Messages in this thread Patch in this message | | | From | Anshuman Khandual <> | Subject | [PATCH 2/3] arm64/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCH | Date | Mon, 29 Aug 2022 12:25:06 +0530 |
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Ensure all platform specific event flags are within PERF_EVENT_FLAG_ARCH.
Cc: Will Deacon <will@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-perf-users@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> --- arch/arm64/kernel/perf_event.c | 1 + drivers/perf/apple_m1_cpu_pmu.c | 1 + drivers/perf/arm_spe_pmu.c | 1 + 3 files changed, 3 insertions(+)
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index cb69ff1e6138..cf9cedb07f92 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1390,6 +1390,7 @@ static struct platform_driver armv8_pmu_driver = { static int __init armv8_pmu_driver_init(void) { + BUILD_BUG_ON(~PERF_EVENT_FLAG_ARCH & ARMPMU_EVT_64BIT); if (acpi_disabled) return platform_driver_register(&armv8_pmu_driver); else diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c index 979a7c2b4f56..9ec8c694d0f2 100644 --- a/drivers/perf/apple_m1_cpu_pmu.c +++ b/drivers/perf/apple_m1_cpu_pmu.c @@ -568,6 +568,7 @@ MODULE_DEVICE_TABLE(of, m1_pmu_of_device_ids); static int m1_pmu_device_probe(struct platform_device *pdev) { + BUILD_BUG_ON(~PERF_EVENT_FLAG_ARCH & ARMPMU_EVT_47BIT); return arm_pmu_device_probe(pdev, m1_pmu_of_device_ids, NULL); } diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index b65a7d9640e1..74344abf4b11 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -1276,6 +1276,7 @@ static int __init arm_spe_pmu_init(void) if (ret) cpuhp_remove_multi_state(arm_spe_pmu_online); + BUILD_BUG_ON(~PERF_EVENT_FLAG_ARCH & SPE_PMU_HW_FLAGS_CX); return ret; } -- 2.25.1
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