From: Kees Cook > Sent: 08 December 2017 21:10 > >> There's no good reason to separate the access_ok() from the copy, > >> especially since the access_ok() size is hard-coded instead of using > >> sizeof(). Instead, just use copy_from_user() directly. > > > > Looks like an optimisation to save doing the access_ok() check > > for every 'fence'. > > If it really makes a difference, okay, but access_ok() checks are fast. :P Not compared to get_user() :-) David _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
