Hi Sourabh, Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next] [also build test ERROR on linux/master linus/master v5.15-rc3 next-20210922] [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] url: https://github.com/0day-ci/linux/commits/Sourabh-Jain/Update-crashkernel-offset-to-allow-kernel-to-boot-on-large-config-LPARs/20211004-233345 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-buildonly-randconfig-r004-20211004 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 11.2.0 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/563e715d022b3fab0f1791f64c3944aa34d20f04 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sourabh-Jain/Update-crashkernel-offset-to-allow-kernel-to-boot-on-large-config-LPARs/20211004-233345 git checkout 563e715d022b3fab0f1791f64c3944aa34d20f04 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): arch/powerpc/kernel/prom.c: In function 'early_init_dt_scan_cpus': >> arch/powerpc/kernel/prom.c:389:17: error: implicit declaration of function >> 'hash__early_detect_seg_size' [-Werror=implicit-function-declaration] 389 | hash__early_detect_seg_size(); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/hash__early_detect_seg_size +389 arch/powerpc/kernel/prom.c 307 308 static int __init early_init_dt_scan_cpus(unsigned long node, 309 const char *uname, int depth, 310 void *data) 311 { 312 const char *type = of_get_flat_dt_prop(node, "device_type", NULL); 313 const __be32 *prop; 314 const __be32 *intserv; 315 int i, nthreads; 316 int len; 317 int found = -1; 318 int found_thread = 0; 319 320 /* We are scanning "cpu" nodes only */ 321 if (type == NULL || strcmp(type, "cpu") != 0) 322 return 0; 323 324 /* Get physical cpuid */ 325 intserv = of_get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s", &len); 326 if (!intserv) 327 intserv = of_get_flat_dt_prop(node, "reg", &len); 328 329 nthreads = len / sizeof(int); 330 331 /* 332 * Now see if any of these threads match our boot cpu. 333 * NOTE: This must match the parsing done in smp_setup_cpu_maps. 334 */ 335 for (i = 0; i < nthreads; i++) { 336 if (be32_to_cpu(intserv[i]) == 337 fdt_boot_cpuid_phys(initial_boot_params)) { 338 found = boot_cpu_count; 339 found_thread = i; 340 } 341 #ifdef CONFIG_SMP 342 /* logical cpu id is always 0 on UP kernels */ 343 boot_cpu_count++; 344 #endif 345 } 346 347 /* Not the boot CPU */ 348 if (found < 0) 349 return 0; 350 351 DBG("boot cpu: logical %d physical %d\n", found, 352 be32_to_cpu(intserv[found_thread])); 353 boot_cpuid = found; 354 355 /* 356 * PAPR defines "logical" PVR values for cpus that 357 * meet various levels of the architecture: 358 * 0x0f000001 Architecture version 2.04 359 * 0x0f000002 Architecture version 2.05 360 * If the cpu-version property in the cpu node contains 361 * such a value, we call identify_cpu again with the 362 * logical PVR value in order to use the cpu feature 363 * bits appropriate for the architecture level. 364 * 365 * A POWER6 partition in "POWER6 architected" mode 366 * uses the 0x0f000002 PVR value; in POWER5+ mode 367 * it uses 0x0f000001. 368 * 369 * If we're using device tree CPU feature discovery then we don't 370 * support the cpu-version property, and it's the responsibility of the 371 * firmware/hypervisor to provide the correct feature set for the 372 * architecture level via the ibm,powerpc-cpu-features binding. 373 */ 374 if (!dt_cpu_ftrs_in_use()) { 375 prop = of_get_flat_dt_prop(node, "cpu-version", NULL); 376 if (prop && (be32_to_cpup(prop) & 0xff000000) == 0x0f000000) 377 identify_cpu(0, be32_to_cpup(prop)); 378 379 check_cpu_feature_properties(node); 380 check_cpu_pa_features(node); 381 } 382 383 mmu_cpu_feature_fixup(); 384 identical_pvr_fixup(node); 385 init_mmu_slb_size(node); 386 387 /* Initialize segment sizes */ 388 if (!early_radix_enabled()) > 389 hash__early_detect_seg_size(); 390 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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