tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b605fdc54c2b28c30ef06d9db99282d8a32ae4be commit: 35f56ebeffca44e35eda0a5c6a6ce2cf632b03f9 [2464/2855] arm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef config: arm-randconfig-r011-20220127 (https://download.01.org/0day-ci/archive/20220129/202201290101.JjTXjbCK-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4) 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/next/linux-next.git/commit/?id=35f56ebeffca44e35eda0a5c6a6ce2cf632b03f9 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 35f56ebeffca44e35eda0a5c6a6ce2cf632b03f9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash 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/arm/kernel/setup.c:1028:49: error: use of undeclared identifier 'SECTION_SIZE' start = memblock_phys_alloc_range(crash_size, SECTION_SIZE, ^ 1 error generated. vim +/SECTION_SIZE +1028 arch/arm/kernel/setup.c 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 989 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 990 /** 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 991 * reserve_crashkernel() - reserves memory are for crash kernel 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 992 * 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 993 * This function reserves memory area given in "crashkernel=" kernel command 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 994 * line parameter. The memory reserved is used by a dump capture kernel when 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 995 * primary kernel is crashing. 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 996 */ 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 997 static void __init reserve_crashkernel(void) 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 998 { 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 999 unsigned long long crash_size, crash_base; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1000 unsigned long long total_mem; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1001 int ret; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1002 35f56ebeffca44e Jisheng Zhang 2022-01-27 1003 if (!IS_ENABLED(CONFIG_KEXEC_CORE)) 35f56ebeffca44e Jisheng Zhang 2022-01-27 1004 return; 35f56ebeffca44e Jisheng Zhang 2022-01-27 1005 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1006 total_mem = get_total_mem(); 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1007 ret = parse_crashkernel(boot_command_line, total_mem, 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1008 &crash_size, &crash_base); 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1009 if (ret) 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1010 return; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1011 61603016e2122bf Russell King 2016-03-14 1012 if (crash_base <= 0) { d0506a2395eb07b Russell King 2016-04-01 1013 unsigned long long crash_max = idmap_to_phys((u32)~0); 67556d7a851c201 Russell King 2017-07-19 1014 unsigned long long lowmem_max = __pa(high_memory - 1) + 1; 67556d7a851c201 Russell King 2017-07-19 1015 if (crash_max > lowmem_max) 67556d7a851c201 Russell King 2017-07-19 1016 crash_max = lowmem_max; a7259df7670240e Mike Rapoport 2021-09-02 1017 a7259df7670240e Mike Rapoport 2021-09-02 1018 crash_base = memblock_phys_alloc_range(crash_size, CRASH_ALIGN, a7259df7670240e Mike Rapoport 2021-09-02 1019 CRASH_ALIGN, crash_max); 61603016e2122bf Russell King 2016-03-14 1020 if (!crash_base) { 61603016e2122bf Russell King 2016-03-14 1021 pr_err("crashkernel reservation failed - No suitable area found.\n"); 61603016e2122bf Russell King 2016-03-14 1022 return; 61603016e2122bf Russell King 2016-03-14 1023 } 61603016e2122bf Russell King 2016-03-14 1024 } else { a7259df7670240e Mike Rapoport 2021-09-02 1025 unsigned long long crash_max = crash_base + crash_size; 61603016e2122bf Russell King 2016-03-14 1026 unsigned long long start; 61603016e2122bf Russell King 2016-03-14 1027 a7259df7670240e Mike Rapoport 2021-09-02 @1028 start = memblock_phys_alloc_range(crash_size, SECTION_SIZE, a7259df7670240e Mike Rapoport 2021-09-02 1029 crash_base, crash_max); a7259df7670240e Mike Rapoport 2021-09-02 1030 if (!start) { 61603016e2122bf Russell King 2016-03-14 1031 pr_err("crashkernel reservation failed - memory is in use.\n"); 61603016e2122bf Russell King 2016-03-14 1032 return; 61603016e2122bf Russell King 2016-03-14 1033 } 61603016e2122bf Russell King 2016-03-14 1034 } 61603016e2122bf Russell King 2016-03-14 1035 1b0f6681fcbc0e6 Olof Johansson 2013-12-05 1036 pr_info("Reserving %ldMB of memory at %ldMB for crashkernel (System RAM: %ldMB)\n", 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1037 (unsigned long)(crash_size >> 20), 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1038 (unsigned long)(crash_base >> 20), 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1039 (unsigned long)(total_mem >> 20)); 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1040 f7f0b7dc720f81b Russell King 2016-08-02 1041 /* The crashk resource must always be located in normal mem */ 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1042 crashk_res.start = crash_base; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1043 crashk_res.end = crash_base + crash_size - 1; 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1044 insert_resource(&iomem_resource, &crashk_res); f7f0b7dc720f81b Russell King 2016-08-02 1045 f7f0b7dc720f81b Russell King 2016-08-02 1046 if (arm_has_idmap_alias()) { f7f0b7dc720f81b Russell King 2016-08-02 1047 /* f7f0b7dc720f81b Russell King 2016-08-02 1048 * If we have a special RAM alias for use at boot, we f7f0b7dc720f81b Russell King 2016-08-02 1049 * need to advertise to kexec tools where the alias is. f7f0b7dc720f81b Russell King 2016-08-02 1050 */ f7f0b7dc720f81b Russell King 2016-08-02 1051 static struct resource crashk_boot_res = { f7f0b7dc720f81b Russell King 2016-08-02 1052 .name = "Crash kernel (boot alias)", f7f0b7dc720f81b Russell King 2016-08-02 1053 .flags = IORESOURCE_BUSY | IORESOURCE_MEM, f7f0b7dc720f81b Russell King 2016-08-02 1054 }; f7f0b7dc720f81b Russell King 2016-08-02 1055 f7f0b7dc720f81b Russell King 2016-08-02 1056 crashk_boot_res.start = phys_to_idmap(crash_base); f7f0b7dc720f81b Russell King 2016-08-02 1057 crashk_boot_res.end = crashk_boot_res.start + crash_size - 1; f7f0b7dc720f81b Russell King 2016-08-02 1058 insert_resource(&iomem_resource, &crashk_boot_res); f7f0b7dc720f81b Russell King 2016-08-02 1059 } 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1060 } 3c57fb43c8fcbe4 Mika Westerberg 2010-05-10 1061 :::::: The code at line 1028 was first introduced by commit :::::: a7259df7670240ee03b0cfce8a3e5d3773911e24 memblock: make memblock_find_in_range method private :::::: TO: Mike Rapoport <rppt@xxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
