Hi Jason, I love your patch! Yet something to improve: [auto build test ERROR on vhost/linux-next] [also build test ERROR on linux/master linus/master v5.5-rc6 next-20200117] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-support/20200117-170243 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config: i386-randconfig-g003-20200117 (attached as .config) compiler: gcc-7 (Debian 7.5.0-3) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: drivers/vhost/vhost.o: in function `vhost_dev_reset_owner_prepare': >> (.text+0x18b): undefined reference to `vhost_iotlb_alloc' ld: drivers/vhost/vhost.o: in function `vhost_init_device_iotlb': (.text+0x204): undefined reference to `vhost_iotlb_alloc' >> ld: (.text+0x26c): undefined reference to `vhost_iotlb_free' ld: drivers/vhost/vhost.o: in function `iotlb_access_ok': >> vhost.c:(.text+0x60e): undefined reference to `vhost_iotlb_itree_first' ld: drivers/vhost/vhost.o: in function `translate_desc': vhost.c:(.text+0x85f): undefined reference to `vhost_iotlb_itree_first' ld: drivers/vhost/vhost.o: in function `vhost_dev_cleanup': >> (.text+0xd4a): undefined reference to `vhost_iotlb_free' ld: (.text+0xd59): undefined reference to `vhost_iotlb_free' ld: drivers/vhost/vhost.o: in function `vhost_chr_write_iter': >> (.text+0x1c3b): undefined reference to `vhost_iotlb_del_range' >> ld: (.text+0x1d78): undefined reference to `vhost_iotlb_add_range' ld: drivers/vhost/vhost.o: in function `vhost_dev_ioctl': (.text+0x3d6d): undefined reference to `vhost_iotlb_alloc' ld: (.text+0x3dd5): undefined reference to `vhost_iotlb_add_range' ld: (.text+0x3de4): undefined reference to `vhost_iotlb_free' ld: (.text+0x3e7e): undefined reference to `vhost_iotlb_free' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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