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