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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 54EEECA9EA0 for ; Mon, 4 Nov 2019 10:13:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2407B20578 for ; Mon, 4 Nov 2019 10:13:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572862404; bh=bX/ffXzRUxX+UKb6fExqdO4FL6hOCzrJuhzpL0ncbqU=; h=Subject:To:Cc:From:Date:List-ID:From; b=LcDsCt4YJwTlvapbhSlOcUp8hA5TY8dp1h4kUsi7oGOmhr3bZLbTOMlqtbVZdGag9 JFvFGIhxTcpKIVAvQTXhQ9ZYdwmP3nxwzSgT0//q8PiCyalTwhpqxCiWSg5Dyh/CzY KBuFlqpMmKko98FBTwIyxmbIk6sQNE0EHR3AEf5w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728427AbfKDKNX (ORCPT ); Mon, 4 Nov 2019 05:13:23 -0500 Received: from out3-smtp.messagingengine.com ([66.111.4.27]:47677 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727320AbfKDKNX (ORCPT ); Mon, 4 Nov 2019 05:13:23 -0500 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 8E04B213CA; Mon, 4 Nov 2019 05:13:22 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Mon, 04 Nov 2019 05:13:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:message-id:mime-version:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=80vh3g OvTmHFxL5SZF3X5epTaeMUMx9ttAbIxzvuUkk=; b=uciGH5A1Ye3Z5prpscKkfu FiUvqPQsOAES4487xOxocyFCM9YCMZzPQWLrsBlqjUHZwpbXL6PyW7+NDfV9N+Ee UWAp25GVL5T+f20UDyfXJs6gq5x4HxJNnQq/MeUk6oGHewtuFNAm93DkrNezgNA1 WhSayg25/ZqO2+zcJyGTbu5T7AFUqTCoJqLcXGI0Pk0G3fIyGn53Nab9UnDkIsmE Zz4e7bOT+ERaNFWA2ZGZ4wXRsMWPdcAJzPz7xI1703Y8veL0fhKE5IKlgHl4mZ8F oLxR8JjZ0gwNXjmoB7xtF7w3FyNarZpfidSdnPYxDTn1EJLk/OPOQzymFEhfl/pg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedufedruddufedgudefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefuvffhfffkgggtgfesthekredttd dtlfenucfhrhhomhepoehgrhgvghhkhheslhhinhhugihfohhunhgurghtihhonhdrohhr gheqnecukfhppeekfedrkeeirdekledruddtjeenucfrrghrrghmpehmrghilhhfrhhomh epghhrvghgsehkrhhorghhrdgtohhmnecuvehluhhsthgvrhfuihiivgeptd X-ME-Proxy: Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) by mail.messagingengine.com (Postfix) with ESMTPA id C6FE0306005C; Mon, 4 Nov 2019 05:13:21 -0500 (EST) Subject: FAILED: patch "[PATCH] drm/etnaviv: fix dumping of iommuv2" failed to apply to 4.9-stable tree To: christian.gmeiner@gmail.com, l.stach@pengutronix.de Cc: From: Date: Mon, 04 Nov 2019 11:13:18 +0100 Message-ID: <1572862398183106@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a2f10d4a3069fee666dab20fab5458757ba1f22d Mon Sep 17 00:00:00 2001 From: Christian Gmeiner Date: Fri, 25 Oct 2019 12:39:10 +0200 Subject: [PATCH] drm/etnaviv: fix dumping of iommuv2 etnaviv_iommuv2_dump_size(..) returns the number of PTE * SZ_4K but etnaviv_iommuv2_dump(..) increments buf pointer even if there is no PTE. This results in a bad buf pointer which gets used for memcpy(..), when copying the MMU state in the coredump buffer. Fixes: afb7b3b1deb4 ("drm/etnaviv: implement IOMMUv2 translation") Cc: stable@vger.kernel.org Signed-off-by: Christian Gmeiner Signed-off-by: Lucas Stach diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c index 043111a1d60c..f8bf488e9d71 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c @@ -155,9 +155,11 @@ static void etnaviv_iommuv2_dump(struct etnaviv_iommu_context *context, void *bu memcpy(buf, v2_context->mtlb_cpu, SZ_4K); buf += SZ_4K; - for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++, buf += SZ_4K) - if (v2_context->mtlb_cpu[i] & MMUv2_PTE_PRESENT) + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) + if (v2_context->mtlb_cpu[i] & MMUv2_PTE_PRESENT) { memcpy(buf, v2_context->stlb_cpu[i], SZ_4K); + buf += SZ_4K; + } } static void etnaviv_iommuv2_restore_nonsec(struct etnaviv_gpu *gpu,