[drm-tip:drm-tip 144/320] debug.c:undefined reference to `save_stack_trace'

[kbuild test robot <lkp@intel.com>]

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Hi Daniel,

FYI, the error/warning still remains.

tree:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
head:   1b18cb66428cffa748719cf900b2decac3690029
commit: 7928ca5cc786fdc0269342f1b9e22c2af939b989 [144/320] RFC: debugobjects: capture stack traces at _init() time
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 7928ca5cc786fdc0269342f1b9e22c2af939b989
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=m68k 
:::::: branch date: 9 hours ago
:::::: commit date: 3 weeks ago

All errors (new ones prefixed by >>):

   kernel/dma/debug.o: In function `dma_entry_alloc':
>> debug.c:(.text+0x11c2): undefined reference to `save_stack_trace'
   kernel/backtracetest.o: In function `backtrace_regression_test':
   backtracetest.c:(.text+0xd8): undefined reference to `save_stack_trace'
   mm/slub.o: In function `set_track':
>> slub.c:(.text+0x12b4): undefined reference to `save_stack_trace'
   fs/btrfs/ref-verify.o: In function `btrfs_ref_tree_mod':
   ref-verify.c:(.text+0x92e): undefined reference to `save_stack_trace'
   lib/debugobjects.o: In function `save_stack.isra.0':
>> debugobjects.c:(.text+0x9f2): undefined reference to `save_stack_trace'

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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