[rmk-arm:for-next 5/7] ld.lld: error: undefined symbol: phys_initrd_start

[kernel test robot <lkp@intel.com>]

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-pcm027_defconfig (https://download.01.org/0day-ci/archive/20220831/202208310617.FHNEaNba-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project c7df82e4693c19e3fd2e25c83eb04d9deb7b7b59)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        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=clang 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@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: phys_initrd_start
   >>> referenced by init.c
   >>>               mm/init.o:(arm_memblock_init) in archive arch/arm/built-in.a

-- 
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https://01.org/lkp