Hi Anshuman, Thank you for the patch! Yet something to improve: [auto build test ERROR on v5.8-rc2] [also build test ERROR on next-20200623] [cannot apply to arm64/for-next/core] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Anshuman-Khandual/arm64-hugetlb-Reserve-CMA-areas-for-gigantic-pages-on-16K-and-64K-configs/20200623-142507 base: 48778464bb7d346b47157d21ffde2af6b2d39110 config: arm64-allnoconfig (attached as .config) compiler: aarch64-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/arm64/mm/init.c: In function 'bootmem_init': >> arch/arm64/mm/init.c:428:2: error: implicit declaration of function 'arm64_hugetlb_cma_reserve'; did you mean 'hugetlb_cma_reserve'? [-Werror=implicit-function-declaration] 428 | arm64_hugetlb_cma_reserve(); | ^~~~~~~~~~~~~~~~~~~~~~~~~ | hugetlb_cma_reserve cc1: some warnings being treated as errors vim +428 arch/arm64/mm/init.c 408 409 void __init bootmem_init(void) 410 { 411 unsigned long min, max; 412 413 min = PFN_UP(memblock_start_of_DRAM()); 414 max = PFN_DOWN(memblock_end_of_DRAM()); 415 416 early_memtest(min << PAGE_SHIFT, max << PAGE_SHIFT); 417 418 max_pfn = max_low_pfn = max; 419 min_low_pfn = min; 420 421 arm64_numa_init(); 422 423 /* 424 * must be done after arm64_numa_init() which calls numa_init() to 425 * initialize node_online_map that gets used in hugetlb_cma_reserve() 426 * while allocating required CMA size across online nodes. 427 */ > 428 arm64_hugetlb_cma_reserve(); 429 430 /* 431 * Sparsemem tries to allocate bootmem in memory_present(), so must be 432 * done after the fixed reservations. 433 */ 434 memblocks_present(); 435 436 sparse_init(); 437 zone_sizes_init(min, max); 438 439 memblock_dump_all(); 440 } 441 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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