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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Joe Perches <joe@perches.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	"Tobin C. Harding" <me@tobin.cc>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	"Theodore Ts'o" <tytso@mit.edu>,
	"Kees Cook" <keescook@chromium.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Tycho Andersen" <tycho@tycho.ws>,
	"Roberts, William C" <william.c.roberts@intel.com>,
	"Tejun Heo" <tj@kernel.org>,
	"Jordan Glover" <Golden_Miller83@protonmail.ch>,
	"Greg KH" <gregkh@linuxfoundation.org>,
	"Petr Mladek" <pmladek@suse.com>,
	"Ian Campbell" <ijc@hellion.org.uk>,
	"Sergey Senozhatsky" <sergey.senozhatsky@gmail.com>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Will Deacon" <wilal.deacon@arm.com>,
	"Steven Rostedt" <rostedt@goodmis.org>,
	"Chris Fries" <cfries@google.com>,
	"Dave Weinstein" <olorin@google.com>,
	"Daniel Micay" <danielmicay@gmail.com>,
	"Djalal Harouni" <tixxdz@gmail.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"KVM list" <kvm@vger.kernel.org>,
	"kernel-hardening@lists.openwall.com"
	<kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH 0/5] add printk specifier %px, unique identifier
Date: Tue, 28 Nov 2017 10:04:42 -0800	[thread overview]
Message-ID: <CA+55aFyK2-1JAotJuoxRo3me5OPXCzrrs3isOprhZnq-omNTjg@mail.gmail.com> (raw)
In-Reply-To: <1511890919.19952.42.camel@perches.com>

On Tue, Nov 28, 2017 at 9:41 AM, Joe Perches <joe@perches.com> wrote:
>
> Perhaps if there are really tools that parse this
> the [<leading-0-width>] should be kept the same too.

If we really get failures, we can do that.

But since the width is already different on 32-bit and 64-bit, I
seriously doubt there are any tools that would care about the width.
They'd already be horribly broken.

So let's not waste space with pointless zeroes unless somebody finds a
case where it matters.

            Linus

  reply	other threads:[~2017-11-28 18:04 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-27 23:40 [PATCH 0/5] add printk specifier %px, unique identifier Tobin C. Harding
2017-11-27 23:40 ` [PATCH 1/5] docs: correct documentation for %pK Tobin C. Harding
2017-11-28  0:46   ` Kees Cook
2017-11-27 23:40 ` [PATCH 2/5] vsprintf: refactor pK code out of pointer() Tobin C. Harding
2017-11-27 23:40 ` [PATCH 3/5] vsprintf: add specifier %px, unique identifier Tobin C. Harding
2017-11-27 23:40 ` [PATCH 4/5] KVM: use %px to print token identifier Tobin C. Harding
2017-11-27 23:40 ` [PATCH 5/5] vfio_pci: " Tobin C. Harding
2017-11-28  0:03 ` [PATCH 0/5] add printk specifier %px, unique identifier Linus Torvalds
2017-11-28  1:09   ` Linus Torvalds
2017-11-28  6:26     ` Eric W. Biederman
2017-11-28 10:12       ` David Laight
2017-11-28 17:33       ` Linus Torvalds
2017-11-28 17:41         ` Joe Perches
2017-11-28 18:04           ` Linus Torvalds [this message]
2017-11-28 18:11             ` Linus Torvalds
2017-11-28 17:44         ` David Laight
2017-11-28  0:57 ` Kees Cook
2017-11-28  1:43   ` Tobin C. Harding

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