On Mon, Jan 30, 2017 at 04:45:21PM +0100, Borislav Petkov wrote: > On Mon, Jan 30, 2017 at 10:57:28AM +0100, Ingo Molnar wrote: > > Would anyone object to using u32 in these prototypes? > > Well, would there be any disadvantage to forcing them to u32? > Potentially by something else wanting to use those interfaces besides > the regset thing and that something else doesn't like u32s? > > Otherwise, I don't see a problem. > > I mean, if 4G are not enough for xstate dimensions then we have a whole > different problem.
This function pair was intended to be similar to user_regset_copyout(), user_regset_copyin() used for the standard-format XSAVE area copying. I totally agree it is complex and should be simplified. Why don't we do both places? Yu-cheng
