OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/drivers/perf
History
Jean-Philippe Brucker c2ad0dc7b9 pmu/smmuv3: Clear IRQ affinity hint on device removal 
[ Upstream commit 10f6cd2af2 ]

Currently when trying to remove the SMMUv3 PMU module we get a
WARN_ON_ONCE from free_irq(), because the affinity hint set during probe
hasn't been properly cleared.

[  238.878383] WARNING: CPU: 0 PID: 175 at kernel/irq/manage.c:1744 free_irq+0x324/0x358
...
[  238.897263] Call trace:
[  238.897998]  free_irq+0x324/0x358
[  238.898792]  devm_irq_release+0x18/0x28
[  238.899189]  release_nodes+0x1b0/0x228
[  238.899984]  devres_release_all+0x38/0x60
[  238.900779]  device_release_driver_internal+0x10c/0x1d0
[  238.901574]  driver_detach+0x50/0xe0
[  238.902368]  bus_remove_driver+0x5c/0xd8
[  238.903448]  driver_unregister+0x30/0x60
[  238.903958]  platform_driver_unregister+0x14/0x20
[  238.905075]  arm_smmu_pmu_exit+0x1c/0xecc [arm_smmuv3_pmu]
[  238.905547]  __arm64_sys_delete_module+0x14c/0x260
[  238.906342]  el0_svc_common.constprop.0+0x74/0x178
[  238.907355]  do_el0_svc+0x24/0x90
[  238.907932]  el0_sync_handler+0x11c/0x198
[  238.908979]  el0_sync+0x158/0x180

Just like the other perf drivers, clear the affinity hint before
releasing the device.

Fixes: 7d839b4b9e ("perf/smmuv3: Add arm64 smmuv3 pmu driver")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20200422084805.237738-1-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-06-22 09:30:54 +02:00
..
hisilicon perf: Remove dev_err() usage after platform_get_irq() 2019-07-31 17:15:20 +01:00
Kconfig drivers/perf: imx_ddr: Add DDR performance counter support to perf 2019-06-13 11:07:57 +01:00
Makefile drivers/perf: imx_ddr: Add DDR performance counter support to perf 2019-06-13 11:07:57 +01:00
arm-cci.c perf/arm-cci: Remove broken race mitigation 2019-04-23 12:29:23 +01:00
arm-ccn.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
arm_dsu_pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
arm_pmu.c drivers/perf: arm_pmu: Fix failure path in PM notifier 2019-07-29 11:43:48 +01:00
arm_pmu_acpi.c drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer 2020-03-25 08:25:47 +01:00
arm_pmu_platform.c
…
arm_smmuv3_pmu.c pmu/smmuv3: Clear IRQ affinity hint on device removal 2020-06-22 09:30:54 +02:00
arm_spe_pmu.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
fsl_imx8_ddr_perf.c drivers/perf: fsl_imx8_ddr: Correct the CLEAR bit definition 2020-03-25 08:25:47 +01:00
qcom_l2_pmu.c perf: Remove dev_err() usage after platform_get_irq() 2019-07-31 17:15:20 +01:00
qcom_l3_pmu.c docs: perf: move to the admin-guide 2019-07-15 09:20:27 -03:00
thunderx2_pmu.c For drivers that do not support context exclusion let's advertise the 2019-01-21 11:01:24 +01:00
xgene_pmu.c perf: Remove dev_err() usage after platform_get_irq() 2019-07-31 17:15:20 +01:00