Message ID | 20201023122216.2373294-40-daniel.vetter@ffwll.ch (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Fri, 23 Oct 2020 05:23:09 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id y4sm3056484wrp.74.2020.10.23.05.23.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2020 05:23:09 -0700 (PDT) From: Daniel Vetter <daniel.vetter@ffwll.ch> To: DRI Development <dri-devel@lists.freedesktop.org> Subject: [PATCH 40/65] PCI: Obey iomem restrictions for procfs mmap Date: Fri, 23 Oct 2020 14:21:51 +0200 Message-Id: <20201023122216.2373294-40-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201023122216.2373294-1-daniel.vetter@ffwll.ch> References: <20201021163242.1458885-1-daniel.vetter@ffwll.ch> <20201023122216.2373294-1-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>, linux-mm@kvack.org, Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, linux-pci@vger.kernel.org, Jason Gunthorpe <jgg@ziepe.ca>, =?utf-8?b?SsOp?= =?utf-8?b?csO0bWUgR2xpc3Nl?= <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; 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[01/65] drm/vc4: Drop legacy_cursor_update override
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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)