Re: [PATCH v5] perf: arm_dsu: Support DSU ACPI devices

[kernel test robot <lkp@intel.com>]

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Hi Tuan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.9-rc4 next-20200910]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Tuan-Phan/perf-arm_dsu-Support-DSU-ACPI-devices/20200910-105630
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ab29a807a7ddaa7c84d2f4cb8d29e74e33759072
config: arm64-randconfig-r012-20200909 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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/perf/arm_dsu_pmu.c:799:36: warning: unused variable 'dsu_pmu_acpi_match' [-Wunused-const-variable]
   static const struct acpi_device_id dsu_pmu_acpi_match[] = {
                                      ^
   1 warning generated.

# https://github.com/0day-ci/linux/commit/40c3a0c70d4472e2fe1f5364d50939b863874fa1
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Tuan-Phan/perf-arm_dsu-Support-DSU-ACPI-devices/20200910-105630
git checkout 40c3a0c70d4472e2fe1f5364d50939b863874fa1
vim +/dsu_pmu_acpi_match +799 drivers/perf/arm_dsu_pmu.c

   798	
 > 799	static const struct acpi_device_id dsu_pmu_acpi_match[] = {
   800		{ "ARMHD500", 0},
   801		{},
   802	};
   803	MODULE_DEVICE_TABLE(acpi, dsu_pmu_acpi_match);
   804	

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

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