linux-kernel - Re: [PATCH] lib: vsprintf: Add %pa format specifier for phys_addr

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Date:	Tue, 22 Jan 2013 20:14:28 -0800
From:	Joe Perches <joe@...ches.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Stepan Moskovchenko <stepanm@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	George Spelvin <linux@...izon.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Andrei Emeltchenko <andrei.emeltchenko@...el.com>,
	mingo@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] lib: vsprintf: Add %pa format specifier for phys_addr_t
 types

On Tue, 2013-01-22 at 23:26 +0100, Geert Uytterhoeven wrote:
> On Tue, Jan 22, 2013 at 6:47 AM, Stepan Moskovchenko
> <stepanm@...eaurora.org> wrote:
> > Add the %pa format specifier for printing a phys_addr_t
> > type, since the physical address size on some platforms
> > can vary based on build options, regardless of the native
> > integer type.
> 
> I'm not so sure it's a good idea to start using %p for integer types.

It would also require that some automatic variables
that could otherwise be used in registers be put on
the stack.


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