[linux-rt-devel:linux-5.6.y-rt 251/274] fs/squashfs/decompressor_multi_percpu.c:27:30: warning: unused variable 'stream_lock'

[linux-rt-devel:linux-5.6.y-rt 251/274] fs/squashfs/decompressor_multi_percpu.c:27:30: warning: unused variable 'stream_lock'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.6.y-rt
head:   c4a637d45e250c33f63c9397c17fc24fccfd902f
commit: b5d91a45bf852758d3df48f9c77130166f45d939 [251/274] squashfs: make use of local lock in multi_cpu decompressor
config: x86_64-randconfig-a001-20200602 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2388a096e7865c043e83ece4e26654bd3d1a20d5)
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
        git checkout b5d91a45bf852758d3df48f9c77130166f45d939
        # 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: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> fs/squashfs/decompressor_multi_percpu.c:27:30: warning: unused variable 'stream_lock' [-Wunused-const-variable]
static DEFINE_LOCAL_IRQ_LOCK(stream_lock);
^
1 warning generated.

vim +/stream_lock +27 fs/squashfs/decompressor_multi_percpu.c

    26	
  > 27	static DEFINE_LOCAL_IRQ_LOCK(stream_lock);
    28	

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

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