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SubjectRe: [PATCH v2 1/4] perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver
Hi Jiucheng,

I love your patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on arm64/for-next/core clk/clk-next soc/for-next linus/master v5.19-rc8 next-20220726]
[cannot apply to xilinx-xlnx/master]
[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#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Jiucheng-Xu/perf-amlogic-Add-support-for-Amlogic-meson-G12-SoC-DDR-PMU-driver/20220727-070511
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220727/202207272141.rn8Zx4Az-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 12.1.0
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
# https://github.com/intel-lab-lkp/linux/commit/be1236818a5d0ad61b0f9ecbe5f03b9e63f99365
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Jiucheng-Xu/perf-amlogic-Add-support-for-Amlogic-meson-G12-SoC-DDR-PMU-driver/20220727-070511
git checkout be1236818a5d0ad61b0f9ecbe5f03b9e63f99365
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash drivers/perf/amlogic/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

drivers/perf/amlogic/aml_ddr_pmu_core.c: In function 'event_show_unit':
>> drivers/perf/amlogic/aml_ddr_pmu_core.c:208:38: warning: variable 'pmu_attr' set but not used [-Wunused-but-set-variable]
208 | struct perf_pmu_events_attr *pmu_attr;
| ^~~~~~~~
drivers/perf/amlogic/aml_ddr_pmu_core.c: In function 'event_show_scale':
drivers/perf/amlogic/aml_ddr_pmu_core.c:218:38: warning: variable 'pmu_attr' set but not used [-Wunused-but-set-variable]
218 | struct perf_pmu_events_attr *pmu_attr;
| ^~~~~~~~


vim +/pmu_attr +208 drivers/perf/amlogic/aml_ddr_pmu_core.c

203
204 static ssize_t
205 event_show_unit(struct device *dev, struct device_attribute *attr,
206 char *page)
207 {
> 208 struct perf_pmu_events_attr *pmu_attr;
209
210 pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
211 return sysfs_emit(page, "MB\n");
212 }
213

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

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