Re: [PATCH 0/5] add printk specifier %px, unique identifier

[Linus Torvalds]

On Tue, Nov 28, 2017 at 9:41 AM, Joe Perches <joe@xxxxxxxxxxx> 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