. Reported-by: Ard Biesheuvel Acked-by: Ard Biesheuvel Reviewed-by: Robin Murphy Tested-by: Ard Biesheuvel Signed-off-by: Marc Zyngier Signed-off-by: Catalin Marinas Signed-off-by: Mark Rutland [v4.9 backport] Tested-by: Greg Hackmann Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ard Biesheuvel --- include/linux/arm-smccc.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index e1ef944ef1da..dd44d8458c04 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -14,14 +14,16 @@ #ifndef __LINUX_ARM_SMCCC_H #define __LINUX_ARM_SMCCC_H +#include + /* * This file provides common defines for ARM SMC Calling Convention as * specified in * http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html */ -#define ARM_SMCCC_STD_CALL 0 -#define ARM_SMCCC_FAST_CALL 1 +#define ARM_SMCCC_STD_CALL _AC(0,U) +#define ARM_SMCCC_FAST_CALL _AC(1,U) #define ARM_SMCCC_TYPE_SHIFT 31 #define ARM_SMCCC_SMC_32 0 -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel