tree: git://people.freedesktop.org/~agd5f/linux.git amd-mainline-dkms-5.4 head: fa14e19bd78eecca201da26d22c7b95ee06769c6 commit: 9e7eb67ba35568772b9f1d1d0f4978b92f712a52 [1212/2653] drm/amdkcl: [4.12] Reserve flip_flags for display usage config: c6x-allyesconfig (attached as .config) compiler: c6x-elf-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 9e7eb67ba35568772b9f1d1d0f4978b92f712a52 # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=c6x

If you fix the issue, kindly add following tag Reported-by: kbuild test robot lkp@intel.com

All error/warnings (new ones prefixed by >>):

In file included from <command-line>:

...

include/kcl/kcl_bitops.h:5:5: warning: "BITS_PER_LONG" is not defined, evaluates to 0 [-Wundef]

5 | #if BITS_PER_LONG == 32 | ^~~~~~~~~~~~~ include/kcl/kcl_bitops.h:7:7: warning: "BITS_PER_LONG" is not defined, evaluates to 0 [-Wundef] 7 | #elif BITS_PER_LONG == 64 | ^~~~~~~~~~~~~

...

include/kcl/kcl_bitops.h:10:3: error: #error "Unexpected BITS_PER_LONG"

10 | # error "Unexpected BITS_PER_LONG" | ^~~~~

vim +10 include/kcl/kcl_bitops.h

3 4 #ifndef _BITOPS_LONG_SHIFT

5 #if BITS_PER_LONG == 32

6 # define _BITOPS_LONG_SHIFT 5 7 #elif BITS_PER_LONG == 64 8 # define _BITOPS_LONG_SHIFT 6 9 #else

10 # error "Unexpected BITS_PER_LONG"

11 #endif 12 #endif 13

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