On Mon, Jul 30, 2018 at 09:50:55AM +0200, Oleksij Rempel wrote:
> On 27.07.2018 11:32, Robin Gong wrote:

> >>  #include <linux/slab.h>
> >> +#include <linux/kallsyms.h>

> > Is it necessary?

> yes, for pm_power_off_prepare

That's a *weird* header to have to use for that symbol, are you sure
there isn't something more specific - if there isn't there should be.