[palmer:riscv-kexec 5/6] arch/riscv/purgatory/entry.S:29: Error: unrecognized opcode `ld a2,riscv_kernel_entry'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git riscv-kexec
head:   daae2fd41212953aeccd56f0a84546394cd00dfb
commit: 781a15320381cb50ae9e85f66da123aa5b8c3d2f [5/6] RISC-V: Add purgatory
config: riscv-randconfig-c003-20220522 (https://download.01.org/0day-ci/archive/20220522/202205220336.fndQjLb9-lkp@xxxxxxxxx/config)
compiler: riscv32-linux-gcc (GCC) 11.3.0
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/palmer/linux.git/commit/?id=781a15320381cb50ae9e85f66da123aa5b8c3d2f
        git remote add palmer https://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git
        git fetch --no-tags palmer riscv-kexec
        git checkout 781a15320381cb50ae9e85f66da123aa5b8c3d2f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/ arch/riscv/purgatory/

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

All errors (new ones prefixed by >>):

   arch/riscv/purgatory/entry.S: Assembler messages:
>> arch/riscv/purgatory/entry.S:29: Error: unrecognized opcode `ld a2,riscv_kernel_entry'


vim +29 arch/riscv/purgatory/entry.S

    16	
    17	.globl purgatory_start
    18	purgatory_start:
    19	
    20		lla	sp, .Lstack
    21		mv	s0, a0	/* The hartid of the current hart */
    22		mv	s1, a1	/* Phys address of the FDT image */
    23	
    24		jal	purgatory
    25	
    26		/* Start new image. */
    27		mv	a0, s0
    28		mv	a1, s1
  > 29		ld	a2, riscv_kernel_entry
    30		jr	a2
    31	

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https://01.org/lkp