clang: warning: argument unused during compilation: '-mbranch-protection=none'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   037266a5f7239ead1530266f7d7af153d2a867fa
commit: 26e7aacb83dfd04330673c5c9ac336560da52bb3 riscv: Allow to downgrade paging mode from the command line
date:   7 months ago
config: riscv-allnoconfig (https://download.01.org/0day-ci/archive/20231119/202311191730.HjiepeUh-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231119/202311191730.HjiepeUh-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311191730.HjiepeUh-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> clang: warning: argument unused during compilation: '-mbranch-protection=none' [-Wunused-command-line-argument]

-- 
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https://github.com/intel/lkp-tests/wiki