Messages in this thread | | | Date | Thu, 4 Jun 2020 21:48:35 +0200 | From | Krzysztof Kozlowski <> | Subject | Re: elfcore.c:undefined reference to `dump_emit' |
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On Fri, Jun 05, 2020 at 02:38:01AM +0800, kernel test robot wrote: > 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 <lkp@intel.com> > > 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'
Thanks for the report. Error was there already, before my commits.
Mentioned commit e18a8c104d77 ("ia64: Hide the archdata.iommu field behind generic IOMMU_API") was a fix for commit e93a1695d7fb ("iommu: Enable compile testing for some of drivers"). After reverting both of them (so reverting compile testing and the fix), the error is visible.
Best regards, Krzysztof
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