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Subject: Re: [PATCH] lib: vsprintf: Add %pa format specifier for phys_addr_t
 types
From: Joe Perches <joe@perches.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stepan Moskovchenko <stepanm@codeaurora.org>,
        Rob Landley <rob@landley.net>,
        Andrew Morton <akpm@linux-foundation.org>,
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Date: Tue, 22 Jan 2013 20:14:28 -0800
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On Tue, 2013-01-22 at 23:26 +0100, Geert Uytterhoeven wrote:
> On Tue, Jan 22, 2013 at 6:47 AM, Stepan Moskovchenko
> <stepanm@codeaurora.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.