On Wed, May 12, 2021 at 08:57:53AM -0700, Dave Hansen wrote: > The changelog _helps_, but using a "user" function to handle kernel MMIO > for its error handling properties seems like it's begging for a comment. > > __put_user() also seems to have fun stuff like __chk_user_ptr(). It all > seems sketchy to me. Yeah, as Juergen already pointed out, there are certain problems with that too. But I don't want to write my own accessors, so I will introduce a separate user and kernel path to these functions. Regards, Joerg