[kbuild-all] Re: [PATCH 1/1] arm64: print alloc free paths for address in registers

Hi Maninder, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on v5.12-rc3 next-20210319] [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/Maninder-Singh/arm64-print-alloc... base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-r013-20210318 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/80431a06fb1d63d8cca96411426b612ce... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Maninder-Singh/arm64-print-alloc-free-paths-for-address-in-registers/20210319-192241 git checkout 80431a06fb1d63d8cca96411426b612ce049f545 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): arch/arm64/kernel/process.c:261:6: warning: no previous prototype for '__show_regs' [-Wmissing-prototypes] 261 | void __show_regs(struct pt_regs *regs) | ^~~~~~~~~~~ 307 | void __show_regs_alloc_free(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/process.c:365:5: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes] 365 | int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) | ^~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/process.c:546:41: warning: no previous prototype for '__switch_to' [-Wmissing-prototypes] 546 | __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev, | ^~~~~~~~~~~ arch/arm64/kernel/process.c:710:25: warning: no previous prototype for 'arm64_preempt_schedule_irq' [-Wmissing-prototypes] 710 | asmlinkage void __sched arm64_preempt_schedule_irq(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/__show_regs_alloc_free +307 arch/arm64/kernel/process.c 260 262 { 263 int i, top_reg; 264 u64 lr, sp; 265 266 if (compat_user_mode(regs)) { 267 lr = regs->compat_lr; 268 sp = regs->compat_sp; 269 top_reg = 12; 270 } else { 271 lr = regs->regs[30]; 272 sp = regs->sp; 273 top_reg = 29; 274 } 275 276 show_regs_print_info(KERN_DEFAULT); 277 print_pstate(regs); 278 279 if (!user_mode(regs)) { 280 printk("pc : %pS\n", (void *)regs->pc); 281 printk("lr : %pS\n", (void *)ptrauth_strip_insn_pac(lr)); 282 } else { 283 printk("pc : %016llx\n", regs->pc); 284 printk("lr : %016llx\n", lr); 285 } 286 287 printk("sp : %016llx\n", sp); 288 289 if (system_uses_irq_prio_masking()) 290 printk("pmr_save: %08llx\n", regs->pmr_save); 291 292 i = top_reg; 293 294 while (i >= 0) { 295 printk("x%-2d: %016llx ", i, regs->regs[i]); 296 i--; 297 298 if (i % 2 == 0) { 299 pr_cont("x%-2d: %016llx ", i, regs->regs[i]); 300 i--; 301 } 302 303 pr_cont("\n"); 304 } 305 } 306 308 { 309 int i; 310 311 /* check for x0 - x29 only */ 312 for (i = 0; i <= 29; i++) { 313 pr_alert("Register x%d information:", i); 314 mem_dump_obj((void *)regs->regs[i]); 315 } 316 } 317 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org