[zohar-integrity:next-integrity-testing 4/6] security/integrity/ima/ima_efi.c:72:4: error: call to undeclared function 'set_kexec_sig_enforced'; ISO C99 and later do not support implicit function declarations

[kernel test robot <lkp@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git next-integrity-testing
head:   e56ed3d80c69511a4af9db0b76e54e6763a63ef1
commit: 7be7b6c5b42fe7661a3abfaecf0910255781771f [4/6] ima: force signature verification when CONFIG_KEXEC_SIG is configured
config: arm64-randconfig-r032-20220712 (https://download.01.org/0day-ci/archive/20220712/202207122330.FCO2VFHx-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project badda4ac3c489a8c8cccdad1f74b9308c350a9e0)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git/commit/?id=7be7b6c5b42fe7661a3abfaecf0910255781771f
        git remote add zohar-integrity https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
        git fetch --no-tags zohar-integrity next-integrity-testing
        git checkout 7be7b6c5b42fe7661a3abfaecf0910255781771f
        # 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=arm64 SHELL=/bin/bash security/integrity/ima/

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

All errors (new ones prefixed by >>):

>> security/integrity/ima/ima_efi.c:72:4: error: call to undeclared function 'set_kexec_sig_enforced'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
                           set_kexec_sig_enforced();
                           ^
   security/integrity/ima/ima_efi.c:72:4: note: did you mean 'set_module_sig_enforced'?
   include/linux/module.h:809:20: note: 'set_module_sig_enforced' declared here
   static inline void set_module_sig_enforced(void)
                      ^
   1 error generated.


vim +/set_kexec_sig_enforced +72 security/integrity/ima/ima_efi.c

    65	
    66	const char * const *arch_get_ima_policy(void)
    67	{
    68		if (IS_ENABLED(CONFIG_IMA_ARCH_POLICY) && arch_ima_get_secureboot()) {
    69			if (IS_ENABLED(CONFIG_MODULE_SIG))
    70				set_module_sig_enforced();
    71			if (IS_ENABLED(CONFIG_KEXEC_SIG))
  > 72				set_kexec_sig_enforced();

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