Alexandre Ghiti edcab8d5bc drivers: perf: Fix smp_processor_id() use in preemptible code ...

[ Upstream commit 2840dadf0d ]

As reported in [1], the use of smp_processor_id() in
pmu_sbi_device_probe() must be protected by disabling the preemption, so
simple use get_cpu()/put_cpu() instead.

Reported-by: Nam Cao <namcao@linutronix.de>
Closes: https://lore.kernel.org/linux-riscv/20240820074925.ReMKUPP3@linutronix.de/ [1]
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Nam Cao <namcao@linutronix.de>
Fixes: a8625217a0 ("drivers/perf: riscv: Implement SBI PMU snapshot function")
Reported-by: Andrea Parri <parri.andrea@gmail.com>
Tested-by: Andrea Parri <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20240826165210.124696-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-09-18 19:25:15 +02:00

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amlogic

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arm_cspmu

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hisilicon

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alibaba_uncore_drw_pmu.c

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apple_m1_cpu_pmu.c

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arm_dmc620_pmu.c

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arm_dsu_pmu.c

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arm_pmu_acpi.c

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arm_pmu_platform.c

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arm_pmu.c

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arm_pmuv3.c

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arm_smmuv3_pmu.c

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arm_spe_pmu.c

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arm-cci.c

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arm-ccn.c

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arm-cmn.c

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cxl_pmu.c

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dwc_pcie_pmu.c

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fsl_imx8_ddr_perf.c

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fsl_imx9_ddr_perf.c

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Kconfig

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Makefile

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marvell_cn10k_ddr_pmu.c

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marvell_cn10k_tad_pmu.c

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qcom_l2_pmu.c

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qcom_l3_pmu.c

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riscv_pmu_legacy.c

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riscv_pmu_sbi.c

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riscv_pmu.c

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starfive_starlink_pmu.c

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thunderx2_pmu.c

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xgene_pmu.c

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