Hi Sivaprakash,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v5.7-rc7 next-20200528]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Sivaprakash-Murugesan/Add-ipq6018-apcs-mailbox-driver/20200527-204025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: x86_64-randconfig-a004-20200528 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2d068e534f1671459e1b135852c1b3c10502e929)
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
        # 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 <<):

>> drivers/mailbox/qcom-apcs-ipc-mailbox.c:48:34: warning: unused variable 'apcs_clk_match_table' [-Wunused-const-variable]
static const struct of_device_id apcs_clk_match_table[] = {
^
1 warning generated.

vim +/apcs_clk_match_table +48 drivers/mailbox/qcom-apcs-ipc-mailbox.c

    47	
  > 48	static const struct of_device_id apcs_clk_match_table[] = {
    49		{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = "qcom,apss-ipq6018-clk", },
    50		{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = "qcom-apcs-msm8916-clk", },
    51		{ .compatible = "qcom,qcs404-apcs-apps-global",  .data = "qcom-apcs-msm8916-clk", },
    52		{}
    53	};
    54	

---
0-DAY CI Kernel Test Service, Intel Corporation
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