From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2899084-1519909323-2-583688679516492483 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1519909322; b=IoMuVWOxypooYJgqoM9PmsmNdItPqbXvLlA8dGVpVkhh0+m TeZctKiw7S1qo9lvr7tWe2zLKuH896jv6uN/o1sRsgC24+nNjn2EDnL9GrTiHBg8 ypU7F5IfyTZcYrejrf4jmNpNIHsoVbbuIO+/0Z2+OKV1/2o6aBrdzz7fksi4IAB1 CNNhloa+p6cRHt/tNV8E61qGDKVcx+FgXVpJ1oWEe1Tw8TDY8eoliZYNoD4kSBUi wnndb2NDnJkip7+VldcnXKjMjWMsH+bgs0keZsV/48KzreVHtNv1glbkcfQAF3Q7 Nj3SO4GK4GgZGv5YmL9SJTi4uRNX+9/HM3xnrqg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=arctest; t=1519909322; bh=xjpJ8k7CKNbvTvoCWi2+8tjs1SrG8L5eeUCBFmDTG3o=; b=eJsywULthrMj tBYIHqaQpzRp+owLbZGbRSbz9xIkBcSCBVCCBu2qRu8M5b7mp0BvbExVUglNf21S 1f0ThLnA/mFdxrSlIz6pbURDe0tjNnPaSJJpEjGLBD/5e+6ajn9tXPUcAG5yhMMq vv5vle0/IvYqdupXn7CDbminJhI/uygmE0Rc1auLWdB71jaxCOdPvpM14TmlB0hR d3uSD37lRiQszkRdn2rXkep+VesteMyW9w9oSa2svJilFQC+R2txDHsFSqH63ynD foKgxSlhdp2avHrr5BeR+bnO8/65OR1DIpm2PxEdMfNHajsVeuKboOXrOaeJHsCF 51zBFyFT+w== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=linaro.org header.i=@linaro.org header.b=ULhcJObd x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=google; dmarc=pass (p=none,has-list-id=yes,d=none) header.from=linaro.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=OAvZvRpc; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linaro.org header.result=pass header_is_org_domain=yes Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=linaro.org header.i=@linaro.org header.b=ULhcJObd x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=google; dmarc=pass (p=none,has-list-id=yes,d=none) header.from=linaro.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=OAvZvRpc; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linaro.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030850AbeCANBA (ORCPT ); Thu, 1 Mar 2018 08:01:00 -0500 Received: from mail-pf0-f193.google.com ([209.85.192.193]:43078 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030312AbeCANA6 (ORCPT ); Thu, 1 Mar 2018 08:00:58 -0500 X-Google-Smtp-Source: AG47ELtk5UIblqE4EjZZZmblxyUl0egcP/ETuZdAP2NsG4qBYpoepQrn4DXTcsQu6PMQDGoCf3OtFA== From: Alex Shi To: Marc Zyngier , Will Deacon , Ard Biesheuvel , Catalin Marinas , stable@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Alex Shi Subject: [PATCH 42/45] arm/arm64: smccc: Make function identifiers an unsigned quantity Date: Thu, 1 Mar 2018 20:54:19 +0800 Message-Id: <1519908862-11425-43-git-send-email-alex.shi@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1519908862-11425-1-git-send-email-alex.shi@linaro.org> References: <1519908862-11425-1-git-send-email-alex.shi@linaro.org> Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Marc Zyngier commit ded4c39e93f3 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. Cc: stable@vger.kernel.org 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: Will Deacon Signed-off-by: Alex Shi --- 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 e1ef944..dd44d84 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 -- 2.7.4