Hi Krzysztof, It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9fb4c5250f10dc4d8257cd766991be690eb25c5b commit: e18a8c104d777af46aa5c8573c8a19ba2b5de597 ia64: Hide the archdata.iommu field behind generic IOMMU_API date: 8 days ago config: ia64-randconfig-r006-20200604 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 checkout e18a8c104d777af46aa5c8573c8a19ba2b5de597 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All errors (new ones prefixed by >>, old ones prefixed by <<): ia64-linux-ld: arch/ia64/kernel/elfcore.o: in function `elf_core_write_extra_phdrs': >> elfcore.c:(.text+0x172): undefined reference to `dump_emit' ia64-linux-ld: arch/ia64/kernel/elfcore.o: in function `elf_core_write_extra_data': elfcore.c:(.text+0x2b2): undefined reference to `dump_emit' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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