aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pci/controller/dwc/pcie-qcom-common.c
diff options
context:
space:
mode:
authorYeoreum Yun <[email protected]>2025-03-06 12:11:10 +0000
committerSuzuki K Poulose <[email protected]>2025-03-10 10:40:26 +0000
commitd11eb31db26912e6e3882a2d253e5a79374c412e (patch)
tree44e77260354e9228c49af1a63f75bc9cb2ae51ec /drivers/pci/controller/dwc/pcie-qcom-common.c
parentcoresight-tmc: change tmc_drvdata spinlock's type to raw_spinlock_t (diff)
downloadkernel-d11eb31db26912e6e3882a2d253e5a79374c412e.tar.gz
kernel-d11eb31db26912e6e3882a2d253e5a79374c412e.zip
coresight/ultrasoc: change smb_drv_data spinlock's type to raw_spinlock_t
In ultrasoc-smb drivers, smb_drv_data->spinlock can be held during __schedule() by perf_event_task_sched_out()/in(). Since smb__drv_data->spinlock type is spinlock_t and perf_event_task_sched_out()/in() is called after acquiring rq_lock, which is raw_spinlock_t (an unsleepable lock), this poses an issue in PREEMPT_RT kernel where spinlock_t is sleepable. To address this, change type smb_drv_data->spinlock in ultrasoc-smb drivers, which can be called by perf_event_task_sched_out()/in(), from spinlock_t to raw_spinlock_t. Reviewed-by: James Clark <[email protected]> Signed-off-by: Yeoreum Yun <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]> Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-common.c')
0 files changed, 0 insertions, 0 deletions