[linux-rt-devel:linux-5.4.y-rt 246/325] drivers/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock'

[linux-rt-devel:linux-5.4.y-rt 246/325] drivers/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock'

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2007 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.4.y-rt
head:   5fbf1e70f11dba64cc05c9d85120a3aa7c67a4a2
commit: 78412101a22410944389c3bbc954ba97a0f47e0f [246/325] connector/cn_proc: Protect send_msg() with a local lock on RT
config: x86_64-randconfig-r014-20201008 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 8da0df3d6dcc0dd42740be60b0da4ec201190904)
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/rt/linux-rt-devel.git/commit/?id=78412101a22410944389c3bbc954ba97a0f47e0f
        git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
        git fetch --no-tags linux-rt-devel linux-5.4.y-rt
        git checkout 78412101a22410944389c3bbc954ba97a0f47e0f
        # 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 warnings (new ones prefixed by >>):

>> drivers/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock' [-Wunused-const-variable]
   static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
                                ^
   1 warning generated.

vim +/send_msg_lock +44 drivers/connector/cn_proc.c

    41	
    42	/* proc_event_counts is used as the sequence number of the netlink message */
    43	static DEFINE_PER_CPU(__u32, proc_event_counts) = { 0 };
  > 44	static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
    45	

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 28973 bytes --]