Hi "Eric, Thank you for the patch! Yet something to improve: [auto build test ERROR on deller-parisc/for-next] [also build test ERROR on linus/master v5.18-rc5] [cannot apply to tip/x86/core next-20220506] [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/intel-lab-lkp/linux/commits/Eric-W-Biederman/kthread-Don-t-allocate-kthread_struct-for-init-and-umh/20220506-221832 base: https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next config: h8300-randconfig-r025-20220506 (https://download.01.org/0day-ci/archive/20220507/202205070451.wstjDYm7-lkp@xxxxxxxxx/config) compiler: h8300-linux-gcc (GCC) 11.3.0 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/intel-lab-lkp/linux/commit/22689080e2beece6919f918620e4c780cf7320eb git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Eric-W-Biederman/kthread-Don-t-allocate-kthread_struct-for-init-and-umh/20220506-221832 git checkout 22689080e2beece6919f918620e4c780cf7320eb # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=h8300 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/h8300/kernel/process.c:58:6: warning: no previous prototype for 'arch_cpu_idle' [-Wmissing-prototypes] 58 | void arch_cpu_idle(void) | ^~~~~~~~~~~~~ >> arch/h8300/kernel/process.c:108:46: error: unknown type name 'kernel_cloen_args' 108 | int copy_thread(struct task_struct *p, const kernel_cloen_args *args) | ^~~~~~~~~~~~~~~~~ >> arch/h8300/kernel/process.c:108:5: error: conflicting types for 'copy_thread'; have 'int(struct task_struct *, const int *)' 108 | int copy_thread(struct task_struct *p, const kernel_cloen_args *args) | ^~~~~~~~~~~ In file included from arch/h8300/kernel/process.c:30: include/linux/sched/task.h:71:12: note: previous declaration of 'copy_thread' with type 'int(struct task_struct *, const struct kernel_clone_args *)' 71 | extern int copy_thread(struct task_struct *, const struct kernel_clone_args *); | ^~~~~~~~~~~ arch/h8300/kernel/process.c: In function 'copy_thread': >> arch/h8300/kernel/process.c:110:33: error: request for member 'stack' in something not a structure or union 110 | unsigned long usp = args->stack; | ^~ arch/h8300/kernel/process.c:111:36: error: request for member 'stack_size' in something not a structure or union 111 | unsigned long topstk = args->stack_size; | ^~ arch/h8300/kernel/process.c: At top level: arch/h8300/kernel/process.c:153:16: warning: no previous prototype for 'sys_clone' [-Wmissing-prototypes] 153 | asmlinkage int sys_clone(unsigned long __user *args) | ^~~~~~~~~ vim +/kernel_cloen_args +108 arch/h8300/kernel/process.c 107 > 108 int copy_thread(struct task_struct *p, const kernel_cloen_args *args) 109 { > 110 unsigned long usp = args->stack; 111 unsigned long topstk = args->stack_size; 112 struct pt_regs *childregs; 113 114 childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1; 115 116 if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) { 117 memset(childregs, 0, sizeof(struct pt_regs)); 118 childregs->retpc = (unsigned long) ret_from_kernel_thread; 119 childregs->er4 = topstk; /* arg */ 120 childregs->er5 = usp; /* fn */ 121 } else { 122 *childregs = *current_pt_regs(); 123 childregs->er0 = 0; 124 childregs->retpc = (unsigned long) ret_from_fork; 125 p->thread.usp = usp ?: rdusp(); 126 } 127 p->thread.ksp = (unsigned long)childregs; 128 129 return 0; 130 } 131 -- 0-DAY CI Kernel Test Service https://01.org/lkp
