tree: https://android.googlesource.com/kernel/common android-4.19 head: 723feab600f71b3104a10de5b372bd1d9adf5943 commit: 723feab600f71b3104a10de5b372bd1d9adf5943 [1/1] ANDROID: GKI: QoS: Enhance framework to support cpu/irq specific QoS requests config: x86_64-randconfig-r024-20200607 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project e429cffd4f228f70c1d9df0e5d77c08590dd9766) 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 git checkout 723feab600f71b3104a10de5b372bd1d9adf5943 # 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(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node, ^ 1 warning generated. kernel/power/qos.c:630: warning: Function parameter or member 'new_value' not described in 'pm_qos_update_request' kernel/power/qos.c:630: warning: Excess function parameter 'value' description in 'pm_qos_update_request' vim +/pm_qos_update_target +306 kernel/power/qos.c 723feab600f71b kernel/power/qos.c Lina Iyer 2014-05-21 294 abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 295 /** abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 296 * pm_qos_update_target - manages the constraints list and calls the notifiers abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 297 * if needed abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 298 * @c: constraints data struct abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 299 * @node: request to add to the list, to update or to remove abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 300 * @action: action to take on the constraints list abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 301 * @value: value of the request to add or update abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 302 * abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 303 * This function returns 1 if the aggregated constraint value has changed, 0 abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 304 * otherwise. abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 305 */ abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 @306 int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node, abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 307 enum pm_qos_req_action action, int value) d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 308 { d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 309 unsigned long flags; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 310 int prev_value, curr_value, new_value; 2d984ad132a87c kernel/power/qos.c Rafael J. Wysocki 2014-02-11 311 int ret; d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 312 d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 313 spin_lock_irqsave(&pm_qos_lock, flags); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 314 prev_value = pm_qos_get_value(c); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 315 if (value == PM_QOS_DEFAULT_VALUE) abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 316 new_value = c->default_value; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 317 else abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 318 new_value = value; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 319 abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 320 switch (action) { abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 321 case PM_QOS_REMOVE_REQ: abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 322 plist_del(node, &c->list); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 323 break; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 324 case PM_QOS_UPDATE_REQ: 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 325 /* 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 326 * to change the list, we atomically remove, reinit 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 327 * with new value and add, then see if the extremal 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 328 * changed 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 329 */ abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 330 plist_del(node, &c->list); fe43e2ce526979 kernel/power/qos.c Gustavo A. R. Silva 2018-03-30 331 /* fall through */ abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 332 case PM_QOS_ADD_REQ: abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 333 plist_node_init(node, new_value); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 334 plist_add(node, &c->list); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 335 break; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 336 default: abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 337 /* no action */ abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 338 ; d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 339 } abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 340 abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 341 curr_value = pm_qos_get_value(c); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 342 pm_qos_set_value(c, curr_value); 723feab600f71b kernel/power/qos.c Lina Iyer 2014-05-21 343 pm_qos_set_value_for_cpus(c); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 344 d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 345 spin_unlock_irqrestore(&pm_qos_lock, flags); d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 346 247e9ee034b044 kernel/power/qos.c Sahara 2013-06-21 347 trace_pm_qos_update_target(action, prev_value, curr_value); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 348 if (prev_value != curr_value) { 2d984ad132a87c kernel/power/qos.c Rafael J. Wysocki 2014-02-11 349 ret = 1; 2d984ad132a87c kernel/power/qos.c Rafael J. Wysocki 2014-02-11 350 if (c->notifiers) abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 351 blocking_notifier_call_chain(c->notifiers, 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 352 (unsigned long)curr_value, 5f279845f9d684 kernel/pm_qos_params.c James Bottomley 2010-07-19 353 NULL); abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 354 } else { 2d984ad132a87c kernel/power/qos.c Rafael J. Wysocki 2014-02-11 355 ret = 0; abe98ec2d86279 kernel/power/qos.c Jean Pihet 2011-08-25 356 } 2d984ad132a87c kernel/power/qos.c Rafael J. Wysocki 2014-02-11 357 return ret; d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 358 } d82b35186eaa81 kernel/pm_qos_params.c Mark Gross 2008-02-04 359 :::::: The code at line 306 was first introduced by commit :::::: abe98ec2d86279fe821c9051003a0abc43444f15 PM QoS: Generalize and export constraints management code :::::: TO: Jean Pihet <j-pihet(a)ti.com&gt; :::::: CC: Rafael J. Wysocki <rjw(a)sisk.pl&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org