Hi Justin,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   69119673bd50b176ded34032fadd41530fb5af21
commit: 6468fc18b00685c82408f40e9569c0d3527862b8 irqchip/irq-bcm7038-l1: Add PM support
date:   7 months ago
config: mips-randconfig-r002-20200617 (attached as .config)
compiler: mips-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
        git checkout 6468fc18b00685c82408f40e9569c0d3527862b8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

drivers/irqchip/irq-bcm7038-l1.c: In function 'bcm7038_l1_suspend':
>> drivers/irqchip/irq-bcm7038-l1.c:312:13: error: implicit declaration of function 'cpu_logical_map' [-Werror=implicit-function-declaration]
312 |  boot_cpu = cpu_logical_map(0);
|             ^~~~~~~~~~~~~~~
drivers/irqchip/irq-bcm7038-l1.c: At top level:
drivers/irqchip/irq-bcm7038-l1.c:393:12: warning: no previous prototype for 'bcm7038_l1_of_init' [-Wmissing-prototypes]
393 | int __init bcm7038_l1_of_init(struct device_node *dn,
|            ^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/cpu_logical_map +312 drivers/irqchip/irq-bcm7038-l1.c

   305	
   306	static int bcm7038_l1_suspend(void)
   307	{
   308		struct bcm7038_l1_chip *intc;
   309		int boot_cpu, word;
   310	
   311		/* Wakeup interrupt should only come from the boot cpu */
 > 312		boot_cpu = cpu_logical_map(0);
   313	
   314		list_for_each_entry(intc, &bcm7038_l1_intcs_list, list) {
   315			for (word = 0; word < intc->n_words; word++) {
   316				l1_writel(~intc->wake_mask[word],
   317					intc->cpus[boot_cpu]->map_base + reg_mask_set(intc, word));
   318				l1_writel(intc->wake_mask[word],
   319					intc->cpus[boot_cpu]->map_base + reg_mask_clr(intc, word));
   320			}
   321		}
   322	
   323		return 0;
   324	}
   325	

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org