From patchwork Thu Mar 19 13:04:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 229003 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 B2FDAC4332B for ; Thu, 19 Mar 2020 13:30:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7CEA420409 for ; Thu, 19 Mar 2020 13:30:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584624638; bh=1sBIkeTKIfNbKJsAZXXIYq07vCvmoC9l+d3drbBYvkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0oTGG/owQQuz4MXFqh7fJwUwNJOzqo+XOJD9jOlLVIuErsIIpc4DCyyo+u/xhlevX FgLrmeeb6bzSLNnZTiy7EZHniB/z/8WUSQFwV8mIRPEa2JhObd6luEyEWUd5islZWI Rst7JIGlJ9IwzscUvcOlsBvMlWgGkX1MXeGRqJVw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729651AbgCSNVA (ORCPT ); Thu, 19 Mar 2020 09:21:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:45384 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730043AbgCSNU7 (ORCPT ); Thu, 19 Mar 2020 09:20:59 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E737B20724; Thu, 19 Mar 2020 13:20:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584624059; bh=1sBIkeTKIfNbKJsAZXXIYq07vCvmoC9l+d3drbBYvkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YkAwN4wgHERiMri46xDIEePb39+PgKbzkPhXs08GPNkfd/2Mm4Tli1YHUywgdZ31t YH55p2WfODXrhRaSHqstmGzqvYLW5Qi9xyKXXOblNPBCDX8QRYmfvKGTaZ0vUhBP6n 3adLVcAG+jfB0Bcu9MOLNDosKXUc0q867eKv8zAI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Fainelli , Russell King Subject: [PATCH 4.19 43/48] ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() Date: Thu, 19 Mar 2020 14:04:25 +0100 Message-Id: <20200319123916.335652762@linuxfoundation.org> X-Mailer: git-send-email 2.25.2 In-Reply-To: <20200319123902.941451241@linuxfoundation.org> References: <20200319123902.941451241@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Fainelli commit 45939ce292b4b11159719faaf60aba7d58d5fe33 upstream. It is possible for a system with an ARMv8 timer to run a 32-bit kernel. When this happens we will unconditionally have the vDSO code remove the __vdso_gettimeofday and __vdso_clock_gettime symbols because cntvct_functional() returns false since it does not match that compatibility string. Fixes: ecf99a439105 ("ARM: 8331/1: VDSO initialization, mapping, and synchronization") Signed-off-by: Florian Fainelli Signed-off-by: Russell King Signed-off-by: Greg Kroah-Hartman --- arch/arm/kernel/vdso.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -104,6 +104,8 @@ static bool __init cntvct_functional(voi */ np = of_find_compatible_node(NULL, NULL, "arm,armv7-timer"); if (!np) + np = of_find_compatible_node(NULL, NULL, "arm,armv8-timer"); + if (!np) goto out_put; if (of_property_read_bool(np, "arm,cpu-registers-not-fw-configured"))