tree: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git mpam/cache-id head: 4dec66d0c19165b654cca2ce8810615f61709693 commit: 0675c9648ac70490841259b1e449c293d27fd6ce [5/12] ARM: broadcom: Use of_get_cpu_hwid() config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/commit/?id... git remote add robh https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git git fetch --no-tags robh mpam/cache-id git checkout 0675c9648ac70490841259b1e449c293d27fd6ce # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross 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(a)intel.com&gt; All errors (new ones prefixed by >>): arch/arm/mach-bcm/bcm63xx_pmb.c: In function 'bcm63xx_pmb_get_resources': 94 | *cpu = of_get_cpu_hwid(dn); | ^~~~~~~~~~~~~~~ In file included from arch/arm/mach-bcm/bcm63xx_pmb.c:12: include/linux/of.h:356:12: note: declared here 356 | extern u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread); | ^~~~~~~~~~~~~~~ vim +/of_get_cpu_hwid +94 arch/arm/mach-bcm/bcm63xx_pmb.c 85 86 static int bcm63xx_pmb_get_resources(struct device_node *dn, 87 void __iomem **base, 88 unsigned int *cpu, 89 unsigned int *addr) 90 { 91 struct of_phandle_args args; 92 int ret; 93 95 if (*cpu == ~0U) { 96 pr_err("CPU is missing a reg node\n"); 97 return -ENODEV; 98 } 99 100 ret = of_parse_phandle_with_args(dn, "resets", "#reset-cells", 101 0, &args); 102 if (ret) { 103 pr_err("CPU is missing a resets phandle\n"); 104 return ret; 105 } 106 107 if (args.args_count != 2) { 108 pr_err("reset-controller does not conform to reset-cells\n"); 109 return -EINVAL; 110 } 111 112 *base = of_iomap(args.np, 0); 113 if (!*base) { 114 pr_err("failed remapping PMB register\n"); 115 return -ENOMEM; 116 } 117 118 /* We do not need the number of zones */ 119 *addr = args.args[0]; 120 121 return 0; 122 } 123 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org