[rmk-arm:for-next 5/7] arch/arm/mm/init.c:219: undefined reference to `phys_initrd_start'

[kernel test robot]

tree:   git://git.armlinux.org.uk/~rmk/linux-arm for-next
head:   a72b4b3ba681398a3ac1c1384efb949bef3ac846
commit: b35b2736b43d7124e7da6a8050b8fd9e02f9f734 [5/7] ARM: 9230/1: Support initrd with address in boot alias region
config: arm-lubbock_defconfig (https://download.01.org/0day-ci/archive/20220831/202208310435.G07HW3ZF-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-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
        git remote add rmk-arm git://git.armlinux.org.uk/~rmk/linux-arm
        git fetch --no-tags rmk-arm for-next
        git checkout b35b2736b43d7124e7da6a8050b8fd9e02f9f734
        # 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=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: arch/arm/mm/init.o: in function `arm_memblock_init':
>> arch/arm/mm/init.c:219: undefined reference to `phys_initrd_start'


vim +219 arch/arm/mm/init.c

b35b2736b43d71 Matija Glavinic Pecotic 2022-08-19  197  
3928624812dcfa Russell King            2017-01-16  198  void __init arm_memblock_init(const struct machine_desc *mdesc)
3928624812dcfa Russell King            2017-01-16  199  {
3928624812dcfa Russell King            2017-01-16  200  	/* Register the kernel text, kernel data and initrd with memblock. */
3928624812dcfa Russell King            2017-01-16  201  	memblock_reserve(__pa(KERNEL_START), KERNEL_END - KERNEL_START);
3928624812dcfa Russell King            2017-01-16  202  
b35b2736b43d71 Matija Glavinic Pecotic 2022-08-19  203  	sanitize_initrd_address();
e46e45f00d9ea5 Wang Kefeng             2021-12-22  204  	reserve_initrd_mem();
2778f62056ada4 Russell King            2010-07-09  205  
2778f62056ada4 Russell King            2010-07-09  206  	arm_mm_memblock_reserve();
2778f62056ada4 Russell King            2010-07-09  207  
8d717a52d1b095 Russell King            2010-05-22  208  	/* reserve any platform specific memblock areas */
8d717a52d1b095 Russell King            2010-05-22  209  	if (mdesc->reserve)
8d717a52d1b095 Russell King            2010-05-22  210  		mdesc->reserve();
8d717a52d1b095 Russell King            2010-05-22  211  
bcedb5f9bd7466 Marek Szyprowski        2014-02-28  212  	early_init_fdt_scan_reserved_mem();
bcedb5f9bd7466 Marek Szyprowski        2014-02-28  213  
99a468d779f685 George G. Davis         2015-01-16  214  	/* reserve memory for DMA contiguous allocations */
95b0e655f91488 Marek Szyprowski        2014-10-09  215  	dma_contiguous_reserve(arm_dma_limit);
c79095092834a1 Marek Szyprowski        2011-12-29  216  
716a3dc20084da Russell King            2012-01-13  217  	arm_memblock_steal_permitted = false;
2778f62056ada4 Russell King            2010-07-09  218  	memblock_dump_all();
2778f62056ada4 Russell King            2010-07-09 @219  }
2778f62056ada4 Russell King            2010-07-09  220  

:::::: The code at line 219 was first introduced by commit
:::::: 2778f62056ada442414392d7ccd41188bb631619 ARM: initial LMB trial

:::::: TO: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
:::::: CC: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>

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