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Defined in 2 files as a function:

Referenced in 2 files:

Smatch caller information:

drivers/comedi/drivers/pcl816.c pcl816_ai_poll() -> transfer_from_dma_buf()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->attached 1
PARAM_VALUE 0 dev->mutex.dep_map->name 0-255
PARAM_VALUE 0 dev->mutex.first_waiter 0,4096-ptr_max
PARAM_VALUE 0 dev->mutex.first_waiter->list.prev->next 5159360019465732096
PARAM_VALUE 0 dev->mutex.first_waiter->list.prev->prev 5159360019465732096
PARAM_VALUE 0 dev->mutex.osq.tail.counter 0-s32max
PARAM_VALUE 0 dev->mutex.wait_lock.dep_map->name 0-255
PARAM_VALUE 0 dev->mutex.wait_lock.owner (-1)
PARAM_VALUE 0 dev->mutex.wait_lock.owner_cpu u32max
PARAM_VALUE 0 dev->n_subdevices s32min-(-1),1-s32max
PARAM_VALUE 0 dev->private 4096-ptr_max
PARAM_VALUE 0 dev->subdevices 4096-ptr_max
PARAM_VALUE 1 s 4096-ptr_max
PARAM_VALUE 1 s->busy 4096-ptr_max
PARAM_VALUE 1 s->poll 1-u64max
PARAM_VALUE 3 bufptr 0-1073741822
PARAM_VALUE 4 len 1-1073741823
BUF_SIZE 2 ptr 4096,8192,16384,65280,130816
CAPPED_DATA 1 s->busy 1
CAPPED_DATA 3 bufptr 1
DATA_SOURCE 0 dev $0
DATA_SOURCE 1 s $1
PREEMPT_ADD <- disables preempt
NOCHECK_CALL
LOCK2 flags
LOCK2 0 &dev->mutex
LOCK2 0 &dev->spinlock
TYPE_LOCK (struct comedi_device)->mutex
TYPE_LOCK (struct comedi_device)->spinlock

drivers/comedi/drivers/pcl816.c pcl816_interrupt() -> transfer_from_dma_buf()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->attached 1
PARAM_VALUE 0 dev->private 4096-ptr_max
PARAM_VALUE 0 dev->private->dma 4096-ptr_max
PARAM_VALUE 0 dev->read_subdev 4096-ptr_max
PARAM_VALUE 0 dev->read_subdev->async->run_complete.wait.lock.dep_map->name 0-255
PARAM_VALUE 0 dev->read_subdev->async->run_complete.wait.lock.owner (-1)
PARAM_VALUE 0 dev->read_subdev->async->run_complete.wait.lock.owner_cpu u32max
PARAM_VALUE 0 dev->read_subdev->spin_lock.rlock.dep_map->name 0-255
PARAM_VALUE 1 s 4096-ptr_max
PARAM_VALUE 1 s->async->run_complete.wait.lock.dep_map->name 0-255
PARAM_VALUE 1 s->async->run_complete.wait.lock.owner (-1)
PARAM_VALUE 1 s->async->run_complete.wait.lock.owner_cpu u32max
PARAM_VALUE 1 s->spin_lock.rlock.dep_map->name 0-255
BUF_SIZE 2 ptr 4096,8192,16384,65280,130816
DATA_SOURCE 0 dev $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 flags

drivers/comedi/drivers/pcl812.c pcl812_ai_poll() -> transfer_from_dma_buf()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->attached 1
PARAM_VALUE 0 dev->mutex.dep_map->name 0-255
PARAM_VALUE 0 dev->mutex.first_waiter 0,4096-ptr_max
PARAM_VALUE 0 dev->mutex.first_waiter->list.prev->next 5159360019465732096
PARAM_VALUE 0 dev->mutex.first_waiter->list.prev->prev 5159360019465732096
PARAM_VALUE 0 dev->mutex.osq.tail.counter 0-s32max
PARAM_VALUE 0 dev->mutex.wait_lock.dep_map->name 0-255
PARAM_VALUE 0 dev->mutex.wait_lock.owner (-1)
PARAM_VALUE 0 dev->mutex.wait_lock.owner_cpu u32max
PARAM_VALUE 0 dev->n_subdevices s32min-(-1),1-s32max
PARAM_VALUE 0 dev->private 4096-ptr_max
PARAM_VALUE 0 dev->subdevices 4096-ptr_max
PARAM_VALUE 1 s 4096-ptr_max
PARAM_VALUE 1 s->busy 4096-ptr_max
PARAM_VALUE 1 s->poll 1-u64max
PARAM_VALUE 3 bufptr 0-1073741822
PARAM_VALUE 4 len 1-1073741823
BUF_SIZE 2 ptr 4096,8192,16384,65280,130816
CAPPED_DATA 1 s->busy 1
CAPPED_DATA 3 bufptr 1
DATA_SOURCE 0 dev $0
DATA_SOURCE 1 s $1
PREEMPT_ADD <- disables preempt
NOCHECK_CALL
LOCK2 flags
LOCK2 0 &dev->mutex
LOCK2 0 &dev->spinlock
TYPE_LOCK (struct comedi_device)->mutex
TYPE_LOCK (struct comedi_device)->spinlock

drivers/comedi/drivers/pcl812.c pcl812_handle_dma() -> transfer_from_dma_buf()

Type Parameter Key Value
PARAM_VALUE 0 dev 4096-ptr_max
PARAM_VALUE 0 dev->attached 1
PARAM_VALUE 0 dev->private 4096-ptr_max
PARAM_VALUE 0 dev->private->dma 4096-ptr_max
PARAM_VALUE 1 s 4096-ptr_max
PARAM_VALUE 1 s->spin_lock.rlock.dep_map->name 0-255
BUF_SIZE 2 ptr 4096,8192,16384,65280,130816
DATA_SOURCE 0 dev $0
DATA_SOURCE 1 s $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
HALF_LOCKED2 irq