Hi Jean-Philippe, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.16-rc2 next-20180221] [cannot apply to iommu/next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Jean-Philippe-Brucker/Add-virtio-iommu-driver/20180217-075417 config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=ia64 All errors (new ones prefixed by >>): drivers/iommu/virtio-iommu.o: In function `viommu_send_reqs_sync': >> virtio-iommu.c:(.text+0xa82): undefined reference to `virtqueue_add_sgs' >> virtio-iommu.c:(.text+0xb52): undefined reference to `virtqueue_kick' >> virtio-iommu.c:(.text+0xd82): undefined reference to `virtqueue_get_buf' drivers/iommu/virtio-iommu.o: In function `viommu_probe': >> virtio-iommu.c:(.text+0x23f2): undefined reference to `virtio_check_driver_offered_feature' virtio-iommu.c:(.text+0x2572): undefined reference to `virtio_check_driver_offered_feature' virtio-iommu.c:(.text+0x26f2): undefined reference to `virtio_check_driver_offered_feature' drivers/iommu/virtio-iommu.o: In function `virtio_iommu_drv_init': >> virtio-iommu.c:(.init.text+0x22): undefined reference to `register_virtio_driver' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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