Setting CPU affinity for current process on kernel module?

Hi, I have a kernel module which needs to perform CPU core-specific operations. I know that there's a kernel mode version of sched_setaffinity, however it's not exported to modules and can only be accessed through e.g. kallsyms_lookup_name, which is ugly. The alternative is to spawn a new kthread and bind it to the desired CPU before starting it, but I was wondering if there's a more straightforward method of doing this. Thanks!