linux-kernel - [ammarfaizi2-block:palmer/linux/riscv-d1-merge 19/20] arch/riscv/errata/thead/errata.c:61:6: warning: variable 'cpu_apply

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Date:   Mon, 21 Mar 2022 17:39:47 +0800
From:   kernel test robot <lkp@...el.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org, Palmer Dabbelt <palmer@...osinc.com>
Subject: [ammarfaizi2-block:palmer/linux/riscv-d1-merge 19/20]
 arch/riscv/errata/thead/errata.c:61:6: warning: variable 'cpu_apply_errata'
 set but not used

tree:   https://github.com/ammarfaizi2/linux-block palmer/linux/riscv-d1-merge
head:   93a6d3583d613a2ff1c6d28060c78af8631e0d21
commit: 5acf4c1828afd2b357b001c796fbbbaad5461ba4 [19/20] riscv: add memory-type errata for T-Head
config: riscv-randconfig-c006-20220321 (https://download.01.org/0day-ci/archive/20220321/202203211709.nW1Uc4Zs-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 85e9b2687a13d1908aa86d1b89c5ce398a06cd39)
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 riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/5acf4c1828afd2b357b001c796fbbbaad5461ba4
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block palmer/linux/riscv-d1-merge
        git checkout 5acf4c1828afd2b357b001c796fbbbaad5461ba4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> arch/riscv/errata/thead/errata.c:61:6: warning: variable 'cpu_apply_errata' set but not used [-Wunused-but-set-variable]
           u32 cpu_apply_errata = 0;
               ^
   1 warning generated.


vim +/cpu_apply_errata +61 arch/riscv/errata/thead/errata.c

    54	
    55	void __init_or_module thead_errata_patch_func(struct alt_entry *begin, struct alt_entry *end,
    56						      unsigned long archid, unsigned long impid,
    57						      unsigned int stage)
    58	{
    59		struct alt_entry *alt;
    60		u32 cpu_req_errata = thead_errata_probe(stage, archid, impid);
  > 61		u32 cpu_apply_errata = 0;

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp