tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: dee7f101b64219f512bb2f842227bd04c14efe30 commit: 2d974d2671121272dbe8142e11c6a5ec28123d21 [13132/13536] LoongArch: Use correct API to map cmdline in relocate_kernel() config: loongarch-randconfig-r122-20240722 (https://download.01.org/0day-ci/archive/20240723/202407231154.QJTaxbpZ-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240723/202407231154.QJTaxbpZ-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/202407231154.QJTaxbpZ-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> arch/loongarch/kernel/relocate.c:212:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __iomem *addr @@ got char *cmdline @@ arch/loongarch/kernel/relocate.c:212:24: sparse: expected void [noderef] __iomem *addr arch/loongarch/kernel/relocate.c:212:24: sparse: got char *cmdline vim +212 arch/loongarch/kernel/relocate.c 194 195 unsigned long __init relocate_kernel(void) 196 { 197 unsigned long kernel_length; 198 unsigned long random_offset = 0; 199 void *location_new = _text; /* Default to original kernel start */ 200 char *cmdline = early_memremap_ro(fw_arg1, COMMAND_LINE_SIZE); /* Boot command line is passed in fw_arg1 */ 201 202 strscpy(boot_command_line, cmdline, COMMAND_LINE_SIZE); 203 204 #ifdef CONFIG_RANDOMIZE_BASE 205 location_new = determine_relocation_address(); 206 207 /* Sanity check relocation address */ 208 if (relocation_addr_valid(location_new)) 209 random_offset = (unsigned long)location_new - (unsigned long)(_text); 210 #endif 211 reloc_offset = (unsigned long)_text - VMLINUX_LOAD_ADDRESS; > 212 early_memunmap(cmdline, COMMAND_LINE_SIZE); 213 214 if (random_offset) { 215 kernel_length = (long)(_end) - (long)(_text); 216 217 /* Copy the kernel to it's new location */ 218 memcpy(location_new, _text, kernel_length); 219 220 /* Sync the caches ready for execution of new kernel */ 221 __asm__ __volatile__ ( 222 "ibar 0 \t\n" 223 "dbar 0 \t\n" 224 ::: "memory"); 225 226 reloc_offset += random_offset; 227 228 /* The current thread is now within the relocated kernel */ 229 __current_thread_info = RELOCATED_KASLR(__current_thread_info); 230 231 update_reloc_offset(&reloc_offset, random_offset); 232 } 233 234 if (reloc_offset) 235 relocate_relative(); 236 237 relocate_absolute(random_offset); 238 239 return random_offset; 240 } 241 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
