Re: [RFC 5/6] lib: vsprintf: Add "%paP", "%padP" options

From: Greg KH
Date: Thu May 18 2017 - 10:12:30 EST


On Tue, May 16, 2017 at 04:41:04PM +0200, Petr Mladek wrote:
> On Fri 2017-05-05 21:07:47, Greg KH wrote:
> > From: Chris Fries <cfries@xxxxxxxxxx>
> >
> > Add %paP and %padP for physical address that need to always be shown
> > regardless of kptr restrictions.
> >
> > Cc: William Roberts <william.c.roberts@xxxxxxxxx>
> > Cc: Dave Weinstein <olorin@xxxxxxxxxx>
> > Signed-off-by: Chris Fries <cfries@xxxxxxxxxx>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > ---
> > Documentation/printk-formats.txt | 10 ++++++----
> > lib/vsprintf.c | 12 +++++++++---
> > 2 files changed, 15 insertions(+), 7 deletions(-)
>
> This patch should update also the section about
> kptr_restrict in Documentation/sysctl/kernel.txt.
> It should mention that the trailing P allows to see
> pointers also for %pa, and %p[rR] formats when
> the level is 4.

Ah, good point, will do!

greg k-h