[jarkko-tpmdd:kprobes 3/3] arch/powerpc/kernel/module_alloc.c:31:39: error: use of undeclared identifier '_etext'

[kernel test robot]

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git kprobes
head:   8a45ec8f64f51131c2e98dcb9ee56edf0ca0a0b3
commit: 8a45ec8f64f51131c2e98dcb9ee56edf0ca0a0b3 [3/3] kprobes: Enable tracing for mololithic kernel images
config: powerpc-mpc8313_rdb_defconfig (https://download.01.org/0day-ci/archive/20220622/202206221119.cyyF058c-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project af6d2a0b6825e71965f3e2701a63c239fa0ad70f)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git/commit/?id=8a45ec8f64f51131c2e98dcb9ee56edf0ca0a0b3
        git remote add jarkko-tpmdd git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
        git fetch --no-tags jarkko-tpmdd kprobes
        git checkout 8a45ec8f64f51131c2e98dcb9ee56edf0ca0a0b3
        # 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=powerpc 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 >>):

>> arch/powerpc/kernel/module_alloc.c:31:39: error: use of undeclared identifier '_etext'
           unsigned long limit = (unsigned long)_etext - SZ_32M;
                                                ^
   1 error generated.


vim +/_etext +31 arch/powerpc/kernel/module_alloc.c

    27	
    28	void *module_alloc(unsigned long size)
    29	{
    30	#ifdef MODULES_VADDR
  > 31		unsigned long limit = (unsigned long)_etext - SZ_32M;

-- 
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https://01.org/lkp