On Mon, Feb 14, 2022 at 05:34:41PM +0100, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > The get_user()/put_user() functions are meant to check for > access_ok(), while the __get_user()/__put_user() functions > don't. > > This broke in 4.19 for nds32, when it gained an extraneous > check in __get_user(), but lost the check it needs in > __put_user(). Can we follow the lead of MIPS (which this was originally copied from I think) and kill the pointless __get/put_user_check wrapper that just obsfucate the code?