Hi Tony,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   89698becf06d341a700913c3d89ce2a914af69a2
commit: d86ad463d6706d35167418660ae3293207ee9d1c ARM: OMAP2+: Fix regression for using local timer on non-SMP SoCs
date:   11 months ago
config: arm-randconfig-c004-20210412 (attached as .config)
compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d86ad463d6706d35167418660ae3293207ee9d1c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout d86ad463d6706d35167418660ae3293207ee9d1c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

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

All warnings (new ones prefixed by >>):

   arch/arm/mach-omap2/board-generic.c:36:28: warning: no previous prototype for 'omap_init_time_of' [-Wmissing-prototypes]
      36 | void __init __maybe_unused omap_init_time_of(void)
         |                            ^~~~~~~~~~~~~~~~~
>> arch/arm/mach-omap2/board-generic.c:44:6: warning: no previous prototype for 'tick_broadcast' [-Wmissing-prototypes]
      44 | void tick_broadcast(const struct cpumask *mask)
         |      ^~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for TEGRA20_APB_DMA
   Depends on DMADEVICES && (ARCH_TEGRA || COMPILE_TEST
   Selected by
   - SOC_TEGRA_FUSE && ARCH_TEGRA && ARCH_TEGRA_2x_SOC


vim +/tick_broadcast +44 arch/arm/mach-omap2/board-generic.c

    41	
    42	/* Used by am437x for ARM timer in non-SMP configurations */
    43	#if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
  > 44	void tick_broadcast(const struct cpumask *mask)
    45	{
    46	}
    47	#endif
    48	

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