Man page 9 : kthread_worker_fn

kthread_worker_fn - kthread function to process kthread_worker

int kthread_worker_fn(void *  worker_ptr );

worker_ptr
    pointer to initialized kthread_worker

This function can be used as threadfn to kthread_create or kthread_run with worker_ptr argument pointing to an initialized kthread_worker. The started kthread will process work_list until the it is stopped with kthread_stop. A kthread can also call this function directly after extra initialization.

Different kthreads can be used for the same kthread_worker as long as thereAqs only one kthread attached to it at any given time. A kthread_worker without an attached kthread simply collects queued kthread_works.