Hi Dan, I love your patch! Yet something to improve: [auto build test ERROR on a38fd8748464831584a19438cbb3082b5a2dab15] url: https://github.com/0day-ci/linux/commits/Dan-Williams/CXL-Port-Enumeration/20210402-025333 base: a38fd8748464831584a19438cbb3082b5a2dab15 config: ia64-randconfig-r016-20210401 (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 # https://github.com/0day-ci/linux/commit/84c25f52c3c7f8f20988e98eb9947c4eace11927 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dan-Williams/CXL-Port-Enumeration/20210402-025333 git checkout 84c25f52c3c7f8f20988e98eb9947c4eace11927 # 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@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from drivers/cxl/core.c:7: >> drivers/cxl/cxl.h:84:15: error: field 'range' has incomplete type 84 | struct range range; | ^~~~~ drivers/cxl/core.c: In function 'devm_cxl_add_root': >> drivers/cxl/core.c:343:8: error: implicit declaration of function 'range_len' [-Werror=implicit-function-declaration] 343 | if (!range_len(&space->range)) | ^~~~~~~~~ drivers/cxl/core.c: In function 'end_show': drivers/cxl/core.c:56:1: error: control reaches end of non-void function [-Werror=return-type] 56 | } | ^ drivers/cxl/core.c: In function 'start_show': drivers/cxl/core.c:47:1: error: control reaches end of non-void function [-Werror=return-type] 47 | } | ^ cc1: some warnings being treated as errors -- In file included from drivers/cxl/acpi.c:8: >> drivers/cxl/cxl.h:84:15: error: field 'range' has incomplete type 84 | struct range range; | ^~~~~ vim +/range +84 drivers/cxl/cxl.h 82 83 struct cxl_address_space { > 84 struct range range; 85 int interleave_size; 86 unsigned long flags; 87 unsigned long targets; 88 }; 89 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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