* [mark:perf/overflow 1/3] drivers/perf/arm_xscale_pmu.c:490:2: error: use of undeclared identifier 'regs'
@ 2024-09-26 1:52 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-09-26 1:52 UTC (permalink / raw)
To: Mark Rutland; +Cc: llvm, oe-kbuild-all
Hi Mark,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git perf/overflow
head: 06cbb8d243d9460a076f27bcd65e20f315ff8548
commit: 63eb790cce010268faf55e9844a7688bb9da6b1a [1/3] arm_pmu: centralise event overflow handling
config: arm-randconfig-004-20240926 (https://download.01.org/0day-ci/archive/20240926/202409260959.0FgHD18l-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240926/202409260959.0FgHD18l-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409260959.0FgHD18l-lkp@intel.com/
All errors (new ones prefixed by >>):
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:74:41: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
74 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = XSCALE_PERFCTR_DCACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:75:44: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
75 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = XSCALE_PERFCTR_DCACHE_ACCESS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:76:42: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
76 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = XSCALE_PERFCTR_DCACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:78:41: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
78 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = XSCALE_PERFCTR_ICACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:80:42: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
80 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = XSCALE_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:81:43: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
81 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = XSCALE_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:83:42: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
83 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = XSCALE_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_xscale_pmu.c:84:43: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
84 | [C(ITLB)][C(OP_WRITE)][C(RESULT_MISS)] = XSCALE_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/arm_xscale_pmu.c:71:2: note: previous initialization is here
71 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:49:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
49 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:41:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
41 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
>> drivers/perf/arm_xscale_pmu.c:490:2: error: use of undeclared identifier 'regs'
490 | regs = get_irq_regs();
| ^
15 warnings and 1 error generated.
vim +/regs +490 drivers/perf/arm_xscale_pmu.c
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 470
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 471 static irqreturn_t
0788f1e97324d8 arch/arm/kernel/perf_event_xscale.c Mark Rutland 2018-05-10 472 xscale2pmu_handle_irq(struct arm_pmu *cpu_pmu)
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 473 {
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 474 unsigned long pmnc, of_flags;
11679250860700 arch/arm/kernel/perf_event_xscale.c Mark Rutland 2014-05-13 475 struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events);
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 476 int idx;
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 477
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 478 /* Disable the PMU. */
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 479 pmnc = xscale2pmu_read_pmnc();
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 480 xscale2pmu_write_pmnc(pmnc & ~XSCALE_PMU_ENABLE);
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 481
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 482 /* Check the overflow flag register. */
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 483 of_flags = xscale2pmu_read_overflow_flags();
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 484 if (!(of_flags & XSCALE2_OVERFLOWED_MASK))
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 485 return IRQ_NONE;
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 486
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 487 /* Clear the overflow bits. */
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 488 xscale2pmu_write_overflow_flags(of_flags);
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 489
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 @490 regs = get_irq_regs();
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 491
bf5ffc8c80e0cf drivers/perf/arm_xscale_pmu.c Rob Herring (Arm 2024-07-31 492) for_each_set_bit(idx, cpu_pmu->cntr_mask, XSCALE2_NUM_COUNTERS) {
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 493 struct perf_event *event = cpuc->events[idx];
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 494
f6f5a30c834135 arch/arm/kernel/perf_event_xscale.c Will Deacon 2012-03-06 495 if (!event)
f6f5a30c834135 arch/arm/kernel/perf_event_xscale.c Will Deacon 2012-03-06 496 continue;
f6f5a30c834135 arch/arm/kernel/perf_event_xscale.c Will Deacon 2012-03-06 497
3f31ae121348af arch/arm/kernel/perf_event_xscale.c Will Deacon 2012-03-06 498 if (!xscale2_pmnc_counter_has_overflowed(of_flags, idx))
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 499 continue;
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 500
63eb790cce0102 drivers/perf/arm_xscale_pmu.c Mark Rutland 2023-12-05 501 armpmu_event_overflow(event);
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 502 }
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 503
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 504 irq_work_run();
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 505
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 506 /*
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 507 * Re-enable the PMU.
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 508 */
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 509 pmnc = xscale2pmu_read_pmnc() | XSCALE_PMU_ENABLE;
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 510 xscale2pmu_write_pmnc(pmnc);
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 511
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 512 return IRQ_HANDLED;
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 513 }
43eab87828fee6 arch/arm/kernel/perf_event_xscale.c Will Deacon 2010-11-13 514
:::::: The code at line 490 was first introduced by commit
:::::: 43eab87828fee65f89f4088736b2b7a187390a2f ARM: perf: separate PMU backends into multiple files
:::::: TO: Will Deacon <will.deacon@arm.com>
:::::: CC: Will Deacon <will.deacon@arm.com>
--
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https://github.com/intel/lkp-tests/wiki
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