[kbuild-all] [hch-misc:swiotlb-init-cleanup 7/11] pci-dma.c:undefined reference to `swiotlb_print_info'

tree: git://git.infradead.org/users/hch/misc.git swiotlb-init-cleanup head: f750d1f8e172aa6649e256f6aadefe27306599e2 commit: 05b42fab22bc70a6d283212fa139960be4d9a2e5 [7/11] x86: remove the IOMMU table infrastructure config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20220217/202202172027.3hKJuRhq-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add hch-misc git://git.infradead.org/users/hch/misc.git git fetch --no-tags hch-misc swiotlb-init-cleanup git checkout 05b42fab22bc70a6d283212fa139960be4d9a2e5 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld: arch/x86/kernel/pci-dma.o: in function `pci_iommu_init': ld: arch/x86/kernel/pci-dma.o: in function `pci_iommu_alloc': pci-dma.c:(.init.text+0x21a): undefined reference to `swiotlb_init' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org