tree:   https://github.com/ammarfaizi2/linux-block tglx/devel/printk
head:   f6339cd6dc7f812f822e86bd78d1edbf2bfc730b
commit: f6339cd6dc7f812f822e86bd78d1edbf2bfc730b [29/29] printk: Add atomic write enforcement to warn/panic...
config: s390-randconfig-r044-20220911
compiler: s390-linux-gcc (GCC) 12.1.0
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/ammarfaizi2/linux-block/commit/f6339cd6dc7f812f822e86bd78d1edbf2bfc730b
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block tglx/devel/printk
        git checkout f6339cd6dc7f812f822e86bd78d1edbf2bfc730b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   s390-linux-ld: kernel/panic.o: in function `__warn':
>> kernel/panic.c:613: undefined reference to `cons_atomic_enter'
>> s390-linux-ld: kernel/panic.c:647: undefined reference to `cons_atomic_exit'
   s390-linux-ld: kernel/panic.o: in function `panic':
   kernel/panic.c:263: undefined reference to `cons_atomic_enter'
   s390-linux-ld: drivers/dma/idma64.o: in function `idma64_platform_probe':
   drivers/dma/idma64.c:644: undefined reference to `devm_ioremap_resource'
   s390-linux-ld: drivers/dma/qcom/hidma.o: in function `hidma_probe':
   drivers/dma/qcom/hidma.c:770: undefined reference to `devm_ioremap_resource'
   s390-linux-ld: drivers/dma/qcom/hidma.c:777: undefined reference to `devm_ioremap_resource'


vim +613 kernel/panic.c

   607	
   608	void __warn(const char *file, int line, void *caller, unsigned taint,
   609		    struct pt_regs *regs, struct warn_args *args)
   610	{
   611		enum cons_prio prev_prio;
   612	
 > 613		prev_prio = cons_atomic_enter(CONS_PRIO_EMERGENCY);
   614	
   615		disable_trace_on_warning();
   616	
   617		if (file)
   618			pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS\n",
   619				raw_smp_processor_id(), current->pid, file, line,
   620				caller);
   621		else
   622			pr_warn("WARNING: CPU: %d PID: %d at %pS\n",
   623				raw_smp_processor_id(), current->pid, caller);
   624	
   625		if (args)
   626			vprintk(args->fmt, args->args);
   627	
   628		print_modules();
   629	
   630		if (regs)
   631			show_regs(regs);
   632	
   633		if (panic_on_warn)
   634			panic("panic_on_warn set ...\n");
   635	
   636		if (!regs)
   637			dump_stack();
   638	
   639		print_irqtrace_events(current);
   640	
   641		print_oops_end_marker();
   642		trace_error_report_end(ERROR_DETECTOR_WARN, (unsigned long)caller);
   643	
   644		/* Just a warning, don't kill lockdep. */
   645		add_taint(taint, LOCKDEP_STILL_OK);
   646	
 > 647		cons_atomic_exit(CONS_PRIO_EMERGENCY, prev_prio);
   648	}
   649	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp