tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   07f7e57c63aaa2afb4ea31edef05e08699a63a00
commit: 30fdba3f40fd5fb8c050f996eb76e39a34e27a28 [7596/11103] certs: Add EFI_CERT_X509_GUID support for dbx entries
config: x86_64-randconfig-a016-20210214 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=30fdba3f40fd5fb8c050f996eb76e39a34e27a28
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 30fdba3f40fd5fb8c050f996eb76e39a34e27a28
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: pkcs7_validate_trust
   >>> referenced by blacklist.c:128 (certs/blacklist.c:128)
   >>>               blacklist.o:(is_key_on_revocation_list) in archive certs/built-in.a

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org