From patchwork Mon Mar 15 13:57:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 401339 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 A6754C433DB for ; Mon, 15 Mar 2021 14:04:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 82AA664F2B for ; Mon, 15 Mar 2021 14:04:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234551AbhCOOET (ORCPT ); Mon, 15 Mar 2021 10:04:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:37836 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233111AbhCOOAl (ORCPT ); Mon, 15 Mar 2021 10:00:41 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2264764F60; Mon, 15 Mar 2021 14:00:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816828; bh=yKZMqNKvKWWwmgkoU/8XA+yHZ6FzVxkpknfrU+Uy5WQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uWcqAfn0eK8WlaP7vj0qh7gp22X47jJesuez/6+Q4v0b3Y0IpLA2joL+eRJNgTJtV ew5FAy/CMFR1Xn7t8XV3pGAG03U6c0vQguXx2fPAjAsQDpwuecQGdFZU2phN7JXy4f k+sPeABOfVcDM42CkJsCCBK71KPWayiWAGeQ5Hmk= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jiri Olsa , "Naveen N. Rao" , Segher Boessenkool , Michael Ellerman Subject: [PATCH 4.14 88/95] powerpc/64s: Fix instruction encoding for lis in ppc_function_entry() Date: Mon, 15 Mar 2021 14:57:58 +0100 Message-Id: <20210315135743.177729422@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135740.245494252@linuxfoundation.org> References: <20210315135740.245494252@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Naveen N. Rao commit cea15316ceee2d4a51dfdecd79e08a438135416c upstream. 'lis r2,N' is 'addis r2,0,N' and the instruction encoding in the macro LIS_R2 is incorrect (it currently maps to 'addis r0,r2,N'). Fix the same. Fixes: c71b7eff426f ("powerpc: Add ABIv2 support to ppc_function_entry") Cc: stable@vger.kernel.org # v3.16+ Reported-by: Jiri Olsa Signed-off-by: Naveen N. Rao Acked-by: Segher Boessenkool Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210304020411.16796-1-naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/include/asm/code-patching.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -51,7 +51,7 @@ void __patch_exception(int exc, unsigned #endif #define OP_RT_RA_MASK 0xffff0000UL -#define LIS_R2 0x3c020000UL +#define LIS_R2 0x3c400000UL #define ADDIS_R2_R12 0x3c4c0000UL #define ADDI_R2_R2 0x38420000UL