[hch-misc:swiotlb-init-cleanup 10/11] ld.lld: error: undefined symbol: swiotlb_init_remap

[hch-misc:swiotlb-init-cleanup 10/11] ld.lld: error: undefined symbol: swiotlb_init_remap

[kernel test robot]

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tree:   git://git.infradead.org/users/hch/misc.git swiotlb-init-cleanup
head:   f750d1f8e172aa6649e256f6aadefe27306599e2
commit: 5ff669c8c68185aa0d890f41dab39425272a50bc [10/11] swiotlb: merge swiotlb-xen initialization into swiotlb
config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20220217/202202172113.9LxeRYXK-lkp(a)intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0bad7cb56526f2572c74449fcf97c1fcda42b41d)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add hch-misc git://git.infradead.org/users/hch/misc.git
        git fetch --no-tags hch-misc swiotlb-init-cleanup
        git checkout 5ff669c8c68185aa0d890f41dab39425272a50bc
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: swiotlb_init_remap
   >>> referenced by pci-dma.c:86 (arch/x86/kernel/pci-dma.c:86)
   >>> kernel/pci-dma.o:(pci_iommu_alloc) in archive arch/x86/built-in.a

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org