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Date: Wed, 6 Dec 2017 17:45:37 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	David Laight <David.Laight@...lab.com>,
	Kees Cook <keescook@...omium.org>, "Tobin C. Harding" <me@...in.cc>,
	"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
	"Jason A. Donenfeld" <Jason@...c4.com>,
	Theodore Ts'o <tytso@....edu>, Paolo Bonzini <pbonzini@...hat.com>,
	Tycho Andersen <tycho@...ho.ws>,
	"Roberts, William C" <william.c.roberts@...el.com>,
	Tejun Heo <tj@...nel.org>,
	Jordan Glover <Golden_Miller83@...tonmail.ch>,
	Greg KH <gregkh@...uxfoundation.org>,
	Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>,
	Ian Campbell <ijc@...lion.org.uk>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
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	Radim Krcm√°r <rkrcmar@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
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	Alexander Potapenko <glider@...gle.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH V11 4/5] vsprintf: add printk specifier %px

On (12/06/17 09:32), Geert Uytterhoeven wrote:
[..]
> >> show_fault_oops(struct pt_regs *regs, unsigned long error_code,
> >>                 unsigned long address)
> >> ...
> >>         printk(KERN_CONT " at %p\n", (void *) address);
> >>         printk(KERN_ALERT "IP: %pS\n", (void *)regs->ip);
> >
> > So %pS isn't %p, and shows the symbolic name.
> 
> If the symbolic name is available.
> Else it prints the non-hashed pointer value (FTR).

hm, indeed. and !CONFIG_KALLSYMS config turns %pS/%ps
into special_hex_number().

	-ss

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