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Message-ID: <202505071747.2b2WEajY-lkp@intel.com>
Date: Wed, 7 May 2025 18:00:15 +0800
From: kernel test robot <lkp@...el.com>
To: Nick Chan <towinchenmi@...il.com>, Will Deacon <will@...nel.org>,
Mark Rutland <mark.rutland@....com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Catalin Marinas <catalin.marinas@....com>,
Sven Peter <sven@...npeter.dev>, Janne Grunau <j@...nau.net>,
Alyssa Rosenzweig <alyssa@...enzweig.io>,
Neal Gompa <neal@...pa.dev>
Cc: oe-kbuild-all@...ts.linux.dev, Marc Zyngier <maz@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
linux-perf-users@...r.kernel.org, devicetree@...r.kernel.org,
asahi@...ts.linux.dev, linux-kernel@...r.kernel.org,
Nick Chan <towinchenmi@...il.com>
Subject: Re: [PATCH RESEND v6 03/21] drivers/perf: apple_m1: Support
per-implementation event tables
Hi Nick,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 0af2f6be1b4281385b618cb86ad946eded089ac8]
url: https://github.com/intel-lab-lkp/linux/commits/Nick-Chan/dt-bindings-arm-pmu-Add-Apple-A7-A11-SoC-CPU-PMU-compatibles/20250429-114920
base: 0af2f6be1b4281385b618cb86ad946eded089ac8
patch link: https://lore.kernel.org/r/20250429-apple-cpmu-v6-3-ed21815f0c3f%40gmail.com
patch subject: [PATCH RESEND v6 03/21] drivers/perf: apple_m1: Support per-implementation event tables
config: arm64-randconfig-004-20250501 (https://download.01.org/0day-ci/archive/20250507/202505071747.2b2WEajY-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505071747.2b2WEajY-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/202505071747.2b2WEajY-lkp@intel.com/
All warnings (new ones prefixed by >>):
include/linux/bits.h:34:2: note: (near initialization for 'm1_pmu_event_affinity[248]')
34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^
drivers/perf/apple_m1_cpu_pmu.c:27:23: note: in expansion of macro 'GENMASK'
27 | #define ONLY_2_TO_7 GENMASK(7, 2)
| ^~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:163:35: note: in expansion of macro 'ONLY_2_TO_7'
163 | [M1_PMU_PERFCTR_UNKNOWN_f8] = ONLY_2_TO_7,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:28:22: warning: initialized field overwritten [-Woverride-init]
28 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^
drivers/perf/apple_m1_cpu_pmu.c:164:35: note: in expansion of macro 'ONLY_2_4_6'
164 | [M1_PMU_PERFCTR_UNKNOWN_fd] = ONLY_2_4_6,
| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:28:22: note: (near initialization for 'm1_pmu_event_affinity[253]')
28 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^
drivers/perf/apple_m1_cpu_pmu.c:164:35: note: in expansion of macro 'ONLY_2_4_6'
164 | [M1_PMU_PERFCTR_UNKNOWN_fd] = ONLY_2_4_6,
| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:169:32: warning: initialized field overwritten [-Woverride-init]
169 | [PERF_COUNT_HW_CPU_CYCLES] = M1_PMU_PERFCTR_CORE_ACTIVE_CYCLE,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:169:32: note: (near initialization for 'm1_pmu_perf_map[0]')
drivers/perf/apple_m1_cpu_pmu.c:170:34: warning: initialized field overwritten [-Woverride-init]
170 | [PERF_COUNT_HW_INSTRUCTIONS] = M1_PMU_PERFCTR_INST_ALL,
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:170:34: note: (near initialization for 'm1_pmu_perf_map[1]')
drivers/perf/apple_m1_cpu_pmu.c:171:40: warning: initialized field overwritten [-Woverride-init]
171 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = M1_PMU_PERFCTR_INST_BRANCH,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:171:40: note: (near initialization for 'm1_pmu_perf_map[4]')
drivers/perf/apple_m1_cpu_pmu.c:172:35: warning: initialized field overwritten [-Woverride-init]
172 | [PERF_COUNT_HW_BRANCH_MISSES] = M1_PMU_PERFCTR_BRANCH_MISPRED_NONSPEC,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:172:35: note: (near initialization for 'm1_pmu_perf_map[5]')
drivers/perf/apple_m1_cpu_pmu.c:176:40: warning: initialized field overwritten [-Woverride-init]
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:180:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
180 | M1_PMUV3_EVENT_MAP(INST_RETIRED, INST_ALL),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: note: (near initialization for 'm1_pmu_pmceid_map[8]')
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:180:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
180 | M1_PMUV3_EVENT_MAP(INST_RETIRED, INST_ALL),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: warning: initialized field overwritten [-Woverride-init]
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:181:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
181 | M1_PMUV3_EVENT_MAP(CPU_CYCLES, CORE_ACTIVE_CYCLE),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: note: (near initialization for 'm1_pmu_pmceid_map[17]')
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:181:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
181 | M1_PMUV3_EVENT_MAP(CPU_CYCLES, CORE_ACTIVE_CYCLE),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: warning: initialized field overwritten [-Woverride-init]
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:182:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
182 | M1_PMUV3_EVENT_MAP(BR_RETIRED, INST_BRANCH),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: note: (near initialization for 'm1_pmu_pmceid_map[33]')
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:182:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
182 | M1_PMUV3_EVENT_MAP(BR_RETIRED, INST_BRANCH),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: warning: initialized field overwritten [-Woverride-init]
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:183:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
183 | M1_PMUV3_EVENT_MAP(BR_MIS_PRED_RETIRED, BRANCH_MISPRED_NONSPEC),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:176:40: note: (near initialization for 'm1_pmu_pmceid_map[34]')
176 | [ARMV8_PMUV3_PERFCTR_##pmuv3_event] = M1_PMU_PERFCTR_##m1_event
| ^~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:183:2: note: in expansion of macro 'M1_PMUV3_EVENT_MAP'
183 | M1_PMUV3_EVENT_MAP(BR_MIS_PRED_RETIRED, BRANCH_MISPRED_NONSPEC),
| ^~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c: In function 'm1_pmu_enable_event':
drivers/perf/apple_m1_cpu_pmu.c:422:5: warning: variable 'evt' set but not used [-Wunused-but-set-variable]
422 | u8 evt;
| ^~~
drivers/perf/apple_m1_cpu_pmu.c:421:13: warning: variable 'kernel' set but not used [-Wunused-but-set-variable]
421 | bool user, kernel;
| ^~~~~~
drivers/perf/apple_m1_cpu_pmu.c:421:7: warning: variable 'user' set but not used [-Wunused-but-set-variable]
421 | bool user, kernel;
| ^~~~
In file included from include/linux/bits.h:22,
from include/linux/bitops.h:6,
from include/linux/of.h:15,
from drivers/perf/apple_m1_cpu_pmu.c:13:
drivers/perf/apple_m1_cpu_pmu.c: At top level:
>> include/linux/build_bug.h:16:44: warning: anonymous struct declared inside parameter list will not be visible outside of this definition or declaration
16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
| ^~~~~~
include/linux/bits.h:24:35: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
24 | #define GENMASK_INPUT_CHECK(h, l) BUILD_BUG_ON_ZERO(const_true((l) > (h)))
| ^~~~~~~~~~~~~~~~~
include/linux/bits.h:34:3: note: in expansion of macro 'GENMASK_INPUT_CHECK'
34 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:24:27: note: in expansion of macro 'GENMASK'
24 | #define M1_PMU_CFG_EVENT GENMASK(7, 0)
| ^~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:496:32: note: in expansion of macro 'M1_PMU_CFG_EVENT'
496 | const u16 event_affinities[M1_PMU_CFG_EVENT])
| ^~~~~~~~~~~~~~~~
vim +16 include/linux/build_bug.h
bc6245e5efd70c Ian Abbott 2017-07-10 6
bc6245e5efd70c Ian Abbott 2017-07-10 7 #ifdef __CHECKER__
bc6245e5efd70c Ian Abbott 2017-07-10 8 #define BUILD_BUG_ON_ZERO(e) (0)
bc6245e5efd70c Ian Abbott 2017-07-10 9 #else /* __CHECKER__ */
bc6245e5efd70c Ian Abbott 2017-07-10 10 /*
bc6245e5efd70c Ian Abbott 2017-07-10 11 * Force a compilation error if condition is true, but also produce a
8788994376d84d Rikard Falkeborn 2019-12-04 12 * result (of value 0 and type int), so the expression can be used
bc6245e5efd70c Ian Abbott 2017-07-10 13 * e.g. in a structure initializer (or where-ever else comma expressions
bc6245e5efd70c Ian Abbott 2017-07-10 14 * aren't permitted).
bc6245e5efd70c Ian Abbott 2017-07-10 15 */
8788994376d84d Rikard Falkeborn 2019-12-04 @16 #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
527edbc18a70e7 Masahiro Yamada 2019-01-03 17 #endif /* __CHECKER__ */
527edbc18a70e7 Masahiro Yamada 2019-01-03 18
--
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