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linux-next/drivers/perf
Qi Liu f32ed8eb0e drivers/perf: Prevent forced unbinding of PMU drivers
Forcefully unbinding PMU drivers during perf sampling will lead to
a kernel panic, because the perf upper-layer framework call a NULL
pointer in this situation.

To solve this issue, "suppress_bind_attrs" should be set to true, so
that bind/unbind can be disabled via sysfs and prevent unbinding PMU
drivers during perf sampling.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594975763-32966-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-17 10:51:44 +01:00
..
hisilicon drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
arm_dsu_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
arm_pmu_acpi.c drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer 2020-03-02 12:07:35 +00:00
arm_pmu_platform.c perf: Convert to using %pOFn instead of device_node.name 2018-10-01 11:33:17 +01:00
arm_pmu.c drivers/perf: arm_pmu: Fix failure path in PM notifier 2019-07-29 11:43:48 +01:00
arm_smmuv3_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
arm_spe_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
arm-cci.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
arm-ccn.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
fsl_imx8_ddr_perf.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
Kconfig drivers/perf: hisi: Permit modular builds of HiSilicon uncore drivers 2020-05-18 18:18:39 +01:00
Makefile drivers/perf: imx_ddr: Add DDR performance counter support to perf 2019-06-13 11:07:57 +01:00
qcom_l2_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
qcom_l3_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
thunderx2_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00
xgene_pmu.c drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-17 10:51:44 +01:00