tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a4412fdd49dc011bcc2c0d81ac4cab7457092650 commit: f3c0eba287049237b23d1300376768293eb89e69 perf: Add a few assertions date: 3 months ago config: loongarch-randconfig-s031-20221201 compiler: loongarch64-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f3c0eba287049237b23d1300376768293eb89e69 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout f3c0eba287049237b23d1300376768293eb89e69 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=loongarch SHELL=/bin/bash drivers/perf/ mm/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_dmc620_pmu.c:524:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_dmc620_pmu.c:524:9: sparse: expected void *ptr drivers/perf/arm_dmc620_pmu.c:524:9: sparse: got int [noderef] __percpu * -- >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got unsigned int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got int [noderef] __percpu * >> drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: expected void *ptr drivers/perf/arm_smmuv3_pmu.c:403:9: sparse: got int [noderef] __percpu * drivers/perf/arm_smmuv3_pmu.c: note: in included file (through arch/loongarch/include/asm/io.h, arch/loongarch/include/asm/pgtable.h, arch/loongarch/include/asm/uaccess.h, ...): include/asm-generic/io.h:239:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:239:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:239:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:290:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:290:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:290:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:389:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:389:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:389:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:379:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:379:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:379:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:379:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:379:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:379:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:389:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:389:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:389:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:389:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:389:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:389:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:389:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:389:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:389:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:389:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] value @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:389:22: sparse: expected unsigned long long [usertype] value include/asm-generic/io.h:389:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:335:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:335:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:348:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:348:15: sparse: sparse: cast to restricted __le64 vim +524 drivers/perf/arm_dmc620_pmu.c 53c218da220c36 Tuan Phan 2020-11-04 482 53c218da220c36 Tuan Phan 2020-11-04 483 static int dmc620_pmu_event_init(struct perf_event *event) 53c218da220c36 Tuan Phan 2020-11-04 484 { 53c218da220c36 Tuan Phan 2020-11-04 485 struct dmc620_pmu *dmc620_pmu = to_dmc620_pmu(event->pmu); 53c218da220c36 Tuan Phan 2020-11-04 486 struct hw_perf_event *hwc = &event->hw; 53c218da220c36 Tuan Phan 2020-11-04 487 struct perf_event *sibling; 53c218da220c36 Tuan Phan 2020-11-04 488 53c218da220c36 Tuan Phan 2020-11-04 489 if (event->attr.type != event->pmu->type) 53c218da220c36 Tuan Phan 2020-11-04 490 return -ENOENT; 53c218da220c36 Tuan Phan 2020-11-04 491 53c218da220c36 Tuan Phan 2020-11-04 492 /* 53c218da220c36 Tuan Phan 2020-11-04 493 * DMC 620 PMUs are shared across all cpus and cannot 53c218da220c36 Tuan Phan 2020-11-04 494 * support task bound and sampling events. 53c218da220c36 Tuan Phan 2020-11-04 495 */ 53c218da220c36 Tuan Phan 2020-11-04 496 if (is_sampling_event(event) || 53c218da220c36 Tuan Phan 2020-11-04 497 event->attach_state & PERF_ATTACH_TASK) { 53c218da220c36 Tuan Phan 2020-11-04 498 dev_dbg(dmc620_pmu->pmu.dev, 53c218da220c36 Tuan Phan 2020-11-04 499 "Can't support per-task counters\n"); 53c218da220c36 Tuan Phan 2020-11-04 500 return -EOPNOTSUPP; 53c218da220c36 Tuan Phan 2020-11-04 501 } 53c218da220c36 Tuan Phan 2020-11-04 502 53c218da220c36 Tuan Phan 2020-11-04 503 /* 53c218da220c36 Tuan Phan 2020-11-04 504 * Many perf core operations (eg. events rotation) operate on a 53c218da220c36 Tuan Phan 2020-11-04 505 * single CPU context. This is obvious for CPU PMUs, where one 53c218da220c36 Tuan Phan 2020-11-04 506 * expects the same sets of events being observed on all CPUs, 53c218da220c36 Tuan Phan 2020-11-04 507 * but can lead to issues for off-core PMUs, where each 53c218da220c36 Tuan Phan 2020-11-04 508 * event could be theoretically assigned to a different CPU. To 53c218da220c36 Tuan Phan 2020-11-04 509 * mitigate this, we enforce CPU assignment to one, selected 53c218da220c36 Tuan Phan 2020-11-04 510 * processor. 53c218da220c36 Tuan Phan 2020-11-04 511 */ 53c218da220c36 Tuan Phan 2020-11-04 512 event->cpu = dmc620_pmu->irq->cpu; 53c218da220c36 Tuan Phan 2020-11-04 513 if (event->cpu < 0) 53c218da220c36 Tuan Phan 2020-11-04 514 return -EINVAL; 53c218da220c36 Tuan Phan 2020-11-04 515 53c218da220c36 Tuan Phan 2020-11-04 516 /* 53c218da220c36 Tuan Phan 2020-11-04 517 * We can't atomically disable all HW counters so only one event allowed, 53c218da220c36 Tuan Phan 2020-11-04 518 * although software events are acceptable. 53c218da220c36 Tuan Phan 2020-11-04 519 */ 53c218da220c36 Tuan Phan 2020-11-04 520 if (event->group_leader != event && 53c218da220c36 Tuan Phan 2020-11-04 521 !is_software_event(event->group_leader)) 53c218da220c36 Tuan Phan 2020-11-04 522 return -EINVAL; 53c218da220c36 Tuan Phan 2020-11-04 523 53c218da220c36 Tuan Phan 2020-11-04 @524 for_each_sibling_event(sibling, event->group_leader) { 53c218da220c36 Tuan Phan 2020-11-04 525 if (sibling != event && 53c218da220c36 Tuan Phan 2020-11-04 526 !is_software_event(sibling)) 53c218da220c36 Tuan Phan 2020-11-04 527 return -EINVAL; 53c218da220c36 Tuan Phan 2020-11-04 528 } 53c218da220c36 Tuan Phan 2020-11-04 529 53c218da220c36 Tuan Phan 2020-11-04 530 hwc->idx = -1; 53c218da220c36 Tuan Phan 2020-11-04 531 return 0; 53c218da220c36 Tuan Phan 2020-11-04 532 } 53c218da220c36 Tuan Phan 2020-11-04 533 :::::: The code at line 524 was first introduced by commit :::::: 53c218da220c3619b5befec4674ffa35d590092a driver/perf: Add PMU driver for the ARM DMC-620 memory controller :::::: TO: Tuan Phan :::::: CC: Will Deacon -- 0-DAY CI Kernel Test Service https://01.org/lkp