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Message-ID: <202312021710.3blFSIKX-lkp@intel.com> Date: Sun, 3 Dec 2023 14:07:08 +0800 From: kernel test robot <lkp@...el.com> To: Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com> Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net> Subject: drivers/cpufreq/powernv-cpufreq.c:469:25: sparse: sparse: restricted __be64 degrades to integer tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 815fb87b753055df2d9e50f6cd80eb10235fe3e9 commit: cb166fa937a2fbc14badcafca86202354c34a213 cpufreq: powernv: Register for OCC related opal_message notification date: 8 years ago config: powerpc64-randconfig-r113-20231107 (https://download.01.org/0day-ci/archive/20231202/202312021710.3blFSIKX-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231202/202312021710.3blFSIKX-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@...el.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202312021710.3blFSIKX-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/cpufreq/powernv-cpufreq.c:175:18: sparse: sparse: symbol 'cpufreq_freq_attr_cpuinfo_nominal_freq' was not declared. Should it be static? drivers/cpufreq/powernv-cpufreq.c:436:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] type @@ got unsigned long long @@ drivers/cpufreq/powernv-cpufreq.c:436:19: sparse: expected restricted __be64 [usertype] type drivers/cpufreq/powernv-cpufreq.c:436:19: sparse: got unsigned long long drivers/cpufreq/powernv-cpufreq.c:458:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] chip @@ got unsigned long long @@ drivers/cpufreq/powernv-cpufreq.c:458:27: sparse: expected restricted __be64 [usertype] chip drivers/cpufreq/powernv-cpufreq.c:458:27: sparse: got unsigned long long drivers/cpufreq/powernv-cpufreq.c:459:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] throttle_status @@ got unsigned long long @@ drivers/cpufreq/powernv-cpufreq.c:459:38: sparse: expected restricted __be64 [usertype] throttle_status drivers/cpufreq/powernv-cpufreq.c:459:38: sparse: got unsigned long long >> drivers/cpufreq/powernv-cpufreq.c:469:25: sparse: sparse: restricted __be64 degrades to integer drivers/cpufreq/powernv-cpufreq.c:470:25: sparse: sparse: cast from restricted __be64 drivers/cpufreq/powernv-cpufreq.c:470:25: sparse: sparse: restricted __be64 degrades to integer drivers/cpufreq/powernv-cpufreq.c:474:25: sparse: sparse: cast from restricted __be64 drivers/cpufreq/powernv-cpufreq.c:474:25: sparse: sparse: restricted __be64 degrades to integer drivers/cpufreq/powernv-cpufreq.c:438:21: sparse: sparse: restricted __be64 degrades to integer drivers/cpufreq/powernv-cpufreq.c:438:21: sparse: sparse: restricted __be64 degrades to integer drivers/cpufreq/powernv-cpufreq.c: In function 'powernv_cpufreq_throttle_check': drivers/cpufreq/powernv-cpufreq.c:318:33: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 318 | if (chips[i].id == cpu_to_chip_id(cpu)) | ^~ In file included from include/linux/rcupdate.h:40, from include/linux/idr.h:18, from include/linux/kernfs.h:14, from include/linux/sysfs.h:15, from drivers/cpufreq/powernv-cpufreq.c:23: drivers/cpufreq/powernv-cpufreq.c: In function 'init_chip_info': include/linux/cpumask.h:221:23: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 221 | (cpu) < nr_cpu_ids;) | ^ include/linux/cpumask.h:714:36: note: in expansion of macro 'for_each_cpu' 714 | #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask) | ^~~~~~~~~~~~ drivers/cpufreq/powernv-cpufreq.c:511:9: note: in expansion of macro 'for_each_possible_cpu' 511 | for_each_possible_cpu(cpu) { | ^~~~~~~~~~~~~~~~~~~~~ drivers/cpufreq/powernv-cpufreq.c:524:23: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 524 | for (i = 0; i < nr_chips; i++) { | ^ vim +469 drivers/cpufreq/powernv-cpufreq.c 417 418 static char throttle_reason[][30] = { 419 "No throttling", 420 "Power Cap", 421 "Processor Over Temperature", 422 "Power Supply Failure", 423 "Over Current", 424 "OCC Reset" 425 }; 426 427 static int powernv_cpufreq_occ_msg(struct notifier_block *nb, 428 unsigned long msg_type, void *_msg) 429 { 430 struct opal_msg *msg = _msg; 431 struct opal_occ_msg omsg; 432 433 if (msg_type != OPAL_MSG_OCC) 434 return 0; 435 > 436 omsg.type = be64_to_cpu(msg->params[0]); 437 438 switch (omsg.type) { 439 case OCC_RESET: 440 occ_reset = true; 441 /* 442 * powernv_cpufreq_throttle_check() is called in 443 * target() callback which can detect the throttle state 444 * for governors like ondemand. 445 * But static governors will not call target() often thus 446 * report throttling here. 447 */ 448 if (!throttled) { 449 throttled = true; 450 pr_crit("CPU Frequency is throttled\n"); 451 } 452 pr_info("OCC: Reset\n"); 453 break; 454 case OCC_LOAD: 455 pr_info("OCC: Loaded\n"); 456 break; 457 case OCC_THROTTLE: 458 omsg.chip = be64_to_cpu(msg->params[1]); 459 omsg.throttle_status = be64_to_cpu(msg->params[2]); 460 461 if (occ_reset) { 462 occ_reset = false; 463 throttled = false; 464 pr_info("OCC: Active\n"); 465 return 0; 466 } 467 468 if (omsg.throttle_status && > 469 omsg.throttle_status <= OCC_MAX_THROTTLE_STATUS) 470 pr_info("OCC: Chip %u Pmax reduced due to %s\n", 471 (unsigned int)omsg.chip, 472 throttle_reason[omsg.throttle_status]); 473 else if (!omsg.throttle_status) 474 pr_info("OCC: Chip %u %s\n", (unsigned int)omsg.chip, 475 throttle_reason[omsg.throttle_status]); 476 } 477 return 0; 478 } 479 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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