Hi Geert, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3fb6d0e00efc958d01c2f109c8453033a2d96796 commit: 0673cb38951215060d7993b43ad3c45cd413c2c3 ARM: 9045/1: uncompress: Validate start of physical memory against passed DTB date: 4 weeks ago config: arm-randconfig-r003-20210226 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b889ef4214bc6dc8880fdd4badc0dcd9a3197753) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0673cb38951215060d7993b43ad3c45cd413c2c3 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 0673cb38951215060d7993b43ad3c45cd413c2c3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> arch/arm/boot/compressed/fdt_check_mem_start.c:62:10: warning: no previous >> prototype for function 'fdt_check_mem_start' [-Wmissing-prototypes] uint32_t fdt_check_mem_start(uint32_t mem_start, const void *fdt) ^ arch/arm/boot/compressed/fdt_check_mem_start.c:62:1: note: declare 'static' if the function is not intended to be used outside of this translation unit uint32_t fdt_check_mem_start(uint32_t mem_start, const void *fdt) ^ static 1 warning generated. vim +/fdt_check_mem_start +62 arch/arm/boot/compressed/fdt_check_mem_start.c 46 47 /* 48 * Check the start of physical memory 49 * 50 * Traditionally, the start address of physical memory is obtained by masking 51 * the program counter. However, this does require that this address is a 52 * multiple of 128 MiB, precluding booting Linux on platforms where this 53 * requirement is not fulfilled. 54 * Hence validate the calculated address against the memory information in the 55 * DTB, and, if out-of-range, replace it by the real start address. 56 * To preserve backwards compatibility (systems reserving a block of memory 57 * at the start of physical memory, kdump, ...), the traditional method is 58 * always used if it yields a valid address. 59 * 60 * Return value: start address of physical memory to use 61 */ > 62 uint32_t fdt_check_mem_start(uint32_t mem_start, const void *fdt) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
