[soc:soc/arm 5/5] arch/arm/kernel/perf_event_v6.c:455:13: warning: 'armv6mpcore_pmu_disable_event' defined but not used
kernel test robot
lkp at intel.com
Fri Dec 22 22:54:38 PST 2023
tree: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git soc/arm
head: 2560cffd2134c2e070dee369b37f6e55438087f9
commit: 2560cffd2134c2e070dee369b37f6e55438087f9 [5/5] ARM: Delete ARM11MPCore (ARM11 ARMv6K SMP) support
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20231223/202312231434.wNbFQ3Bx-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231223/202312231434.wNbFQ3Bx-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312231434.wNbFQ3Bx-lkp@intel.com/
All warnings (new ones prefixed by >>):
arch/arm/kernel/perf_event_v6.c:83:51: warning: initialized field overwritten [-Woverride-init]
83 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV6_PERFCTR_LSU_FULL_STALL,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:83:51: note: (near initialization for 'armv6_perf_map[8]')
arch/arm/kernel/perf_event_v6.c:96:51: warning: initialized field overwritten [-Woverride-init]
96 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV6_PERFCTR_DCACHE_ACCESS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:96:51: note: (near initialization for 'armv6_perf_cache_map[0][0][0]')
arch/arm/kernel/perf_event_v6.c:97:51: warning: initialized field overwritten [-Woverride-init]
97 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV6_PERFCTR_DCACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:97:51: note: (near initialization for 'armv6_perf_cache_map[0][0][1]')
arch/arm/kernel/perf_event_v6.c:98:51: warning: initialized field overwritten [-Woverride-init]
98 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV6_PERFCTR_DCACHE_ACCESS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:98:51: note: (near initialization for 'armv6_perf_cache_map[0][1][0]')
arch/arm/kernel/perf_event_v6.c:99:51: warning: initialized field overwritten [-Woverride-init]
99 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6_PERFCTR_DCACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:99:51: note: (near initialization for 'armv6_perf_cache_map[0][1][1]')
arch/arm/kernel/perf_event_v6.c:101:51: warning: initialized field overwritten [-Woverride-init]
101 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV6_PERFCTR_ICACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:101:51: note: (near initialization for 'armv6_perf_cache_map[1][0][1]')
arch/arm/kernel/perf_event_v6.c:109:51: warning: initialized field overwritten [-Woverride-init]
109 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV6_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:109:51: note: (near initialization for 'armv6_perf_cache_map[3][0][1]')
arch/arm/kernel/perf_event_v6.c:110:51: warning: initialized field overwritten [-Woverride-init]
110 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:110:51: note: (near initialization for 'armv6_perf_cache_map[3][1][1]')
arch/arm/kernel/perf_event_v6.c:112:51: warning: initialized field overwritten [-Woverride-init]
112 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV6_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:112:51: note: (near initialization for 'armv6_perf_cache_map[4][0][1]')
arch/arm/kernel/perf_event_v6.c:113:51: warning: initialized field overwritten [-Woverride-init]
113 | [C(ITLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:113:51: note: (near initialization for 'armv6_perf_cache_map[4][1][1]')
arch/arm/kernel/perf_event_v6.c:146:51: warning: initialized field overwritten [-Woverride-init]
146 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV6MPCORE_PERFCTR_CPU_CYCLES,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:146:51: note: (near initialization for 'armv6mpcore_perf_map[0]')
arch/arm/kernel/perf_event_v6.c:147:51: warning: initialized field overwritten [-Woverride-init]
147 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_INSTR_EXEC,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:147:51: note: (near initialization for 'armv6mpcore_perf_map[1]')
arch/arm/kernel/perf_event_v6.c:148:51: warning: initialized field overwritten [-Woverride-init]
148 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_BR_EXEC,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:148:51: note: (near initialization for 'armv6mpcore_perf_map[4]')
arch/arm/kernel/perf_event_v6.c:149:51: warning: initialized field overwritten [-Woverride-init]
149 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV6MPCORE_PERFCTR_BR_MISPREDICT,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:149:51: note: (near initialization for 'armv6mpcore_perf_map[5]')
arch/arm/kernel/perf_event_v6.c:150:51: warning: initialized field overwritten [-Woverride-init]
150 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV6MPCORE_PERFCTR_IBUF_STALL,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:150:51: note: (near initialization for 'armv6mpcore_perf_map[7]')
arch/arm/kernel/perf_event_v6.c:151:51: warning: initialized field overwritten [-Woverride-init]
151 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV6MPCORE_PERFCTR_LSU_FULL_STALL,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:151:51: note: (near initialization for 'armv6mpcore_perf_map[8]')
arch/arm/kernel/perf_event_v6.c:159:51: warning: initialized field overwritten [-Woverride-init]
159 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV6MPCORE_PERFCTR_DCACHE_RDACCESS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:159:51: note: (near initialization for 'armv6mpcore_perf_cache_map[0][0][0]')
arch/arm/kernel/perf_event_v6.c:160:51: warning: initialized field overwritten [-Woverride-init]
160 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_DCACHE_RDMISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:160:51: note: (near initialization for 'armv6mpcore_perf_cache_map[0][0][1]')
arch/arm/kernel/perf_event_v6.c:161:51: warning: initialized field overwritten [-Woverride-init]
161 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV6MPCORE_PERFCTR_DCACHE_WRACCESS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:161:51: note: (near initialization for 'armv6mpcore_perf_cache_map[0][1][0]')
arch/arm/kernel/perf_event_v6.c:162:51: warning: initialized field overwritten [-Woverride-init]
162 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_DCACHE_WRMISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:162:51: note: (near initialization for 'armv6mpcore_perf_cache_map[0][1][1]')
arch/arm/kernel/perf_event_v6.c:164:51: warning: initialized field overwritten [-Woverride-init]
164 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_ICACHE_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:164:51: note: (near initialization for 'armv6mpcore_perf_cache_map[1][0][1]')
arch/arm/kernel/perf_event_v6.c:172:51: warning: initialized field overwritten [-Woverride-init]
172 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:172:51: note: (near initialization for 'armv6mpcore_perf_cache_map[3][0][1]')
arch/arm/kernel/perf_event_v6.c:173:51: warning: initialized field overwritten [-Woverride-init]
173 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_DTLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:173:51: note: (near initialization for 'armv6mpcore_perf_cache_map[3][1][1]')
arch/arm/kernel/perf_event_v6.c:175:51: warning: initialized field overwritten [-Woverride-init]
175 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:175:51: note: (near initialization for 'armv6mpcore_perf_cache_map[4][0][1]')
arch/arm/kernel/perf_event_v6.c:176:51: warning: initialized field overwritten [-Woverride-init]
176 | [C(ITLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV6MPCORE_PERFCTR_ITLB_MISS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/kernel/perf_event_v6.c:176:51: note: (near initialization for 'armv6mpcore_perf_cache_map[4][1][1]')
>> arch/arm/kernel/perf_event_v6.c:455:13: warning: 'armv6mpcore_pmu_disable_event' defined but not used [-Wunused-function]
455 | static void armv6mpcore_pmu_disable_event(struct perf_event *event)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm/kernel/perf_event_v6.c:154:23: warning: 'armv6mpcore_perf_cache_map' defined but not used [-Wunused-const-variable=]
154 | static const unsigned armv6mpcore_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm/kernel/perf_event_v6.c:144:23: warning: 'armv6mpcore_perf_map' defined but not used [-Wunused-const-variable=]
144 | static const unsigned armv6mpcore_perf_map[PERF_COUNT_HW_MAX] = {
| ^~~~~~~~~~~~~~~~~~~~
vim +/armv6mpcore_pmu_disable_event +455 arch/arm/kernel/perf_event_v6.c
43eab87828fee6 Will Deacon 2010-11-13 454
ed6f2a522398c2 Sudeep Holla 2012-07-30 @455 static void armv6mpcore_pmu_disable_event(struct perf_event *event)
43eab87828fee6 Will Deacon 2010-11-13 456 {
43eab87828fee6 Will Deacon 2010-11-13 457 unsigned long val, mask, flags, evt = 0;
ed6f2a522398c2 Sudeep Holla 2012-07-30 458 struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
ed6f2a522398c2 Sudeep Holla 2012-07-30 459 struct hw_perf_event *hwc = &event->hw;
11679250860700 Mark Rutland 2014-05-13 460 struct pmu_hw_events *events = this_cpu_ptr(cpu_pmu->hw_events);
ed6f2a522398c2 Sudeep Holla 2012-07-30 461 int idx = hwc->idx;
43eab87828fee6 Will Deacon 2010-11-13 462
43eab87828fee6 Will Deacon 2010-11-13 463 if (ARMV6_CYCLE_COUNTER == idx) {
43eab87828fee6 Will Deacon 2010-11-13 464 mask = ARMV6_PMCR_CCOUNT_IEN;
43eab87828fee6 Will Deacon 2010-11-13 465 } else if (ARMV6_COUNTER0 == idx) {
43eab87828fee6 Will Deacon 2010-11-13 466 mask = ARMV6_PMCR_COUNT0_IEN;
43eab87828fee6 Will Deacon 2010-11-13 467 } else if (ARMV6_COUNTER1 == idx) {
43eab87828fee6 Will Deacon 2010-11-13 468 mask = ARMV6_PMCR_COUNT1_IEN;
43eab87828fee6 Will Deacon 2010-11-13 469 } else {
43eab87828fee6 Will Deacon 2010-11-13 470 WARN_ONCE(1, "invalid counter number (%d)\n", idx);
43eab87828fee6 Will Deacon 2010-11-13 471 return;
43eab87828fee6 Will Deacon 2010-11-13 472 }
43eab87828fee6 Will Deacon 2010-11-13 473
43eab87828fee6 Will Deacon 2010-11-13 474 /*
43eab87828fee6 Will Deacon 2010-11-13 475 * Unlike UP ARMv6, we don't have a way of stopping the counters. We
43eab87828fee6 Will Deacon 2010-11-13 476 * simply disable the interrupt reporting.
43eab87828fee6 Will Deacon 2010-11-13 477 */
0f78d2d5ccf72e Mark Rutland 2011-04-28 478 raw_spin_lock_irqsave(&events->pmu_lock, flags);
43eab87828fee6 Will Deacon 2010-11-13 479 val = armv6_pmcr_read();
43eab87828fee6 Will Deacon 2010-11-13 480 val &= ~mask;
43eab87828fee6 Will Deacon 2010-11-13 481 val |= evt;
43eab87828fee6 Will Deacon 2010-11-13 482 armv6_pmcr_write(val);
0f78d2d5ccf72e Mark Rutland 2011-04-28 483 raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
43eab87828fee6 Will Deacon 2010-11-13 484 }
43eab87828fee6 Will Deacon 2010-11-13 485
:::::: The code at line 455 was first introduced by commit
:::::: ed6f2a522398c26559f4da23a80aa6195e6284c7 ARM: perf: consistently use struct perf_event in arm_pmu functions
:::::: TO: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha at arm.com>
:::::: CC: Will Deacon <will.deacon at arm.com>
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