> -----Original Message----- > From: linus...@gmail.com [mailto:linus...@gmail.com] On Behalf Of Linus > Torvalds > Sent: Tuesday, October 10, 2017 4:17 PM > To: Tobin C. Harding <m...@tobin.cc> > Cc: kernel-harden...@lists.openwall.com; KVM list <k...@vger.kernel.org>; > Linux Kernel Mailing List <linux-kernel@vger.kernel.org>; Kees Cook > <keesc...@chromium.org>; Paolo Bonzini <pbonz...@redhat.com>; Tycho > Andersen <ty...@docker.com>; Roberts, William C > <william.c.robe...@intel.com>; Tejun Heo <t...@kernel.org>; Jordan Glover > <golden_mille...@protonmail.ch>; Greg KH <gre...@linuxfoundation.org>; > Petr Mladek <pmla...@suse.com>; Joe Perches <j...@perches.com>; Ian > Campbell <i...@hellion.org.uk>; Sergey Senozhatsky > <sergey.senozhat...@gmail.com>; Catalin Marinas <catalin.mari...@arm.com>; > Will Deacon <will.dea...@arm.com>; Steven Rostedt <rost...@goodmis.org>; > Chris Fries <cfr...@google.com>; Dave Weinstein <olo...@google.com>; Daniel > Micay <danielmi...@gmail.com>; Djalal Harouni <tix...@gmail.com> > Subject: Re: [PATCH 0/3] add %pX specifier > > On Tue, Oct 10, 2017 at 4:09 PM, Tobin C. Harding <m...@tobin.cc> wrote: > > > > This patch is a softer version of Linus' suggestion because it does > > not change the behaviour of the %p specifier. I don't see the benefit > > in making such a breaking change without addressing the issue of %x (and I > don't the balls to right now). > > The thing is, this continues to have the exact same issue that %pK has > - because it is opt-in, effectively nobody will actually use it. > > That's why I would suggest that if we do this way, we really change %p and %pa > to use the hashed value, to convert *everybody*. And then people who have a > good reason to actually expose the pointer have to do the extra work and opt > out.
Yes we cannot make this opt in or there is really no point in doing it. %pK and mistakes got us here to this point. I see there is multiple threads, this getting really fun to follow. > > Linus
