Message ID | 20201119144146.1045202-12-daniel.vetter@ffwll.ch (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=yL0P=EZ=lists.freedesktop.org=dri-devel-bounces@kernel.org> 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 85F69C6379D for <dri-devel@archiver.kernel.org>; Thu, 19 Nov 2020 14:42:28 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 12D3F24706 for <dri-devel@archiver.kernel.org>; Thu, 19 Nov 2020 14:42:28 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Thu, 19 Nov 2020 06:42:08 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id x63sm51292wmb.48.2020.11.19.06.42.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Nov 2020 06:42:07 -0800 (PST) From: Daniel Vetter <daniel.vetter@ffwll.ch> To: DRI Development <dri-devel@lists.freedesktop.org>, LKML <linux-kernel@vger.kernel.org> Subject: [PATCH v6 11/17] PCI: Obey iomem restrictions for procfs mmap Date: Thu, 19 Nov 2020 15:41:40 +0100 Message-Id: <20201119144146.1045202-12-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201119144146.1045202-1-daniel.vetter@ffwll.ch> References: <20201119144146.1045202-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development <dri-devel.lists.freedesktop.org> List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>, <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe> List-Archive: <https://lists.freedesktop.org/archives/dri-devel> List-Post: <mailto:dri-devel@lists.freedesktop.org> List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help> List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>, <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe> Cc: linux-samsung-soc@vger.kernel.org, Jan Kara <jack@suse.cz>, Kees Cook <keescook@chromium.org>, kvm@vger.kernel.org, Jason Gunthorpe <jgg@ziepe.ca>, Daniel Vetter <daniel.vetter@ffwll.ch>, linux-pci@vger.kernel.org, linux-mm@kvack.org, =?utf-8?b?SsOpcsO0bWUgR2xp?= =?utf-8?b?c3Nl?= <jglisse@redhat.com>, John Hubbard <jhubbard@nvidia.com>, Bjorn Helgaas <bhelgaas@google.com>, Daniel Vetter <daniel.vetter@intel.com>, Dan Williams <dan.j.williams@intel.com>, Andrew Morton <akpm@linux-foundation.org>, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org> |
Series |
follow_pfn and other iomap races
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expand
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diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index d35186b01d98..3a2f90beb4cb 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -274,6 +274,11 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma) else return -EINVAL; } + + if (dev->resource[i].flags & IORESOURCE_MEM && + iomem_is_exclusive(dev->resource[i].start)) + return -EINVAL; + ret = pci_mmap_page_range(dev, i, vma, fpriv->mmap_state, write_combine); if (ret < 0)