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Thu, 20 Nov 2025 02:18:15 -0800 (PST) Date: Thu, 20 Nov 2025 02:18:15 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <691eeae7.a70a0220.2ea503.002b.GAE@google.com> Subject: [moderation/CI] Re: vfio/pci: Allow MMIO regions to be exported through dma-buf From: syzbot ci To: syzkaller-upstream-moderation@googlegroups.com Cc: syzbot@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot ci has tested the following series [v9] vfio/pci: Allow MMIO regions to be exported through dma-buf https://lore.kernel.org/all/20251120-dmabuf-vfio-v9-0-d7f71607f371@nvidia.c= om * [PATCH v9 01/11] PCI/P2PDMA: Separate the mmap() support from the core lo= gic * [PATCH v9 02/11] PCI/P2PDMA: Simplify bus address mapping API * [PATCH v9 03/11] PCI/P2PDMA: Refactor to separate core P2P functionality = from memory allocation * [PATCH v9 04/11] PCI/P2PDMA: Provide an access to pci_p2pdma_map_type() f= unction * [PATCH v9 05/11] PCI/P2PDMA: Document DMABUF model * [PATCH v9 06/11] dma-buf: provide phys_vec to scatter-gather mapping rout= ine * [PATCH v9 07/11] vfio: Export vfio device get and put registration helper= s * [PATCH v9 08/11] vfio/pci: Share the core device pointer while invoking f= eature functions * [PATCH v9 09/11] vfio/pci: Enable peer-to-peer DMA transactions by defaul= t * [PATCH v9 10/11] vfio/pci: Add dma-buf export support for MMIO regions * [PATCH v9 11/11] vfio/nvgrace: Support get_dmabuf_phys and found the following issue: kernel build error Full report is available here: https://ci.syzbot.org/series/1b6bcea6-55a2-4bf7-b93b-af482815e27c *** kernel build error tree: kvm-next URL: https://kernel.googlesource.com/pub/scm/virt/kvm/kvm/ base: 6b36119b94d0b2bb8cea9d512017efafd461d6ac arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp= 1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/7cbb4e39-549a-467b-b6de-b320718d285= 8/config drivers/dma-buf/dma-buf-mapping.c:150:10: error: use of undeclared identifi= er 'DMA_ATTR_MMIO' drivers/dma-buf/dma-buf-mapping.c:156:11: error: call to undeclared functio= n 'dma_map_phys'; ISO C99 and later do not support implicit function declar= ations [-Wimplicit-function-declaration] drivers/dma-buf/dma-buf-mapping.c:158:10: error: use of undeclared identifi= er 'DMA_ATTR_MMIO' drivers/dma-buf/dma-buf-mapping.c:198:6: error: use of undeclared identifie= r 'DMA_ATTR_MMIO' drivers/dma-buf/dma-buf-mapping.c:201:4: error: call to undeclared function= 'dma_unmap_phys'; ISO C99 and later do not support implicit function decla= rations [-Wimplicit-function-declaration] drivers/dma-buf/dma-buf-mapping.c:202:34: error: use of undeclared identifi= er 'DMA_ATTR_MMIO' drivers/dma-buf/dma-buf-mapping.c:234:6: error: use of undeclared identifie= r 'DMA_ATTR_MMIO' drivers/dma-buf/dma-buf-mapping.c:239:4: error: call to undeclared function= 'dma_unmap_phys'; ISO C99 and later do not support implicit function decla= rations [-Wimplicit-function-declaration] drivers/dma-buf/dma-buf-mapping.c:240:34: error: use of undeclared identifi= er 'DMA_ATTR_MMIO' *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. The email will later be sent to: [akpm@linux-foundation.org alex@shazbot.org amastro@fb.com ankita@nvidia.co= m axboe@kernel.dk bhelgaas@google.com christian.koenig@amd.com corbet@lwn.n= et dri-devel@lists.freedesktop.org gustavoars@kernel.org iommu@lists.linux.= dev jgg@nvidia.com jgg@ziepe.ca joro@8bytes.org kees@kernel.org kevin.tian@= intel.com kjaju@nvidia.com kvm@vger.kernel.org leon@kernel.org linaro-mm-si= g@lists.linaro.org linux-block@vger.kernel.org linux-doc@vger.kernel.org li= nux-hardening@vger.kernel.org linux-kernel@vger.kernel.org linux-media@vger= .kernel.org linux-mm@kvack.org linux-pci@vger.kernel.org logang@deltatee.co= m m.szyprowski@samsung.com mochs@nvidia.com nicolinc@nvidia.com robin.murph= y@arm.com skolothumtho@nvidia.com sumit.semwal@linaro.org vivek.kasireddy@i= ntel.com will@kernel.org yishaih@nvidia.com] If the report looks fine to you, reply with: #syz upstream