Re: [RFC v3] cpuidle : Add support for pseudo-cpuidle driver

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

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Hi Abhishek,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on pm/linux-next]
[also build test WARNING on linus/master linux/master v5.10-rc3 next-20201109]
[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/Abhishek-Goel/cpuidle-Add-support-for-pseudo-cpuidle-driver/20201109-142255
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
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/0day-ci/linux/commit/1fb96577b34f9a7a8ca40bd5f7a8ca712fd2d363
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Abhishek-Goel/cpuidle-Add-support-for-pseudo-cpuidle-driver/20201109-142255
        git checkout 1fb96577b34f9a7a8ca40bd5f7a8ca712fd2d363
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 

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/cpuidle/cpuidle-test.c: In function 'add_cpuidle_states':
>> drivers/cpuidle/cpuidle-test.c:190:6: warning: variable 'rc' set but not used [-Wunused-but-set-variable]
     190 |  int rc;
         |      ^~

vim +/rc +190 drivers/cpuidle/cpuidle-test.c

   178	
   179	static int add_cpuidle_states(void)
   180	{
   181		/* Parse the module param and initialize the idle states here
   182		 * in cpuidle_state_table.
   183		 */
   184		char *this_param;
   185		char *input_name = name;
   186		char *input_res = residency_us;
   187		char *input_lat = latency_us;
   188		int index = 1;
   189		long temp;
 > 190		int rc;
   191	
   192		switch (sim_type) {
   193		case 1:
   194			cpuidle_state_table = cpuidle_states_ppc;
   195			return 0;
   196		case 2:
   197			cpuidle_state_table = cpuidle_states_intel;
   198			return 0;
   199		case 3:
   200			break;
   201		default:
   202			pr_warn("Sim value out of bound\n");
   203			break;
   204		}
   205	
   206		if (strnlen(input_name, MAX_PARAM_LENGTH)) {
   207			while ((this_param = strsep(&input_name, ",")) && index <= nr_states) {
   208				strcpy(cpuidle_states[index].name, this_param);
   209				cpuidle_states[index].enter = idle_loop;
   210				index++;
   211			}
   212		}
   213	
   214		if (strnlen(input_res, MAX_PARAM_LENGTH)) {
   215			index = 1;
   216			while ((this_param = strsep(&input_res, ",")) && index <= nr_states) {
   217				rc = kstrtol(this_param, 10, &temp);
   218				cpuidle_states[index].target_residency = temp;
   219				index++;
   220			}
   221		}
   222	
   223		if (strnlen(input_lat, MAX_PARAM_LENGTH)) {
   224			index = 1;
   225			while ((this_param = strsep(&input_lat, ",")) && index <= nr_states) {
   226				rc = kstrtol(this_param, 10, &temp);
   227				cpuidle_states[index].exit_latency = temp;
   228				index++;
   229			}
   230		}
   231	
   232		cpuidle_state_table = cpuidle_states;
   233		return nr_states;
   234	}
   235	

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

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