Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.9-rc6 next-20240430] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/skseofh-gmail-com/of-of_reserved_mem-clean-up-reserved-memory-with-no-map/20240430-144643 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240428125505.434962-1-skseofh%40gmail.com patch subject: [PATCH] of: of_reserved_mem: clean-up reserved memory with no-map config: arm-defconfig (https://download.01.org/0day-ci/archive/20240501/202405011208.qsZQwChO-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240501/202405011208.qsZQwChO-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405011208.qsZQwChO-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/of/of_reserved_mem.c:95:4: warning: non-void function 'early_init_dt_reserve_memory' should return a value [-Wreturn-type] return; ^ 1 warning generated. vim +/early_init_dt_reserve_memory +95 drivers/of/of_reserved_mem.c 80 81 static int __init early_init_dt_reserve_memory(phys_addr_t base, 82 phys_addr_t size, bool nomap) 83 { 84 if (nomap) { 85 /* 86 * If the memory is already reserved (by another region), we 87 * should not allow it to be marked nomap, but don't worry 88 * if the region isn't memory as it won't be mapped. 89 */ 90 if (memblock_overlaps_region(&memblock.memory, base, size) && 91 memblock_is_region_reserved(base, size)) 92 return -EBUSY; 93 94 if (memblock_mark_nomap(base, size)) > 95 return; 96 } 97 return memblock_reserve(base, size); 98 } 99 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
